:root{
  --bg:#070b12; --bg2:#0b1119; --panel:#101827; --panel2:#16202f; --line:#1f2c3f;
  --text:#eaf1f8; --dim:#93a3b8; --faint:#5d6b7e;
  --accent:#2dd4bf; --accent2:#a78bfa; --pink:#f472b6; --gold:#fbbf24; --red:#f87171; --green:#4ade80;
  --grad:linear-gradient(120deg,#14b8a6,#8b5cf6 55%,#ec4899);
  --radius:16px; --shadow:0 10px 34px rgba(0,0,0,.45);
  --glow:0 6px 24px rgba(45,212,191,.18);
}
[data-theme="light"]{
  --bg:#f2f5fa; --bg2:#ffffff; --panel:#ffffff; --panel2:#eaeff7; --line:#dce4ef;
  --text:#131e2b; --dim:#57687d; --faint:#8ea0b5;
  --shadow:0 10px 30px rgba(25,45,80,.14); --glow:0 6px 20px rgba(20,184,166,.18);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:var(--bg); color:var(--text);
  font-family:'Segoe UI',system-ui,-apple-system,Roboto,sans-serif;
  font-size:15px; line-height:1.55; -webkit-font-smoothing:antialiased;
  background-image:radial-gradient(1200px 500px at 85% -10%,rgba(56,189,248,.16),transparent 60%),
                   radial-gradient(900px 420px at -10% 20%,rgba(25,196,192,.13),transparent 55%);
  background-attachment:fixed;
}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,select,textarea{font:inherit;color:var(--text)}
a{color:var(--accent)}
::selection{background:rgba(45,212,191,.3)}
::-webkit-scrollbar{height:8px;width:10px}
::-webkit-scrollbar-thumb{background:var(--panel2);border-radius:8px}
::-webkit-scrollbar-track{background:transparent}

#shell{display:flex;min-height:100vh}
#sidebar{
  width:220px;flex-shrink:0;position:sticky;top:0;height:100vh;
  display:flex;flex-direction:column;gap:6px;padding:18px 12px;
  background:rgba(11,17,25,.75);backdrop-filter:blur(14px);border-right:1px solid var(--line);z-index:40;
}
[data-theme="light"] #sidebar{background:rgba(255,255,255,.8)}
.brand{display:flex;align-items:center;gap:10px;padding:6px 10px 18px;font-weight:800;font-size:21px;letter-spacing:-.3px}
.brand-ico{font-size:24px;animation:floaty 4s ease-in-out infinite}
#nav{display:flex;flex-direction:column;gap:3px}
.nav-item{
  display:flex;align-items:center;gap:11px;padding:11px 13px;border-radius:12px;
  color:var(--dim);font-weight:600;transition:.18s;text-align:left;width:100%;position:relative;
}
.nav-item:hover{background:var(--panel);color:var(--text);transform:translateX(3px)}
[dir="rtl"] .nav-item:hover{transform:translateX(-3px)}
.nav-item.active{background:linear-gradient(100deg,rgba(7,142,174,.16),rgba(25,196,192,.13),rgba(56,189,248,.08));color:var(--text);box-shadow:inset 0 0 0 1px rgba(7,142,174,.25)}
.nav-item .ico{font-size:18px;width:22px;text-align:center}
.nav-badge{margin-left:auto;background:linear-gradient(120deg,#078eae,#19c4c0);color:#fff;font-size:11px;font-weight:800;border-radius:20px;padding:1px 8px;animation:pop .3s}
.side-foot{margin-top:auto;padding:8px}
.streak-chip{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:6px 13px;font-weight:700;display:inline-block;animation:flamePulse 2.4s ease-in-out infinite}

#view{flex:1;padding:26px 34px 130px;max-width:1120px;outline:none;animation:fadeUp .4s cubic-bezier(.2,.7,.3,1)}
#view.anim{animation:fadeUp .4s cubic-bezier(.2,.7,.3,1)}
@media (max-width:760px){
  #shell{flex-direction:column}
  #sidebar{
    width:100%;height:auto;position:fixed;bottom:0;top:auto;z-index:50;
    flex-direction:row;align-items:center;padding:6px 4px calc(8px + env(safe-area-inset-bottom));
    border-right:none;border-top:1px solid var(--line);
  }
  .brand,.side-foot{display:none}
  #nav{flex-direction:row;width:100%;justify-content:space-around;gap:0}
  .nav-item{flex-direction:column;gap:3px;padding:7px 2px;font-size:10px;flex:1;align-items:center;border-radius:10px}
  .nav-item:hover{transform:none}
  .nav-item .ico{font-size:20px;width:auto}
  .nav-item .lbl{font-size:9.5px}
  .nav-badge{position:absolute;transform:translate(15px,-27px);margin:0}
  #view{padding:16px 14px 175px}
}

/* headings & layout */
h1.page{font-size:27px;margin-bottom:4px;font-weight:800;letter-spacing:-.4px}
.page-sub{color:var(--dim);margin-bottom:22px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.grow{flex:1}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;transition:.2s}
.grid{display:grid;gap:14px}
.grid.cols-2{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.grid.cols-3{grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}
.grid>*{animation:fadeUp .45s cubic-bezier(.2,.7,.3,1) both}
.grid>*:nth-child(2){animation-delay:.04s}.grid>*:nth-child(3){animation-delay:.08s}
.grid>*:nth-child(4){animation-delay:.12s}.grid>*:nth-child(5){animation-delay:.16s}
.grid>*:nth-child(6){animation-delay:.2s}.grid>*:nth-child(n+7){animation-delay:.24s}
.muted{color:var(--dim)} .tiny{font-size:12px} .small{font-size:13px}
.spacer{height:18px}

/* hero (Today) */
.hero{
  position:relative;border-radius:22px;padding:26px 26px 22px;margin-bottom:20px;overflow:hidden;
  background:linear-gradient(120deg,rgba(7,142,174,.32),rgba(25,196,192,.34) 50%,rgba(56,189,248,.3));
  background-size:220% 220%;animation:heroShift 9s ease-in-out infinite;
  border:1px solid rgba(7,142,174,.35);box-shadow:var(--shadow);
}
.hero::after{content:'';position:absolute;inset:0;background:radial-gradient(600px 200px at 20% 0%,rgba(255,255,255,.10),transparent 60%);pointer-events:none}
.hero h1{font-size:26px;font-weight:800;letter-spacing:-.4px;margin-bottom:2px}
.hero .sub{color:var(--text);opacity:.85;margin-bottom:14px}
.hero-stats{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.hero-pill{background:rgba(0,0,0,.28);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:9px 15px;font-weight:700;display:flex;align-items:center;gap:8px;backdrop-filter:blur(6px)}
[data-theme="light"] .hero-pill{background:rgba(255,255,255,.5);border-color:rgba(0,0,0,.08)}
.flame{display:inline-block;animation:flamePulse 1.8s ease-in-out infinite}

/* progress ring */
.ring{position:relative;width:64px;height:64px;flex-shrink:0}
.ring svg{transform:rotate(-90deg)}
.ring .bgc{stroke:rgba(255,255,255,.18);fill:none;stroke-width:7}
.ring .fgc{stroke:url(#ringGrad);fill:none;stroke-width:7;stroke-linecap:round;transition:stroke-dashoffset 1s cubic-bezier(.2,.7,.3,1)}
.ring .ring-num{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px}

/* buttons */
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:10px 17px;border-radius:12px;
  background:var(--panel2);border:1px solid var(--line);font-weight:700;transition:.16s;
}
.btn:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--glow)}
.btn:active{transform:scale(.96)}
.btn.primary{background:linear-gradient(120deg,#078eae,#19c4c0);border-color:transparent;color:#fff}
.btn.primary:hover{filter:brightness(1.12)}
.btn.violet{background:linear-gradient(120deg,#0ea5c6,#078eae);border-color:transparent;color:#fff}
.btn.danger{color:var(--red)}
.btn.sm{padding:6px 12px;font-size:13px}
.btn:disabled{opacity:.55;cursor:wait;transform:none;box-shadow:none}
.btn .spin{display:inline-block;animation:spin 1s linear infinite}

.pill{padding:8px 15px;border-radius:20px;border:1px solid var(--line);background:var(--panel);font-size:13px;font-weight:700;color:var(--dim);transition:.16s}
.pill:hover{color:var(--text);transform:translateY(-1px)}
.pill:active{transform:scale(.95)}
.pill.on{background:linear-gradient(120deg,rgba(7,142,174,.22),rgba(25,196,192,.2));border-color:var(--accent);color:var(--text);box-shadow:var(--glow)}

.input,textarea.input,select.input{
  width:100%;background:var(--bg2);border:1px solid var(--line);border-radius:12px;
  padding:10px 13px;outline:none;transition:.15s;
}
.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(7,142,174,.15)}
textarea.input{resize:vertical;min-height:90px}
label.lbl{display:block;font-size:13px;font-weight:700;color:var(--dim);margin:12px 0 5px}

/* library cards */
.lib-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px;cursor:pointer;transition:.22s cubic-bezier(.2,.7,.3,1);position:relative;overflow:hidden;
  display:block;width:100%;text-align:start;color:inherit;
}
.lib-card:hover{transform:translateY(-5px) scale(1.015);box-shadow:var(--shadow);border-color:var(--accent)}
.lib-emoji{
  width:100%;height:150px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:44px;margin-bottom:10px;background:linear-gradient(135deg,rgba(7,142,174,.2),rgba(25,196,192,.22),rgba(56,189,248,.14));
}
.lib-coverimg{width:100%;height:150px;object-fit:cover;border-radius:12px;margin-bottom:10px;background:var(--panel2);box-shadow:0 6px 18px rgba(0,0,0,.35)}
.lib-title{font-weight:700;line-height:1.3;margin-bottom:2px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.lib-author{display:block;color:var(--dim);font-size:13px}
.lib-tags{margin-top:8px;display:flex;gap:5px;flex-wrap:wrap}
.tag{font-size:11px;background:var(--panel2);border-radius:6px;padding:2px 8px;color:var(--dim)}
.status-dot{position:absolute;top:12px;right:12px;font-size:11px;font-weight:800;padding:3px 10px;border-radius:20px;backdrop-filter:blur(8px);z-index:2}
.status-new{background:rgba(20,26,36,.7);color:#cbd5e1}
.status-summarized{background:rgba(20,184,166,.85);color:#fff}
.status-done{background:rgba(74,222,128,.85);color:#053b1c}

/* shelves (Explore / Picks) */
.shelf-head{display:flex;align-items:baseline;gap:10px;margin:20px 0 10px}
.shelf-head b{font-size:17px}
.shelf-head .tiny{color:var(--faint)}
.shelf{display:flex;gap:12px;overflow-x:auto;padding:6px 2px 14px;scroll-snap-type:x proximity;scrollbar-width:thin}
.shelf-card{
  flex:0 0 128px;cursor:pointer;scroll-snap-align:start;position:relative;
  transition:.22s cubic-bezier(.2,.7,.3,1);
}
.shelf-card:hover{transform:translateY(-6px)}
.shelf-card .cover-wrap{
  position:relative;width:128px;height:184px;border-radius:12px;overflow:hidden;
  background:linear-gradient(160deg,var(--panel2),var(--panel));box-shadow:0 8px 20px rgba(0,0,0,.4);
  border:1px solid var(--line);
}
.shelf-card:hover .cover-wrap{box-shadow:0 14px 30px rgba(0,0,0,.55),var(--glow)}
.shelf-card img{width:100%;height:100%;object-fit:cover;display:block}
.cover-ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:6px;padding:10px;text-align:center}
.cover-ph .e{font-size:30px}
.cover-ph .t{font-size:11px;font-weight:700;color:var(--dim);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.cover-shimmer{position:absolute;inset:0;background:linear-gradient(100deg,transparent 30%,rgba(255,255,255,.07) 50%,transparent 70%);background-size:220% 100%;animation:shimmer 1.4s infinite}
.shine{position:absolute;inset:0;background:linear-gradient(115deg,transparent 40%,rgba(255,255,255,.22) 50%,transparent 60%);background-size:250% 100%;background-position:120% 0;transition:background-position .6s;pointer-events:none}
.shelf-card:hover .shine{background-position:-40% 0}
.shelf-add{
  position:absolute;top:8px;right:8px;width:28px;height:28px;border-radius:50%;
  background:linear-gradient(120deg,#078eae,#19c4c0);color:#fff;font-weight:800;font-size:16px;
  display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(0,0,0,.4);
  opacity:.92;transition:.15s;z-index:3;
}
.shelf-add:hover{transform:scale(1.15)}
.shelf-title{font-size:12px;font-weight:700;margin-top:8px;line-height:1.25;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.shelf-author{font-size:11px;color:var(--faint);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.in-lib{position:absolute;inset:0;background:rgba(4,20,17,.55);display:flex;align-items:center;justify-content:center;font-size:26px;z-index:2;backdrop-filter:blur(1px)}

/* sub-tab switch (Library) */
.seg{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:4px;gap:4px;margin-bottom:16px}
.seg button{padding:8px 18px;border-radius:10px;font-weight:700;color:var(--dim);transition:.18s}
.seg button.on{background:linear-gradient(120deg,rgba(7,142,174,.25),rgba(25,196,192,.25));color:var(--text);box-shadow:var(--glow)}

/* FAB */
.fab{
  position:fixed;right:18px;bottom:96px;z-index:45;width:56px;height:56px;border-radius:50%;
  background:var(--grad);background-size:200% 200%;animation:heroShift 6s ease-in-out infinite;
  color:#fff;font-size:26px;font-weight:800;display:none;align-items:center;justify-content:center;
  box-shadow:0 10px 26px rgba(7,142,174,.5);
}
.fab:active{transform:scale(.92)}
[dir="rtl"] .fab{right:auto;left:18px}
@media (max-width:760px){.fab{display:flex}}

/* item page */
.item-head{display:flex;gap:16px;align-items:flex-start;margin-bottom:8px}
.item-emoji{width:76px;height:110px;font-size:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(7,142,174,.22),rgba(25,196,192,.22));flex-shrink:0}
.item-cover{width:76px;height:110px;object-fit:cover;border-radius:12px;flex-shrink:0;box-shadow:0 8px 22px rgba(0,0,0,.45);animation:pop .35s}
.tabbar{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:18px 0;overflow-x:auto;scrollbar-width:none}
.tabbar::-webkit-scrollbar{display:none}
.tab{padding:9px 15px;font-weight:700;color:var(--dim);border-bottom:2px solid transparent;white-space:nowrap;transition:.18s}
.tab:hover{color:var(--text)}
.tab.on{color:var(--text);border-bottom-color:var(--accent)}

/* markdown */
.md{max-width:720px}
.md h1{font-size:24px;margin:20px 0 10px;font-weight:800}
.md h2{font-size:19px;margin:22px 0 8px;color:var(--accent)}
.md h3{font-size:16px;margin:16px 0 6px}
.md p{margin:9px 0}
.md ul,.md ol{margin:9px 0 9px 22px}
.md li{margin:4px 0}
.md blockquote{border-left:3px solid var(--accent2);padding:4px 14px;margin:10px 0;color:var(--dim);background:var(--panel);border-radius:0 10px 10px 0}
.md code{background:var(--panel2);border-radius:5px;padding:1px 6px;font-size:13px}
.md hr{border:none;border-top:1px solid var(--line);margin:16px 0}
.md em{color:var(--dim)}
.md strong{color:var(--text)}

/* chat */
.chat-box{display:flex;flex-direction:column;gap:10px;max-width:720px}
.msg{padding:11px 15px;border-radius:16px;max-width:85%;white-space:pre-wrap;animation:fadeUp .3s}
.msg.user{align-self:flex-end;background:linear-gradient(120deg,#0d9488,#14b8a6);color:#fff;border-bottom-right-radius:4px}
.msg.ai{align-self:flex-start;background:var(--panel);border:1px solid var(--line);border-bottom-left-radius:4px}
.msg.ai .md{max-width:none}
.chat-input-row{display:flex;gap:8px;margin-top:14px;max-width:720px}

/* podcast */
.pod-line{display:flex;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);max-width:720px;transition:.25s}
.pod-line.playing{background:linear-gradient(90deg,rgba(45,212,191,.12),transparent);border-radius:10px;padding:9px 10px;transform:scale(1.01)}
.pod-who{flex-shrink:0;width:52px;font-weight:800;font-size:13px}
.pod-who.A{color:var(--accent)} .pod-who.B{color:var(--accent2)}

/* flashcards */
.fc-stage{max-width:640px;margin:0 auto}
.fc-card{
  background:linear-gradient(160deg,var(--panel),var(--panel2));border:1px solid var(--line);border-radius:22px;min-height:270px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  padding:34px 30px;font-size:19px;cursor:pointer;box-shadow:var(--shadow);transition:.2s;
  white-space:pre-wrap;animation:pop .35s cubic-bezier(.2,.7,.3,1);
}
.fc-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.fc-back{font-size:17px;color:var(--text)}
.fc-grades{display:flex;gap:10px;margin-top:18px;justify-content:center;flex-wrap:wrap}
.fc-grade{flex:1;min-width:105px;max-width:150px;padding:13px 8px;border-radius:14px;font-weight:800;border:1px solid var(--line);background:var(--panel);transition:.16s;text-align:center}
.fc-grade:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.fc-grade:active{transform:scale(.94)}
.fc-grade small{display:block;font-weight:600;color:var(--dim);font-size:11px;margin-top:2px}
.fc-grade.again{color:var(--red)} .fc-grade.hard{color:var(--gold)}
.fc-grade.good{color:var(--accent)} .fc-grade.easy{color:var(--green)}
.fc-list-item{display:flex;gap:10px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--line)}

/* stats */
.stat-tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:18px}
.stat-tile{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px;transition:.2s}
.stat-tile:hover{transform:translateY(-3px);box-shadow:var(--glow);border-color:var(--accent)}
.stat-num{font-size:26px;font-weight:800}
.stat-lbl{color:var(--dim);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.5px}
.bars{display:flex;gap:6px;align-items:flex-end;height:120px;padding-top:10px}
.bar-col{flex:1;display:flex;flex-direction:column;align-items:center;gap:5px;height:100%;justify-content:flex-end}
.bar{width:100%;max-width:34px;border-radius:6px 6px 2px 2px;background:linear-gradient(180deg,var(--accent),var(--accent2));min-height:2px;animation:growBar .8s cubic-bezier(.2,.7,.3,1) both}
.bar-lbl{font-size:10px;color:var(--faint)}

/* mindmap */
.map-wrap{overflow:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg2)}
.map-wrap svg{display:block}
.map-node{fill:var(--panel);stroke:var(--line)}
.map-node.root{fill:#0d9488;stroke:none}
.map-node.branch{fill:var(--panel2);stroke:var(--accent2)}
.map-txt{fill:var(--text);font-size:12px;font-weight:600}
.map-txt.root{fill:#fff;font-size:13px}
.map-link{stroke:var(--line);stroke-width:1.5;fill:none}

/* player bar */
.playerbar{
  position:fixed;left:50%;transform:translateX(-50%);bottom:16px;z-index:60;
  display:flex;align-items:center;gap:8px;width:min(720px,calc(100vw - 24px));
  background:rgba(16,24,39,.85);border:1px solid var(--line);border-radius:18px;
  padding:10px 14px;box-shadow:var(--shadow);backdrop-filter:blur(14px);
  animation:slideUp .35s cubic-bezier(.2,.7,.3,1);
}
[data-theme="light"] .playerbar{background:rgba(255,255,255,.88)}
@media (max-width:760px){.playerbar{bottom:82px}}
.playerbar.hidden{display:none}
.pb-btn{font-size:20px;width:40px;height:40px;border-radius:50%;background:var(--grad);background-size:200% 200%;color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:.15s}
.pb-btn:active{transform:scale(.9)}
.pb-btn.sm{font-size:14px;width:30px;height:30px;background:var(--panel2);color:var(--text)}
.pb-mid{flex:1;min-width:0}
.pb-title{font-size:13px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pb-track{height:5px;background:var(--panel2);border-radius:4px;margin-top:5px;overflow:hidden}
.pb-fill{height:100%;width:0%;background:var(--grad);border-radius:4px;transition:width .3s}
.pb-sel{background:var(--bg2);border:1px solid var(--line);border-radius:8px;padding:4px 6px;font-size:12px;max-width:110px;color:var(--text)}
@media (max-width:640px){#pb-voice{display:none}}

/* modal */
.modal-back{position:fixed;inset:0;background:rgba(2,20,28,.68);z-index:200;display:flex;align-items:center;justify-content:center;padding:16px;backdrop-filter:blur(5px);animation:fadeIn .2s}
.modal{background:var(--bg2);border:1px solid var(--line);border-radius:20px;padding:24px;width:min(560px,100%);max-height:88vh;overflow:auto;box-shadow:var(--shadow);animation:pop .3s cubic-bezier(.2,.7,.3,1)}
.modal h2{margin-bottom:4px}
.modal-cover{width:96px;height:140px;object-fit:cover;border-radius:10px;box-shadow:0 8px 22px rgba(0,0,0,.5)}

/* toast */
#toast-root{position:fixed;top:18px;right:18px;z-index:220;display:flex;flex-direction:column;gap:8px}
.toast{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:12px;padding:11px 16px;box-shadow:var(--shadow);animation:slidein .3s cubic-bezier(.2,.7,.3,1);width:min(340px,calc(100vw - 36px));font-weight:600}
.toast.err{border-left-color:var(--red)}

/* highlight button */
.hl-btn{position:fixed;z-index:190;background:var(--grad);color:#fff;border:0;font-weight:700;font-size:13px;border-radius:20px;padding:8px 15px;cursor:pointer;box-shadow:0 8px 20px rgba(11,49,92,.34);animation:pop .25s}
.hl-btn.hidden{display:none}
.hl-item{border-left:3px solid var(--gold);background:var(--panel);border-radius:0 12px 12px 0;padding:10px 14px;margin:10px 0;max-width:720px}
#summary-md,#rd-page{-webkit-user-select:text;user-select:text}

/* paths */
.week-card{margin-bottom:16px}
.week-theme{font-weight:800;color:var(--accent2);margin-bottom:8px}
.path-item{display:flex;gap:10px;align-items:flex-start;padding:9px 0;border-bottom:1px solid var(--line)}
.path-item:last-child{border-bottom:none}
.path-check{width:22px;height:22px;border-radius:7px;border:2px solid var(--line);flex-shrink:0;margin-top:2px;display:flex;align-items:center;justify-content:center;font-size:12px;transition:.2s;cursor:pointer}
.path-check:hover{border-color:var(--accent)}
.path-check.on{background:linear-gradient(120deg,#14b8a6,#8b5cf6);border-color:transparent;color:#fff;animation:pop .3s}

/* practice */
.scenario-card{cursor:pointer;transition:.2s cubic-bezier(.2,.7,.3,1);text-align:start;color:inherit;width:100%}
.scenario-card b,.scenario-card>.muted{display:block}
.scenario-card:hover{transform:translateY(-5px) scale(1.01);border-color:var(--accent2);box-shadow:var(--shadow)}
.scen-emoji{font-size:32px;margin-bottom:8px;display:inline-block;transition:.3s}
.scenario-card:hover .scen-emoji{transform:scale(1.2) rotate(-6deg)}

.empty{color:var(--dim);text-align:center;padding:50px 20px}
.empty .big{font-size:46px;margin-bottom:12px;display:inline-block;animation:floaty 3.5s ease-in-out infinite}
.skel{animation:pulse 1.2s ease-in-out infinite}

/* confetti */
.confetti-box{position:fixed;inset:0;pointer-events:none;z-index:95;overflow:hidden}
.confetti{position:absolute;top:-14px;width:10px;height:10px;border-radius:2px;animation:confFall 2.4s ease-in forwards}

/* book covers RTL + misc */
[dir="rtl"] #sidebar{border-right:none;border-left:1px solid var(--line)}
[dir="rtl"] .hl-item{border-left:none;border-right:3px solid var(--gold);border-radius:12px 0 0 12px}
[dir="rtl"] .md blockquote{border-left:none;border-right:3px solid var(--accent2);border-radius:10px 0 0 10px}
[dir="rtl"] .toast{border-left:1px solid var(--line);border-right:3px solid var(--accent)}
[dir="rtl"] .toast.err{border-right-color:var(--red)}
[dir="rtl"] .status-dot{right:auto;left:12px}
[dir="rtl"] #toast-root{right:auto;left:18px}
[dir="rtl"] .shelf-add{right:auto;left:8px}
@media (max-width:760px){[dir="rtl"] #sidebar{border-left:none;border-top:1px solid var(--line)}}

/* keyframes */
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes fadeIn{from{opacity:0}}
@keyframes pop{from{opacity:0;transform:scale(.85)}to{opacity:1;transform:scale(1)}}
@keyframes slidein{from{transform:translateX(40px);opacity:0}}
@keyframes slideUp{from{transform:translate(-50%,30px);opacity:0}to{transform:translate(-50%,0);opacity:1}}
@keyframes shimmer{to{background-position:-120% 0}}
@keyframes heroShift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
@keyframes flamePulse{0%,100%{transform:scale(1)}50%{transform:scale(1.12)}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
@keyframes growBar{from{height:0}}
@keyframes pulse{0%,100%{opacity:.5}50%{opacity:1}}
@keyframes confFall{
  0%{transform:translateY(0) rotate(0);opacity:1}
  100%{transform:translateY(105vh) rotate(720deg);opacity:.8}
}
/* ===== vibrancy pass ===== */
h1.page{
  background:linear-gradient(115deg,#5eead4,#c4b5fd 55%,#f9a8d4);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  width:fit-content;
}
[data-theme="light"] h1.page{background:linear-gradient(115deg,#0d9488,#7c3aed 55%,#db2777);-webkit-background-clip:text;background-clip:text}
.hero::before{
  content:'';position:absolute;width:340px;height:340px;border-radius:50%;filter:blur(70px);opacity:.5;pointer-events:none;
  background:radial-gradient(circle,#2dd4bf,transparent 65%);
  top:-140px;right:-80px;animation:blobA 11s ease-in-out infinite;
}
.hero .blob2{
  position:absolute;width:280px;height:280px;border-radius:50%;filter:blur(60px);opacity:.45;pointer-events:none;
  background:radial-gradient(circle,#ec4899,transparent 65%);
  bottom:-130px;left:-60px;animation:blobB 13s ease-in-out infinite;
}
@keyframes blobA{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-50px,35px) scale(1.15)}}
@keyframes blobB{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(55px,-30px) scale(1.12)}}
.pill.cat{background:hsl(var(--h) 75% 58% / .13);border-color:hsl(var(--h) 75% 62% / .45);color:hsl(var(--h) 85% 74%)}
.pill.cat:hover{background:hsl(var(--h) 75% 58% / .24)}
.pill.cat.on{background:hsl(var(--h) 78% 55% / .32);border-color:hsl(var(--h) 85% 65%);color:#fff;box-shadow:0 4px 16px hsl(var(--h) 80% 55% / .35)}
[data-theme="light"] .pill.cat{color:hsl(var(--h) 70% 34%)}
[data-theme="light"] .pill.cat.on{color:hsl(var(--h) 80% 22%)}
.shelf-topic-label{
  display:inline-flex;align-items:center;background:#fff;color:#0b315c;
  border:1px solid rgba(11,49,92,.14);border-radius:8px;padding:4px 10px;
  box-shadow:0 4px 12px rgba(10,39,72,.08);font-weight:850;
}
.shelf{perspective:900px}
.shelf-card:hover{transform:translateY(-7px) rotate3d(0,1,0,6deg) scale(1.03)}
.nav-item.active .ico{animation:pop .35s cubic-bezier(.2,.7,.3,1)}
.read-badge{
  position:absolute;bottom:44px;left:6px;z-index:3;font-size:9px;font-weight:900;letter-spacing:.8px;
  background:linear-gradient(120deg,#fbbf24,#f59e0b);color:#3b2503;border-radius:6px;padding:2px 7px;
  box-shadow:0 3px 10px rgba(251,191,36,.4);animation:flamePulse 2.6s ease-in-out infinite;
}
[dir="rtl"] .read-badge{left:auto;right:6px}

/* ===== reader ===== */
.reader-top{
  display:flex;gap:10px;align-items:center;position:sticky;top:0;z-index:20;
  background:rgba(7,11,18,.85);backdrop-filter:blur(12px);padding:10px 4px;border-bottom:1px solid var(--line);margin-bottom:10px;
}
[data-theme="light"] .reader-top{background:rgba(242,245,250,.9)}
.reader-wrap{position:relative;max-width:700px;margin:0 auto}
.reader-page{
  font-family:Georgia,'Times New Roman',serif;font-size:18px;line-height:1.75;
  background:var(--panel);border:1px solid var(--line);border-radius:18px;
  padding:30px 34px;min-height:56vh;white-space:pre-wrap;box-shadow:var(--shadow);
}
.reader-page.turn{animation:pageTurn .3s ease-out}
@keyframes pageTurn{from{opacity:.25;transform:translateX(8px)}to{opacity:1;transform:none}}
[dir] .reader-page[dir="rtl"]{font-family:'Segoe UI',system-ui,serif}
.reader-zone{position:absolute;top:0;bottom:0;width:9%;cursor:pointer;border-radius:18px}
.reader-zone.left{left:0}
.reader-zone.right{right:0}
.reader-zone:hover{background:linear-gradient(90deg,rgba(25,196,192,.08),transparent)}
.reader-zone.right:hover{background:linear-gradient(-90deg,rgba(56,189,248,.08),transparent)}
.reader-slider{
  width:min(700px,100%);display:block;margin:14px auto 0;accent-color:#8b5cf6;height:5px;
}
@media (max-width:760px){
  .reader-top{gap:5px}
  .reader-top .btn.sm{min-width:36px;padding:7px 8px}
  .reader-page{padding:22px 18px;min-height:60vh}
}

/* ===== profile gate + PIN ===== */
.gate{
  position:fixed;inset:0;z-index:120;display:flex;align-items:center;justify-content:center;padding:20px;
  background:radial-gradient(1000px 500px at 80% -10%,rgba(56,189,248,.23),transparent 60%),
             radial-gradient(800px 460px at 0% 30%,rgba(25,196,192,.2),transparent 55%),var(--bg);
  overflow:auto;
}
.gate.hidden{display:none}
.gate-inner{text-align:center;max-width:640px;width:100%;animation:fadeUp .4s cubic-bezier(.2,.7,.3,1)}
.gate-title{font-size:22px;margin:6px 0 26px;color:var(--dim);font-weight:700}
.profile-grid{display:flex;gap:20px;flex-wrap:wrap;justify-content:center}
.pcard{cursor:pointer;transition:.2s cubic-bezier(.2,.7,.3,1);width:120px;color:inherit}
.pcard:hover{transform:translateY(-6px)}
.pavatar{
  width:104px;height:104px;border-radius:24px;display:flex;align-items:center;justify-content:center;font-size:48px;margin:0 auto 10px;
  background:linear-gradient(135deg,rgba(7,142,174,.22),rgba(25,196,192,.24),rgba(56,189,248,.16));
  border:2px solid transparent;transition:.2s;box-shadow:var(--shadow);
}
.pcard:hover .pavatar{border-color:var(--accent);box-shadow:0 12px 30px rgba(7,142,174,.3)}
.pnew .pavatar{background:var(--panel);border:2px dashed var(--line);font-weight:300;color:var(--dim)}
.pname{display:block;font-weight:700}
.pin-dots{display:flex;gap:14px;justify-content:center;margin:18px 0}
.pin-dots.shake{animation:shakeX .4s}
.pin-dot{width:16px;height:16px;border-radius:50%;border:2px solid var(--line);transition:.15s}
.pin-dot.on{background:var(--accent);border-color:var(--accent);transform:scale(1.15)}
.pinpad{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:260px;margin:0 auto}
.pin-key{
  height:64px;border-radius:16px;font-size:24px;font-weight:700;background:var(--panel);border:1px solid var(--line);transition:.12s;
}
.pin-key:hover{border-color:var(--accent);background:var(--panel2)}
.pin-key:active{transform:scale(.9);background:var(--accent);color:#062f3a}
@keyframes shakeX{0%,100%{transform:translateX(0)}20%{transform:translateX(-10px)}40%{transform:translateX(9px)}60%{transform:translateX(-6px)}80%{transform:translateX(4px)}}
.profile-chip{
  display:flex;align-items:center;gap:7px;background:var(--panel);border:1px solid var(--line);border-radius:20px;
  padding:6px 12px;margin-top:8px;width:100%;font-weight:700;transition:.15s;
}
.profile-chip:hover{border-color:var(--accent2);transform:translateY(-1px)}
@media (max-width:760px){#profile-chip{display:none}}

/* ===== shelf category label + search ===== */
.shelf-cat{font-size:10px;font-weight:800;margin-top:2px;color:hsl(var(--h) 80% 68%);text-transform:uppercase;letter-spacing:.4px}
[data-theme="light"] .shelf-cat{color:hsl(var(--h) 70% 40%)}
.explore-search{position:sticky;top:0;z-index:15;padding:6px 0 12px;background:linear-gradient(var(--bg) 70%,transparent)}
.no-hits{color:var(--dim);text-align:center;padding:30px}

/* ===== star rating ===== */
.stars{display:inline-flex;gap:3px;font-size:20px;cursor:pointer}
.star{color:var(--faint);transition:.15s;transform-origin:center}
.star:hover{transform:scale(1.25)}
.star.on{color:var(--gold);text-shadow:0 0 10px rgba(251,191,36,.5)}

/* ===== half-star rating ===== */
.halfstars{display:inline-flex;gap:2px}
.star-wrap{position:relative;display:inline-block;width:26px;height:26px;line-height:26px;font-size:24px}
.star-wrap .star-bg,.star-wrap .star-fg{position:absolute;inset:0;pointer-events:none}
.star-wrap .star-bg{color:var(--line)}
.star-wrap .star-fg{color:var(--gold);width:0;overflow:hidden;transition:width .15s}
.star-wrap.half .star-fg{width:50%}
.star-wrap.full .star-fg{width:100%}
.star-zone{position:absolute;top:0;bottom:0;width:50%;background:none;border:none;cursor:pointer;z-index:2;padding:0}
.star-zone.left{left:0}
.star-zone.right{right:0}
.star-wrap:hover .star-bg{color:var(--gold);opacity:.45}
.pill.sm{padding:5px 11px;font-size:12px}

/* ===== shelf chips on cards ===== */
.shelf-badge{position:absolute;top:12px;left:12px;z-index:2;font-size:10px;font-weight:800;padding:3px 9px;border-radius:20px;backdrop-filter:blur(8px);background:rgba(10,16,26,.72);color:#eaf1f8}
[data-theme="light"] .shelf-badge{background:rgba(255,255,255,.82);color:#17222e}
[dir="rtl"] .shelf-badge{left:auto;right:12px}
.card-stars{display:inline-flex;gap:1px;font-size:12px;color:var(--gold);margin-top:4px}

/* ===== reading pace in the reader ===== */
.reader-pace{color:var(--accent);font-weight:700}
.freeze-chip{background:rgba(96,165,250,.16);border:1px solid rgba(96,165,250,.4);color:#93c5fd;border-radius:20px;padding:3px 10px;font-size:11px;font-weight:700}
[data-theme="light"] .freeze-chip{color:#1d4ed8}

/* ===== stats: histogram + genre bars ===== */
.hist{display:flex;align-items:flex-end;gap:8px;height:90px;margin-top:10px}
.hist-col{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:5px;height:100%}
.hist-bar{width:100%;max-width:38px;border-radius:6px 6px 2px 2px;background:linear-gradient(180deg,var(--gold),#b45309);min-height:2px}
.hist-lbl{font-size:10px;color:var(--faint);white-space:nowrap}
.genre-row{display:flex;align-items:center;gap:10px;margin:7px 0}
.genre-name{font-size:12px;min-width:120px;color:var(--dim)}
.genre-track{flex:1;height:9px;background:var(--panel2);border-radius:6px;overflow:hidden}
.genre-fill{height:100%;border-radius:6px;background:linear-gradient(90deg,var(--accent),var(--accent2))}
.genre-num{font-size:11px;color:var(--faint);min-width:22px;text-align:right}
.wrap-card{background:linear-gradient(135deg,rgba(20,184,166,.16),rgba(139,92,246,.16),rgba(236,72,153,.12));border:1px solid rgba(167,139,250,.3)}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* ===== Sage product experience ===== */
:root{
  --bg:#effbff;
  --bg2:#ffffff;
  --panel:#ffffff;
  --panel2:#e4f7fb;
  --line:#c9eaf1;
  --text:#103848;
  --dim:#557682;
  --faint:#89a8b2;
  --accent:#078eae;
  --accent2:#16b8bd;
  --pink:#38bdf8;
  --gold:#d99a34;
  --red:#d9565a;
  --green:#168b75;
  --grad:linear-gradient(135deg,#078eae,#19c4c0);
  --shadow:0 16px 45px rgba(12,89,109,.10);
  --glow:0 12px 26px rgba(7,142,174,.18);
}
[data-theme="dark"]{
  --bg:#071e28;
  --bg2:#0a2934;
  --panel:#0e3540;
  --panel2:#164a56;
  --line:#276271;
  --text:#e7fafc;
  --dim:#a2c7ce;
  --faint:#6f9aa3;
  --accent:#50d9e4;
  --accent2:#43e0c5;
  --pink:#38bdf8;
  --shadow:0 18px 48px rgba(0,0,0,.3);
  --glow:0 12px 26px rgba(80,217,228,.16);
}
body{
  background:var(--bg);
  background-image:radial-gradient(900px 420px at 78% -10%,rgba(56,189,248,.14),transparent 65%),radial-gradient(760px 460px at -5% 92%,rgba(25,196,192,.11),transparent 70%);
}
#sidebar{
  width:244px;
  padding:23px 15px 16px;
  background:rgba(250,254,255,.76);
  border-right:1px solid var(--line);
  backdrop-filter:blur(18px);
}
[data-theme="dark"] #sidebar{background:rgba(8,41,52,.78)}
.brand{
  padding:5px 11px 27px;
  gap:10px;
  font-size:23px;
  letter-spacing:-.7px;
}
.brand-ico{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;font-size:20px;
  background:linear-gradient(145deg,#078eae,#19c4c0);
  box-shadow:0 8px 18px rgba(7,142,174,.22);
  animation:none;
}
.brand-name{font-weight:850}
#nav{gap:5px}
.nav-item{
  padding:11px 12px;
  color:var(--dim);
  border-radius:11px;
  font-size:14px;
  transition:background .16s,color .16s,transform .16s;
}
.nav-item:hover{background:rgba(7,142,174,.08);color:var(--text);transform:translateX(2px)}
.nav-item.active{
  color:var(--accent);
  background:linear-gradient(90deg,rgba(7,142,174,.15),rgba(25,196,192,.07));
  box-shadow:inset 0 0 0 1px rgba(7,142,174,.1);
}
.nav-item .ico{font-size:17px}
.side-foot{padding:9px 3px 0}
.streak-chip,.profile-chip{background:rgba(255,255,255,.62);border-color:var(--line)}
[data-theme="dark"] .streak-chip,[data-theme="dark"] .profile-chip{background:var(--panel)}
#view{
  max-width:1280px;
  padding:37px 44px 150px;
  animation:none;
}

/* Home */
.sage-home{max-width:1120px;margin:0 auto;animation:fadeUp .45s cubic-bezier(.2,.7,.3,1)}
.sage-home-top{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:29px}
.sage-overline,.sage-section-kicker{
  margin:0 0 7px;color:var(--accent);font-size:10px;font-weight:850;letter-spacing:1.2px;
}
.sage-home h1{font-size:37px;line-height:1.08;letter-spacing:-1.5px;margin:0;color:var(--text);max-width:630px}
.sage-home-sub{margin:10px 0 0;color:var(--dim);font-size:15px}
.sage-create-btn,.sage-journey-card button{
  border-radius:12px;padding:11px 15px;background:var(--text);color:var(--bg2);font-weight:750;
  box-shadow:0 10px 20px rgba(7,89,109,.14);white-space:nowrap;transition:.18s;
}
.sage-create-btn:hover,.sage-journey-card button:hover{transform:translateY(-2px);box-shadow:0 14px 26px rgba(7,89,109,.22)}
.sage-hero-card{
  min-height:357px;border-radius:26px;overflow:hidden;display:flex;align-items:stretch;position:relative;
  background:linear-gradient(125deg,#073846 0%,#075466 58%,#08767a 100%);color:#fff;box-shadow:0 21px 48px rgba(7,59,71,.20);
}
.sage-hero-card::before{content:'';position:absolute;inset:0;background:radial-gradient(450px 300px at 79% 12%,rgba(56,189,248,.35),transparent 67%),radial-gradient(450px 320px at 16% 120%,rgba(45,212,191,.24),transparent 70%);pointer-events:none}
.sage-hero-copy{position:relative;z-index:1;padding:42px 0 35px 43px;width:63%;display:flex;flex-direction:column;align-items:flex-start}
.sage-live{font-size:10px;letter-spacing:1.1px;font-weight:850;color:#e8fbfd;display:flex;align-items:center;gap:7px}
.sage-live span{width:7px;height:7px;border-radius:50%;background:#6ee7f2;box-shadow:0 0 0 5px rgba(110,231,242,.14)}
.sage-source{color:#bce8ec;font-size:13px;margin:22px 0 8px}
.sage-hero-card h2{font-size:31px;line-height:1.12;letter-spacing:-1.1px;max-width:585px;margin:0}
.sage-hero-description{color:#c8e9ec;line-height:1.58;max-width:475px;margin:13px 0 20px;font-size:14px}
.sage-hero-actions{display:flex;gap:13px;align-items:center}
.sage-play-btn{
  min-height:43px;padding:0 18px 0 11px;border-radius:12px;background:#ddf8fa;color:#087d98;font-weight:800;
  display:flex;align-items:center;gap:9px;transition:.17s;
}
.sage-play-btn span{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;background:#bfeff3;color:#087d98;font-size:11px;padding-left:1px}
.sage-play-btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(0,0,0,.18)}
.sage-link-btn{color:#e8fbfd;font-size:13px;font-weight:750;padding:8px 2px}
.sage-link-btn span{font-size:16px;margin-left:4px}
.sage-meta-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:auto;padding-top:20px;color:#b7e4e8;font-size:11px;font-weight:650}
.sage-hero-art-wrap{
  position:absolute;right:0;top:0;width:43%;height:100%;display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.sage-hero-art-wrap::before{content:'';position:absolute;width:310px;height:310px;border-radius:50%;background:linear-gradient(135deg,rgba(125,211,252,.42),rgba(45,212,191,.32));filter:blur(2px);transform:translate(31px,7px)}
.sage-lesson-cover{position:relative;z-index:1;width:174px;height:242px;object-fit:cover;border-radius:9px;box-shadow:18px 23px 38px rgba(0,0,0,.34);transform:rotate(6deg)}
.sage-lesson-orb{
  position:relative;z-index:1;width:184px;height:184px;border-radius:45% 55% 54% 46% / 46% 44% 56% 54%;
  display:grid;place-items:center;background:linear-gradient(135deg,#38bdf8,#14b8a6 70%);box-shadow:18px 23px 38px rgba(0,0,0,.26);transform:rotate(9deg);
}
.sage-lesson-orb span{font-size:64px;transform:rotate(-9deg)}
.sage-art-glow{position:absolute;width:420px;height:100px;bottom:-69px;right:-30px;border-radius:50%;background:rgba(45,212,191,.28);filter:blur(30px)}
.sage-dashboard-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:16px}
.sage-progress-card,.sage-review-card{
  border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.65);padding:22px 23px;box-shadow:0 8px 24px rgba(7,89,109,.05);
}
[data-theme="dark"] .sage-progress-card,[data-theme="dark"] .sage-review-card{background:var(--panel)}
.sage-progress-title{display:flex;align-items:baseline;gap:8px;margin:4px 0 14px}.sage-progress-title strong{font-size:25px;letter-spacing:-.8px}.sage-progress-title span{color:var(--dim);font-size:12px}
.sage-progress-track{height:7px;border-radius:99px;background:var(--panel2);overflow:hidden}.sage-progress-track span{height:100%;display:block;border-radius:99px;background:var(--grad);transition:width .6s}
.sage-progress-foot{display:flex;justify-content:space-between;color:var(--dim);font-size:11px;font-weight:700;margin-top:11px}
.sage-review-card{background:linear-gradient(130deg,#e1f8fc,#f4feff);border-color:#beeaf0}.sage-review-card strong{display:block;font-size:17px;letter-spacing:-.3px}.sage-review-card p{color:var(--dim);font-size:13px;line-height:1.45;margin:6px 0 13px}
[data-theme="dark"] .sage-review-card{background:linear-gradient(130deg,rgba(9,81,98,.58),rgba(8,52,64,.64));border-color:#207083}
.sage-review-card button,.sage-text-action{color:var(--accent);font-size:13px;font-weight:800}.sage-review-card button span,.sage-text-action span{font-size:16px;margin-left:5px}
.sage-section{margin-top:39px}.sage-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:14px}.sage-section h3,.sage-journey-card h3{margin:0;font-size:23px;letter-spacing:-.7px}.sage-text-action{white-space:nowrap;padding-bottom:2px}
.sage-continue-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.sage-continue-card,.sage-empty-continue{
  display:flex;text-align:left;align-items:center;gap:12px;padding:12px;border:1px solid var(--line);border-radius:15px;background:var(--panel);
  transition:transform .18s,box-shadow .18s,border-color .18s;min-width:0;
}
.sage-continue-card:hover,.sage-empty-continue:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(7,142,174,.36)}
.sage-continue-card img,.sage-mini-cover{width:49px;height:64px;object-fit:cover;border-radius:8px;flex:0 0 auto;background:linear-gradient(145deg,#c9f2f4,#d8eeff);display:grid;place-items:center;font-size:21px}
.sage-continue-copy{display:flex;flex-direction:column;min-width:0;gap:3px}.sage-eyebrow{color:var(--accent);font-size:9px;font-weight:850;letter-spacing:.7px;text-transform:uppercase;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sage-continue-copy strong{font-size:13px;line-height:1.25;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sage-continue-copy small,.sage-empty-continue small{font-size:11px;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sage-arrow{margin-left:auto;color:var(--accent);font-size:19px;line-height:1}.sage-empty-continue{grid-column:span 3;padding:17px}.sage-empty-continue>span:nth-child(2){display:flex;flex-direction:column;gap:4px;min-width:0}.sage-empty-continue strong{font-size:14px}
.sage-topic-row{display:grid;grid-template-columns:repeat(6,1fr);gap:9px}.sage-topic{min-height:91px;padding:13px 12px;border-radius:15px;background:var(--panel);border:1px solid var(--line);display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between;text-align:left;color:var(--text);font-size:12px;font-weight:750;transition:.17s}.sage-topic span{font-size:20px}.sage-topic b{align-self:flex-end;color:var(--accent);font-size:16px;line-height:1}.sage-topic:hover{background:linear-gradient(145deg,rgba(56,189,248,.12),rgba(25,196,192,.16));border-color:rgba(7,142,174,.28);transform:translateY(-3px)}
.sage-journey-card{margin-top:38px;display:flex;align-items:center;justify-content:space-between;gap:25px;border-radius:20px;padding:26px 29px;background:linear-gradient(120deg,#d7f4f7,#f3feff 65%,#d2f7ee);border:1px solid #bce6ea}.sage-journey-card h3{font-size:21px}.sage-journey-card p{margin:7px 0 0;color:#416671;font-size:13px;max-width:590px;line-height:1.5}.sage-journey-card button{background:#086176;color:#fff}
[data-theme="dark"] .sage-journey-card{background:linear-gradient(120deg,#0a3d4b,#0b4d57);border-color:#207083}.sage-journey-card p{color:#b9dfe4}
.sage-composer h2{font-size:27px;letter-spacing:-.8px;margin:4px 0 8px}.sage-composer-input{margin-top:13px;font-size:16px;padding:14px 15px}.sage-composer-suggestions{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}.sage-composer-suggestions button{border:1px solid var(--line);border-radius:99px;padding:7px 10px;background:var(--panel2);color:var(--dim);font-size:11px;font-weight:700}.sage-composer-suggestions button:hover{border-color:var(--accent);color:var(--accent)}

/* Discover and library refinements */
.seg{background:var(--panel2);border-radius:12px;padding:4px;display:inline-flex}.seg button{border-radius:9px}.seg button.on{background:var(--panel);color:var(--accent);box-shadow:0 3px 8px rgba(7,89,109,.08)}
.lib-card{background:var(--panel);border-color:var(--line);box-shadow:0 4px 16px rgba(7,89,109,.035)}.lib-card:hover{box-shadow:var(--shadow);border-color:rgba(7,142,174,.3)}
.fab{background:var(--text);color:var(--bg2);box-shadow:0 12px 28px rgba(7,89,109,.2)}
.modal{background:var(--bg2);border-color:var(--line);box-shadow:0 25px 64px rgba(7,59,71,.25)}
.input,textarea.input,select.input{background:var(--panel);border-color:var(--line)}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(7,142,174,.12)}

@media (max-width:960px){
  #view{padding:29px 25px 130px}
  .sage-topic-row{grid-template-columns:repeat(3,1fr)}
  .sage-continue-list{grid-template-columns:1fr}
  .sage-empty-continue{grid-column:span 1}
  .sage-hero-copy{width:68%;padding-left:33px}
  .sage-hero-art-wrap{width:38%}
  .sage-lesson-cover{width:135px;height:191px}
}
@media (max-width:760px){
  #view{padding:21px 16px 145px}
  #sidebar{width:100%;padding:5px 4px calc(6px + env(safe-area-inset-bottom));background:rgba(250,254,255,.94)}
  [data-theme="dark"] #sidebar{background:rgba(8,41,52,.94)}
  .brand{display:none}
  .nav-item{padding:7px 1px;border-radius:9px}
  .nav-item .ico{font-size:19px}.nav-item .lbl{font-size:9px}
  .sage-home-top{display:block;margin-bottom:21px}.sage-home h1{font-size:30px;max-width:440px}.sage-home-sub{font-size:13px}.sage-create-btn{margin-top:16px;width:100%}
  .sage-hero-card{min-height:490px;display:block}.sage-hero-copy{width:100%;padding:28px 24px;min-height:490px;justify-content:flex-end}.sage-hero-art-wrap{width:100%;height:230px;top:0}.sage-hero-art-wrap::before{width:270px;height:270px;transform:translate(44px,-35px)}.sage-lesson-cover{width:122px;height:171px;transform:rotate(5deg) translateY(-16px)}.sage-lesson-orb{width:136px;height:136px;transform:rotate(8deg) translateY(-15px)}.sage-lesson-orb span{font-size:49px}.sage-hero-card h2{font-size:27px}.sage-source{margin-top:0}.sage-hero-description{font-size:13px;margin:9px 0 15px}.sage-meta-row{margin-top:13px;padding-top:0;font-size:10px;gap:10px}
  .sage-dashboard-grid{grid-template-columns:1fr}.sage-progress-card,.sage-review-card{padding:18px}.sage-section{margin-top:31px}.sage-section h3{font-size:20px}.sage-section-head{align-items:center}.sage-text-action{font-size:11px}.sage-topic-row{grid-template-columns:repeat(2,1fr)}.sage-topic{min-height:79px}.sage-journey-card{display:block;padding:22px}.sage-journey-card button{width:100%;margin-top:17px}.sage-journey-card h3{font-size:19px}
}

/* ===== Navy blue & white theme ===== */
:root{
  --bg:#f3f7fc;
  --bg2:#ffffff;
  --panel:#ffffff;
  --panel2:#e7eef7;
  --line:#ccd9e8;
  --text:#0a2748;
  --dim:#5a6d83;
  --faint:#91a1b4;
  --accent:#0b315c;
  --accent2:#1f5d91;
  --pink:#376f9f;
  --gold:#b38a3b;
  --red:#b64b4b;
  --green:#34705a;
  --grad:linear-gradient(135deg,#0b315c,#1f5d91);
  --shadow:0 16px 45px rgba(10,39,72,.13);
  --glow:0 12px 26px rgba(11,49,92,.18);
}
[data-theme="dark"]{
  --bg:#06162a;
  --bg2:#0b2340;
  --panel:#102c4d;
  --panel2:#193b63;
  --line:#34587c;
  --text:#f7fbff;
  --dim:#b9c8d8;
  --faint:#7890a8;
  --accent:#9fc7e8;
  --accent2:#ffffff;
  --pink:#78a9d1;
  --gold:#d7b660;
  --green:#8fc2a5;
  --grad:linear-gradient(135deg,#9fc7e8,#ffffff);
  --shadow:0 18px 48px rgba(0,0,0,.3);
  --glow:0 12px 26px rgba(159,199,232,.16);
}
body{
  background-color:var(--bg);
  background-image:radial-gradient(900px 420px at 78% -10%,rgba(31,93,145,.14),transparent 65%),radial-gradient(760px 460px at -5% 92%,rgba(159,199,232,.12),transparent 70%);
}
#sidebar{background:rgba(255,255,255,.9)}
[data-theme="dark"] #sidebar{background:rgba(6,22,42,.92)}
.brand-ico,.nav-badge,.btn.primary,.btn.violet,.path-check.on,.msg.user{
  background:linear-gradient(135deg,#0b315c,#1f5d91);
  color:#ffffff;
}
.nav-item.active{
  background:linear-gradient(90deg,rgba(11,49,92,.15),rgba(31,93,145,.08));
  box-shadow:inset 0 0 0 1px rgba(11,49,92,.13);
}
.nav-item:hover{background:rgba(11,49,92,.08)}
.map-node.root{fill:#0b315c}
[data-theme="light"] h1.page{
  background:linear-gradient(115deg,#0a2748,#0b315c 55%,#376f9f);
  -webkit-background-clip:text;background-clip:text;
}
.sage-hero-card{
  background:linear-gradient(125deg,#061a32 0%,#0b315c 58%,#1f5d91 100%);
  color:#ffffff;
  box-shadow:0 21px 48px rgba(6,26,50,.25);
}
.sage-hero-card::before{
  background:radial-gradient(450px 300px at 79% 12%,rgba(159,199,232,.34),transparent 67%),radial-gradient(450px 320px at 16% 120%,rgba(255,255,255,.15),transparent 70%);
}
.sage-live,.sage-link-btn{color:#ffffff}
.sage-live span{background:#ffffff;box-shadow:0 0 0 5px rgba(255,255,255,.14)}
.sage-source,.sage-meta-row{color:#d5e4f2}
.sage-hero-description{color:#e5eff8}
.sage-play-btn{background:#ffffff;color:#0b315c}
.sage-play-btn span{background:#e3eef8;color:#0b315c}
.sage-hero-art-wrap::before{background:linear-gradient(135deg,rgba(159,199,232,.42),rgba(255,255,255,.25))}
.sage-lesson-orb{background:linear-gradient(135deg,#4f83b0,#ffffff 75%)}
.sage-art-glow{background:rgba(159,199,232,.28)}
.sage-progress-card,.sage-review-card{background:rgba(255,255,255,.78);box-shadow:0 8px 24px rgba(10,39,72,.06)}
.sage-review-card{background:linear-gradient(130deg,#e7f0f8,#ffffff);border-color:#c8d9e8}
[data-theme="dark"] .sage-review-card{background:linear-gradient(130deg,#193556,#102642);border-color:#426185}
.sage-continue-card img,.sage-mini-cover{background:linear-gradient(145deg,#dce9f5,#ffffff)}
.sage-journey-card{background:linear-gradient(120deg,#e5eef7,#ffffff 65%,#dce9f5);border-color:#ccd9e8}
.sage-journey-card p{color:#5a6d83}
.sage-journey-card button{background:#0b315c;color:#ffffff}
[data-theme="dark"] .sage-journey-card{background:linear-gradient(120deg,#102642,#193556);border-color:#426185}
[data-theme="dark"] .sage-journey-card p{color:#b9c8d8}
.lib-card:hover,.sage-continue-card:hover,.sage-empty-continue:hover{border-color:rgba(11,49,92,.34)}
.fab{box-shadow:0 12px 28px rgba(10,39,72,.2)}
.modal{box-shadow:0 25px 64px rgba(10,39,72,.25)}
.input:focus{box-shadow:0 0 0 3px rgba(11,49,92,.12)}
@media (max-width:760px){
  #sidebar{background:rgba(255,255,255,.97)}
  [data-theme="dark"] #sidebar{background:rgba(6,22,42,.97)}
}

/* ===== Sage motion system ===== */
:root{
  --motion-fast:140ms;
  --motion-base:220ms;
  --motion-slow:440ms;
  --motion-stagger:42ms;
  --ease-standard:cubic-bezier(.2,.72,.25,1);
  --ease-emphasized:cubic-bezier(.16,1,.3,1);
  --ease-exit:cubic-bezier(.4,0,1,1);
}
html{scroll-behavior:smooth}
body{overflow-x:hidden}
.hidden{display:none!important}
#view,#view.anim{animation:none}
#view[aria-busy="true"]{cursor:progress}
.theme-transition body,.theme-transition #sidebar,.theme-transition .card,.theme-transition .modal,
.theme-transition .input,.theme-transition .pill,.theme-transition .btn,.theme-transition .lib-card,
.theme-transition .sage-progress-card,.theme-transition .sage-review-card,.theme-transition .sage-journey-card,
.theme-transition .playerbar,.theme-transition .fc-face{
  transition-property:background-color,border-color,color,box-shadow;
  transition-duration:320ms;
  transition-timing-function:var(--ease-standard);
}

/* Calm the old decorative loops. Motion below is tied to state and feedback. */
.brand-ico,.streak-chip,.flame,.empty .big,.read-badge,.hero,.fab,.hero::before,.hero .blob2{
  animation:none;
}
.grid>*,.sage-home,.item-cover,.fc-card,.hl-btn{animation:none}

/* Progressive, viewport-aware content reveals. */
.motion-reveal{
  opacity:0;
  transform:translate3d(0,16px,0) scale(.992);
  transition:
    opacity var(--motion-slow) var(--ease-standard),
    transform var(--motion-slow) var(--ease-emphasized);
  transition-delay:calc(var(--motion-order,0) * var(--motion-stagger));
}
.motion-reveal.is-visible{opacity:1;transform:none}
.motion-image{
  opacity:0;
  transform:scale(1.018);
  transition:opacity 360ms var(--ease-standard),transform 560ms var(--ease-emphasized);
}
.motion-image.is-loaded{opacity:1;transform:none}

/* Immediate page hierarchy. */
h1.page,.page-sub,.item-head,.seg,.tabbar,.reader-top,.sage-home-top{
  animation:sageIntro var(--motion-slow) var(--ease-emphasized) both;
}
.page-sub{animation-delay:45ms}
.seg,.item-head,.reader-top{animation-delay:70ms}
.tabbar{animation-delay:100ms}
.sage-home-top{animation-delay:20ms}
.sage-hero-card{transition:transform 300ms var(--ease-standard),box-shadow 300ms var(--ease-standard)}
.sage-hero-card::before{animation:sageSoftLight 900ms var(--ease-standard) both}
.sage-lesson-cover{animation:sageCoverIn 720ms var(--ease-emphasized) 90ms both}
.sage-lesson-orb{animation:sageOrbIn 720ms var(--ease-emphasized) 90ms both}
.sage-art-glow{animation:sageGlowIn 900ms var(--ease-standard) 180ms both}
.sage-live span{animation:sageStatusPulse 2.4s ease-in-out infinite}
.sage-progress-track span,#view .pb-fill{
  transform-origin:left center;
  animation:sageProgressIn 760ms var(--ease-emphasized) 180ms both;
}
[dir="rtl"] .sage-progress-track span,[dir="rtl"] #view .pb-fill{transform-origin:right center}
.ring .fgc{animation:sageRingIn 900ms var(--ease-emphasized) 120ms both}

/* Navigation state is spatially stable, with a moving selection marker. */
.nav-item{
  isolation:isolate;
  animation:sageNavIn 360ms var(--ease-emphasized) both;
  animation-delay:calc(var(--motion-order,0) * 34ms);
  transition:
    color var(--motion-base) var(--ease-standard),
    background-color var(--motion-base) var(--ease-standard),
    transform var(--motion-base) var(--ease-emphasized);
}
.nav-item::before{
  content:'';
  position:absolute;
  inset:9px auto 9px 0;
  width:3px;
  border-radius:99px;
  background:var(--accent);
  transform:scaleY(0);
  opacity:0;
  transition:transform var(--motion-base) var(--ease-emphasized),opacity var(--motion-fast) linear;
}
[dir="rtl"] .nav-item::before{left:auto;right:0}
.nav-item.active::before{transform:scaleY(1);opacity:1}
.nav-item .ico{
  transition:transform var(--motion-base) var(--ease-emphasized),filter var(--motion-base) ease;
}
.nav-item.active .ico{animation:sageIconSettle 360ms var(--ease-emphasized)}
.nav-badge{animation:sageBadgeIn 320ms var(--ease-emphasized)}

/* Controls: quick feedback, restrained lift, strong keyboard focus. */
:where(.btn,.pill,.pin-key,.pb-btn,.fc-grade,.sage-create-btn,.sage-play-btn,.sage-link-btn,
  .sage-text-action,.sage-topic,.sage-journey-card button,.shelf-add,.profile-chip,.star){
  transition:
    transform var(--motion-fast) var(--ease-emphasized),
    box-shadow var(--motion-base) var(--ease-standard),
    border-color var(--motion-base) var(--ease-standard),
    background-color var(--motion-base) var(--ease-standard),
    color var(--motion-base) var(--ease-standard),
    opacity var(--motion-fast) linear;
  -webkit-tap-highlight-color:transparent;
}
:where(button,a,input,select,textarea):focus-visible{
  outline:3px solid color-mix(in srgb,var(--accent) 52%,transparent);
  outline-offset:3px;
}
:where(.btn,.pill,.pin-key,.pb-btn,.fc-grade,.sage-create-btn,.sage-play-btn,.sage-link-btn,
  .sage-text-action,.sage-topic,.sage-journey-card button,.shelf-add,.profile-chip):active{
  transform:translateY(1px) scale(.97);
  transition-duration:70ms;
}
.btn.is-busy{
  cursor:progress;
  box-shadow:none;
  transform:none;
}
.btn .spin{animation:sageSpin 850ms linear infinite}
.input,textarea.input,select.input{
  transition:border-color var(--motion-base) ease,box-shadow var(--motion-base) ease,background-color var(--motion-base) ease;
}
.input:focus{transform:none}

/* Cards and directional affordances. */
:where(.card,.lib-card,.shelf-card,.stat-tile,.scenario-card,.sage-continue-card,.sage-empty-continue,
  .sage-topic,.week-card,.pcard,.path-item,.hl-item){
  backface-visibility:hidden;
}
.sage-arrow,.sage-link-btn span,.sage-text-action span,.sage-review-card button span,
.sage-journey-card button span,.sage-topic b{
  display:inline-block;
  transition:transform var(--motion-base) var(--ease-emphasized);
}
.lib-coverimg,.item-cover,.modal-cover,.cover-wrap{
  transition:transform 420ms var(--ease-emphasized),box-shadow 300ms var(--ease-standard);
}
.cover-shimmer{
  animation:sageShimmer 1.35s linear infinite;
  will-change:background-position;
}
.shine{transition:background-position 650ms var(--ease-standard),opacity var(--motion-base) ease}
.in-lib{animation:sageOverlayIn 300ms var(--ease-standard) both}
.status-dot{animation:sageBadgeIn 320ms var(--ease-emphasized) both}
.tag{transition:background-color var(--motion-base) ease,color var(--motion-base) ease}

/* Segments and tabs change state without moving surrounding content. */
.seg button{position:relative;transition:color var(--motion-base) ease,background-color var(--motion-base) ease,box-shadow var(--motion-base) ease,transform var(--motion-fast) ease}
.seg button.on{animation:sageSegmentSettle 260ms var(--ease-emphasized)}
.tab{position:relative;border-bottom-color:transparent}
.tab::after{
  content:'';
  position:absolute;
  left:12px;right:12px;bottom:-1px;height:2px;border-radius:99px;
  background:var(--accent);
  transform:scaleX(0);
  opacity:0;
  transition:transform var(--motion-base) var(--ease-emphasized),opacity var(--motion-fast) linear;
}
.tab.on::after{transform:scaleX(1);opacity:1}
#tab-body>*,#lib-body>*{animation:sageContentSwap 360ms var(--ease-emphasized) both}

/* Modal, toast, gate, player, and contextual feedback. */
.modal-back{animation:sageBackdropIn var(--motion-base) ease-out both}
.modal{animation:sageDialogIn 320ms var(--ease-emphasized) both;transform-origin:center}
.modal>*{animation:sageContentSwap 330ms var(--ease-emphasized) both}
.modal>*:nth-child(2){animation-delay:35ms}
.modal>*:nth-child(3){animation-delay:60ms}
.modal>*:nth-child(n+4){animation-delay:80ms}
.modal-back.is-closing{animation:sageBackdropOut 220ms var(--ease-exit) both}
.modal-back.is-closing .modal{animation:sageDialogOut 190ms var(--ease-exit) both}
.toast{animation:sageToastIn 340ms var(--ease-emphasized) both}
.toast.is-leaving{animation:sageToastOut 220ms var(--ease-exit) both}
[dir="rtl"] .toast{animation-name:sageToastInRtl}
[dir="rtl"] .toast.is-leaving{animation-name:sageToastOutRtl}
.gate{
  opacity:1;
  visibility:visible;
  transition:opacity 260ms var(--ease-standard),visibility 0s linear 0s;
}
.gate.hidden{
  display:flex!important;
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transition:opacity 220ms var(--ease-exit),visibility 0s linear 220ms;
}
.gate-inner{animation:sageGateIn 520ms var(--ease-emphasized) both}
.gate.hidden .gate-inner{transform:translateY(12px) scale(.99)}
.profile-grid .pcard{animation:sageCardIn 420ms var(--ease-emphasized) both;animation-delay:calc(var(--motion-order,0) * 45ms)}
.pin-dot.on{animation:sagePinSet 230ms var(--ease-emphasized)}
.playerbar{
  animation:none;
  opacity:1;
  visibility:visible;
  transform:translateX(-50%) translateY(0);
  transition:opacity 240ms var(--ease-standard),transform 300ms var(--ease-emphasized),visibility 0s linear;
}
.playerbar.hidden{
  display:flex!important;
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transform:translateX(-50%) translateY(24px);
  transition:opacity 180ms var(--ease-exit),transform 220ms var(--ease-exit),visibility 0s linear 220ms;
}
.hl-btn{
  display:block;
  animation:none;
  opacity:1;
  transform:translateY(0) scale(1);
  transition:opacity var(--motion-fast) ease,transform var(--motion-base) var(--ease-emphasized);
}
.hl-btn.hidden{
  display:block!important;
  opacity:0;
  transform:translateY(5px) scale(.94);
  pointer-events:none;
}
.skel{animation:sageThinking 1.1s ease-in-out infinite}
.msg{animation:sageMessageIn 300ms var(--ease-emphasized) both}

/* Flashcards use a genuine spatial flip and reveal answer controls afterward. */
.fc-stage{perspective:1400px}
.fc-card{
  display:block;
  position:relative;
  width:100%;
  padding:0;
  border:0;
  background:transparent;
  box-shadow:none;
  overflow:visible;
  transform:none;
  perspective:1400px;
  color:inherit;
  text-align:center;
  font:inherit;
}
.fc-card:hover{transform:none;border-color:transparent}
.fc-card-inner{
  display:block;
  position:relative;
  width:100%;
  min-height:270px;
  transform-style:preserve-3d;
  transition:transform 560ms var(--ease-emphasized);
}
.fc-card.is-flipped .fc-card-inner{transform:rotateY(180deg)}
.fc-face{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:34px 30px;
  border:1px solid var(--line);
  border-radius:22px;
  background:linear-gradient(160deg,var(--panel),var(--panel2));
  box-shadow:var(--shadow);
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
}
.fc-back-face{transform:rotateY(180deg)}
.fc-back-face>span,.fc-back-prompt,.fc-back{display:block}
.fc-back-prompt{margin-bottom:10px}
.fc-show-wrap{
  text-align:center;
  margin-top:18px;
  max-height:60px;
  opacity:1;
  transform:translateY(0);
  transition:opacity var(--motion-base) ease,transform var(--motion-base) var(--ease-emphasized),max-height var(--motion-base) ease,margin var(--motion-base) ease;
}
.fc-show-wrap.is-hidden{max-height:0;margin-top:0;opacity:0;transform:translateY(-8px);pointer-events:none;overflow:hidden}
.fc-grades{
  max-height:0;
  margin-top:0;
  opacity:0;
  transform:translateY(10px);
  overflow:hidden;
  pointer-events:none;
  transition:max-height 360ms ease,margin var(--motion-base) ease,opacity var(--motion-base) ease 120ms,transform 320ms var(--ease-emphasized) 100ms;
}
.fc-grades.is-visible{max-height:110px;margin-top:18px;opacity:1;transform:none;pointer-events:auto}
.fc-grade{opacity:0;transform:translateY(8px)}
.fc-grades.is-visible .fc-grade{
  opacity:1;
  transform:none;
  transition-delay:calc(var(--motion-order,0) * 38ms);
}

/* Reading, maps, progress, and completion feedback. */
.reader-page.turn{animation:sagePageFade 280ms var(--ease-standard)}
.reader-page.turn-next{animation:sagePageNext 330ms var(--ease-emphasized)}
.reader-page.turn-prev{animation:sagePagePrev 330ms var(--ease-emphasized)}
.reader-slider{transition:filter var(--motion-base) ease}
.reader-slider:focus-visible{filter:drop-shadow(0 0 6px color-mix(in srgb,var(--accent) 45%,transparent))}
.bar{
  transform-origin:center bottom;
  animation:sageBarIn 720ms var(--ease-emphasized) both;
  animation-delay:calc(var(--motion-order,0) * 35ms);
}
.map-link{animation:sageMapLine 540ms var(--ease-standard) both;animation-delay:calc(var(--motion-order,0) * 55ms)}
.map-node,.map-txt{
  transform-box:fill-box;
  transform-origin:center;
  animation:sageMapNode 420ms var(--ease-emphasized) both;
  animation-delay:calc(var(--motion-order,0) * 55ms);
}
.pod-line.playing{animation:sageNowPlaying 420ms var(--ease-emphasized) both}
.path-check.on{animation:sageCheckSet 360ms var(--ease-emphasized)}
.star.on{animation:sageStarSet 280ms var(--ease-emphasized)}
.confetti{will-change:transform,opacity}

@media (hover:hover){
  .nav-item:hover .ico{transform:scale(1.08)}
  .sage-hero-card:hover{transform:translateY(-2px);box-shadow:0 26px 58px rgba(6,26,50,.29)}
  .sage-continue-card:hover .sage-arrow,.sage-empty-continue:hover .sage-arrow,
  .sage-link-btn:hover span,.sage-text-action:hover span,.sage-review-card button:hover span,
  .sage-journey-card button:hover span,.sage-topic:hover b{transform:translateX(4px)}
  [dir="rtl"] .sage-continue-card:hover .sage-arrow,[dir="rtl"] .sage-empty-continue:hover .sage-arrow,
  [dir="rtl"] .sage-link-btn:hover span,[dir="rtl"] .sage-text-action:hover span,
  [dir="rtl"] .sage-review-card button:hover span,[dir="rtl"] .sage-journey-card button:hover span,
  [dir="rtl"] .sage-topic:hover b{transform:translateX(-4px)}
  .sage-topic:hover>span{animation:sageIconSettle 360ms var(--ease-emphasized)}
  .lib-card:hover .lib-coverimg,.shelf-card:hover .cover-wrap{transform:scale(1.025)}
  .fc-face:hover{border-color:var(--accent);box-shadow:var(--shadow),var(--glow)}
}

@media (hover:none){
  .nav-item:hover,.btn:hover,.pill:hover,.lib-card:hover,.shelf-card:hover,.scenario-card:hover,
  .stat-tile:hover,.sage-continue-card:hover,.sage-empty-continue:hover,.sage-topic:hover,.pcard:hover{
    transform:none;
  }
}

@media (max-width:760px){
  :root{--motion-slow:360ms;--motion-stagger:28ms}
  .motion-reveal{transform:translate3d(0,10px,0)}
  .nav-item::before{
    inset:auto 22% 0;
    width:auto;height:3px;
    transform:scaleX(0);
  }
  [dir="rtl"] .nav-item::before{left:22%;right:22%}
  .nav-item.active::before{transform:scaleX(1)}
  .modal{transform-origin:center bottom}
  .fc-card,.fc-card-inner,.fc-face{min-height:250px}
  .playerbar.hidden{transform:translateX(-50%) translateY(16px)}
}

@media (max-width:520px){
  .item-head{
    display:grid;
    grid-template-columns:76px minmax(0,1fr);
    align-items:start;
  }
  .item-head>.grow{min-width:0}
  .item-head>.row{
    grid-column:1 / -1;
    width:100%;
    padding-top:7px;
  }
  .path-item{
    display:grid;
    grid-template-columns:22px minmax(0,1fr);
  }
  .path-item>.btn{
    grid-column:2;
    justify-self:start;
  }
}

@media (max-width:420px){
  #pb-sleep{display:none}
  .playerbar{gap:5px;padding:8px 9px}
  .pb-btn{width:36px;height:36px}
  .pb-btn.sm{width:28px;height:28px}
  .pb-sel{max-width:64px;padding-inline:4px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .motion-reveal,.motion-image{
    opacity:1!important;
    transform:none!important;
  }
  .fc-card-inner{transition:none!important}
  .fc-card.is-flipped .fc-card-inner{transform:rotateY(180deg)!important}
  .gate.hidden,.playerbar.hidden{transition:none!important}
}

@keyframes sageIntro{
  from{opacity:0;transform:translate3d(0,12px,0)}
  to{opacity:1;transform:none}
}
@keyframes sageContentSwap{
  from{opacity:0;transform:translate3d(0,8px,0)}
  to{opacity:1;transform:none}
}
@keyframes sageCardIn{
  from{opacity:0;transform:translate3d(0,12px,0) scale(.985)}
  to{opacity:1;transform:none}
}
@keyframes sageSoftLight{from{opacity:0}to{opacity:1}}
@keyframes sageCoverIn{
  from{opacity:0;transform:translate3d(34px,18px,0) rotate(12deg) scale(.9)}
  to{opacity:1}
}
@keyframes sageOrbIn{
  from{opacity:0;transform:translate3d(34px,18px,0) rotate(18deg) scale(.82)}
  to{opacity:1}
}
@keyframes sageGlowIn{from{opacity:0;transform:scale(.7)}to{opacity:1;transform:none}}
@keyframes sageStatusPulse{
  0%,100%{box-shadow:0 0 0 4px rgba(255,255,255,.12)}
  50%{box-shadow:0 0 0 8px rgba(255,255,255,0)}
}
@keyframes sageProgressIn{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@keyframes sageRingIn{from{stroke-dashoffset:164}to{}}
@keyframes sageIconSettle{
  0%{transform:scale(.88)}
  65%{transform:scale(1.12)}
  100%{transform:scale(1)}
}
@keyframes sageNavIn{
  from{opacity:0;transform:translateX(-8px)}
  to{opacity:1;transform:none}
}
[dir="rtl"] .nav-item{animation-name:sageNavInRtl}
@keyframes sageNavInRtl{
  from{opacity:0;transform:translateX(8px)}
  to{opacity:1;transform:none}
}
@keyframes sageBadgeIn{
  0%{opacity:0;transform:scale(.7)}
  70%{transform:scale(1.08)}
  100%{opacity:1;transform:scale(1)}
}
@keyframes sageSegmentSettle{
  0%{transform:scale(.96)}
  100%{transform:none}
}
@keyframes sageSpin{to{transform:rotate(360deg)}}
@keyframes sageShimmer{from{background-position:120% 0}to{background-position:-120% 0}}
@keyframes sageOverlayIn{from{opacity:0;backdrop-filter:blur(0)}to{opacity:1;backdrop-filter:blur(1px)}}
@keyframes sageBackdropIn{from{opacity:0;backdrop-filter:blur(0)}to{opacity:1;backdrop-filter:blur(5px)}}
@keyframes sageBackdropOut{to{opacity:0;backdrop-filter:blur(0)}}
@keyframes sageDialogIn{
  from{opacity:0;transform:translate3d(0,16px,0) scale(.965)}
  to{opacity:1;transform:none}
}
@keyframes sageDialogOut{to{opacity:0;transform:translate3d(0,10px,0) scale(.975)}}
@keyframes sageToastIn{from{opacity:0;transform:translate3d(34px,0,0) scale(.96)}to{opacity:1;transform:none}}
@keyframes sageToastOut{to{opacity:0;transform:translate3d(28px,0,0) scale(.96)}}
@keyframes sageToastInRtl{from{opacity:0;transform:translate3d(-34px,0,0) scale(.96)}to{opacity:1;transform:none}}
@keyframes sageToastOutRtl{to{opacity:0;transform:translate3d(-28px,0,0) scale(.96)}}
@keyframes sageGateIn{from{opacity:0;transform:translateY(16px) scale(.985)}to{opacity:1;transform:none}}
@keyframes sagePinSet{
  0%{transform:scale(.65)}
  70%{transform:scale(1.28)}
  100%{transform:scale(1.15)}
}
@keyframes sageThinking{0%,100%{opacity:.45}50%{opacity:1}}
@keyframes sageMessageIn{from{opacity:0;transform:translateY(7px) scale(.985)}to{opacity:1;transform:none}}
@keyframes sagePageFade{from{opacity:.3}to{opacity:1}}
@keyframes sagePageNext{from{opacity:.25;transform:translate3d(18px,0,0)}to{opacity:1;transform:none}}
@keyframes sagePagePrev{from{opacity:.25;transform:translate3d(-18px,0,0)}to{opacity:1;transform:none}}
@keyframes sageBarIn{from{opacity:.35;transform:scaleY(0)}to{opacity:1;transform:scaleY(1)}}
@keyframes sageMapLine{from{opacity:0;transform:translateX(-8px)}to{opacity:1;transform:none}}
@keyframes sageMapNode{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:none}}
@keyframes sageNowPlaying{from{opacity:.7;transform:translateX(-6px)}to{opacity:1;transform:none}}
@keyframes sageCheckSet{
  0%{transform:scale(.65)}
  65%{transform:scale(1.18)}
  100%{transform:scale(1)}
}
@keyframes sageStarSet{
  0%{transform:scale(.7) rotate(-10deg)}
  65%{transform:scale(1.28) rotate(4deg)}
  100%{transform:scale(1)}
}

.sage-public-link,
.sage-public-link code{
  display:inline-block;
  max-width:100%;
  overflow-wrap:anywhere;
  white-space:normal;
  word-break:break-word;
}

/* ===== Sage Learning OS v2 ===== */
:root{
  --navy-950:#06172c;
  --navy-900:#0a2748;
  --navy-800:#0b315c;
  --navy-700:#174b7a;
  --signal:#64c7e7;
  --signal-soft:#e6f6fb;
  --paper:#ffffff;
  --canvas:#f4f7fb;
  --ease-spring:cubic-bezier(.22,1,.36,1);
}
body{
  background:var(--canvas);
  background-image:
    radial-gradient(900px 420px at 84% -10%,rgba(100,199,231,.16),transparent 62%),
    linear-gradient(180deg,#f8fbfe 0%,#f4f7fb 42%,#f1f5fa 100%);
}
[data-theme="dark"] body{
  background:#06162a;
  background-image:radial-gradient(780px 420px at 82% -12%,rgba(100,199,231,.13),transparent 66%);
}
svg.lucide{width:1.05em;height:1.05em;stroke-width:2;flex:0 0 auto}
#sidebar{
  width:256px;
  padding:25px 16px 18px;
  background:rgba(255,255,255,.92);
  box-shadow:14px 0 40px rgba(10,39,72,.035);
}
.brand{padding:2px 10px 27px;gap:11px}
.brand-ico{width:38px;height:38px;border-radius:13px}
.brand-ico svg{width:19px;height:19px}
.brand>span:last-child{display:flex;flex-direction:column;line-height:1}
.brand-name{font-size:22px;letter-spacing:-.8px}
.brand small{font-size:8px;letter-spacing:1.55px;color:var(--faint);margin-top:5px;font-weight:850}
#nav{gap:3px}
.nav-group{
  color:var(--faint);
  font-size:9px;
  letter-spacing:1.3px;
  text-transform:uppercase;
  font-weight:850;
  padding:17px 12px 5px;
}
.nav-group:first-child{padding-top:0}
.nav-item{min-height:44px;padding:10px 12px;border-radius:12px}
.nav-item .ico{width:22px;height:22px;display:grid;place-items:center}
.nav-item .ico svg{width:19px;height:19px}
.nav-item.active{color:var(--navy-800);background:#edf4fa;box-shadow:none}
[data-theme="dark"] .nav-item.active{color:#fff;background:rgba(159,199,232,.13)}
.nav-item.active::before{inset:10px auto 10px 0;width:3px;background:var(--signal)}
.mobile-more{display:none}
.side-foot{padding:14px 3px 0}
#view{
  max-width:1440px;
  width:100%;
  padding:38px clamp(28px,4vw,66px) 150px;
}
.sage-overline,.sage-section-kicker{color:var(--navy-700)}
[data-theme="dark"] .sage-overline,[data-theme="dark"] .sage-section-kicker{color:var(--signal)}
.btn{min-height:42px;border-radius:11px}
.btn.primary{
  background:var(--navy-800);
  border-color:var(--navy-800);
  box-shadow:0 9px 20px rgba(11,49,92,.16);
}
.btn.primary:hover{filter:none;background:var(--navy-700)}
.icon-btn{width:42px;padding:0;justify-content:center}

/* Daily command center */
.os-home{max-width:1210px}
.os-home-top{margin-bottom:24px;align-items:center}
.os-home-top h1{font-size:35px}
.sage-create-btn{display:inline-flex;align-items:center;gap:8px;background:var(--navy-800);color:#fff;min-height:44px}
.os-command{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(290px,.8fr);gap:15px}
.os-focus-card{
  min-height:330px;position:relative;overflow:hidden;border-radius:24px;color:#fff;
  background:linear-gradient(128deg,var(--navy-950),var(--navy-800) 64%,#1d5f8f);
  box-shadow:0 24px 52px rgba(6,23,44,.22);
  isolation:isolate;
}
.os-focus-card::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(480px 280px at 88% 14%,rgba(100,199,231,.34),transparent 68%);
  animation:osLightIn 800ms var(--ease-standard) both;
}
.os-focus-copy{position:relative;z-index:2;width:64%;min-height:330px;padding:34px 0 31px 36px;display:flex;flex-direction:column;align-items:flex-start}
[dir="rtl"] .os-focus-copy{padding:34px 36px 31px 0}
.os-focus-card h2{font-size:clamp(25px,2.35vw,34px);line-height:1.08;letter-spacing:-1px;margin:0;max-width:570px}
.os-focus-card .sage-source{margin:26px 0 7px;color:#bcd8ed}
.os-focus-card .sage-hero-description{margin:12px 0 18px;color:#dceaf5}
.os-focus-card .sage-hero-actions{margin-top:auto}
.os-focus-card .sage-play-btn{min-height:44px;padding:0 16px;background:#fff;color:var(--navy-800);display:inline-flex;gap:8px}
.os-focus-card .sage-play-btn svg{width:16px;height:16px}
.os-focus-card .sage-link-btn{display:inline-flex;align-items:center;gap:6px;color:#fff}
.os-focus-art{position:absolute;right:0;top:0;width:38%;height:100%;display:grid;place-items:center;overflow:hidden}
[dir="rtl"] .os-focus-art{right:auto;left:0}
.os-focus-art::before{
  content:'';position:absolute;width:255px;height:255px;border-radius:50%;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);
  box-shadow:0 0 0 28px rgba(100,199,231,.06),0 0 0 64px rgba(100,199,231,.03);
}
.os-focus-art .sage-lesson-cover{
  position:relative;width:145px;height:208px;object-fit:cover;border-radius:9px;
  box-shadow:18px 22px 32px rgba(0,0,0,.32);transform:rotate(5deg);z-index:1;
}
.sage-lesson-mark{position:relative;width:112px;height:112px;z-index:1;filter:drop-shadow(0 18px 24px rgba(0,0,0,.22));animation:osMarkIn 680ms var(--ease-spring) both}
.os-plan-card{
  border:1px solid var(--line);border-radius:24px;padding:23px;background:rgba(255,255,255,.88);
  box-shadow:0 12px 34px rgba(10,39,72,.06);display:flex;flex-direction:column;min-width:0;
}
[data-theme="dark"] .os-plan-card{background:var(--panel)}
.os-plan-head{display:flex;align-items:center;gap:10px}
.os-plan-head .sage-section-kicker{margin:0}
.os-plan-head strong{font-size:16px}
.os-plan-icon{width:36px;height:36px;border-radius:11px;background:var(--signal-soft);color:var(--navy-700);display:grid;place-items:center}
.os-percent{margin-inline-start:auto;font-size:13px;font-weight:850;color:var(--navy-700)}
.os-ring-row{display:flex;align-items:center;gap:15px;margin:24px 0 18px}
.os-ring{
  --ring-progress:calc(var(--progress) * 3.6deg);
  width:76px;height:76px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1;
  background:radial-gradient(circle at center,var(--paper) 57%,transparent 59%),conic-gradient(var(--signal) var(--ring-progress),#dce6ef 0);
}
[data-theme="dark"] .os-ring{background:radial-gradient(circle at center,var(--panel) 57%,transparent 59%),conic-gradient(var(--signal) var(--ring-progress),var(--panel2) 0)}
.os-ring span{font-size:22px;font-weight:850}.os-ring small{font-size:9px;color:var(--dim);margin-top:4px}
.os-ring-row>div:last-child{display:flex;flex-direction:column;gap:4px}.os-ring-row small{color:var(--dim)}
.os-plan-next{margin-top:auto;padding-top:17px;border-top:1px solid var(--line);display:grid;grid-template-columns:28px minmax(0,1fr) 30px;gap:9px;align-items:center}
.os-plan-next>svg{color:var(--navy-700)}
.os-plan-next span{display:flex;flex-direction:column;min-width:0}.os-plan-next small{font-size:9px;color:var(--dim);text-transform:uppercase;letter-spacing:.7px}.os-plan-next strong{font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.os-plan-next button{width:30px;height:30px;border-radius:9px;background:var(--panel2);display:grid;place-items:center}
.os-action-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:15px}
.os-action{
  min-height:94px;padding:16px;border:1px solid var(--line);border-radius:17px;background:var(--panel);
  display:grid;grid-template-columns:36px minmax(0,1fr) 20px;grid-template-rows:auto auto;text-align:left;column-gap:11px;
  box-shadow:0 8px 22px rgba(10,39,72,.035);transition:transform 220ms var(--ease-spring),box-shadow 220ms ease,border-color 220ms ease;
}
[dir="rtl"] .os-action{text-align:right}
.os-action>span{grid-row:1/3;width:36px;height:36px;border-radius:11px;background:#eef5fa;color:var(--navy-700);display:grid;place-items:center}
[data-theme="dark"] .os-action>span{background:var(--panel2);color:var(--signal)}
.os-action strong{font-size:13px}.os-action small{color:var(--dim);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.os-action>svg{grid-column:3;grid-row:1/3;align-self:center;color:var(--faint)}
.os-content-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(330px,.75fr);gap:32px;margin-top:37px}
.os-content-grid .sage-section-head{align-items:flex-end}
.os-content-grid h3{font-size:22px}
.os-library-list{display:flex;flex-direction:column;gap:8px}
.os-library-row,.os-empty-row{
  min-height:75px;padding:8px 10px 8px 8px;border:1px solid var(--line);border-radius:14px;background:var(--panel);
  display:flex;align-items:center;gap:12px;text-align:left;transition:transform 220ms var(--ease-spring),box-shadow 220ms ease,border-color 220ms ease;
}
[dir="rtl"] .os-library-row,[dir="rtl"] .os-empty-row{text-align:right}
.os-library-row img,.os-cover-fallback{width:43px;height:57px;border-radius:7px;object-fit:cover;background:var(--panel2);display:grid;place-items:center;color:var(--navy-700)}
.os-cover-fallback svg{width:19px;height:19px}
.os-library-row .sage-continue-copy strong{font-size:13px}
.os-row-action{margin-inline-start:auto;width:31px;height:31px;border-radius:9px;background:var(--panel2);display:grid;place-items:center;color:var(--navy-700)}
.os-empty-row>span:first-child{width:43px;height:43px;border-radius:12px;background:var(--signal-soft);display:grid;place-items:center}
.os-empty-row>span:nth-child(2){display:flex;flex-direction:column;min-width:0}.os-empty-row small{color:var(--dim)}
.os-empty-row>svg{margin-inline-start:auto}
.os-topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.os-topic{min-height:61px;padding:10px;border:1px solid var(--line);border-radius:14px;background:var(--panel);display:grid;grid-template-columns:32px minmax(0,1fr) 17px;gap:9px;align-items:center;text-align:left}
[dir="rtl"] .os-topic{text-align:right}
.os-topic>span{width:32px;height:32px;border-radius:10px;background:var(--signal-soft);color:var(--navy-700);display:grid;place-items:center}
.os-topic strong{font-size:11px;line-height:1.2}.os-topic>svg{color:var(--faint)}
[data-theme="dark"] .os-topic>span,.os-empty-row>span:first-child{background:var(--panel2);color:var(--signal)}

/* Library */
.os-library{max-width:1210px;margin:0 auto}
.os-page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px}
.os-page-head h1.page{font-size:38px;line-height:1.05;margin-bottom:7px;background:none;color:var(--text);-webkit-text-fill-color:initial}
.os-page-head .page-sub{margin:0}
.os-add-source{align-self:center}
.os-library-seg{margin-bottom:22px}
.os-library-seg button{display:flex;align-items:center;gap:7px;min-height:39px}
.os-library-continue{
  width:100%;min-height:88px;border-radius:18px;padding:14px 17px;border:1px solid #c9dcea;
  background:linear-gradient(100deg,#edf6fb,#fff 62%);display:grid;grid-template-columns:42px minmax(0,1fr) auto;gap:13px;align-items:center;text-align:left;margin-bottom:14px;
}
[dir="rtl"] .os-library-continue{text-align:right}
[data-theme="dark"] .os-library-continue{background:linear-gradient(100deg,var(--panel2),var(--panel));border-color:var(--line)}
.os-continue-symbol{width:42px;height:42px;border-radius:12px;background:#fff;color:var(--navy-700);display:grid;place-items:center;box-shadow:0 7px 16px rgba(10,39,72,.08)}
.os-library-continue>span:nth-child(2){display:flex;flex-direction:column;min-width:0}.os-library-continue small{font-size:9px;text-transform:uppercase;letter-spacing:.8px;color:var(--navy-700);font-weight:850}.os-library-continue strong{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.os-library-continue em{font-size:11px;color:var(--dim);font-style:normal}
.os-continue-cta{display:flex;align-items:center;gap:7px;color:var(--navy-700);font-size:12px;font-weight:800}
.os-library-toolbar{display:flex;gap:10px;margin-bottom:12px}
.os-search{position:relative;display:flex;align-items:center;flex:1;max-width:540px}
.os-search>svg{position:absolute;left:14px;color:var(--faint);z-index:1}
[dir="rtl"] .os-search>svg{left:auto;right:14px}
.os-search .input{width:100%;padding-inline-start:42px;min-height:46px}
.os-filter-toggle{margin-inline-start:auto}
.os-filter-rail{display:flex;gap:7px;overflow-x:auto;padding:2px 0 12px;scrollbar-width:none}
.os-filter-rail::-webkit-scrollbar{display:none}
.os-filter-rail .pill{white-space:nowrap;background:transparent}
.os-filter-rail .pill.on{background:var(--navy-800);border-color:var(--navy-800);color:#fff}
.os-library-count{display:flex;justify-content:space-between;align-items:center;margin:11px 0 12px}
.os-library-count span{font-size:11px;color:var(--dim)}
.os-library-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:13px}
.os-library-grid .lib-card{min-height:276px;padding:12px;text-align:left;border-radius:17px;position:relative;overflow:hidden}
[dir="rtl"] .os-library-grid .lib-card{text-align:right}
.os-library-grid .lib-coverimg{height:165px;border-radius:10px}
.os-library-grid .lib-emoji{height:165px;border-radius:10px;background:linear-gradient(145deg,#e7eff7,#f8fbfd);display:grid;place-items:center;color:var(--navy-700)}
.os-library-grid .lib-emoji svg{width:34px;height:34px}
.os-library-grid .status-dot{top:21px;left:21px;right:auto;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);color:var(--navy-800)}
[dir="rtl"] .os-library-grid .status-dot{left:auto;right:21px}
.os-library-grid .lib-title{margin-top:2px;padding-inline-end:28px}
.os-library-grid .lib-tags{margin-top:7px}
.os-library-grid .tag{background:var(--panel2);border:0}
.os-card-arrow{position:absolute;right:13px;bottom:16px;color:var(--faint)}
[dir="rtl"] .os-card-arrow{right:auto;left:13px}
.os-empty-library .big{color:var(--navy-700)}
.os-library .fab{display:none}

/* Book studio */
.book-studio{max-width:1180px;margin:0 auto}
.os-back-link{display:inline-flex;align-items:center;gap:7px;color:var(--dim);text-decoration:none;font-size:12px;font-weight:750;margin-bottom:15px}
.studio-head{
  display:grid;grid-template-columns:102px minmax(0,1fr) auto;gap:21px;align-items:center;
  padding:21px;border:1px solid var(--line);border-radius:22px;background:var(--panel);box-shadow:0 12px 32px rgba(10,39,72,.055);
}
.studio-cover-wrap{position:relative;width:102px}
.studio-cover-wrap .item-cover,.studio-cover-wrap .item-emoji{width:88px;height:124px;border-radius:9px;margin:0;box-shadow:10px 14px 22px rgba(10,39,72,.18)}
.studio-cover-wrap .item-emoji{display:grid;place-items:center;background:linear-gradient(145deg,#dbe9f5,#fff);color:var(--navy-700)}
.studio-cover-wrap .item-emoji svg{width:30px;height:30px}
.studio-status{position:absolute;left:7px;bottom:-8px;padding:4px 8px;border-radius:99px;background:#fff;border:1px solid var(--line);font-size:8px;font-weight:850;text-transform:uppercase;letter-spacing:.6px;box-shadow:0 4px 10px rgba(10,39,72,.1)}
.studio-status.status-new,.studio-status.status-summarized,.studio-status.status-done{background:#fff;color:var(--navy-800)}
[dir="rtl"] .studio-status{left:auto;right:7px}
.studio-copy{min-width:0}.studio-copy .sage-overline{margin-bottom:3px}
.studio-copy h1.page{font-size:clamp(25px,3vw,38px);line-height:1.08;margin:0;background:none;color:var(--text);-webkit-text-fill-color:initial;overflow-wrap:anywhere}
.studio-byline{color:var(--dim);font-size:13px;margin-top:6px}
.studio-oneliner{color:var(--dim);font-size:12px;max-width:680px;margin-top:7px;line-height:1.45}
.studio-stats{display:flex;gap:14px;flex-wrap:wrap;margin-top:13px;color:var(--dim);font-size:10px;font-weight:700}
.studio-stats span{display:flex;align-items:center;gap:5px}.studio-stats svg{color:var(--navy-700)}
.studio-actions{display:flex;align-items:center;gap:8px}
.studio-modebar{margin:18px 0 0;gap:7px;border-bottom:0;padding:5px;background:#e9f0f7;border-radius:15px;overflow:visible}
[data-theme="dark"] .studio-modebar{background:var(--panel2)}
.studio-modebar .tab{
  flex:1;min-height:51px;border:0;border-radius:11px;padding:8px 13px;display:flex;align-items:center;justify-content:center;gap:8px;color:var(--dim);font-weight:780;
}
.studio-modebar .tab.on{background:var(--panel);color:var(--navy-800);box-shadow:0 5px 14px rgba(10,39,72,.08)}
[data-theme="dark"] .studio-modebar .tab.on{color:#fff}
.studio-modebar .tab::after{display:none}
.studio-modebar .tab b{font-size:9px;min-width:19px;height:19px;border-radius:99px;background:var(--panel2);display:grid;place-items:center}
.studio-canvas{margin-top:13px;border:1px solid var(--line);border-radius:22px;background:var(--panel);padding:clamp(18px,3vw,34px);min-height:420px;box-shadow:0 10px 30px rgba(10,39,72,.045)}
.studio-toolbar{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding-bottom:21px;border-bottom:1px solid var(--line)}
.studio-toolbar h2{font-size:25px;letter-spacing:-.6px;margin:0}.studio-toolbar .sage-overline{margin-bottom:3px}
.studio-toolbar-actions{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap}
.studio-tuning{margin:14px 0;border:1px solid var(--line);border-radius:14px;background:var(--canvas)}
[data-theme="dark"] .studio-tuning{background:var(--bg)}
.studio-tuning summary{list-style:none;min-height:48px;padding:11px 14px;display:grid;grid-template-columns:20px auto minmax(0,1fr) 18px;gap:8px;align-items:center;cursor:pointer;font-weight:780;font-size:12px}
.studio-tuning summary::-webkit-details-marker{display:none}
.studio-tuning summary small{justify-self:end;color:var(--dim);font-weight:600}
.studio-tuning summary>svg:last-child{transition:transform 220ms var(--ease-spring)}
.studio-tuning[open] summary>svg:last-child{transform:rotate(180deg)}
.tuning-grid{padding:14px;border-top:1px solid var(--line);display:grid;gap:13px}
.tuning-grid label{font-size:9px;text-transform:uppercase;letter-spacing:.8px;font-weight:850;color:var(--dim)}
.option-rail{display:flex;flex-wrap:wrap;gap:7px;margin-top:6px}
.studio-reading{max-width:760px;margin:26px auto 0}.studio-reading .md{font-size:16px;line-height:1.78}.studio-timestamp{padding-top:20px;border-top:1px solid var(--line)}
.studio-empty{min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center}.studio-empty .big{color:var(--navy-700)}.studio-empty small{color:var(--dim);margin-top:4px}
.source-picker h2,.studio-tool-picker h2,.studio-options h2,.mobile-more-sheet h2{font-size:27px;letter-spacing:-.7px;margin:3px 0 7px}
.source-picker-grid{display:grid;gap:8px;margin-top:18px}
.source-picker-grid>button{
  min-height:72px;padding:11px;border:1px solid var(--line);border-radius:14px;background:var(--panel);
  display:grid;grid-template-columns:40px minmax(0,1fr) 18px;grid-template-rows:auto auto;gap:1px 11px;align-items:center;text-align:left;
}
[dir="rtl"] .source-picker-grid>button{text-align:right}
.source-picker-grid>button>span{grid-row:1/3;width:40px;height:40px;border-radius:11px;background:var(--signal-soft);color:var(--navy-700);display:grid;place-items:center}
.source-picker-grid>button>strong{font-size:13px}.source-picker-grid>button>small{font-size:10px;color:var(--dim)}
.source-picker-grid>button>svg{grid-column:3;grid-row:1/3;color:var(--faint)}
.source-picker-grid>button.active{border-color:var(--signal);background:#f1f9fc}
[data-theme="dark"] .source-picker-grid>button.active{background:var(--panel2)}
.option-rating{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 0;margin-top:12px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.option-rating .stars{display:flex}.option-rating .star{width:36px;height:36px;display:grid;place-items:center;color:var(--faint)}.option-rating .star.on{color:#c09132}.option-rating .star svg{fill:currentColor}
.option-actions{display:flex;justify-content:space-between;gap:10px;margin-top:16px}
.more-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px;margin-top:17px}
.more-link{min-height:92px;padding:13px;border:1px solid var(--line);border-radius:15px;background:var(--panel);display:flex;flex-direction:column;gap:7px;align-items:flex-start}
.more-link>span{width:34px;height:34px;border-radius:10px;background:var(--signal-soft);color:var(--navy-700);display:grid;place-items:center}.more-link.active{border-color:var(--signal);background:#f2f9fc}
.sheet-handle{display:none}

/* Meaningful feedback: no endless decoration. */
.os-focus-card,.os-plan-card,.os-action,.os-library-row,.os-topic,.studio-head,.studio-canvas{animation:osRise 520ms var(--ease-spring) both}
.os-plan-card{animation-delay:70ms}.os-action:nth-child(1){animation-delay:90ms}.os-action:nth-child(2){animation-delay:125ms}.os-action:nth-child(3){animation-delay:160ms}
.os-library-row{animation-delay:calc(var(--motion-order,0) * 40ms)}
.os-ring{animation:osRingIn 760ms var(--ease-spring) 150ms both}
@media (hover:hover){
  .os-action:hover,.os-library-row:hover,.os-topic:hover,.os-library-continue:hover,.source-picker-grid>button:hover,.more-link:hover{
    transform:translateY(-2px);border-color:#b5d4e5;box-shadow:0 12px 24px rgba(10,39,72,.08);
  }
  .os-action:hover>svg,.os-library-row:hover .os-row-action svg,.os-topic:hover>svg{transform:translateX(3px)}
  [dir="rtl"] .os-action:hover>svg,[dir="rtl"] .os-library-row:hover .os-row-action svg,[dir="rtl"] .os-topic:hover>svg{transform:translateX(-3px)}
}
.os-action>svg,.os-row-action svg,.os-topic>svg{transition:transform 220ms var(--ease-spring)}

@media (max-width:1050px){
  .os-command{grid-template-columns:1.35fr .8fr}
  .os-focus-copy{width:70%}
  .os-focus-art{width:34%}
  .os-content-grid{grid-template-columns:1fr}
  .os-topic-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:860px) and (min-width:761px){
  #sidebar{width:216px}
  #view{padding-inline:24px}
  .os-command{grid-template-columns:1fr}
  .os-plan-card{min-height:250px}
}
@media (max-width:760px){
  #view{padding:20px 15px calc(118px + env(safe-area-inset-bottom))}
  #sidebar{
    width:100%;padding:7px 10px calc(7px + env(safe-area-inset-bottom));
    background:rgba(255,255,255,.96);box-shadow:0 -12px 36px rgba(10,39,72,.08);
  }
  #nav{display:grid;grid-template-columns:repeat(4,1fr);gap:4px}
  .nav-group,.nav-item:not(.mobile-primary):not(.mobile-more){display:none}
  .nav-item.mobile-primary,.mobile-more{display:flex;min-width:0;min-height:54px;padding:6px 2px}
  .nav-item .ico{width:22px;height:22px}.nav-item .ico svg{width:20px;height:20px}
  .nav-item .lbl{font-size:9px;line-height:1.1}
  .nav-item.active{background:#edf4fa}
  .nav-item.active::before{inset:auto 25% 0;height:3px}
  .nav-badge{top:3px;right:calc(50% - 23px);transform:none}
  .os-home-top{display:flex;align-items:flex-start;margin-bottom:17px}
  .os-home-top h1{font-size:28px;letter-spacing:-1px}
  .os-home-top .sage-home-sub{max-width:230px}
  .sage-create-btn{width:44px;height:44px;padding:0;justify-content:center;font-size:0;margin:0;border-radius:14px}
  .sage-create-btn svg{width:20px;height:20px}
  .os-command{grid-template-columns:1fr;gap:10px}
  .os-focus-card{min-height:360px;border-radius:21px}
  .os-focus-copy{width:100%;min-height:360px;padding:175px 21px 22px;justify-content:flex-end}
  [dir="rtl"] .os-focus-copy{padding:175px 21px 22px}
  .os-focus-art{width:100%;height:165px;right:0;top:0}
  [dir="rtl"] .os-focus-art{left:0}
  .os-focus-art::before{width:185px;height:185px}
  .os-focus-art .sage-lesson-cover{width:84px;height:120px;transform:rotate(4deg)}
  .sage-lesson-mark{width:78px;height:78px}
  .os-focus-card .sage-source{margin:0 0 5px}
  .os-focus-card h2{font-size:24px}
  .os-focus-card .sage-hero-description{font-size:12px;line-height:1.45;margin:8px 0 13px}
  .os-focus-card .sage-link-btn{font-size:11px}
  .os-plan-card{border-radius:18px;padding:17px;min-height:225px}
  .os-ring-row{margin:16px 0 13px}.os-ring{width:64px;height:64px}
  .os-action-strip{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding:2px 1px 7px;scrollbar-width:none}
  .os-action{min-width:250px;scroll-snap-align:start}
  .os-content-grid{margin-top:27px;gap:28px}
  .os-topic-grid{grid-template-columns:1fr 1fr}
  .os-topic{min-height:58px}
  .os-page-head{align-items:center;margin-bottom:17px}
  .os-page-head h1.page{font-size:30px}
  .os-page-head .page-sub{font-size:12px}
  .os-add-source{width:42px;padding:0;font-size:0;justify-content:center}
  .os-add-source svg{font-size:17px}
  .os-library-seg{display:flex;width:100%}.os-library-seg button{flex:1;justify-content:center}
  .os-library-continue{grid-template-columns:38px minmax(0,1fr) 22px;padding:11px;min-height:78px}.os-continue-cta{font-size:0}.os-continue-cta svg{font-size:16px}
  .os-filter-toggle{width:45px;font-size:0;padding:0;justify-content:center}
  .os-filter-toggle svg{width:18px;height:18px}
  .os-filter-rail{max-height:0;opacity:0;padding:0;overflow:hidden;transition:max-height 280ms var(--ease-spring),opacity 180ms ease,padding 280ms ease}
  .os-filter-rail.is-open{max-height:65px;opacity:1;padding:2px 0 12px;overflow-x:auto}
  .os-library-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .os-library-grid .lib-card{min-height:243px;padding:10px}
  .os-library-grid .lib-coverimg,.os-library-grid .lib-emoji{height:135px}
  .os-library-grid .status-dot{top:17px;left:17px}
  [dir="rtl"] .os-library-grid .status-dot{left:auto;right:17px}
  .os-library-grid .lib-title{font-size:12px}.os-library-grid .lib-author{font-size:10px}.os-library-grid .tag{font-size:8px}
  .studio-head{grid-template-columns:76px minmax(0,1fr) auto;gap:12px;padding:14px;align-items:start}
  .studio-cover-wrap{width:76px}.studio-cover-wrap .item-cover,.studio-cover-wrap .item-emoji{width:68px;height:96px}
  .studio-copy h1.page{font-size:21px}.studio-oneliner,.studio-stats{display:none}
  .studio-actions{align-self:start}.studio-actions .btn.primary{width:42px;padding:0;font-size:0;justify-content:center}.studio-actions .btn.primary svg{font-size:17px}
  .studio-modebar{position:sticky;top:8px;z-index:20;margin-top:12px;padding:4px;gap:2px;box-shadow:0 8px 24px rgba(10,39,72,.08)}
  .studio-modebar .tab{min-height:52px;padding:5px 3px;flex-direction:column;gap:2px;font-size:9px}.studio-modebar .tab svg{width:18px;height:18px}.studio-modebar .tab b{display:none}
  .studio-canvas{padding:17px 14px;min-height:390px;border-radius:18px}
  .studio-toolbar{display:block;padding-bottom:15px}.studio-toolbar h2{font-size:22px}.studio-toolbar-actions{justify-content:flex-start;margin-top:13px}
  .studio-toolbar-actions .btn{font-size:11px;padding:8px 10px}.studio-toolbar-actions .btn.primary{order:-1}
  .studio-tuning summary{grid-template-columns:18px auto minmax(0,1fr) 16px;padding:10px}.studio-tuning summary small{font-size:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .studio-reading{margin-top:20px}.studio-reading .md{font-size:15px;line-height:1.72}
  .modal-back{align-items:flex-end;padding:0}
  .modal{width:100%;max-width:none;border-radius:22px 22px 0 0;padding:22px 18px calc(24px + env(safe-area-inset-bottom));max-height:84vh}
  .modal{animation-name:osSheetIn}
  .modal-back.is-closing .modal{animation-name:osSheetOut}
  .sheet-handle{display:block;width:42px;height:4px;border-radius:99px;background:var(--line);margin:-10px auto 17px}
}
@media (max-width:390px){
  .os-focus-copy{padding-inline:18px}
  .os-focus-card .sage-hero-actions{gap:8px}.os-focus-card .sage-play-btn{padding-inline:12px;font-size:12px}
  .os-library-grid .lib-card{min-height:230px}.os-library-grid .lib-coverimg,.os-library-grid .lib-emoji{height:126px}
  .studio-head{grid-template-columns:64px minmax(0,1fr) auto}.studio-cover-wrap{width:64px}.studio-cover-wrap .item-cover,.studio-cover-wrap .item-emoji{width:58px;height:82px}
  .studio-byline{font-size:11px}.studio-actions{gap:4px}.studio-actions .btn{width:38px;height:38px;min-height:38px}
}
@media (prefers-reduced-motion:reduce){
  .os-focus-card,.os-plan-card,.os-action,.os-library-row,.os-topic,.studio-head,.studio-canvas,.os-ring,.sage-lesson-mark{animation:none!important}
}
@keyframes osRise{from{opacity:0;transform:translateY(12px) scale(.992)}to{opacity:1;transform:none}}
@keyframes osLightIn{from{opacity:0}to{opacity:1}}
@keyframes osMarkIn{from{opacity:0;transform:translateY(12px) scale(.88)}to{opacity:1;transform:none}}
@keyframes osRingIn{from{opacity:.2;transform:scale(.84) rotate(-18deg)}to{opacity:1;transform:none}}
@keyframes osSheetIn{from{opacity:0;transform:translateY(34px)}to{opacity:1;transform:none}}
@keyframes osSheetOut{to{opacity:0;transform:translateY(30px)}}