:root{--bg: #f6f5f1;--surface: #ffffff;--surface-2: #efeee8;--text: #1d1f1e;--muted: #6b706d;--border: #dedcd4;--primary: #1f6f5c;--primary-text: #ffffff;--primary-soft: #dcefe8;--danger: #b3261e;--ok: #1f7a3f;--ok-soft: #dff3e5;--ko: #b3261e;--ko-soft: #fbe3e1;--s-new: #8a8f8c;--s-learning: #c98a12;--s-reviewing: #2f6db3;--s-mastered: #1f7a3f;--s-difficult: #b3261e;--radius: 12px;--shadow: 0 1px 2px rgb(0 0 0 / 6%), 0 2px 8px rgb(0 0 0 / 4%);color-scheme:light}@media (prefers-color-scheme: dark){:root{--bg: #121413;--surface: #1b1e1d;--surface-2: #242826;--text: #e8eae8;--muted: #9aa19d;--border: #2f3432;--primary: #4cb79a;--primary-text: #0d1f1a;--primary-soft: #1d3a32;--danger: #ef7d74;--ok: #5cc985;--ok-soft: #173524;--ko: #ef7d74;--ko-soft: #3d1d1b;--s-new: #8f9692;--s-learning: #e0a63a;--s-reviewing: #6ea6e6;--s-mastered: #5cc985;--s-difficult: #ef7d74;--shadow: none;color-scheme:dark}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 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a.active{background:var(--primary-soft);color:var(--primary);font-weight:600}.user{display:flex;align-items:center;gap:8px}.content{max-width:760px;margin:0 auto;padding:24px 16px 100px}.nav-mobile{display:none}@media (max-width: 720px){.topbar{padding:8px 16px;justify-content:space-between}.nav-desktop{display:none}.nav-mobile{display:flex;position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--border);padding-bottom:env(safe-area-inset-bottom);z-index:10}.nav-mobile a{flex:1;display:flex;flex-direction:column;align-items:center;padding:6px 0;text-decoration:none;color:var(--muted);font-size:1.2rem}.nav-mobile a small{font-size:.7rem}.nav-mobile a.active{color:var(--primary)}.content{padding-top:16px}}.page{display:flex;flex-direction:column;gap:16px}.page h1{margin:0}.page-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}.card>h2:first-child,.card>h3:first-child{margin-top:0}.back{text-decoration:none}.login-page{min-height:100vh;display:grid;place-items:center;padding:16px}.login-card{width:100%;max-width:360px;display:flex;flex-direction:column;gap:12px}.login-card h1{margin:0}label{display:flex;flex-direction:column;gap:4px}.search-form{display:flex;flex-direction:column;gap:12px}.word-input{font-size:1.25rem;padding:12px 14px}.lang-row{display:flex;align-items:flex-end;gap:8px}.lang-row label{flex:1;min-width:0}.swap{padding:0 12px;font-size:1.2rem}.saved-note{margin:0}.word-card h2{font-size:1.75rem;margin:0;overflow-wrap:anywhere}.word-card .meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:4px}.short-def{font-size:1.1rem;margin:12px 0 0}.translations{margin:12px 0 0}.word-card ol,.word-card ul{margin:0;padding-left:20px}.word-card li+li{margin-top:6px}.word-card footer{margin-top:16px}.tag{display:inline-block;font-size:.75rem;padding:2px 8px;border-radius:999px;background:var(--surface-2);color:var(--muted)}.tag-new{margin-left:8px;background:var(--primary-soft);color:var(--primary)}.chips{display:flex;flex-wrap:wrap;gap:6px}.chip{padding:4px 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li.selected{border-color:var(--primary);background:var(--primary-soft)}.word-list a{flex:1;min-width:0;text-decoration:none;color:inherit}.word-line{display:flex;flex-wrap:wrap;align-items:center;gap:4px 8px}.word-line strong{min-width:0;overflow-wrap:anywhere}.word-line .status{margin-left:auto}.selection-bar{position:sticky;bottom:72px;display:flex;justify-content:space-between;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--primary);border-radius:var(--radius);padding:10px 14px;box-shadow:0 4px 16px #00000026}@media (min-width: 721px){.selection-bar{bottom:16px}}.progress-grid{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;margin:0}.progress-grid dt{color:var(--muted)}.progress-grid dd{margin:0}.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.quiz{display:flex;flex-direction:column;gap:12px}.quiz-progress{display:flex;align-items:center;gap:12px}.bar{flex:1;height:6px;background:var(--surface-2);border-radius:999px;overflow:hidden}.bar>div{height:100%;background:var(--primary);transition:width .3s}.quiz-question p{margin:0}.prompt-word{font-size:2rem;font-weight:700;overflow-wrap:anywhere;margin-top:4px!important}.prompt-def{font-size:1.2rem;margin-top:4px!important}.choices{display:flex;flex-direction:column;gap:8px}.choice{text-align:left;padding:14px 16px;line-height:1.4}.choice:not(:disabled):hover{border-color:var(--primary)}.choice.correct{border-color:var(--ok);background:var(--ok-soft);opacity:1}.choice.wrong{border-color:var(--ko);background:var(--ko-soft);opacity:1}.after-answer{display:flex;flex-direction:column;gap:12px}.feedback{font-weight:700;margin:0}.feedback.ok{color:var(--ok)}.feedback.ko{color:var(--ko)}.ratings{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.ratings .rate{flex:1;font-weight:600}.rate.hard{color:var(--s-learning)}.rate.good{color:var(--s-reviewing)}.rate.easy{color:var(--s-mastered)}.result{text-align:center}.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}@media (max-width: 560px){.tiles{grid-template-columns:repeat(2,1fr)}}.tile{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px;display:flex;flex-direction:column}.tile-value{font-size:1.6rem;font-weight:700;font-variant-numeric:tabular-nums}.tile-label{color:var(--muted);font-size:.85rem}.stack-bar{display:flex;gap:2px;height:14px;border-radius:999px;overflow:hidden}.stack-bar .seg{min-width:4px}.legend{list-style:none;padding:0;margin:12px 0 0;display:flex;flex-wrap:wrap;gap:6px 16px;font-size:.9rem}.dot{display:inline-block;width:10px;height:10px;border-radius:50%;vertical-align:middle;margin-right:4px}.ok-dot{background:var(--primary)}.all-dot{background:var(--primary-soft);margin-left:12px}.history{display:flex;align-items:flex-end;gap:2px;height:120px;border-bottom:1px solid var(--border)}.history-col{flex:1;height:100%;display:flex;align-items:flex-end}.history-bar{width:100%;background:var(--primary-soft);border-radius:3px 3px 0 0;display:flex;align-items:flex-end;overflow:hidden}.history-ok{width:100%;background:var(--primary)}.two-cols{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media (max-width: 640px){.two-cols{grid-template-columns:1fr}}table{width:100%;border-collapse:collapse;font-size:.9rem}th,td{text-align:left;padding:6px 4px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600}td:not(:first-child),th:not(:first-child){text-align:right;font-variant-numeric:tabular-nums}.missed{margin:0;padding-left:20px}.settings-form{display:flex;flex-direction:column;gap:16px}fieldset{border:1px solid var(--border);border-radius:8px;display:flex;gap:16px}.radio{flex-direction:row;align-items:center;gap:6px}