@import url("https://fonts.googleapis.com/css2?family=Figtree:wght@400;500;600;700&family=JetBrains+Mono:wght@400;600&family=Young+Serif&display=swap");
:root{
  --bg:#F2F6F4;--surface:#FFFFFF;--surface-2:#F5F8F7;--ink:#1F2433;--muted:#5C6675;--line:#D6E0DD;
  --accent:#C93F80;--accent-ink:#FFFFFF;--accent-soft:#FBE1EE;--violet:#6A4FA6;--violet-soft:#ECE6F8;--teal:#1C8580;--teal-soft:#DDF1EE;--good:#1C8580;
  --display:"Young Serif",Georgia,"Times New Roman",serif;
  --body:"Figtree",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  color-scheme:dark;--bg:#101817;--surface:#172221;--surface-2:#131C1B;--ink:#E6EEEC;--muted:#98A8A5;--line:#27403D;
  --accent:#F07AB2;--accent-ink:#1E0B15;--accent-soft:#3B1D2D;--violet:#B7A2F0;--violet-soft:#2A2340;--teal:#4FC7BE;--teal-soft:#153A37;--good:#4FC7BE;}}
:root[data-theme="dark"]{
  color-scheme:dark;--bg:#101817;--surface:#172221;--surface-2:#131C1B;--ink:#E6EEEC;--muted:#98A8A5;--line:#27403D;
  --accent:#F07AB2;--accent-ink:#1E0B15;--accent-soft:#3B1D2D;--violet:#B7A2F0;--violet-soft:#2A2340;--teal:#4FC7BE;--teal-soft:#153A37;--good:#4FC7BE;}
*{box-sizing:border-box}
body{background:radial-gradient(900px 500px at 100% -10%,var(--teal-soft),transparent 60%),radial-gradient(700px 480px at -10% 30%,var(--violet-soft),transparent 60%),var(--bg);background-attachment:fixed;color:var(--ink);font:16px/1.55 var(--body);padding-inline:16px}
.wrap{max-width:1040px;margin-inline:auto}
h1,h2{font-family:var(--display);font-weight:400;text-wrap:balance;margin:0;line-height:1.1}
h1{font-size:clamp(2.2rem,6vw,3.6rem)}
h2{font-size:1.6rem}
p{margin:0}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.eyebrow,.code,.side,.count{font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}

/* top bar */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--bg);border-bottom:1px solid var(--line);margin-inline:-16px;padding-inline:16px}
.top-in{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding-block:12px}
.brand{font-family:var(--display);font-size:1.3rem;letter-spacing:-.01em;color:var(--ink);text-decoration:none;margin-right:auto}
.brand i{color:var(--accent);font-style:normal}
nav{display:flex;gap:4px;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:3px}
nav button{border:0;background:none;padding:6px 14px;border-radius:999px;font-weight:600;font-size:.9rem;color:var(--muted)}
nav button[aria-current="page"]{background:var(--violet);color:var(--surface)}
.edit-t{border:1px dashed var(--accent);background:none;color:var(--accent);border-radius:999px;padding:6px 14px;font-weight:600;font-size:.9rem}

/* buttons */
.btn,.primary{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--accent-ink);border:0;border-radius:10px;padding:10px 18px;font-weight:600;text-decoration:none}
.ghost{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:9px 14px;font-weight:600}
.mini{background:none;border:1px solid var(--line);border-radius:8px;padding:4px 10px;font-size:.8rem;font-weight:600;color:var(--muted)}
.danger{color:#C23B3B;border-color:currentColor}

/* hero */
.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;padding-block:48px 32px}
.hero-txt{display:grid;gap:14px;justify-items:start}
.tag{font-size:1.15rem;color:var(--teal);font-weight:600}
.about{max-width:60ch;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--violet-soft);background:var(--violet-soft);color:var(--violet);font-weight:600;border-radius:999px;padding:4px 12px;font-size:.88rem}
.record-wrap{display:grid;place-items:center;position:relative;isolation:isolate}
.leaves{position:absolute;inset:-12% 0;width:100%;height:124%;z-index:-1;pointer-events:none}
.record{width:min(300px,70vw);aspect-ratio:1;max-width:100%;border-radius:50%;display:grid;place-items:center;
  background:radial-gradient(circle at 35% 30%,rgba(255,255,255,.14),transparent 40%),repeating-radial-gradient(circle,#17171d 0 2px,#22222a 2px 4px);
  box-shadow:0 18px 40px rgba(20,20,30,.28);animation:spin 9s linear infinite}
.label{width:40%;aspect-ratio:1;border-radius:50%;background:var(--accent-soft);border:3px solid var(--teal);display:grid;place-content:center;text-align:center;gap:2px;font-family:var(--mono);font-size:.6rem;letter-spacing:.08em;color:var(--ink);position:relative;overflow:hidden}
.label-top{position:relative;z-index:1}
.label b{position:relative;z-index:1}
.label-curve{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.label-curve text{font-family:var(--mono);font-size:8.5px;letter-spacing:1.2px;fill:var(--accent);text-transform:uppercase;font-weight:600}
.label b{font-family:var(--display);font-size:1.5rem;font-weight:400;letter-spacing:0;color:var(--accent)}
@keyframes spin{to{transform:rotate(360deg)}}

/* tracks */
.section{padding-block:28px;display:grid;gap:16px}
.tracks{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.tracks li{display:grid;grid-template-columns:3ch 1fr;gap:12px;padding-block:12px;border-bottom:1px solid var(--line);align-items:baseline}
.tracks .n{font-family:var(--mono);color:var(--teal);font-variant-numeric:tabular-nums}
.tracks .t{font-weight:600}
.tracks .a{color:var(--muted)}

/* study */
.study-head{padding-block:40px 20px;display:grid;gap:10px}
.study-head p:not(.eyebrow){color:var(--muted);max-width:60ch}
.decks{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;padding-bottom:40px}
.deck{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto auto;column-gap:14px;row-gap:2px;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;transition:border-color .15s,transform .15s}
.deck:hover{border-color:var(--teal);transform:translateY(-2px)}
.deck .tube{grid-row:1/4}
.deck .dt{font-family:var(--display);font-size:1.25rem;line-height:1.2}
.deck .meta{font-size:.85rem;color:var(--muted)}
.deck.add{place-content:center;grid-template-columns:1fr;border-style:dashed;color:var(--accent);font-weight:600;min-height:110px}
.tube{width:22px;height:74px;border-radius:5px 5px 11px 11px;border:2px solid var(--line);background:linear-gradient(to bottom,var(--cap) 0 30%,var(--surface-2) 30%);position:relative}
.tube::after{content:"";position:absolute;inset:auto 3px 6px 3px;height:30%;border-radius:0 0 7px 7px;background:var(--teal-soft)}

.deck-view{padding-block:24px 60px;display:grid;gap:22px}
.back{justify-self:start;background:none;border:0;color:var(--muted);font-weight:600;padding:0}
.dv-head{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.dv-head .grow{flex:1;min-width:0}
.viewer{display:grid;gap:14px;justify-items:center;max-width:640px;width:100%;margin-inline:auto}
.fc{width:100%;perspective:1400px;border:0;background:none;padding:0;text-align:left}
.fc-in{display:grid;transition:transform .5s cubic-bezier(.2,.7,.2,1);transform-style:preserve-3d}
.fc.is-flipped .fc-in{transform:rotateY(180deg)}
.face{grid-area:1/1;backface-visibility:hidden;-webkit-backface-visibility:hidden;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px 24px;min-height:230px;display:grid;align-content:space-between;gap:16px;box-shadow:0 10px 30px rgba(28,34,48,.08)}
.face p{font-size:1.3rem;line-height:1.4;overflow-wrap:anywhere}
.face.back{transform:rotateY(180deg);background:var(--accent-soft);border-color:var(--accent)}
.face.back .side{color:var(--accent)}
.face .foot{display:flex;justify-content:space-between;gap:8px}
.ctrl{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;align-items:center}
.count{font-variant-numeric:tabular-nums;min-width:9ch;text-align:center}
.hint{font-size:.82rem;color:var(--muted);text-align:center}
.got{background:var(--good);color:#fff;border:0;border-radius:10px;padding:9px 16px;font-weight:600}
.known-tag{font-family:var(--mono);font-size:.7rem;color:var(--good);letter-spacing:.06em;text-transform:uppercase}

.list{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.row{display:grid;grid-template-columns:1fr 1fr auto;gap:14px;align-items:start;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.row .rq{font-weight:600}
.row .ra{color:var(--muted)}
.row .acts{display:flex;gap:6px}
.row.known{border-color:var(--good)}
.pls{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.pl{display:grid;grid-template-columns:84px 1fr;gap:14px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px}
.pl-cover{width:84px;height:84px;max-width:100%;border-radius:10px;object-fit:cover;display:block}
.pl-ph{display:grid;place-items:center;font-family:var(--display);font-size:2rem;color:#fff;background:linear-gradient(135deg,var(--accent),var(--violet) 55%,var(--teal))}
.pl-body{display:grid;gap:4px;min-width:0}
.pl h3{margin:0;font-size:1.05rem;line-height:1.25;overflow-wrap:anywhere}
.pl p{font-size:.88rem;color:var(--muted)}
.pl-link{justify-self:start;font-weight:600;color:var(--teal);text-decoration:none;font-size:.9rem}
.pl-link:hover{text-decoration:underline}
.sp-profile{display:grid;grid-template-columns:64px 1fr auto;gap:16px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px 18px;text-decoration:none;color:var(--ink);transition:border-color .15s,transform .15s}
.sp-profile:hover{border-color:var(--teal);transform:translateY(-2px)}
.sp-icon{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--violet) 55%,var(--teal))}
.sp-icon svg{width:30px;height:30px}
.sp-text{display:grid;gap:2px;min-width:0}
.sp-text b{font-family:var(--display);font-weight:400;font-size:1.35rem;overflow-wrap:anywhere}
.sp-text span:last-child{color:var(--muted);font-size:.9rem}
.sp-go{font-weight:600;color:var(--teal);white-space:nowrap}
.plrow{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding-top:12px;border-top:1px solid var(--line)}
.plrow .ctrl,.plrow .warn{grid-column:1/-1}
.warn{color:#C23B3B;font-size:.85rem}
.empty{color:var(--muted);text-align:center;padding:32px;border:1px dashed var(--line);border-radius:14px}

/* editor */
.panel{background:var(--surface);border:1px dashed var(--accent);border-radius:14px;padding:18px;display:grid;gap:12px}
.panel h3{margin:0;font-size:1rem}
.panel .note{font-size:.85rem;color:var(--muted)}
.field{display:grid;gap:4px;font-size:.85rem;font-weight:600;color:var(--muted)}
.field input,.field textarea,.field select{background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:9px 11px;font-weight:400;color:var(--ink);width:100%}
.field textarea{min-height:90px;resize:vertical}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.trow{display:grid;grid-template-columns:1fr 1fr auto;gap:8px;align-items:end}
.savebar{position:fixed;left:0;right:0;bottom:0;z-index:10;background:var(--ink);color:var(--bg);padding:12px 16px calc(12px + env(safe-area-inset-bottom,0px))}
.savebar .wrap{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.savebar p{margin-right:auto;font-size:.9rem}
.savebar .ghost{background:transparent;color:var(--bg);border-color:rgba(255,255,255,.35)}
.toast{position:fixed;left:50%;bottom:84px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:10px;font-size:.9rem;z-index:20;max-width:calc(100% - 32px)}
footer{padding-block:30px 40px;color:var(--muted);font-size:.82rem;border-top:1px solid var(--line)}

@media (max-width:820px){
  .hero{grid-template-columns:1fr;gap:28px;padding-block:32px 20px}
  .record-wrap{order:-1}
  .record{width:min(220px,60vw)}
  .row{grid-template-columns:1fr}
  .grid2,.trow,.plrow{grid-template-columns:1fr}
}
@media (max-width:480px){.sp-profile{grid-template-columns:52px 1fr}.sp-icon{width:52px;height:52px}.sp-go{grid-column:2}}
@media (prefers-reduced-motion:reduce){.record{animation:none}.fc-in,.deck,.sp-profile{transition:none}}

/* ---- standalone site additions ---- */
html{background:var(--bg);-webkit-text-size-adjust:100%;overflow-x:clip}
body{margin:0;min-height:100vh}
img{max-width:100%}
[hidden]{display:none!important}
.embeds{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(300px,100%),1fr));gap:14px}
.embeds iframe{width:100%;height:352px;border:0;border-radius:12px;display:block;background:var(--surface)}
footer a{color:var(--teal)}
nav .navlink{padding:6px 14px;border-radius:999px;font-weight:600;font-size:.9rem;color:var(--muted);text-decoration:none}
nav .navlink[aria-current="page"]{background:var(--violet);color:var(--surface)}
.fc{display:block;color:var(--ink)}
.fc-in{width:100%}
.face p{color:var(--ink)}

/* ---- study modes + multiple choice ---- */
.modes{display:inline-flex;justify-self:center;gap:4px;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:3px}
.modes button{border:0;background:none;padding:7px 16px;border-radius:999px;font-weight:600;font-size:.9rem;color:var(--muted)}
.modes button[aria-selected="true"]{background:var(--teal);color:var(--surface)}
.modes button:disabled{opacity:.45;cursor:not-allowed}
.qcard{min-height:0;align-content:start}
.qtop{display:flex;justify-content:space-between;gap:8px}
.qbar{height:6px;border-radius:99px;background:var(--teal-soft);overflow:hidden}
.qbar span{display:block;height:100%;background:var(--teal);border-radius:99px;transition:width .3s}
.choices{display:grid;gap:10px;width:100%}
.choice{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:center;text-align:left;width:100%;background:var(--surface);border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;color:var(--ink);transition:border-color .15s,background .15s}
.choice:hover:not(:disabled){border-color:var(--violet)}
.choice .key{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-family:var(--mono);font-size:.8rem;font-weight:600;background:var(--violet-soft);color:var(--violet)}
.choice:disabled{cursor:default}
.choice.right{border-color:var(--teal);background:var(--teal-soft)}
.choice.right .key{background:var(--teal);color:var(--surface)}
.choice.wrong{border-color:var(--accent);background:var(--accent-soft)}
.choice.wrong .key{background:var(--accent);color:var(--surface)}
.choice.dim{opacity:.55}
.verdict{font-weight:700;text-align:center}
.verdict.ok{color:var(--teal)}
.verdict.no{color:var(--accent)}
.qdone{text-align:center;justify-items:center;min-height:0}
.score{font-family:var(--display);font-size:3.4rem!important;line-height:1;color:var(--violet)!important}
.score span{font-size:1.4rem;color:var(--muted)}
.qmsg{font-size:1rem!important;color:var(--muted)!important}
@media (prefers-reduced-motion:reduce){.qbar span,.choice{transition:none}}
.verdict{width:100%;text-align:left;border-radius:12px;padding:12px 14px;display:grid;gap:4px;font-weight:400}
.verdict b{font-size:1.02rem}
.verdict p{margin:0;color:var(--ink);line-height:1.5}
.verdict.ok{background:var(--teal-soft);border:1px solid var(--teal)}
.verdict.no{background:var(--accent-soft);border:1px solid var(--accent)}
.verdict.ok b{color:var(--teal)}
.verdict.no b{color:var(--accent)}

/* ---- rich cards + images + exam sets ---- */
.card-img{width:100%;max-height:300px;object-fit:contain;border-radius:10px;background:var(--surface-2);border:1px solid var(--line)}
.qcard .card-img{max-height:240px}
.row-img{display:block;width:100%;max-width:180px;border-radius:8px;margin-bottom:8px;background:var(--surface-2)}
.face p i,.choice i,.rq i,.ra i{font-style:italic}
.deck.is-exam{border-color:var(--accent)}
.deck.is-exam:hover{border-color:var(--accent)}
.exam-tag{grid-column:2;justify-self:start;margin-top:4px;font-family:var(--mono);font-size:.62rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-ink);background:var(--accent);border-radius:999px;padding:2px 9px}
.exam-line{font-family:var(--mono);font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;color:var(--accent);margin-top:2px}

/* ---- deck groups ---- */
.deck-group{padding-block:22px 8px}
.deck-group + .deck-group{border-top:1px solid var(--line)}
.group-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.group-head h2{font-size:1.35rem}
.group-meta{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.group-line{font-family:var(--mono);font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;color:var(--teal);margin:0 0 2px}
.study-head + .deck-group{padding-top:6px}
.chip-link{text-decoration:none;color:var(--violet);transition:border-color .15s,background .15s,transform .15s}
.chip-link:hover{border-color:var(--violet);background:var(--violet-soft);transform:translateY(-1px)}
.balloon{height:1.15em;width:auto;vertical-align:-.28em;margin-left:6px}

/* haiku intro */
.about.haiku{font-family:var(--display);font-style:italic;font-size:1.35rem;line-height:1.7;color:var(--ink);max-width:none}
/* easter egg: blends into the page, appears when highlighted or in source */
.egg{color:var(--bg)}
.egg::selection{color:var(--accent);background:var(--accent-soft)}

/* ---- playlist tiles ---- */
.pl-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:2px}
.pl-handle{font-family:var(--mono);font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.pl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}
.pl-tile{text-decoration:none;color:var(--ink);display:grid;gap:8px;align-content:start}
.pl-art{position:relative;aspect-ratio:1;border-radius:14px;overflow:hidden;background:linear-gradient(135deg,var(--accent),var(--violet) 55%,var(--teal));box-shadow:0 8px 22px rgba(28,34,48,.16);transition:transform .16s,box-shadow .16s}
.pl-img{width:100%;height:100%;object-fit:cover;display:block}
.pl-img:not([src]){opacity:0}
.pl-play{position:absolute;right:10px;bottom:10px;width:36px;height:36px;border-radius:50%;background:#1DB954;display:grid;place-items:center;opacity:0;transform:translateY(6px);transition:opacity .16s,transform .16s;box-shadow:0 4px 12px rgba(0,0,0,.3)}
.pl-play svg{width:20px;height:20px}
.pl-tile:hover .pl-art{transform:translateY(-3px);box-shadow:0 12px 26px rgba(28,34,48,.22)}
.pl-tile:hover .pl-play,.pl-tile:focus-visible .pl-play{opacity:1;transform:none}
.pl-name{font-weight:600;font-size:.95rem;line-height:1.25;overflow-wrap:anywhere}
.pl-all-art{display:grid;place-items:center}
.pl-all-art svg{width:46px;height:46px}

/* ===== Test Lab tab ===== */
@media (max-width:430px){nav .navlink{padding:6px 10px;font-size:.84rem}}
.study-head a{color:var(--accent);font-weight:600}
.tl-actions{display:grid;gap:12px;margin-block:4px 30px}
.tl-card{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px 18px;text-decoration:none;color:var(--ink);box-shadow:0 8px 24px rgba(28,34,48,.06)}
.tl-card b{display:block;font-family:var(--display);font-weight:400;font-size:1.35rem;line-height:1.2}
.tl-card span span{display:block;font-size:.92rem;opacity:.85;margin-top:2px}
.tl-create{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.tl-ico{font-size:1.6rem;line-height:1}
.tl-go{font-size:1.3rem}
.tl-recent{padding-bottom:64px}
.tl-empty{color:var(--muted);padding:14px 0}
.tl-test{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px 16px;margin-top:12px;display:grid;gap:12px}
.tl-row{display:flex;gap:14px;align-items:center}
.tl-score{flex:none;width:76px;height:72px;border-radius:14px;background:var(--violet-soft);display:grid;place-content:center;text-align:center;gap:2px}
.tl-score b{font-family:var(--display);font-weight:400;font-size:1.5rem;line-height:1}
.tl-score span{font-family:var(--mono);font-size:.72rem;color:var(--muted)}
.tl-score.good{background:var(--teal-soft)}
.tl-score.low{background:var(--accent-soft)}
.tl-meta{display:grid;gap:2px;min-width:0}
.tl-when{font-weight:600}
.tl-decks{color:var(--muted);font-size:.92rem;overflow-wrap:anywhere}
.tl-btns{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.tl-btn{border:1.5px solid var(--line);background:var(--surface-2);border-radius:999px;padding:6px 14px;font-weight:600;font-size:.88rem;color:var(--ink);text-decoration:none}
.tl-rm{margin-left:auto;background:none;border-color:transparent;color:var(--muted)}
.tl-confirm{margin-left:auto;display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:.88rem;color:var(--muted)}
.tl-confirm button{border:1.5px solid var(--line);background:var(--surface);border-radius:999px;padding:4px 12px;font-weight:600;font-size:.85rem}
.tl-confirm button:first-of-type{border-color:var(--accent);color:var(--accent)}
.tl-note{display:grid;gap:4px;position:relative}
.tl-note span{font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.tl-note textarea{width:100%;resize:vertical;border:1px solid var(--line);border-radius:10px;padding:8px 10px;background:var(--surface-2);font-size:16px;line-height:1.4;min-height:44px}
.tl-saved{position:absolute;right:2px;top:0;font-size:.75rem;color:var(--teal);font-style:normal}
.tl-more{margin-top:14px;background:none;border:0;color:var(--violet);font-weight:600;padding:6px 0}

/* ===== Phones turned sideways: picture/question on the left, answers on the right ===== */
@media (orientation:landscape) and (max-height:520px){
  body{padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}
  .top{position:static}
  .top-in{padding-block:6px}
  /* deck heading squeezed into one row so the card is on screen */
  .deck-view{padding-block:8px 40px;gap:10px 16px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center}
  .deck-view > :not(.back):not(.dv-head):not(.modes){grid-column:1 / -1}
  .dv-head{flex-wrap:nowrap;gap:10px}
  .dv-head .tube,.dv-head .group-line,.dv-head .code{display:none}
  .dv-head h1{font-size:1.25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .modes button{padding:5px 12px;font-size:.85rem}
  .viewer{max-width:none}
  .face{min-height:0;padding:12px 16px;gap:10px}
  .face p{font-size:1.08rem}
  .fc .face:has(.card-img){grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-template-areas:"side side" "img txt" "img foot";column-gap:18px;align-content:stretch}
  .fc .face:has(.card-img) .side{grid-area:side}
  body:has(.deck-view) .top{display:none} /* inside a deck, the All decks row is enough */
  .fc .face:has(.card-img) .card-img{grid-area:img;max-height:calc(100vh - 130px);max-height:calc(100dvh - 130px);height:100%}
  .fc .face:has(.card-img) > p{grid-area:txt;align-self:center}
  .fc .face:has(.card-img) .foot{grid-area:foot;align-self:end}
  /* multiple choice: question card on the left stays put, answers on the right */
  .viewer:has(.qcard){grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);align-items:start;justify-items:stretch;column-gap:18px}
  .viewer:has(.qcard) > .qcard{grid-column:1;grid-row:1 / span 6;position:sticky;top:10px}
  .viewer:has(.qcard) > :not(.qcard){grid-column:2}
  .qcard{padding:12px 16px;gap:8px}
  .qcard .card-img{max-height:calc(100vh - 210px);max-height:calc(100dvh - 210px)}
  .qcard p{font-size:1.02rem}
  .choice{padding:9px 12px}
}
/* three tabs on a narrow phone: keep the header on one row */
@media (max-width:430px){.top-in{gap:8px;flex-wrap:nowrap}.brand{font-size:1.08rem;white-space:nowrap}nav{gap:2px;flex:none}nav .navlink{padding:6px 9px;font-size:.8rem;white-space:nowrap}}
@media (max-width:350px){.brand{font-size:.95rem}nav .navlink{padding:5px 7px;font-size:.74rem}}
/* Test Lab notes: collapsed until tapped */
.tl-addnote{justify-self:start;background:none;border:0;padding:2px 0;color:var(--violet);font-weight:600;font-size:.9rem}
.tl-notecard{position:relative;display:block;width:100%;text-align:left;border:1px solid var(--line);border-radius:10px;background:var(--surface-2);padding:9px 56px 9px 12px;color:var(--ink);font-size:.95rem;line-height:1.4}
.tl-notetext{white-space:pre-wrap;overflow-wrap:anywhere;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.tl-edit{position:absolute;top:9px;right:12px;font-weight:600;font-size:.85rem;color:var(--violet)}
.tl-nrow{display:flex;justify-content:space-between;align-items:center;margin-top:2px}
.tl-nrow .tl-saved{position:static}
.tl-done{background:none;border:0;color:var(--violet);font-weight:600;padding:4px 0}