/* flashcards.css 20261017.1 - page design for /flashcards/ (loads after /life-assets/ui.css) */
body[data-tool=flashcards]{background:#f4f7f3;color:#243345}
[data-tool=flashcards] header{border-bottom-color:#e1e9de}
[data-tool=flashcards] header .header a,[data-tool=flashcards] footer a{display:inline-flex;align-items:center;min-height:44px;min-width:44px}
[data-tool=flashcards] main{padding-top:26px}

/* hero */
.hero{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px 24px;margin-bottom:6px}
.hero h1{margin:6px 0 4px;font-size:clamp(26px,4.6vw,34px);letter-spacing:.01em}
.stats{display:flex;gap:10px}
.stat{min-width:96px;padding:10px 16px;background:#fff;border:1px solid #dfe8dc;border-radius:14px;text-align:center;line-height:1.25}
.stat b{display:block;font-size:24px;color:var(--accent);font-variant-numeric:tabular-nums}
.stat span{font-size:12px;color:#5f7083}
[data-tool=flashcards] .badges{margin:10px 0 18px}
[data-tool=flashcards] .badge{border-color:#dfe8dc;color:#4a5a6e}

/* panels */
[data-tool=flashcards] .panel{border-color:#e3eadf;border-radius:18px;box-shadow:0 1px 2px #1f3a2a0a,0 8px 24px #1f3a2a0a}
[data-tool=flashcards] .layout>.panel{margin-top:0}
.study{padding:22px 24px 24px}
.toolbar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 18px;align-items:end;margin-bottom:14px}
.toolbar .field{margin:0 0 6px;font-size:13px;color:#4a5a6e}
.due-row{white-space:nowrap;font-size:14px;color:#3c4b5f}
.progress{height:6px;background:#e4ebe1;border-radius:6px;overflow:hidden}
.progress span{display:block;height:100%;width:0;background:var(--accent);border-radius:6px;transition:width .35s ease}
.word-count{margin:8px 0 2px;font-size:13px;color:#5f7083;text-align:center}

/* the card */
.stage{display:flex;justify-content:center;padding:10px 0 4px}
.flashcard.themed{width:100%;max-width:420px;aspect-ratio:4/3;margin:0 auto;display:flex;align-items:safe center;justify-content:safe center;text-align:center;min-height:0;padding:14% 15%;overflow:auto;background-color:transparent;background-size:100% 100%;background-repeat:no-repeat;border:0;border-radius:16px;font-size:clamp(18px,4.4vw,28px);line-height:1.55;box-shadow:0 12px 28px #1f3a2a2e,0 2px 6px #1f3a2a1f;transition:box-shadow .2s}
.flashcard.themed:hover{box-shadow:0 16px 34px #1f3a2a38,0 2px 8px #1f3a2a24}
.flashcard.themed:disabled{opacity:1;cursor:default}
.flashcard.themed:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.flashcard.themed.t-forest{background-color:#fbf6e6;color:#2b3a2a}.flashcard.themed.t-forest.answer{background-color:#fff1cf}
.flashcard.themed.t-starry,.flashcard.themed.t-starry.answer{background-color:#1b2a52;color:#f3f6ff}
.flashcard.themed.t-sakura{background-color:#fff5f7;color:#4a3040}.flashcard.themed.t-sakura.answer{background-color:#fff6df}
.flashcard.themed.flip-out{transform:perspective(900px) rotateY(90deg);transition:transform .15s ease-in}
.flashcard.themed.flip-in{animation:fcflip .18s ease-out}
@keyframes fcflip{from{transform:perspective(900px) rotateY(-90deg)}to{transform:perspective(900px) rotateY(0)}}
#cardHint{margin:10px 0 14px;font-size:13px}

/* rating buttons */
.review-actions{gap:10px}
.review-actions .btn{flex-direction:column;line-height:1.35;border-radius:12px;font-size:14px;padding:8px 6px}
.review-actions .btn:disabled{opacity:.5}
.g-again{color:#9a4a3c;border-color:#e3c3bb;background:#fff}
.g-again:hover:not(:disabled){background:#fbf0ed}.g-again:disabled:hover{background:#fff}
.g-good{background:var(--accent);border-color:var(--accent);color:#fff}
.g-good:hover:not(:disabled){background:#356a4e}.g-good:disabled:hover{background:var(--accent)}
.g-easy{color:#2f6348;border-color:#b9d3c2;background:#f1f8f3}
.g-easy:hover:not(:disabled){background:#e3f1e8}.g-easy:disabled:hover{background:#f1f8f3}
#restart{margin-top:14px}

/* theme picker */
.theme-picker{display:flex;align-items:center;flex-wrap:wrap;gap:8px 14px;margin-top:18px;padding-top:16px;border-top:1px solid #edf1ea}
.tp-label{font-size:13px;font-weight:700;color:#4a5a6e}
.tp-list{display:flex;gap:10px;flex:1 1 240px;max-width:340px}
.tp{flex:1 1 0;min-width:0;display:flex;flex-direction:column;align-items:center;gap:5px;padding:6px;min-height:44px;background:#fff;border:2px solid transparent;border-radius:12px;font-size:12px;color:#4a5a6e}
.tp img{width:100%;height:auto;aspect-ratio:4/3;border-radius:7px;object-fit:cover;box-shadow:0 1px 3px #0003;display:block}
.tp:hover{background:#f4f8f3}
.tp.on{border-color:var(--accent);color:#243345;font-weight:700;background:#f1f8f3}

/* create + list */
.controls h2{font-size:17px;margin:0 0 4px}
.controls textarea{min-height:92px}
.controls .btn.primary{margin-top:14px}
.list-head{display:flex;justify-content:space-between;align-items:baseline;margin:24px 0 6px}
.list-head h2{margin:0}
.flash-list{max-height:420px;overflow:auto;padding-right:2px}
#cardList .saved-item{display:flex;align-items:center;gap:6px;background:#f7faf6;border:1px solid #e6eee3;border-radius:12px;padding:6px 6px 6px 14px;margin:8px 0}
.si-main{flex:1;min-width:0}
.si-main strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:15px}
.si-meta{display:block;font-size:12px;color:#5f7083;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.si-actions{display:flex;gap:2px;flex:none}
.btn.mini{min-height:44px;min-width:44px;padding:0 10px;font-size:13px;border-color:transparent;background:transparent}
.btn.mini:hover{background:#e8f1e8}
.btn.mini.danger:hover{background:#fbf0ed}

/* backup + notice */
.backup-panel{margin-top:20px;padding:4px 22px 14px}
.backup-panel summary{display:list-item;margin-left:1.1em;line-height:44px}
[data-tool=flashcards] .notice{margin:16px 0}
.notice:empty{display:none}

@media(min-width:821px){
  [data-tool=flashcards] .layout{grid-template-columns:minmax(0,1fr) 360px;gap:24px;align-items:start}
}
@media(max-width:820px){
  .study{padding:18px 16px 20px}
  .toolbar{grid-template-columns:minmax(0,1fr)}
  .stats{width:100%}.stat{flex:1;padding:8px 12px}.stat b{font-size:20px}
}
@media(prefers-reduced-motion:reduce){.flashcard.themed.flip-in{animation:none}.flashcard.themed.flip-out{transform:none}}
[data-tool=flashcards] .cloud-line{margin:-6px 0 16px;font-size:14px;color:#4a5a6e}
[data-tool=flashcards] .cloud-line a{display:inline-flex;align-items:center;min-height:44px;font-weight:600}

/* header sign-in / sync status chip (20261024.5) */
[data-tool=flashcards] .header{flex-wrap:wrap;row-gap:2px}
[data-tool=flashcards] .header .brand{margin-right:auto}
[data-tool=flashcards] .header .hdr-account{display:flex;align-items:center;font-size:14px;text-align:right}
[data-tool=flashcards] .header .hdr-account a{display:inline-flex;align-items:center;min-height:44px;margin:-10px 0;font-weight:700}
[data-tool=flashcards] .header .hdr-account a:first-child:not(:last-child){margin-right:4px}
@media(max-width:640px){[data-tool=flashcards] .header .hdr-account.hdr-in{flex-basis:100%;justify-content:flex-end}}
@media print{[data-tool=flashcards] .hdr-account{display:none}}

/* ===== Flashcards redesign (2026-10-29). Page-local: /life-assets/ui.css stays shared and untouched. Art in art/. ===== */
:root{--accent:#3f7d5c;--accent-dk:#2f6348;--soft:#eef5ef;--line:#dfe8dc;--ink:#243345;--mute:#5f7083;--gold:#e8a838}
body[data-tool=flashcards]{position:relative}
body[data-tool=flashcards]::before{content:"";position:absolute;z-index:-1;left:0;right:0;top:0;height:900px;background:linear-gradient(to bottom,#f4f7f300 45%,#f4f7f3 100%),url(art/bg.webp) center top/cover no-repeat;pointer-events:none}
[data-tool=flashcards] img{max-width:100%}
[data-tool=flashcards] .header,[data-tool=flashcards] main{max-width:1180px}
[data-tool=flashcards] header{background:#ffffffd9;backdrop-filter:blur(6px)}
[data-tool=flashcards] .brand span{display:grid;place-items:center;width:44px;height:44px;padding:0;background:#dcefe2;border-radius:12px}
[data-tool=flashcards] .btn{border-color:#c6d9cc;border-radius:12px;color:#254a38}
[data-tool=flashcards] .btn:hover:not(:disabled){background:var(--soft)}
[data-tool=flashcards] .btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
[data-tool=flashcards] .btn.primary:hover:not(:disabled){background:var(--accent-dk)}
[data-tool=flashcards] .btn.danger{color:#a63235}
[data-tool=flashcards] .input,[data-tool=flashcards] select,[data-tool=flashcards] textarea{border-color:#c6d9cc;border-radius:12px}
/* hero */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,440px);gap:22px;align-items:center;margin:0 0 16px}
.hero h1{font-size:clamp(1.7rem,4vw,2.4rem);line-height:1.3;margin:6px 0 8px}
.hero .lead{max-width:620px;color:var(--mute);line-height:1.8}
.badge{display:inline-flex;align-items:center;gap:8px;min-height:46px;padding:5px 16px 5px 8px;background:#ffffffd1}
.badge img{width:34px;height:34px;object-fit:contain;flex:none}
.hero-side{display:grid;gap:10px;justify-items:end}
.hero-art{width:100%;height:auto}
.stats{display:flex;gap:10px;width:100%}
.stat{flex:1;min-width:0;padding:10px 12px;background:#fff;border:1px solid var(--line);border-radius:14px;text-align:center;line-height:1.25}
.stat b{display:block;font-size:24px;color:var(--accent);font-variant-numeric:tabular-nums}
.stat span{font-size:12px;color:var(--mute)}
/* templates */
.templates{margin-bottom:16px}
.templates .small{color:var(--mute)}
.tpl-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;margin-top:10px}
.tpl{display:flex;flex-direction:column;align-items:center;gap:2px;min-height:44px;padding:10px 6px 8px;background:#fff;border:2px solid var(--line);border-radius:16px;color:inherit;text-align:center}
.tpl img{width:64px;height:64px;object-fit:contain}
.tpl b{font-size:.92rem}
.tpl small{font-size:.76rem;color:var(--mute);font-weight:400}
.tpl:hover{border-color:#9fc7ae}
/* study panel */
.study{padding:20px 22px 22px}
.coach{display:flex;align-items:center;gap:12px;margin:0 0 12px}
.coach-img{width:72px;height:72px;object-fit:contain;flex:none}
.coach-text{margin:0;font-weight:700;color:var(--accent-dk);line-height:1.5}
.deck-tiles{display:flex;gap:8px;overflow-x:auto;padding:2px 2px 8px;margin:0 -2px 8px;scroll-snap-type:x proximity}
.deck-tile{flex:0 0 auto;min-width:130px;max-width:200px;display:flex;flex-direction:column;gap:3px;align-items:flex-start;text-align:left;min-height:64px;padding:8px 12px;background:#fff;border:2px solid var(--line);border-radius:14px;color:inherit;scroll-snap-align:start}
.deck-tile b{font-size:.92rem;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.deck-tile span{font-size:.76rem;color:var(--mute)}
.dt-bar{display:block;width:100%;height:5px;background:#e4ebe1;border-radius:5px;overflow:hidden}
.dt-bar u{display:block;height:100%;background:var(--accent);text-decoration:none}
.deck-tile.on{border-color:var(--accent);background:#f1f8f3}
.toolbar{grid-template-columns:minmax(0,1fr) auto}
.deck-actions{display:flex;gap:4px;align-items:end}
.deck-actions .btn.mini{border-color:#dfe8dc;background:#fff}
.opts{display:flex;flex-wrap:wrap;gap:6px 18px;align-items:center;margin:2px 0 12px}
.opt-sel{display:flex;align-items:center;gap:8px;font-size:14px}
.opt-sel select{min-height:44px;width:auto}
.due-row{display:flex;align-items:center;gap:8px;min-height:44px;font-size:14px;color:#3c4b5f;cursor:pointer}
.card-tools{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;margin:8px 0 2px}
.card-tools .btn.mini{border-color:#dfe8dc;background:#fff;min-height:44px}
.card-extra{margin:8px auto 0;max-width:420px;padding:8px 12px;background:#fff8e1;border:1px solid #f0dfa8;border-radius:12px;color:#6a5316;font-size:14px;line-height:1.55;white-space:pre-wrap;text-align:center}
.type-box{display:flex;gap:8px;max-width:420px;margin:10px auto 0}
.type-box .input{flex:1;min-width:0}
.choices{display:grid;grid-template-columns:1fr 1fr;gap:8px;max-width:420px;margin:10px auto 0}
.choice{min-height:52px;padding:8px 10px;background:#fff;border:2px solid #cfe0d4;border-radius:12px;color:inherit;font-size:14px;line-height:1.4;overflow-wrap:anywhere}
.choice:hover:not(:disabled){background:var(--soft)}
.choice.right{background:#dff3e6;border-color:#58a878}
.choice.wrong{background:#fde9e6;border-color:#e08b7e}
.choice:disabled{opacity:1;cursor:default}
.grade-bar{margin-top:12px}
.review-actions{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.review-actions .btn{flex-direction:column;gap:2px;line-height:1.3;padding:8px 4px;min-height:58px}
.review-actions .btn b{font-size:14px}
.review-actions .btn small{font-size:12px;font-weight:600;opacity:.85}
.g-hard{color:#8a6a1f;border-color:#e6d6a6;background:#fffaf0}
.g-hard:hover:not(:disabled){background:#fdf1d6}
.review-actions .btn.suggest:not(:disabled){box-shadow:0 0 0 3px #f7d66b}
.summary{margin:12px 0 0;padding:10px 14px;background:#eaf7ee;border:1px solid #b9dcc4;border-radius:12px;color:#1d5a38;font-weight:700;line-height:1.55}
#restart{margin-top:12px}
/* create + list */
.controls h2{margin-top:0}
.list-tools{display:grid;gap:8px;margin:6px 0 8px}
.list-tools select{min-height:44px}
.bulk-bar{display:flex;flex-wrap:wrap;align-items:center;gap:4px 8px;margin:0 0 6px;padding:4px 8px;background:#f1f8f3;border:1px solid var(--line);border-radius:12px}
.bulk-bar .btn.mini{border-color:#dfe8dc;background:#fff}
#cardList .saved-item{display:flex;align-items:center;gap:4px}
.si-check{display:grid;place-items:center;width:44px;height:44px;flex:none;cursor:pointer}
.si-check input{width:20px;height:20px}
.flash-list{max-height:560px}
.empty{text-align:center;padding:18px 10px}
.empty img{display:block;margin:0 auto 6px}
/* stats */
.stats-panel{margin-top:16px}
.stats-grid{display:grid;grid-template-columns:200px minmax(0,1fr);gap:20px;align-items:start}
.ring-box{text-align:center}
.ring{--p:0;width:130px;height:130px;margin:0 auto 6px;border-radius:50%;background:conic-gradient(var(--accent) calc(var(--p)*1%),#e4ebe1 0);display:grid;place-items:center;position:relative}
.ring::before{content:"";position:absolute;inset:14px;background:#fff;border-radius:50%}
.ring span{position:relative;font-size:1.4rem;font-weight:800;color:var(--accent-dk);font-variant-numeric:tabular-nums}
.goal-set{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:8px;font-size:13px}
.goal-set .input{width:80px;min-height:44px;text-align:center}
.stat-cols{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat-card{padding:12px 14px;border:1px solid var(--line);border-radius:14px;background:#fafcfa}
.stat-card.wide{grid-column:1/-1}
.stat-card h3{display:flex;align-items:center;gap:8px;margin:0 0 8px;font-size:.95rem}
.bars{display:flex;align-items:flex-end;gap:6px;height:96px}
.bar{flex:1;min-width:0;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:2px}
.bar i{display:block;width:100%;max-width:26px;min-height:3px;background:linear-gradient(#6bb48a,var(--accent));border-radius:6px 6px 2px 2px}
.bar.fc i{background:linear-gradient(#f2c35c,var(--gold))}
.bar b{font-size:11px;color:var(--mute);font-weight:700;order:-1}
.bar span{font-size:11px;color:var(--mute)}
.mastery{display:flex;height:14px;border-radius:99px;overflow:hidden;background:#e4ebe1;margin:2px 0 8px}
.mastery i{display:block;height:100%;width:0}
.m-new{background:#c9d4cf}.m-learn{background:var(--gold)}.m-know{background:var(--accent)}
.stat img{display:block;margin:0 auto 2px;width:28px;height:28px;object-fit:contain}
.opt-sel img{width:32px;height:32px;object-fit:contain}
.due-row img{width:22px;height:22px;object-fit:contain}
/* settings, dialogs */
.opts-panel{margin-top:16px;padding:4px 22px 14px}
.opts-panel summary{display:list-item;margin-left:1.1em;line-height:44px}
.opts-body{display:grid;gap:4px}
dialog{border:0;border-radius:20px;padding:0;max-width:min(520px,calc(100vw - 24px));width:100%;box-shadow:0 20px 60px #10302733;color:var(--ink)}
dialog::backdrop{background:#10302755}
.dlg{padding:20px}
.dlg h3{margin:0 0 6px}
.dlg p{margin:0 0 8px;line-height:1.6}
#printArea{display:none}
/* mobile */
@media(max-width:1000px){.hero{grid-template-columns:minmax(0,1fr)}.hero-art{max-width:340px;justify-self:center;order:-1}.hero-side{justify-items:center}.tpl-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.stats-grid{grid-template-columns:minmax(0,1fr)}}
@media(max-width:820px){
 .study{padding:16px 14px 18px}
 .toolbar{grid-template-columns:minmax(0,1fr)}
 .deck-actions{justify-content:flex-end}
 .grade-bar{position:fixed;left:8px;right:8px;bottom:8px;z-index:30;margin:0;padding:8px;background:#ffffffee;border:1px solid var(--line);border-radius:16px;box-shadow:0 8px 24px #1f3a2a2e;transform:translateY(130%);transition:transform .2s}
 .study.in-view .grade-bar{transform:none}
 main{padding-bottom:110px}
 .choices{grid-template-columns:1fr}
}
@media(max-width:520px){.tpl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tpl img{width:52px;height:52px}.tpl small{display:none}.stat-cols{grid-template-columns:minmax(0,1fr)}.review-actions .btn small{font-size:11px}}
@media(prefers-reduced-motion:reduce){.grade-bar,.progress span{transition:none}}
/* print: only #printArea */
@media print{
 @page{size:A4;margin:12mm}
 html,body{background:#fff!important}
 body[data-tool=flashcards]::before{display:none}
 [data-tool=flashcards] header,[data-tool=flashcards] main>*:not(#printArea){display:none!important}
 [data-tool=flashcards] main{padding:0;max-width:none}
 #printArea{display:block!important;color:#000;font-family:"Microsoft JhengHei",system-ui,sans-serif}
 .pr-h{font-size:18pt;margin:0 0 6mm}
 .pr-tab{width:100%;border-collapse:collapse;font-size:11pt}
 .pr-tab th,.pr-tab td{border:.6pt solid #888;padding:2mm 3mm;text-align:left;vertical-align:top}
 .pr-tab tr{break-inside:avoid}
}
.review-actions .btn img{width:26px;height:26px;object-fit:contain;flex:none}


.done-box{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;padding:0 14px}.done-box span{font-size:18px;line-height:1.5;font-weight:700}.done-img{display:block;width:110px;height:auto}
.goal-set img{width:28px;height:28px;object-fit:contain;flex:none}
.goal-set{flex-wrap:wrap}
.goal-hint{flex-basis:100%;text-align:center;font-size:12px;color:#a63235}
.btn.confirm-danger{background:#a63235;border-color:#a63235;color:#fff}
.btn.confirm-danger:hover:not(:disabled),.btn.confirm-danger:focus-visible{background:#8a2427;border-color:#8a2427;color:#fff}