:root{--bg: #0a0c0f;--bg-soft: #0f1216;--panel: #14181d;--panel-2: #1a1f26;--line: #23292f;--ink: #f2f4f6;--ink-dim: #7d8792;--accent: #2dd4bf;--accent-2: #5eead4;--accent-ink: #04211d;--new: #38bdf8;--learn: #fbbf24;--review: #34d399;--danger: #f87171;--radius: 14px;--radius-sm: 9px;--shadow: 0 12px 34px rgba(0, 0, 0, .36);color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:radial-gradient(1100px 620px at 12% -8%,rgba(45,212,191,.09) 0%,transparent 60%),radial-gradient(900px 520px at 92% 0%,rgba(56,189,248,.05) 0%,transparent 55%),var(--bg);color:var(--ink);font-family:Outfit,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;min-height:100vh}[lang=ja]{font-family:Noto Sans JP,Outfit,sans-serif}.app{max-width:1120px;margin:0 auto;padding:26px 20px 60px}.topbar{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;margin-bottom:20px}.brand{display:flex;align-items:center;gap:14px}.brand-mark{width:46px;height:46px;display:grid;place-items:center;border-radius:13px;background:linear-gradient(140deg,var(--accent),var(--accent-2));color:var(--accent-ink);font-size:24px;font-weight:700;box-shadow:var(--shadow)}.brand h1{margin:0;font-size:1.32rem;letter-spacing:-.02em}.brand-sub{margin:2px 0 0;color:var(--ink-dim);font-size:.83rem}.tabs{display:flex;flex-wrap:wrap;gap:6px}.tab{border:1px solid var(--line);background:var(--panel);color:var(--ink-dim);padding:8px 14px;border-radius:999px;cursor:pointer;font:inherit;font-size:.86rem;transition:background .15s,color .15s,border-color .15s}.tab:hover:not(:disabled){color:var(--ink);border-color:var(--accent)}.tab.active{background:linear-gradient(140deg,var(--accent),var(--accent-2));color:var(--accent-ink);font-weight:600;border-color:transparent}.tab:disabled{opacity:.36;cursor:not-allowed}.deck-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:11px 16px;margin-bottom:16px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}.chips{display:flex;gap:7px;margin-left:auto;flex-wrap:wrap}.chip{font-size:.75rem;padding:3px 10px;border-radius:999px;background:var(--panel-2)}.chip--new{color:var(--new)}.chip--learn{color:var(--learn)}.chip--review{color:var(--review)}.stack{display:flex;flex-direction:column;gap:16px}.row-gap{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.grow{flex:1;min-width:180px}.muted{color:var(--ink-dim)}.small{font-size:.82rem}.mono{font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:.84rem}.req{color:var(--danger)}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;gap:12px}.panel h3{margin:0;font-size:1rem}.callout{padding:13px 16px;border-radius:var(--radius);background:linear-gradient(140deg,#6ea8ff26,#8b7cff1f);border:1px solid rgba(110,168,255,.32)}.callout--calm{background:#46d39a1a;border-color:#46d39a4d}.banner{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:12px 16px;border-radius:var(--radius);margin-bottom:14px}.banner--error{background:#ff6b7a21;border:1px solid rgba(255,107,122,.4)}input,select,textarea{background:var(--bg-soft);border:1px solid var(--line);color:var(--ink);border-radius:var(--radius-sm);padding:9px 12px;font:inherit;font-size:.9rem;width:100%}input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}textarea{resize:vertical}label{display:flex;flex-direction:column;gap:5px;font-size:.85rem;color:var(--ink-dim)}label.inline{flex-direction:row;align-items:center;gap:10px}label.inline select{width:auto}.field-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}.span-2{grid-column:1 / -1}.two-col{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}.btn{border:1px solid var(--line);background:var(--panel-2);color:var(--ink);padding:9px 16px;border-radius:var(--radius-sm);cursor:pointer;font:inherit;font-size:.88rem;transition:transform .12s,border-color .15s,opacity .15s}.btn:hover:not(:disabled){border-color:var(--accent);transform:translateY(-1px)}.btn:disabled{opacity:.42;cursor:not-allowed}.btn.primary{background:linear-gradient(140deg,var(--accent),var(--accent-2));color:var(--accent-ink);font-weight:600;border-color:transparent}.btn.danger{color:var(--danger)}.link-btn{background:none;border:none;color:var(--accent);cursor:pointer;font:inherit;font-size:.85rem;padding:0;text-decoration:underline}.link-btn.danger{color:var(--danger)}.deck-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(272px,1fr));gap:16px}.deck-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;gap:13px;transition:transform .15s,border-color .15s}.deck-card:hover{transform:translateY(-2px);border-color:var(--accent)}.deck-card h2{margin:0;font-size:1.08rem}.count-row{display:flex;gap:14px;flex-wrap:wrap}.count{font-size:.82rem;color:var(--ink-dim)}.count b{font-size:1.28rem;display:block;line-height:1.15}.count--new b{color:var(--new)}.count--learn b{color:var(--learn)}.count--review b{color:var(--review)}.count--leech{color:var(--danger);align-self:center}.deck-actions{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto}.study{display:flex;flex-direction:column;gap:16px;align-items:center}.study-counts{display:flex;gap:22px}.last-result{text-align:center}.card{width:100%;min-height:268px;background:linear-gradient(150deg,var(--panel),var(--panel-2));border:1px solid var(--line);border-radius:20px;padding:36px 28px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;cursor:pointer;text-align:center;color:inherit;font:inherit;box-shadow:var(--shadow);transition:border-color .18s}.card--revealed{cursor:default;border-color:#6ea8ff66}.card-expression{margin:0;font-size:clamp(2.4rem,8vw,3.9rem);font-weight:600;letter-spacing:.02em}.card-prompt{margin:0;font-size:.85rem}.card-back{display:flex;flex-direction:column;gap:10px;width:100%;border-top:1px solid var(--line);padding-top:18px}.card-reading{margin:0;font-size:1.4rem;color:var(--accent)}.card-meaning{margin:0;font-size:1.28rem;font-weight:500}.card-example{margin:0;font-size:.98rem;color:var(--ink-dim)}.card-notes,.card-stats{margin:0}.answers{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;width:100%}.answer{border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);padding:13px 8px;display:flex;flex-direction:column;align-items:center;gap:3px;cursor:pointer;font:inherit;color:var(--ink);transition:transform .12s,background .15s,border-color .15s}.answer:hover:not(:disabled){transform:translateY(-2px)}.answer:disabled{opacity:.38;cursor:not-allowed}.answer-interval{font-size:1.02rem;font-weight:700;font-variant-numeric:tabular-nums}.answer-label{font-size:.87rem}.answer-key{font-size:.7rem;color:var(--ink-dim)}.answer--again:hover:not(:disabled){border-color:var(--danger)}.answer--again .answer-interval{color:var(--danger)}.answer--hard .answer-interval{color:var(--learn)}.answer--good .answer-interval{color:var(--review)}.answer--easy .answer-interval{color:var(--new)}.keyboard-hint{text-align:center}.done-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:34px;text-align:center;display:flex;flex-direction:column;gap:12px;align-items:center}.done-card h2{margin:0}.toolbar{flex-direction:row;flex-wrap:wrap;align-items:center}.toolbar select{width:auto}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}.cards-table{width:100%;border-collapse:collapse;font-size:.87rem;min-width:780px}.cards-table th,.cards-table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line)}.cards-table th{background:var(--panel-2);font-weight:600;font-size:.8rem;color:var(--ink-dim);position:sticky;top:0}.cards-table tr:last-child td{border-bottom:none}.row--suspended{opacity:.5}.cell-expression{font-size:1.05rem;font-weight:600}.cell-actions{display:flex;gap:10px;white-space:nowrap}.badge{font-size:.72rem;padding:2px 9px;border-radius:999px;background:var(--panel-2)}.badge--new{color:var(--new)}.badge--learn,.badge--relearn{color:var(--learn)}.badge--review{color:var(--review)}.badge--suspended{color:var(--ink-dim)}.badge--buried{color:var(--accent-2)}.pager{justify-content:center}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}.stat-tile{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:15px}.stat-label{margin:0 0 5px;font-size:.76rem;color:var(--ink-dim);text-transform:uppercase;letter-spacing:.06em}.stat-value{margin:0;font-size:1.65rem;font-weight:700;font-variant-numeric:tabular-nums}.state-bar{display:flex;height:15px;border-radius:999px;overflow:hidden;background:var(--bg-soft)}.state-seg--new{background:var(--new)}.state-seg--learn{background:var(--learn)}.state-seg--young{background:#46d39a}.state-seg--mature{background:#2f9d74}.state-seg--suspended{background:#56618a}.state-seg--buried{background:var(--accent-2)}.legend{display:flex;flex-wrap:wrap;gap:14px;font-size:.8rem;color:var(--ink-dim)}.legend-item{display:flex;align-items:center;gap:6px}.swatch{width:10px;height:10px;border-radius:3px;display:inline-block}.swatch--new{background:var(--new)}.swatch--learn{background:var(--learn)}.swatch--young{background:#46d39a}.swatch--mature{background:#2f9d74}.swatch--suspended{background:#56618a}.swatch--buried{background:var(--accent-2)}.heatmap{display:grid;grid-template-rows:repeat(7,1fr);grid-auto-flow:column;gap:3px}.heat-cell{width:11px;height:11px;border-radius:2px;background:var(--review)}.bars{display:flex;align-items:flex-end;gap:3px;height:110px}.bar-wrap{flex:1;height:100%;display:flex;align-items:flex-end}.bar{width:100%;background:linear-gradient(180deg,var(--accent),var(--accent-2));border-radius:3px 3px 0 0;min-height:2px}.hist{display:flex;flex-direction:column;gap:7px}.hist-row{display:grid;grid-template-columns:74px 1fr 42px;align-items:center;gap:10px}.hist-track{background:var(--bg-soft);border-radius:999px;height:9px;overflow:hidden}.hist-fill{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2))}.hist-count{text-align:right}.hardest{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.hardest li{display:grid;grid-template-columns:minmax(70px,auto) minmax(70px,auto) 1fr auto;gap:12px;align-items:center;padding-bottom:8px;border-bottom:1px solid var(--line)}.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;margin:0;font-size:.87rem}.kv dt{color:var(--ink-dim)}.kv dd{margin:0}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#060914c2;display:grid;place-items:center;padding:20px;z-index:40;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.modal{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;width:min(430px,100%);display:flex;flex-direction:column;gap:13px;box-shadow:var(--shadow)}.modal--wide{width:min(560px,100%);max-height:86vh;overflow-y:auto}.modal h2{margin:0;font-size:1.1rem}.modal-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:4px}.footer{margin-top:34px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center}@media(max-width:620px){.answers{grid-template-columns:repeat(2,1fr)}.app{padding:18px 14px 44px}.hardest li{grid-template-columns:1fr;gap:3px}}.exam-panel{border-left:3px solid var(--accent)}.exam-panel--ok{border-left-color:var(--review)}.exam-panel--warn{border-left-color:var(--learn)}.exam-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.exam-head h3{margin:0}.exam-metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:12px}.exam-metric{display:flex;flex-direction:column;gap:2px}.exam-metric b{font-size:1.4rem;font-variant-numeric:tabular-nums}.exam-progress{height:7px;border-radius:999px;background:var(--bg-soft);overflow:hidden}.exam-progress-fill{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--review))}.exam-verdict{margin:0;font-size:.9rem}.exam-verdict.ok{color:var(--review)}.exam-verdict.warn{color:var(--learn)}.card-romaji{margin:0;font-size:1.05rem;letter-spacing:.12em;text-transform:uppercase}.card-mnemonic{margin:0;padding:12px 14px;background:#8b7cff21;border:1px solid rgba(139,124,255,.3);border-radius:var(--radius-sm);font-size:.95rem;text-align:left;line-height:1.5}.mnemonic-tag{display:inline-block;margin-right:8px;font-size:.68rem;text-transform:uppercase;letter-spacing:.09em;color:var(--accent-2);font-weight:700}.card-breakdown{margin:0;text-align:left}.quiz{display:flex;flex-direction:column;gap:20px;max-width:620px;margin:0 auto;width:100%}.quiz-top{display:flex;flex-direction:column;gap:8px}.quiz-bar{height:9px;border-radius:999px;background:var(--bg-soft);overflow:hidden}.quiz-bar-fill{display:block;height:100%;background:linear-gradient(90deg,var(--review),var(--accent));transition:width .35s ease}.quiz-meta{display:flex;align-items:center;gap:12px}.quiz-meta .link-btn{margin-left:auto}.streak{font-size:.82rem;color:var(--learn);font-weight:600}.quiz-instruction{margin:0;text-align:center;font-size:.95rem;color:var(--ink-dim)}.quiz-prompt{background:linear-gradient(150deg,var(--panel),var(--panel-2));border:1px solid var(--line);border-radius:20px;padding:34px 24px;text-align:center;box-shadow:var(--shadow)}.quiz-prompt-main{margin:0;font-size:clamp(2.2rem,8vw,3.4rem);font-weight:600;line-height:1.2}.quiz-prompt-sub{margin:10px 0 0;font-size:1.25rem;color:var(--accent);letter-spacing:.04em}.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:11px}.quiz-option{display:flex;align-items:center;gap:11px;min-height:66px;padding:13px 15px;background:var(--panel);border:2px solid var(--line);border-radius:var(--radius);color:var(--ink);font:inherit;text-align:left;cursor:pointer;transition:border-color .15s,transform .12s,background .15s}.quiz-option:hover:not(:disabled){border-color:var(--accent);transform:translateY(-2px)}.quiz-option:disabled{cursor:default}.quiz-option-key{flex:none;width:24px;height:24px;display:grid;place-items:center;border-radius:6px;background:var(--bg-soft);font-size:.74rem;color:var(--ink-dim)}.quiz-option-body{display:flex;flex-direction:column;gap:2px;min-width:0}.quiz-option-text{font-size:1.02rem;font-weight:500;line-height:1.3}.quiz-option-sub{font-size:.8rem;color:var(--ink-dim)}.quiz-option.is-correct{border-color:var(--review);background:#46d39a24}.quiz-option.is-wrong{border-color:var(--danger);background:#ff6b7a24}.quiz-option.is-dim{opacity:.45}.quiz-feedback{display:flex;flex-direction:column;gap:13px;align-items:center;padding:20px;border-radius:var(--radius);border:1px solid var(--line);animation:quiz-rise .22s ease}.quiz-feedback.is-correct{background:#46d39a1a;border-color:#46d39a57}.quiz-feedback.is-wrong{background:#ff6b7a1a;border-color:#ff6b7a57}@keyframes quiz-rise{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.quiz-verdict{margin:0;font-weight:600;font-size:1rem}.quiz-feedback.is-correct .quiz-verdict{color:var(--review)}.quiz-feedback.is-wrong .quiz-verdict{color:var(--danger)}.quiz-reveal{width:100%;text-align:center;display:flex;flex-direction:column;gap:7px;padding-top:12px;border-top:1px solid var(--line)}.quiz-reveal-word{margin:0;font-size:1.9rem;font-weight:600}.quiz-reveal-reading{margin:0;font-size:1.12rem;color:var(--accent)}.quiz-reveal-romaji{margin:0;font-size:.92rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-dim)}.quiz-reveal-meaning{margin:0;font-size:1.08rem}.quiz-reveal-hook{margin:6px 0 0;padding:11px 13px;text-align:left;background:#8b7cff21;border:1px solid rgba(139,124,255,.3);border-radius:var(--radius-sm);font-size:.9rem;line-height:1.5}.quiz-reveal-example{margin:0;font-size:.92rem;color:var(--ink-dim)}.quiz-next{width:100%}.quiz-hint{text-align:center}.quick-add-head{display:flex;align-items:center;gap:12px}.quick-add-head h3{margin:0}.quick-add-head select{width:auto;margin-left:auto}.quick-add-row{display:grid;grid-template-columns:1.1fr 1.1fr 1.3fr auto;gap:9px}@media(max-width:620px){.quiz-options,.quick-add-row{grid-template-columns:1fr}}.learned-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(148px,1fr));gap:12px}.stat-tile--accent .stat-value{color:var(--accent)}.stat-tile--mature .stat-value{color:#2f9d74}.stat-tile--young .stat-value{color:var(--review)}.stat-tile--learn .stat-value{color:var(--learn)}.learned-deck-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}.learned-deck{width:100%;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 14px;align-items:baseline;padding:11px 14px;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-sm);color:inherit;font:inherit;text-align:left;cursor:pointer;transition:border-color .15s}.learned-deck:hover{border-color:var(--accent)}.learned-deck.is-active{border-color:var(--accent);background:#2dd4bf1f}.learned-deck-name{font-weight:600}.learned-deck-count{justify-self:end;font-size:.82rem;color:var(--ink-dim)}.learned-deck-count b{color:var(--accent);font-size:1.05rem}.learned-deck-split{grid-column:1 / -1}.deck-learned{color:var(--accent);font-weight:600}.stage-filter{display:flex;flex-wrap:wrap;gap:7px}.stage-pill{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);background:var(--panel);color:var(--ink-dim);padding:7px 13px;border-radius:999px;cursor:pointer;font:inherit;font-size:.84rem;transition:border-color .15s,color .15s}.stage-pill:hover{color:var(--ink);border-color:var(--accent)}.stage-pill.is-active{color:var(--ink);border-color:var(--accent);background:var(--panel-2)}.stage-pill-count{font-size:.72rem;font-variant-numeric:tabular-nums;background:var(--bg-soft);border-radius:999px;padding:1px 7px}.stage-pill--mature.is-active{border-color:#2f9d74}.stage-pill--young.is-active{border-color:var(--review)}.stage-pill--learning.is-active{border-color:var(--learn)}.word-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.word-row{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--line);border-radius:var(--radius);overflow:hidden}.word-row--mature{border-left-color:#2f9d74}.word-row--young{border-left-color:var(--review)}.word-row--learning{border-left-color:var(--learn)}.word-row--suspended{border-left-color:#56618a;opacity:.66}.word-main{width:100%;display:grid;grid-template-columns:minmax(140px,1.1fr) minmax(0,1.6fr) 132px 96px;gap:14px;align-items:center;padding:13px 16px;background:none;border:none;color:inherit;font:inherit;text-align:left;cursor:pointer}.word-main:hover{background:var(--panel-2)}.word-lead{display:flex;flex-direction:column;gap:1px;min-width:0}.word-expression{font-size:1.3rem;font-weight:600;line-height:1.25}.word-reading{font-size:.86rem;color:var(--accent)}.word-romaji{font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-dim)}.word-meaning{font-size:.95rem;line-height:1.4}.word-strength{display:flex;flex-direction:column;gap:5px}.word-strength-track{height:7px;border-radius:999px;background:var(--bg-soft);overflow:hidden}.word-strength-fill{display:block;height:100%;background:var(--learn);transition:width .25s}.word-strength-fill.fill--mature{background:#2f9d74}.word-strength-fill.fill--young{background:var(--review)}.word-strength-fill.fill--learning{background:var(--learn)}.word-strength-fill.fill--suspended{background:#56618a}.word-meta{text-align:right;font-variant-numeric:tabular-nums;line-height:1.45}.word-detail{display:flex;flex-direction:column;gap:11px;padding:13px 16px 16px;border-top:1px solid var(--line)}.word-detail-stats{margin:0}.word-example{margin:0;font-size:.95rem}.word-tags{display:flex;flex-wrap:wrap;gap:6px;margin:0}@media(max-width:720px){.word-main{grid-template-columns:1fr auto;gap:6px 12px}.word-meaning{grid-column:1 / -1}.word-strength{grid-column:1 / 2}.word-meta{grid-column:2 / 3;align-self:end}}.quiz-save-error{margin:0;text-align:center;font-size:.9rem;color:var(--danger)}.word-deck{display:block;margin-top:2px}