*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #3730a3;--primary-hover: #312e81;--bg: #f0f0f0;--surface: #ffffff;--card-bg: #ffffff;--text: #333333;--text-secondary: #64748b;--border: #e2e8f0;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--radius: 12px;--radius-sm: 8px}[data-theme=dark]{--bg: #1a1a1a;--surface: #2e2e2e;--card-bg: #2e2e2e;--text: #e8e8e8;--text-secondary: #e0e0e0;--border: #383838;--shadow-md: 0 2px 12px rgba(0,0,0,.4), 0 1px 3px rgba(0,0,0,.3);--shadow-lg: 0 8px 30px rgba(0,0,0,.5), 0 2px 8px rgba(0,0,0,.3)}html,body{font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,"Apple Color Emoji","Segoe UI Emoji","Noto Color Emoji",Twemoji Mozilla,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100dvh;-webkit-tap-highlight-color:transparent}body{margin:0;display:block}#root{max-width:480px;margin:0 auto;min-height:100dvh}.app{min-height:100dvh;padding-bottom:env(safe-area-inset-bottom,0)}.error-boundary{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--bg)}.error-boundary-card{max-width:420px;width:100%;text-align:center;background:var(--card-bg);border:1px solid var(--border);border-radius:16px;padding:32px 24px}.error-boundary-icon{font-size:40px;line-height:1;margin-bottom:12px}.error-boundary-title{font-size:20px;font-weight:700;color:var(--text);margin:0 0 8px}.error-boundary-body{font-size:14px;color:var(--text-secondary);line-height:1.6;margin:0 0 20px}.error-boundary-detail{margin-top:16px;padding:12px;text-align:left;font-size:11px;white-space:pre-wrap;word-break:break-word;max-height:240px;overflow:auto;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text-secondary)}.sync-badge{position:fixed;left:16px;bottom:16px;z-index:9998;pointer-events:none;display:flex;align-items:center;gap:8px;max-width:calc(100vw - 32px);padding:8px 12px;border-radius:10px;background:var(--card-bg);border:1px solid var(--border);box-shadow:0 4px 14px #0000001f;font-size:12px;color:var(--text)}.sync-badge-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;background:var(--text-secondary)}.sync-badge--syncing .sync-badge-dot{background:var(--primary);animation:sync-pulse 1s ease-in-out infinite}.sync-badge--offline .sync-badge-dot{background:#f59e0b}.sync-badge--error .sync-badge-dot{background:var(--danger)}.sync-badge--pending .sync-badge-dot{background:var(--primary)}@keyframes sync-pulse{0%,to{opacity:1}50%{opacity:.3}}.sync-badge-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sync-badge-retry{flex-shrink:0;pointer-events:auto;padding:3px 10px;border-radius:8px;border:1px solid var(--primary);background:transparent;color:var(--primary);font-size:11px;font-weight:600;cursor:pointer}.sync-badge-retry:active{background:var(--primary);color:#fff}.page-header{display:flex;align-items:center;gap:12px;position:sticky;top:0;z-index:100;background:var(--bg);margin:-16px -16px 20px;padding:12px 16px}.sticky-top{position:sticky;top:0;z-index:100;background:var(--bg);padding-top:16px;margin:-16px -16px 0;padding-left:16px;padding-right:16px}.sticky-top .page-header,.sticky-top .search-bar{margin-bottom:12px}.page-header h1{font-size:1.4rem;font-weight:700;line-height:1.3;display:flex;align-items:center;gap:.5rem}.app-logo{width:32px;height:32px;border-radius:8px;box-shadow:2px 2px 5px #0000002e,-1px -1px 3px #ffffffe6}[data-theme=dark] .app-logo{box-shadow:2px 2px 5px #00000080,-1px -1px 3px #ffffff0f}.auth-logo-img{width:52px;height:52px;border-radius:14px}.header-settings-btn{margin-left:auto;font-size:1.3rem}.header-actions{margin-left:auto;display:flex;align-items:center;gap:4px}.header-actions .btn-icon{font-size:1.3rem}.header-patch-btn{position:relative}.patch-dot{position:absolute;top:3px;right:3px;width:9px;height:9px;border-radius:50%;background:#e11d48;border:2px solid var(--bg)}.search-bar{margin-bottom:16px}.search-input-row{display:flex;align-items:center;gap:8px;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 12px}.search-icon{font-size:.9rem;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:7px;background:linear-gradient(145deg,#fafafa,#eaeaea);box-shadow:2px 2px 5px #0000001f,-1px -1px 3px #fff}[data-theme=dark] .search-icon{background:linear-gradient(145deg,#3e3e3e,#2a2a2a);box-shadow:2px 2px 5px #00000080,-1px -1px 3px #ffffff0f}.search-input{flex:1;border:none;outline:none;background:transparent;color:var(--text);font-size:.95rem;font-family:inherit}.search-mode-select{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font-size:.8rem;padding:4px 6px;font-family:inherit;cursor:pointer}.search-results{margin-bottom:16px}.search-result-deck{font-size:.75rem;color:var(--text-secondary);white-space:nowrap}.settings-subsection-title{font-size:.85rem;font-weight:600;color:var(--text);margin:12px 0 4px}.settings-subsection-title:first-of-type{margin-top:4px}.deck-select-list{max-height:200px;overflow-y:auto;margin-bottom:8px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border:none;border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font-size:.95rem;font-weight:500;cursor:pointer;transition:all .15s;font-family:inherit;box-shadow:0 4px 12px #0000002e,0 1px 3px #0000001a}.btn:active{transform:scale(.97);box-shadow:0 1px 4px #00000024,0 1px 2px #00000014}[data-theme=dark] .btn{box-shadow:0 4px 16px #0000008c,0 1px 4px #0000004d}[data-theme=dark] .btn:active{box-shadow:0 1px 4px #0000004d,0 1px 2px #0003}.btn-primary{background:#333;color:#fff;border-color:#333}.btn-primary:active{background:#111}[data-theme=dark] .btn-primary{background:#9ca3af;border-color:#9ca3af;color:#111}[data-theme=dark] .btn-primary:active{background:#6b7280}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-accent{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-accent:active{filter:brightness(.9)}.btn-accent:disabled{opacity:.5;cursor:not-allowed}.btn-full{width:100%}.btn-large{padding:14px 24px;font-size:1.05rem}.btn-sm{padding:6px 12px;font-size:.85rem}.btn-back{background:none;border:none;color:var(--text);font-size:1rem;cursor:pointer;padding:4px 0;font-family:inherit;font-weight:500}.btn-icon{background:linear-gradient(145deg,#fafafa,#eaeaea);box-shadow:2px 2px 5px #0000001f,-1px -1px 3px #fff;border:none;cursor:pointer;font-size:1.1rem;width:38px;height:38px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;line-height:1;flex-shrink:0}[data-theme=dark] .btn-icon{background:linear-gradient(145deg,#3e3e3e,#2a2a2a);box-shadow:2px 2px 5px #00000080,-1px -1px 3px #ffffff0f}[data-theme=dark] .deck-card,[data-theme=dark] .card-item,[data-theme=dark] .form-card,[data-theme=dark] .analytics-section,[data-theme=dark] .settings-section{box-shadow:0 4px 16px #0000008c,0 1px 4px #0000004d}[data-theme=dark] .study-card-front,[data-theme=dark] .study-card-back{box-shadow:0 8px 30px #00000080,0 2px 8px #0000004d}.input{width:100%;padding:12px;border:none;border-radius:var(--radius-sm);font-size:1rem;font-family:inherit;background:var(--surface);color:var(--text);outline:none;transition:box-shadow .15s;box-shadow:0 4px 12px #0000002e,0 1px 3px #0000001a}.input:focus{box-shadow:0 4px 16px #00000038,0 1px 4px #00000024}[data-theme=dark] .input{box-shadow:0 4px 16px #0000008c,0 1px 4px #0000004d}[data-theme=dark] .input:focus{box-shadow:0 4px 20px #000000a6,0 1px 6px #0006}.textarea{resize:vertical;min-height:60px}.import-textarea{min-height:160px;font-family:monospace;font-size:.85rem;line-height:1.5}.form-card{background:var(--surface);border-radius:var(--radius);padding:16px;margin-bottom:16px;display:flex;flex-direction:column;gap:12px;box-shadow:0 2px 8px #0000001a,0 1px 2px #0000000f}.form-card h3{font-size:1rem;font-weight:600;color:var(--text-secondary)}.form-label{font-size:.85rem;font-weight:500;color:var(--text);display:flex;align-items:center;gap:6px}.required{font-size:.7rem;color:var(--danger);font-weight:600}.form-actions{display:flex;gap:8px;margin-top:4px}.deck-list{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}.deck-group{display:flex;flex-direction:column;gap:8px}.deck-group-title{margin:12px 0 2px;font-size:.85rem;color:var(--text-secondary)}.deck-group-header{margin-top:8px}.deck-group-count{display:inline-block;min-width:1.4em;padding:0 6px;margin-left:4px;border-radius:999px;background:var(--bg, rgba(127,127,127,.15));color:var(--text-secondary);font-size:.78rem;text-align:center}.deck-card{background:var(--surface);border-radius:var(--radius);padding:16px;display:flex;align-items:center;gap:12px;cursor:pointer;transition:all .15s;box-shadow:0 4px 12px #0000002e,0 1px 3px #0000001a}.deck-card:active{transform:scale(.98);background:#f1f5f9}.deck-info{flex:1;min-width:0}.deck-name{font-size:1.05rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.deck-type-badge{font-size:.75rem;color:#111;background:#e5e7eb;padding:2px 8px;border-radius:99px;font-weight:500}.deck-stats{display:flex;flex-direction:column;align-items:flex-end;gap:4px;font-size:.85rem;color:var(--text-secondary)}.deck-actions{display:flex;gap:4px}.deck-edit-row{display:flex;gap:8px;align-items:center;width:100%}.deck-edit-row .input{flex:1}.progress-bar-mini{width:80px;height:6px;background:var(--border);border-radius:3px;position:relative;overflow:hidden}.progress-bar-mini .progress-fill{height:100%;background:var(--success);border-radius:3px;transition:width .3s}.progress-bar-mini .progress-text{position:absolute;right:0;top:-16px;font-size:.7rem;color:var(--text-secondary)}.card-list{margin-top:20px}.card-list h2{font-size:1rem;font-weight:600;color:var(--text-secondary);margin-bottom:12px}.card-item{background:var(--surface);border-radius:var(--radius-sm);padding:12px 16px;margin-bottom:8px;display:flex;align-items:center;gap:12px;cursor:pointer;box-shadow:0 2px 8px #0000001a,0 1px 2px #0000000f;transition:all .15s}.card-item:active{background:#f1f5f9}.card-item-main{flex:1;min-width:0}.card-word{font-weight:600;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text)}.card-meaning{font-size:.85rem;color:var(--text-secondary);display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-meaning-lines{white-space:normal;overflow:visible}.card-meaning-line{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-meaning-line+.card-meaning-line{margin-top:2px}.card-item-actions{display:flex;align-items:center;gap:4px}.card-status{font-size:1.2rem}.progress-section{margin-bottom:20px}.progress-bar{width:100%;height:8px;background:var(--border);border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:var(--success);border-radius:4px;transition:width .3s ease}.progress-label{font-size:.85rem;color:var(--text-secondary);margin-top:6px;text-align:center}.action-buttons{display:flex;flex-direction:column;gap:8px;margin-bottom:12px}.empty-state{text-align:center;padding:40px 20px;color:var(--text-secondary)}.text-secondary{color:var(--text-secondary);font-size:.85rem}.study-page{display:grid;grid-template-rows:auto 1fr auto;height:100dvh;padding:12px 16px 0;box-sizing:border-box;overflow:hidden}.study-content{overflow-y:auto;display:flex;flex-direction:column;min-height:0}.study-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.study-progress{flex:1;display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--text-secondary)}.study-progress .progress-bar{flex:1}.study-edit-btn{flex-shrink:0;width:36px;height:36px;padding:0;border:none;border-radius:var(--radius-sm);background:linear-gradient(145deg,#fafafa,#eaeaea);box-shadow:2px 2px 5px #0000001f,-1px -1px 3px #fff;cursor:pointer;font-size:1.05rem;line-height:1;display:inline-flex;align-items:center;justify-content:center}.study-edit-btn:active{box-shadow:inset 2px 2px 5px #0000002e}.study-edit-btn:disabled{opacity:.4;cursor:default}[data-theme=dark] .study-edit-btn{background:linear-gradient(145deg,#3e3e3e,#2a2a2a);box-shadow:2px 2px 5px #00000080,-1px -1px 3px #ffffff0f}.study-edit-modal{width:100%;max-width:440px;max-height:85dvh;background:var(--surface);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;animation:slideUp .25s ease}.study-edit-body{overflow-y:auto;margin:0 -4px;padding:0 4px}.study-edit-group{margin-bottom:16px}.study-edit-group:last-child{margin-bottom:0}.study-edit-group-title{font-size:.8rem;font-weight:700;color:var(--text-secondary);margin-bottom:6px}.study-edit-actions{display:flex;gap:10px;margin-top:16px}.study-edit-actions .btn{flex:1}.study-card-container{display:flex;align-items:center;justify-content:center;perspective:1000px;padding:24px 0;flex:1}.study-card-drag{width:100%;max-width:400px;aspect-ratio:5 / 3;max-height:240px;position:relative;will-change:transform}.study-card-drag.has-figure{aspect-ratio:auto;max-height:none;height:460px}.study-card{width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .5s cubic-bezier(.4,0,.2,1)}.study-card.flipped{transform:rotateY(180deg)}.study-card.no-transition{transition:none!important}.study-card-front,.study-card-back{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;background:var(--surface);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:0 8px 24px #00000024,0 2px 6px #00000014}.study-card-back{transform:rotateY(180deg)}.study-card.flip-y-left.flipped,.study-card.flip-y-left .study-card-back{transform:rotateY(-180deg)}.study-card.flip-x-up.flipped,.study-card.flip-x-up .study-card-back{transform:rotateX(180deg)}.study-card.flip-x-down.flipped,.study-card.flip-x-down .study-card-back{transform:rotateX(-180deg)}.study-card.flip-none{transform-style:flat}.study-card.flip-none.flipped{transform:none}.study-card.flip-none .study-card-front,.study-card.flip-none .study-card-back{backface-visibility:visible;-webkit-backface-visibility:visible;transition:opacity .3s ease}.study-card.flip-none .study-card-back{transform:none;opacity:0}.study-card.flip-none.flipped .study-card-front{opacity:0}.study-card.flip-none.flipped .study-card-back{opacity:1}.rating-btn.rating-misremembered{background:#f3e8ff;border-color:#c084fc}[data-theme=dark] .rating-btn.rating-misremembered{background:#3b2a4d;border-color:#9333ea}.study-interaction-group{margin-top:10px;padding-top:8px;border-top:1px solid var(--border)}.study-button-help{font-size:.78rem;line-height:1.55;margin:2px 0 10px}.study-button-help b{font-weight:600}.study-button-card{border:1px solid var(--border);border-radius:12px;padding:12px;margin-top:10px;background:var(--bg)}.study-button-card-top{display:flex;align-items:flex-end;gap:10px}.study-button-card .study-button-emoji{width:56px;flex-shrink:0;text-align:center;font-size:1.25rem;padding-left:4px;padding-right:4px}.study-button-field{display:flex;flex-direction:column;gap:4px;min-width:0}.study-button-field>span{font-size:.74rem;color:var(--text-secondary)}.study-button-field .input{width:100%}.study-button-field-outcome{flex:1}.study-button-card .study-button-del{flex-shrink:0;width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center}.study-button-card>.study-button-field{margin-top:10px}.swipe-hint{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;font-size:1.3rem}.swipe-hint-item{display:inline-flex;align-items:center;gap:4px;color:var(--text-secondary)}.study-tap-hint{cursor:pointer;text-align:center;padding:14px}.explanation-section[role=button]{cursor:pointer}.auto-advance-bar{height:4px;margin-top:14px;background:var(--border);border-radius:2px;overflow:hidden}.auto-advance-fill{height:100%;width:0;background:var(--accent);animation:autoAdvanceFill linear forwards}@keyframes autoAdvanceFill{0%{width:0}to{width:100%}}.study-card-drag.armed:after{content:"";position:absolute;inset:-5px;border-radius:calc(var(--radius) + 6px);border:3px solid var(--armed-color, var(--accent));box-shadow:0 0 0 4px color-mix(in srgb,var(--armed-color, var(--accent)) 22%,transparent);pointer-events:none}.study-card-drag.armed-correct{--armed-color: #16a34a}.study-card-drag.armed-partial{--armed-color: #d97706}.study-card-drag.armed-wrong{--armed-color: #dc2626}.study-card-drag.armed-misremembered{--armed-color: #9333ea}.study-card-word{font-size:1.8rem;font-weight:700;text-align:center;word-break:break-word;color:var(--text)}.study-card-pron{font-size:1rem;color:var(--text-secondary);margin-top:8px}.study-card-etymology{font-size:.85rem;color:var(--text-secondary);margin-top:8px;background:#f1f5f9;padding:4px 12px;border-radius:6px}[data-theme=dark] .study-card-etymology{background:#3a3a3a}.study-card-word-small{font-size:1rem;color:var(--text-secondary);margin-bottom:8px}.study-card-meaning{font-size:1.4rem;font-weight:600;text-align:center;word-break:break-word}.explanation-section{background:var(--surface);border-radius:var(--radius);padding:16px;margin:12px 0;display:flex;flex-direction:column;gap:8px;box-shadow:0 1px 3px #0000000f;animation:slideUp .3s ease}.explanation-item{font-size:.9rem;line-height:1.5}.explanation-definition{font-style:italic;color:var(--text-secondary)}.explanation-label{font-weight:600;color:var(--primary);margin-right:4px}[data-theme=dark] .explanation-label{color:#818cf8}.study-buttons{padding:12px 0;padding-bottom:max(12px,env(safe-area-inset-bottom));flex-shrink:0}.study-speak-row{display:flex;justify-content:center;margin-top:12px}.study-speak-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;font-size:1.3rem;border:1px solid var(--border, #ccc);border-radius:999px;background:var(--surface, #fff);color:inherit;cursor:pointer}.study-speak-btn:active{transform:scale(.94)}.study-prompt{text-align:center;font-size:.9rem;color:var(--text-secondary);margin-bottom:12px}.rating-buttons{display:flex;gap:12px;justify-content:center}.rating-btn{width:80px;height:80px;border-radius:50%;border:3px solid var(--border);background:var(--surface);font-size:2rem;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .15s;font-family:"Apple Color Emoji","Segoe UI Emoji","Noto Color Emoji",Twemoji Mozilla,sans-serif;box-shadow:0 4px 12px #0000002e,0 1px 3px #0000001a}.rating-btn:active{transform:scale(.9);box-shadow:0 1px 4px #0000001f,0 1px 2px #00000014}[data-theme=dark] .rating-btn{box-shadow:0 4px 16px #0000008c,0 1px 4px #0000004d}.rating-correct{border-color:var(--success)}.rating-correct:active{background:#dcfce7}.rating-partial{border-color:var(--warning)}.rating-partial:active{background:#fef3c7}.rating-wrong{border-color:var(--danger)}.rating-wrong:active{background:#fee2e2}.study-done{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100dvh;gap:16px;text-align:center}.study-done h1{font-size:1.6rem}.study-retest-badge{display:inline-block;background:var(--warning, #f59e0b);color:#fff;font-size:.7rem;font-weight:700;padding:2px 6px;border-radius:4px;margin-right:6px;vertical-align:middle}.btn-review{border-color:var(--warning, #f59e0b);color:var(--warning, #f59e0b)}.preview-list{display:flex;flex-direction:column;gap:8px}.preview-item{background:var(--bg);border-radius:var(--radius-sm);padding:10px 12px;border:1px solid var(--border)}.import-sticky-footer{position:sticky;bottom:0;background:var(--bg);padding:12px 0 16px;margin-top:8px}.preview-word{font-weight:600;font-size:1rem}.preview-pron{font-size:.8rem;color:var(--text-secondary)}.preview-meaning{font-size:.9rem;margin-top:4px}.preview-detail{font-size:.8rem;color:var(--text-secondary)}.analytics-deck-name{font-size:1.1rem;font-weight:600;margin-bottom:20px}.analytics-summary{display:flex;justify-content:center;gap:40px;margin-bottom:24px}.analytics-total{display:flex;flex-direction:column;align-items:center;gap:2px}.analytics-total-num{font-size:2.4rem;font-weight:700;color:var(--primary)}.analytics-total-label{font-size:.85rem;color:var(--text-secondary)}.analytics-section{background:var(--surface);border-radius:var(--radius);padding:16px;margin-bottom:16px;box-shadow:0 2px 8px #0000001a,0 1px 2px #0000000f}.analytics-section-title{font-size:1rem;font-weight:600;margin-bottom:12px}.analytics-section-desc{font-size:.8rem;color:var(--text-secondary);margin-bottom:12px}.analytics-bars{display:flex;flex-direction:column;gap:12px}.analytics-bar-row{display:flex;align-items:center;gap:8px}.analytics-bar-label{width:80px;font-size:.85rem;font-weight:500;flex-shrink:0}.analytics-bar-track{flex:1;height:12px;background:var(--border);border-radius:6px;overflow:hidden}.analytics-bar-fill{height:100%;border-radius:6px;transition:width .4s ease;min-width:2px}.analytics-bar-correct{background:var(--success)}.analytics-bar-partial{background:var(--warning)}.analytics-bar-wrong{background:var(--danger)}.analytics-bar-value{font-size:.8rem;color:var(--text-secondary);flex-shrink:0;min-width:70px;text-align:right}.analytics-genre-row{cursor:pointer;padding:4px 2px;border-radius:6px}.analytics-genre-row[aria-disabled=true]{cursor:default;opacity:.5}.analytics-card-detail-list{display:flex;flex-direction:column;gap:6px;margin-top:8px}.analytics-card-detail{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 10px;background:var(--bg);border-radius:8px}.analytics-card-detail-word{font-size:.9rem;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.analytics-card-detail-status{display:flex;align-items:center;gap:8px;flex-shrink:0;font-size:.8rem}.analytics-last3{letter-spacing:1px}.analytics-highlight{display:flex;align-items:baseline;gap:4px}.analytics-highlight-num{font-size:2rem;font-weight:700;color:var(--danger)}.analytics-highlight-label{font-size:.9rem;color:var(--text-secondary)}.analytics-status-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.analytics-status-item{display:flex;flex-direction:column;align-items:center;padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm)}.analytics-status-num{font-size:1.5rem;font-weight:700}.analytics-status-label{font-size:.8rem;color:var(--text-secondary)}.analytics-forecast{display:flex;gap:4px;align-items:flex-end;height:120px;margin-top:12px}.analytics-forecast-day{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;height:100%}.analytics-forecast--scroll{overflow-x:auto;overflow-y:hidden;padding-bottom:4px}.analytics-forecast--scroll .analytics-forecast-day{flex:0 0 auto;width:38px}.analytics-forecast-bar-wrapper{flex:1;width:100%;display:flex;align-items:flex-end;justify-content:center}.analytics-forecast-bar{width:70%;background:var(--primary);border-radius:3px 3px 0 0;min-height:0;transition:height .3s}.analytics-forecast-count{font-size:.8rem;font-weight:600}.analytics-forecast-label{font-size:.65rem;color:var(--text-secondary);white-space:nowrap}.misremembered-list{margin-top:8px;display:flex;flex-direction:column;gap:6px}.misremembered-item{background:#fef2f2;border:1px solid #fecaca;border-radius:var(--radius-sm);padding:10px 12px;cursor:pointer;transition:all .15s}.misremembered-item:active{background:#fee2e2}.misremembered-word{font-weight:600;display:block}.misremembered-word{color:#991b1b}.misremembered-meaning{font-size:.85rem;color:#b91c1c;display:block;margin-top:2px}[data-theme=dark] .misremembered-item{background:#dc262624;border-color:#f8717166}[data-theme=dark] .misremembered-item:active{background:#dc26263d}[data-theme=dark] .misremembered-word{color:#fecaca}[data-theme=dark] .misremembered-meaning{color:#fca5a5}.settings-section{background:var(--card-bg);border-radius:12px;padding:1.2rem;margin-bottom:1rem;border:1px solid var(--border);box-shadow:0 2px 8px #0000001a,0 1px 2px #0000000f}.settings-section-title{font-size:1.1rem;font-weight:600;margin:0 0 .5rem}.settings-group-title{font-size:1.25rem;font-weight:700;color:var(--text);text-transform:uppercase;letter-spacing:.05em;margin:1.5rem 0 .5rem;padding-bottom:.3rem;border-bottom:1px solid var(--border)}.settings-group-title:first-of-type{margin-top:0}.settings-number-input{width:70px;padding:4px 8px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:.9rem;font-family:inherit;text-align:center}.settings-description{font-size:.85rem;color:var(--text-secondary);margin:0 0 .8rem;line-height:1.5}.settings-warning{color:var(--danger);font-weight:500}.settings-toggle-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--border);cursor:pointer;font-size:.95rem}.settings-toggle-row:last-child{border-bottom:none}.settings-toggle-row input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:var(--primary)}.settings-side-select{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:.9rem;padding:4px 8px;cursor:pointer;font-family:inherit}.settings-filter-buttons{display:flex;gap:.4rem;margin-bottom:.8rem;flex-wrap:wrap}.btn-small{padding:.3rem .7rem!important;font-size:.8rem!important}.settings-markdown-area{width:100%;box-sizing:border-box;font-family:SF Mono,Fira Code,monospace;font-size:.75rem;padding:.8rem;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text);resize:vertical;margin-bottom:.6rem;line-height:1.4}.settings-empty{font-size:.85rem;color:var(--text-secondary);text-align:center;padding:1rem 0}.emoji-icon{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:8px;background:linear-gradient(145deg,#fafafa,#eaeaea);box-shadow:2px 2px 5px #0000001f,-1px -1px 3px #fff;font-size:.95rem;flex-shrink:0;vertical-align:middle}[data-theme=dark] .emoji-icon{background:linear-gradient(145deg,#3e3e3e,#2a2a2a);box-shadow:2px 2px 5px #00000080,-1px -1px 3px #ffffff0f}.icon-variant-accordion{margin-top:12px}.tutorial-stamp{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:999px;background:#ef4444;color:#fff;font-size:.8rem;font-weight:700;white-space:nowrap;box-shadow:0 4px 12px #ef444466;animation:tutorial-bounce 1.1s ease-in-out infinite}.tutorial-stamp-hand{font-size:.95rem}@keyframes tutorial-bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-5px)}}.deck-card{position:relative}.tutorial-stamp-deck{position:absolute;top:-10px;right:12px;z-index:2}.tutorial-stamp-inline{margin-top:8px;align-self:center}.tutorial-highlight{outline:3px solid #ef4444;outline-offset:2px;border-radius:var(--radius);animation:tutorial-glow 1.1s ease-in-out infinite}@keyframes tutorial-glow{0%,to{outline-color:#ef44448c}50%{outline-color:#ef4444}}.tutorial-complete-emoji{font-size:3rem;text-align:center}.settings-section-title .custom-icon{box-sizing:content-box;padding:5px;margin-right:.4rem;border-radius:8px;background:linear-gradient(145deg,#fafafa,#eaeaea);box-shadow:2px 2px 5px #0000001f,-1px -1px 3px #fff}[data-theme=dark] .settings-section-title .custom-icon{background:linear-gradient(145deg,#3e3e3e,#2a2a2a);box-shadow:2px 2px 5px #00000080,-1px -1px 3px #ffffff0f}.settings-section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:.5rem}.settings-section-header .settings-section-title{margin:0}.btn-info{width:22px;height:22px;border-radius:50%;border:1.5px solid var(--text-secondary);background:none;color:var(--text-secondary);font-size:.75rem;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-family:inherit;line-height:1}.btn-info:hover{border-color:var(--text);color:var(--text)}.info-modal-overlay{position:fixed;inset:0;background:#00000080;z-index:200;display:flex;align-items:center;justify-content:center;padding:24px;animation:fadeIn .15s ease}.info-modal{width:100%;max-width:400px;background:var(--surface);border-radius:var(--radius);padding:20px;animation:slideUp .25s ease}.info-modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.info-modal-title{font-size:1rem;font-weight:700}.info-modal-close{background:none;border:none;font-size:1rem;cursor:pointer;color:var(--text-secondary);padding:4px;line-height:1}.info-modal-body{font-size:.9rem;color:var(--text-secondary);line-height:1.6;white-space:pre-line}.form-label-row{display:flex;align-items:center;gap:6px}.level-row{margin-top:6px}.level-row-name{display:block;font-size:.8rem;font-weight:600;color:var(--text-secondary, #888);margin-bottom:3px}.theme-button-group{display:flex;gap:8px}.theme-btn{flex:1;font-size:.9rem}.theme-btn-active{background:#111;color:#fff;border-color:#111}.btn-danger{background:var(--danger)!important;color:#fff!important;border:none!important}.btn-danger:hover{opacity:.9}.btn-danger:disabled{opacity:.5;cursor:not-allowed}.config-section{background:var(--surface);border-radius:var(--radius-sm);padding:12px;display:flex;flex-direction:column;gap:8px}.config-section h4{font-size:.9rem;font-weight:600;color:var(--text);margin:0}.config-toggle-btn{background:none;border:none;width:100%;display:flex;align-items:center;justify-content:space-between;padding:0;cursor:pointer;font-family:inherit;font-size:.9rem;font-weight:600;color:var(--text)}.toggle-arrow{font-size:.75rem;color:var(--text)}.config-toggle-row{display:flex;align-items:center;justify-content:space-between;padding:6px 0;border-bottom:1px solid var(--border);cursor:pointer;font-size:.9rem;color:var(--text)}.config-toggle-row:last-child{border-bottom:none}.config-toggle-row input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:var(--primary)}.take-choice-row{justify-content:flex-start;gap:10px;padding:10px 8px;border-radius:8px}.take-choice-row input[type=radio],.take-choice-row input[type=checkbox]{width:22px;height:22px;flex:0 0 auto;cursor:pointer;accent-color:var(--primary)}.take-choice-row>span:not(.choice-mark){flex:1 1 auto}.take-choice-row.selected{background:var(--surface-2, rgba(127,127,127,.08))}.take-choice-row.choice-correct{background:#2ea04324;box-shadow:inset 3px 0 #2ea043}.take-choice-row.choice-wrong{background:#f8514924;box-shadow:inset 3px 0 #f85149}.choice-mark{font-weight:700}.take-choice-row.choice-correct .choice-mark{color:#2ea043}.take-choice-row.choice-wrong .choice-mark{color:#f85149}.take-progress{margin-bottom:10px}.take-progress-bar{height:6px;border-radius:3px;background:var(--surface-2, rgba(127,127,127,.15));overflow:hidden;margin-bottom:4px}.take-progress-fill{height:100%;background:var(--primary);transition:width .2s ease}.import-settings-title{font-size:1rem;font-weight:600;margin:0 0 4px}.import-settings-list{display:flex;flex-direction:column}.import-optional-group{margin-bottom:8px}.import-optional-group-label{font-size:.74rem;font-weight:600;margin:6px 0 2px}.import-extra-cols{display:flex;flex-direction:column;gap:6px;margin-top:10px;padding-top:10px;border-top:1px solid var(--border)}.import-extra-col-row{display:flex;align-items:center;gap:6px}.import-extra-col-row .input{flex:1}.btn-icon-sm{flex:0 0 auto;width:30px;height:30px;border:1px solid var(--border);background:var(--surface);border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;line-height:1}.import-example{margin:0 0 12px}.import-example-label{display:block;font-size:.78rem;color:var(--text-secondary);margin-bottom:5px}.import-example-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}.import-example-table{border-collapse:collapse;font-size:.78rem;white-space:nowrap}.import-example-table th,.import-example-table td{border:1px solid var(--border);padding:4px 9px;text-align:left}.import-example-table th{background:var(--surface);font-weight:600}.import-example-table td{color:var(--text-secondary)}.term-preview{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px;margin-top:4px}.term-preview-row{display:flex;gap:4px;flex-wrap:wrap}.term-preview-col{flex:1;min-width:60px;padding:8px;border-radius:6px;font-size:.8rem;font-weight:500;text-align:center;background:var(--border);display:flex;flex-direction:column;gap:2px}.term-preview-col small{font-size:.65rem;font-weight:600}.term-preview-col.question-col{background:#dbeafe;color:#1d4ed8}.term-preview-col.answer-col{background:#dcfce7;color:#16a34a}.term-preview-col.explanation-col{background:#fef3c7;color:#b45309}.study-card-term-field{display:flex;flex-direction:column;align-items:center;align-self:stretch;gap:2px;margin-bottom:8px}.study-card-term-label{font-size:.7rem;color:var(--text-secondary);font-weight:500}.study-card-term-value{font-size:1.2rem;font-weight:600;text-align:center;align-self:stretch;word-break:break-word}.study-card-front .study-card-term-field:first-child .study-card-term-value{font-size:1.6rem}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg);padding:16px}.auth-card{background:var(--surface);border-radius:var(--radius);padding:32px 24px;width:100%;max-width:380px;box-shadow:0 4px 24px #0000001f,0 1px 4px #00000014}.auth-header{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:24px}.auth-logo{font-size:2rem}.auth-title{font-size:1.6rem;font-weight:700;color:var(--text)}.auth-tabs{display:flex;background:var(--bg);border-radius:var(--radius-sm);padding:4px;margin-bottom:24px}.auth-tab{flex:1;padding:8px;border:none;background:none;border-radius:6px;font-size:.9rem;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:all .15s}.auth-tab.active{background:var(--surface);color:var(--text);font-weight:600;box-shadow:0 1px 4px #0000001f}.auth-form{display:flex;flex-direction:column;gap:16px}.auth-field{display:flex;flex-direction:column;gap:6px}.auth-error{color:var(--danger);font-size:.85rem;margin:0}.auth-message{color:var(--success);font-size:.85rem;margin:0}.auth-submit{width:100%;padding:12px;font-size:1rem;margin-top:4px}.app-loading{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--bg);gap:12px;color:var(--text-secondary)}.app-loading-icon{font-size:2.5rem;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.offline-help-backdrop{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:16px;animation:fadeIn .15s ease-out}.offline-help-card{background:var(--surface);border-radius:16px;padding:24px;max-width:420px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:0 20px 50px #0000004d;animation:slideUp .2s ease-out}.offline-help-card h2{margin:0 0 12px;color:var(--text);font-size:1.25rem}.offline-help-card p{color:var(--text);margin:0 0 16px}.offline-help-card ul{list-style:none;padding:0;margin:0 0 20px;display:flex;flex-direction:column;gap:10px}.offline-help-card li{color:var(--text);font-size:.92rem;line-height:1.5;padding:10px 12px;background:var(--bg);border-radius:10px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.patch-notes-backdrop{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:16px;animation:fadeIn .15s ease-out}.patch-notes-card{background:var(--surface);border-radius:16px;padding:20px;max-width:460px;width:100%;max-height:88vh;display:flex;flex-direction:column;box-shadow:0 20px 50px #0000004d;animation:slideUp .2s ease-out}.patch-notes-head{display:flex;align-items:center;gap:8px;margin-bottom:12px}.patch-notes-head h2{margin:0;font-size:1.2rem;color:var(--text)}.patch-notes-close{margin-left:auto;font-size:1rem;color:var(--text-secondary)}.patch-notes-body{overflow-y:auto;flex:1}.patch-entry-head{display:flex;align-items:baseline;gap:10px;margin-bottom:6px}.patch-version{font-weight:700;font-size:1.05rem;color:var(--text)}.patch-date{font-size:.8rem;color:var(--text-secondary)}.patch-section{margin-top:12px}.patch-section h3{margin:0 0 8px;font-size:.95rem;color:var(--text)}.patch-section ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.patch-section li{color:var(--text);font-size:.9rem;line-height:1.5;padding:9px 12px;background:var(--bg);border-radius:10px}.patch-ps{margin-top:16px;padding:14px;border-radius:12px;background:var(--bg);border:1px dashed var(--border);color:var(--text);font-size:.88rem;line-height:1.7;white-space:pre-wrap}.patch-notes-ok{margin-top:16px;width:100%}.file-import-section{margin-top:16px}.file-import-divider{display:flex;align-items:center;gap:12px;margin:16px 0 12px;color:var(--text-secondary);font-size:.85rem}.file-import-divider:before,.file-import-divider:after{content:"";flex:1;height:1px;background:var(--border)}.file-import-btn{background:var(--surface);color:var(--text);border:1px dashed var(--border)}.file-import-btn:hover{background:var(--bg)}.file-import-hint{font-size:.8rem;color:var(--text-secondary);text-align:center;margin:8px 0 0}.file-import-error{color:#dc2626;font-size:.85rem;margin:8px 0 0;text-align:center}[data-theme=dark] .file-import-error{color:#fca5a5}.analytics-streak-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.analytics-streak-item{background:var(--bg);border-radius:12px;padding:16px;display:flex;flex-direction:column;align-items:center;gap:4px}.analytics-streak-num{font-size:1.6rem;font-weight:700;color:var(--text)}.analytics-streak-label{font-size:.8rem;color:var(--text-secondary)}.home-streak-grid{margin:12px 0 4px}.home-streak-grid .analytics-streak-item{background:var(--surface, var(--bg));border:1px solid var(--border);padding:12px}.home-streak-grid .analytics-streak-num{font-size:1.3rem}.analytics-legend{display:flex;gap:14px;flex-wrap:wrap;font-size:.8rem;color:var(--text-secondary);margin-bottom:12px}.legend-dot{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:4px;vertical-align:middle}.legend-untouched{background:var(--border)}.analytics-group-row{margin-bottom:14px}.analytics-group-head{display:flex;justify-content:space-between;gap:8px;margin-bottom:4px;font-size:.9rem}.analytics-group-name{font-weight:600;color:var(--text)}.analytics-stack{display:flex;height:14px;border-radius:7px;overflow:hidden;background:var(--border)}.analytics-stack>span{display:block;height:100%}.seg-mastered{background:#22c55e}.seg-unmastered{background:#f59e0b}.analytics-overdue{font-size:.85rem;font-weight:600;color:#dc2626;margin:4px 0 8px}[data-theme=dark] .analytics-overdue{color:#fca5a5}.analytics-forecast-note{font-size:.72rem;color:var(--text-secondary);margin:8px 0 0;line-height:1.4}.weak-cards-list{display:flex;flex-direction:column;gap:8px}.weak-card-item{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px;background:var(--bg);border-radius:10px;cursor:pointer;transition:transform .1s}.weak-card-item:hover{transform:translateY(-1px)}.weak-card-text{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}.weak-card-word{font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.weak-card-meaning{font-size:.85rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.weak-card-stat{display:flex;flex-direction:column;align-items:flex-end;gap:2px;flex-shrink:0}.weak-card-rate{font-size:1.1rem;font-weight:700;color:#dc2626}[data-theme=dark] .weak-card-rate{color:#fca5a5}.weak-card-detail{font-size:.75rem;color:var(--text-secondary)}.subject-select-row{display:flex;flex-direction:column;gap:8px}.subject-select-controls{display:flex;gap:8px;align-items:center}.subject-select-controls select{flex:1}.subject-add-row{display:flex;gap:8px;margin-top:8px}.subject-add-row input{flex:1}.subjects-list{display:flex;flex-direction:column;gap:8px;margin-bottom:12px}.subject-item{display:flex;align-items:center;gap:8px;padding:10px 12px;background:var(--bg);border-radius:8px}.subject-item-info{flex:1;display:flex;flex-direction:column;gap:2px;min-width:0}.subject-name{color:var(--text);font-weight:500;display:flex;align-items:center;gap:6px}.subject-default-badge{font-size:.7rem;background:var(--accent, #4f46e5);color:#fff;padding:2px 6px;border-radius:6px;font-weight:600}.subject-count{font-size:.75rem;color:var(--text-secondary)}.taxonomy-block{display:flex;flex-direction:column;gap:6px}.taxonomy-values{margin-left:12px;padding:10px 12px;background:var(--bg);border-radius:8px;display:flex;flex-direction:column;gap:6px}.taxonomy-value-item{display:flex;align-items:center;gap:8px;padding:6px 10px;background:var(--surface);border-radius:6px}.taxonomy-value-text{flex:1;color:var(--text);font-size:.9rem}.category-accordion-content{margin-top:10px;padding-top:10px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:8px}.category-setup-section{display:flex;flex-direction:column;gap:8px;padding:10px 12px;background:var(--bg);border-radius:8px}.category-detail-section{display:flex;flex-direction:column;gap:8px;padding:10px;background:var(--surface);border-radius:6px}.global-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}.global-action-btn{background:var(--surface);color:var(--text);border-color:var(--surface);font-weight:600;box-shadow:0 4px 12px #0000002e,0 1px 3px #0000001a}.global-action-btn:active{transform:scale(.98);background:#f1f5f9}[data-theme=dark] .global-action-btn:active{background:#2a2a2a}.subject-modal{max-width:480px}.subject-modal-list{display:flex;flex-direction:column;gap:8px;margin-bottom:20px;max-height:50vh;overflow-y:auto}.subject-modal-section-title{font-size:.85rem;font-weight:600;opacity:.6;margin:4px 0 8px}.subject-modal-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;background:var(--bg);border:none;border-radius:10px;cursor:pointer;text-align:left;font-family:inherit;transition:transform .1s}.subject-modal-item:not(:disabled):hover{transform:translateY(-1px)}.subject-modal-item:disabled{opacity:.4;cursor:not-allowed}.subject-modal-item-info{flex:1;display:flex;flex-direction:column;gap:4px;min-width:0}.subject-modal-name{font-size:1rem;font-weight:600;color:var(--text);display:flex;align-items:center;gap:6px}.subject-modal-count{font-size:.8rem;color:var(--text-secondary)}.subject-modal-arrow{color:var(--text-secondary);font-size:1.4rem;font-weight:300}.quiz-question{background:var(--surface);border-radius:16px;padding:32px 24px;margin-bottom:24px;text-align:center;box-shadow:0 4px 16px #0000001f}.quiz-question-label{font-size:.75rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px}.quiz-question-text{font-size:1.5rem;font-weight:700;color:var(--text);line-height:1.4;word-break:break-word}.quiz-choices{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}.quiz-choice{display:flex;align-items:center;gap:12px;padding:16px 18px;background:var(--surface);border:2px solid transparent;border-radius:12px;cursor:pointer;text-align:left;font-family:inherit;font-size:1rem;color:var(--text);transition:all .15s;box-shadow:0 2px 8px #00000014}.quiz-choice:not(:disabled):hover{transform:translateY(-1px);box-shadow:0 4px 12px #0000001f}.quiz-choice:disabled{cursor:default}.quiz-choice-num{width:28px;height:28px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;background:var(--bg);border-radius:50%;font-weight:600;font-size:.85rem;color:var(--text-secondary)}.quiz-choice-text{flex:1;word-break:break-word}.quiz-choice-mark{font-size:1.4rem;font-weight:700;flex-shrink:0}.quiz-choice-correct{background:#d1fae5;border-color:#10b981;color:#064e3b}.quiz-choice-correct .quiz-choice-num{background:#10b981;color:#fff}.quiz-choice-correct .quiz-choice-mark{color:#059669}.quiz-choice-wrong{background:#fee2e2;border-color:#ef4444;color:#7f1d1d}.quiz-choice-wrong .quiz-choice-num{background:#ef4444;color:#fff}.quiz-choice-wrong .quiz-choice-mark{color:#dc2626}.quiz-choice-faded{opacity:.5}[data-theme=dark] .quiz-choice-correct{background:#10b98133;color:#6ee7b7}[data-theme=dark] .quiz-choice-wrong{background:#ef444433;color:#fca5a5}.quiz-result{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 24px;background:var(--surface);border-radius:16px;margin-bottom:20px}.quiz-result-score{font-size:3rem;font-weight:700;color:var(--text)}.quiz-result-percent{font-size:1.4rem;color:var(--text-secondary);margin-top:8px}.quiz-result-actions{display:flex;flex-direction:column;gap:10px;margin-top:16px}.quiz-result-wrong{font-size:.95rem;color:var(--text-secondary);margin-top:8px}.card-mastered-check{margin-left:2px;filter:drop-shadow(0 1px 2px rgba(16,185,129,.4))}.quiz-choice-unknown{margin-top:6px;background:transparent;border:2px dashed var(--border);box-shadow:none;color:var(--text-secondary)}.quiz-choice-unknown:not(:disabled):hover{background:var(--bg);transform:none}.quiz-choice-unknown .quiz-choice-num{background:var(--bg);color:var(--text-secondary)}.detail-column-list{display:flex;flex-direction:column;gap:12px;margin:12px 0}.detail-column-item{background:var(--bg);border-radius:10px;padding:12px;display:flex;flex-direction:column;gap:8px}.detail-column-header{display:flex;align-items:center;gap:8px}.detail-column-num{font-weight:600;color:var(--text-secondary);margin-right:auto;font-size:.85rem}.detail-side-buttons{display:flex;gap:6px}.detail-side-buttons .btn{flex:1;font-size:.8rem;padding:6px 0}.progress-direction-label{font-size:.8rem;color:var(--text-secondary);margin-bottom:4px}.progress-both-directions{display:flex;gap:12px;justify-content:space-between;margin-top:6px;font-size:.75rem;color:var(--text-secondary)}.flip-direction-info{font-size:.9rem;color:var(--text);padding:8px 12px;background:var(--bg);border-radius:8px;margin-bottom:8px}.dev-time-panel{position:fixed;right:16px;bottom:16px;z-index:9999;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,"Apple Color Emoji","Segoe UI Emoji","Noto Color Emoji",sans-serif}.dev-time-fab{width:48px;height:48px;border-radius:50%;background:#f59e0b;color:#fff;border:none;cursor:pointer;font-size:1.3rem;box-shadow:0 6px 16px #f59e0b66;position:relative}.dev-time-fab:hover{background:#d97706}.dev-time-badge{position:absolute;top:-4px;right:-4px;background:#dc2626;color:#fff;font-size:.65rem;font-weight:700;padding:2px 6px;border-radius:8px;min-width:18px;text-align:center}.dev-time-panel.expanded{background:#1f2937;color:#fff;border-radius:12px;padding:14px 16px;width:280px;box-shadow:0 12px 32px #0006}.dev-time-header{display:flex;align-items:center;justify-content:space-between;font-size:.85rem;font-weight:600;margin-bottom:8px;color:#fbbf24}.dev-time-close{background:transparent;border:none;color:#9ca3af;cursor:pointer;font-size:1.2rem;padding:0 4px}.dev-time-current{font-size:.85rem;color:#e5e7eb;margin-bottom:10px;padding:6px 10px;background:#ffffff0f;border-radius:6px}.dev-time-buttons{display:flex;gap:4px;margin-bottom:6px;flex-wrap:wrap}.dev-time-buttons button{flex:1;min-width:44px;padding:6px 4px;background:#374151;color:#fff;border:none;border-radius:6px;font-size:.75rem;cursor:pointer;font-family:inherit}.dev-time-buttons button:hover{background:#4b5563}.dev-time-buttons button.dev-time-reset{background:#dc2626}.dev-time-buttons button.dev-time-reset:hover{background:#b91c1c}.dev-time-hint{font-size:.7rem;color:#9ca3af;margin:6px 0 0;line-height:1.4}.custom-intervals-editor{display:flex;flex-direction:column;gap:16px;margin-top:8px}.custom-interval-section{padding:12px;background:var(--bg);border-radius:10px}.custom-interval-section-title{font-weight:600;color:var(--text);margin-bottom:4px}.custom-interval-desc{font-size:.75rem;color:var(--text-secondary);margin-bottom:10px}.custom-interval-list{display:flex;flex-direction:column;gap:6px}.custom-interval-row{display:flex;align-items:center;gap:6px;padding:6px 8px;background:var(--surface);border-radius:8px}.custom-interval-num{font-size:.8rem;color:var(--text-secondary);font-weight:600;min-width:48px}.custom-interval-value{width:70px;padding:6px 8px;border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--text);font-size:.9rem;text-align:right}.custom-interval-unit{padding:6px 8px;border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--text);font-size:.85rem;cursor:pointer}.custom-interval-add{margin-top:8px;width:100%}.custom-matrix-warning{background:#f59e0b26;color:#92400e;padding:8px 12px;border-radius:8px;font-size:.8rem;margin-bottom:10px}[data-theme=dark] .custom-matrix-warning{background:#f59e0b33;color:#fbbf24}.custom-matrix-table{width:100%;border-collapse:separate;border-spacing:4px;table-layout:fixed;font-size:.85rem}.custom-matrix-table th,.custom-matrix-table td{padding:6px 4px;text-align:center;background:var(--bg);border-radius:6px}.custom-matrix-axis{background:transparent!important;font-size:.7rem;color:var(--text-secondary);font-weight:500}.custom-matrix-colhead,.custom-matrix-rowhead{font-size:1.05rem;font-weight:600;background:var(--surface)!important}.custom-matrix-sub{font-size:.65rem;color:var(--text-secondary);margin-top:2px}.custom-matrix-cell{vertical-align:middle;min-width:0}.custom-matrix-cell-content{display:flex;flex-direction:column;gap:3px;align-items:center;position:relative}.custom-matrix-input{width:100%;max-width:50px;padding:4px;border:1px solid var(--border);border-radius:4px;background:var(--surface);color:var(--text);font-size:.8rem;text-align:right}.custom-matrix-unit{width:100%;padding:3px;border:1px solid var(--border);border-radius:4px;background:var(--surface);color:var(--text);font-size:.7rem;cursor:pointer}.custom-matrix-clear{position:absolute;top:-4px;right:-4px;width:16px;height:16px;border-radius:50%;background:var(--text-secondary);color:#fff;border:none;font-size:.7rem;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;line-height:1}.custom-matrix-set{width:100%;padding:14px 4px;background:transparent;border:1px dashed var(--border);border-radius:6px;color:var(--text-secondary);font-size:.85rem;cursor:pointer}.custom-matrix-set:hover{background:var(--surface);color:var(--text)}.analytics-direction-badge{display:inline-block;margin-left:8px;padding:2px 8px;background:var(--bg);border-radius:6px;font-size:.7rem;color:var(--text-secondary);font-weight:500}.direction-banner{display:flex;align-items:center;justify-content:center;gap:10px;padding:14px 16px;border-radius:12px;margin:0 0 16px;font-size:1.1rem;font-weight:700}.direction-banner-icon{font-size:1.2rem}.direction-banner-text{letter-spacing:.02em}.direction-q2a{background:#1f2937;color:#fff}.direction-a2q{background:#6b7280;color:#fff}.direction-banner-sm{padding:8px 12px;font-size:.95rem;margin-bottom:12px}.deck-detail-name{font-size:1.8rem!important;font-weight:800!important;line-height:1.2!important}.analytics-deck-name-large{font-size:1.6rem;font-weight:800;margin-bottom:12px}.welcome-backdrop{position:fixed;inset:0;background:#0000008c;display:flex;align-items:center;justify-content:center;z-index:1100;padding:16px;animation:fadeIn .2s ease-out}.welcome-card{background:var(--surface);border-radius:20px;padding:28px 24px;max-width:480px;width:100%;max-height:92vh;overflow-y:auto;box-shadow:0 24px 60px #00000059;animation:slideUp .3s ease-out}.welcome-header{text-align:center;margin-bottom:24px}.welcome-logo{width:72px;height:72px;border-radius:18px;margin-bottom:12px;box-shadow:0 4px 16px #0000002e}.welcome-header h1{font-size:1.5rem;font-weight:700;color:var(--text);margin:0}.welcome-subtitle{color:var(--text-secondary);font-size:.95rem;margin:8px 0 0}.welcome-section,.welcome-features{margin-bottom:20px}.welcome-section h2,.welcome-features h2{font-size:1rem;font-weight:700;color:var(--text);margin:0 0 8px}.welcome-section-desc{font-size:.85rem;color:var(--text-secondary);margin:0 0 10px}.welcome-sample-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.welcome-sample-list li{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:var(--bg);border-radius:10px;color:var(--text);font-size:.92rem}.welcome-sample-count{font-size:.8rem;color:var(--text-secondary)}.welcome-features ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:6px}.welcome-features li{font-size:.85rem;color:var(--text);padding:6px 10px;background:var(--bg);border-radius:8px}.welcome-actions{display:flex;flex-direction:column;gap:8px;margin-top:8px}.welcome-hint{text-align:center;font-size:.75rem;color:var(--text-secondary);margin:12px 0 0}.auth-modal-backdrop{position:fixed;inset:0;background:#0000008c;display:flex;align-items:center;justify-content:center;z-index:1100;padding:16px;animation:fadeIn .2s ease-out}.auth-modal-card{background:var(--surface);border-radius:20px;padding:0;max-width:460px;width:100%;max-height:90vh;overflow-y:auto;position:relative;box-shadow:0 24px 60px #00000059;animation:slideUp .3s ease-out}.auth-modal-card .auth-page{min-height:auto;padding:0;background:transparent}.auth-modal-card .auth-card{box-shadow:none;padding:24px}.auth-modal-close{position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:50%;background:var(--bg);color:var(--text-secondary);border:none;cursor:pointer;font-size:1.2rem;z-index:1}.password-input-wrapper{position:relative}.password-input-wrapper .input{padding-right:44px}.password-toggle{position:absolute;right:8px;top:50%;transform:translateY(-50%);width:32px;height:32px;border:none;background:transparent;cursor:pointer;font-size:1.1rem;display:inline-flex;align-items:center;justify-content:center;border-radius:6px;color:var(--text-secondary)}.password-toggle:hover{background:var(--bg)}.auth-forgot-link{background:none;border:none;color:var(--accent, #4f46e5);font-size:.85rem;cursor:pointer;text-align:center;width:100%;padding:8px 0;text-decoration:underline;font-family:inherit;margin-top:4px}.auth-forgot-link:hover{opacity:.8}.recovery-modal-backdrop{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1200;padding:16px;animation:fadeIn .2s ease-out}.recovery-modal-card{background:var(--surface);border-radius:16px;padding:28px 24px;max-width:480px;width:100%;max-height:92vh;overflow-y:auto;box-shadow:0 24px 60px #0006;animation:slideUp .3s ease-out}.recovery-modal-title{font-size:1.2rem;font-weight:700;color:var(--text);margin:0 0 8px}.recovery-modal-desc{font-size:.88rem;color:var(--text-secondary);line-height:1.6;margin:0 0 16px}.recovery-code-display{background:linear-gradient(135deg,#1e293b,#334155);border-radius:10px;padding:20px 16px;text-align:center;margin-bottom:14px}.recovery-code-display code{font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,monospace;font-size:1.4rem;font-weight:700;color:#fbbf24;letter-spacing:.1em;word-break:break-all}.recovery-modal-warning{background:#f59e0b1f;border-left:3px solid #f59e0b;border-radius:6px;padding:10px 12px;font-size:.82rem;color:var(--text);line-height:1.5;margin-bottom:14px}[data-theme=dark] .recovery-modal-warning{background:#f59e0b2e;color:#fbbf24}.recovery-modal-actions{display:flex;flex-direction:column;gap:10px}.recovery-ack-checkbox{display:flex;align-items:center;gap:8px;font-size:.88rem;color:var(--text);padding:8px;cursor:pointer;-webkit-user-select:none;user-select:none}.recovery-ack-checkbox input{width:18px;height:18px;cursor:pointer}.regen-recovery-box{background:var(--bg);border-radius:8px;padding:12px;margin-bottom:8px}.upgrade-modal-overlay{position:fixed;inset:0;background:#0009;z-index:300;display:flex;align-items:center;justify-content:center;padding:20px;animation:fadeIn .15s ease}.upgrade-modal{position:relative;width:100%;max-width:380px;background:var(--surface);border-radius:var(--radius);padding:28px 24px 20px;animation:slideUp .25s ease}.upgrade-modal-close{position:absolute;top:12px;right:14px;background:none;border:none;font-size:1.3rem;cursor:pointer;color:var(--text-secondary);line-height:1;padding:2px 6px}.upgrade-modal-hero{text-align:center;margin-bottom:20px}.upgrade-modal-icon{font-size:2.4rem;display:block;margin-bottom:10px}.upgrade-modal-title{font-size:1.1rem;font-weight:700;margin:0 0 8px}.upgrade-modal-desc{font-size:.85rem;color:var(--text-secondary);line-height:1.55;margin:0}.upgrade-modal-benefits{background:var(--surface-2, rgba(0,0,0,.04));border-radius:10px;padding:12px 14px;margin-bottom:14px;display:flex;flex-direction:column;gap:7px}[data-theme=dark] .upgrade-modal-benefits{background:#ffffff0f}.upgrade-modal-benefit{display:flex;align-items:flex-start;gap:8px;font-size:.875rem}.upgrade-modal-check{color:var(--primary);font-weight:700;flex-shrink:0}.upgrade-modal-need{font-size:.8rem;color:var(--text-secondary);margin-bottom:6px;text-align:center}.upgrade-modal-lock{font-size:.9rem}.upgrade-modal-coming{font-size:.75rem;color:var(--text-secondary);text-align:center;margin:0 0 14px;opacity:.7}.upgrade-modal-cta{margin-top:4px}.ai-import-modal{max-width:520px;max-height:88vh;overflow-y:auto}.ai-pro-note{background:#f59e0b1f;border-radius:8px;padding:8px 12px;font-size:.85rem;margin:8px 0}.ai-field{margin:12px 0}.ai-chip-group{display:flex;flex-wrap:wrap;gap:8px}.ai-chip{padding:6px 14px;border-radius:999px;border:1.5px solid var(--border);background:var(--surface);color:var(--text);font-size:.85rem;cursor:pointer}.ai-chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}.ai-image-inputs{display:flex;gap:8px}.ai-image-inputs .btn{cursor:pointer}.ai-image-previews{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.ai-image-thumb{position:relative;width:72px;height:72px}.ai-image-thumb img{width:100%;height:100%;object-fit:cover;border-radius:8px}.ai-image-thumb button{position:absolute;top:-6px;right:-6px;width:22px;height:22px;border-radius:50%;border:none;background:var(--danger);color:#fff;cursor:pointer;line-height:1}.ai-result-list{display:flex;flex-direction:column;gap:10px;margin:12px 0}.ai-result-item{border:1px solid var(--border);border-radius:8px;padding:10px 12px}.ai-result-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.ai-result-meaning{font-size:.9rem;color:var(--text-secondary)}.ai-loading{display:flex;flex-direction:column;align-items:center;gap:12px;padding:36px 8px 24px;text-align:center}.ai-spinner{width:44px;height:44px;border:4px solid var(--border);border-top-color:#333;border-radius:50%;animation:ai-spin .9s linear infinite}@keyframes ai-spin{to{transform:rotate(360deg)}}.ai-loading-title{font-weight:600;margin:0}.ai-progress{width:100%;height:8px;background:var(--border);border-radius:99px;overflow:hidden}.ai-progress-bar{height:100%;background:#333;border-radius:99px;transition:width .5s ease}.study-card-meaning-line+.study-card-meaning-line{margin-top:4px}.btn.quiz-correct{background:#e8f5e9;border-color:#2e7d32;color:#2e7d32}.btn.quiz-wrong{background:#ffebee;border-color:#c62828;color:#c62828}.settings-hub-list{display:flex;flex-direction:column;gap:.6rem}.settings-hub-item{display:flex;align-items:center;gap:.8rem;width:100%;min-height:60px;padding:.8rem 1rem;background:var(--card-bg);border:1px solid var(--border);border-radius:12px;box-shadow:0 2px 8px #0000001a,0 1px 2px #0000000f;color:var(--text);font-family:inherit;font-size:1rem;text-align:left;cursor:pointer}.settings-hub-item:active{opacity:.7}.settings-hub-icon{font-size:1.5rem;flex-shrink:0;width:2rem;text-align:center}.settings-hub-text{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}.settings-hub-title{font-weight:600;display:flex;align-items:center;gap:6px;flex-wrap:wrap}.settings-hub-desc{font-size:.78rem;color:var(--text-secondary);line-height:1.4}.settings-hub-chevron{font-size:1.3rem;color:var(--text-secondary);flex-shrink:0}.settings-hub-badge{font-size:.68rem;font-weight:600;padding:1px 7px;border-radius:999px;background:var(--surface);border:1px solid var(--border);color:var(--text-secondary);white-space:nowrap}.settings-hub-badge-pro{border-color:#d4a017;color:#b8860b}[data-theme=dark] .settings-hub-badge-pro{border-color:#8a6d1a;color:#d4a948}.settings-stub-row{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.55rem 0;border-bottom:1px dashed var(--border)}.settings-stub-row:last-child{border-bottom:none}.settings-stub-label{color:var(--text-secondary);font-size:.92rem}.settings-hub-group{display:flex;flex-direction:column;gap:.45rem}.settings-hub-children{display:flex;flex-direction:column;gap:.45rem;padding-left:1.4rem}.settings-hub-subitem{min-height:52px;padding:.6rem .9rem}.settings-hub-subitem .settings-hub-icon{font-size:1.25rem}.tutorial-banner{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;gap:.6rem;padding:.45rem .9rem;background:var(--accent, #4a7cff);color:#fff;font-size:.85rem}.tutorial-banner-text{font-weight:600;line-height:1.3}.tutorial-banner-end{flex-shrink:0;background:#ffffff2e;border:1px solid rgba(255,255,255,.55);color:#fff}.tut-page .tutorial-banner{margin:-1rem -1rem 1rem;border-radius:0}.tut-guide{display:flex;gap:.5rem;align-items:flex-start;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:.7rem .9rem;margin-bottom:1rem;font-size:.88rem;line-height:1.5}.tut-guide-icon{flex-shrink:0}.tut-clickable{cursor:pointer}.tut-study-card{background:var(--card-bg);border:1px solid var(--border);border-radius:16px;padding:2rem 1.2rem;margin-bottom:1rem;text-align:center;box-shadow:0 2px 8px #0000001a}.tut-study-answer{margin-top:1rem;padding-top:1rem;border-top:1px dashed var(--border)}.tut-study-meaning{font-size:1.1rem;font-weight:600;margin-bottom:.4rem}.tut-rating-row{display:flex;gap:.5rem}.tut-rating-row .btn{flex:1}.tut-photo-mock{background:#fdf8ee;border:1px solid #d9cdb0;border-radius:8px;padding:.9rem 1rem;margin:.5rem 0 .8rem;color:#3a3a3a;font-size:.9rem;line-height:2;box-shadow:0 2px 6px #0000001f;transform:rotate(-.6deg)}[data-theme=dark] .tut-photo-mock{background:#efe7d4}.tut-photo-circled{border:2px solid #e0443a;border-radius:50%/42%;padding:0 6px;font-weight:600}.tut-status-row{display:flex;gap:.6rem;align-items:flex-start;font-size:.88rem;line-height:1.55;margin-bottom:.6rem}.tut-status-emoji{flex-shrink:0;font-size:1.1rem}.tut-analytics-mock-row{margin-bottom:.4rem}.tut-analytics-mock{display:inline-block;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:.25rem .6rem;font-size:.85rem;letter-spacing:.02em}.tut-note{display:block;width:fit-content;max-width:100%;background:#fff6c8;border:1px solid #e6d588;border-radius:4px;padding:.55rem .8rem;margin:.5rem 0 .8rem;font-size:.84rem;line-height:1.55;color:#4a4220;box-shadow:0 2px 5px #0000001f;transform:rotate(-.4deg);transform-origin:left center}[data-theme=dark] .tut-note{background:#f5e9a8;color:#3a3415}.interaction-preview-wrap{margin-top:12px}.interaction-preview{margin-top:8px}.interaction-preview-card{flex:none;height:190px;max-width:300px;margin:0 auto;padding:8px 0}.interaction-preview-result{display:flex;align-items:center;justify-content:center;gap:12px;font-size:.88rem;padding:8px 0}.analyze-placeholder{border:1px dashed var(--border-color, #ccc);border-radius:8px;padding:20px 12px;margin-top:6px;text-align:center;color:var(--text-secondary, #888);font-size:.85rem}.grammar-note-item,.grammar-reading-item{border:1px solid var(--border-color, #e0e0e0);border-radius:8px;padding:10px 12px;margin-bottom:8px}.grammar-note-head{display:flex;align-items:center;gap:8px}.grammar-note-head .grammar-note-count{margin-left:auto}.srs-badge{font-size:.7rem;font-weight:600;padding:1px 7px;border-radius:10px}.srs-mastered{background:#22c55e33;color:#16a34a}.srs-review{background:#eab30838;color:#ca8a04}.srs-unmastered{background:#ef44442e;color:#dc2626}.srs-new{background:#7f7f7f29;color:var(--text-secondary, #888)}.grammar-note-name{font-weight:600}.grammar-note-count{font-size:.78rem;color:var(--text-secondary, #888);white-space:nowrap}.grammar-note-expl{margin:6px 0 0;font-size:.88rem;color:var(--text-secondary, #666)}.grammar-reading-text{margin:0;font-size:.9rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.reading-notes{margin-top:8px}.grammar-review-card{border:1px solid var(--border-color, #e0e0e0);border-radius:12px;padding:24px 16px;text-align:center;cursor:pointer;min-height:140px;display:flex;flex-direction:column;justify-content:center;gap:10px}.grammar-review-name{font-size:1.25rem;font-weight:700}.grammar-review-expl{margin:0;font-size:.95rem;line-height:1.6;color:var(--text-secondary, #555)}.grammar-reading-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:8px}.svocm-sentence{line-height:2.4;font-size:1.02rem}.svocm-seg{border-radius:4px;padding:1px 3px}.svocm-S{background:#3b82f638}.svocm-V{background:#ef444438}.svocm-O{background:#22c55e38}.svocm-C{background:#eab30840}.svocm-M{background:#a855f72e}.svocm-role{font-size:.6em;font-weight:700;opacity:.65;margin-left:1px}.ann{font-size:.6em;margin-left:2px;padding:0 3px;border-radius:4px;vertical-align:middle;white-space:nowrap}.ann-case{background:#0d94882e;color:#0d9488}.ann-sem{background:#d946ef29;color:#c026d3}.dep-scroll{overflow-x:auto;margin-top:10px;padding-bottom:4px}.dep-content{position:relative;display:inline-block;min-width:100%}.dep-svg{position:absolute;overflow:visible}.dep-arc path{stroke:#0d9488;stroke-width:1.5}.dep-arrow{fill:#0d9488;stroke:none}.dep-tokens{display:flex;gap:14px;white-space:nowrap}.dep-token{display:inline-flex;flex-direction:column;align-items:center;gap:2px}.dep-token-text{font-size:.95rem}.dep-token-case{font-size:.62rem;color:#0d9488}.clause-bracket{font-weight:700;padding:0 1px}.clause-noun{color:#2563eb}.clause-adj{color:#16a34a}.clause-adv{color:#d97706}.svocm-legend{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px;font-size:.72rem;align-items:center}.svocm-legend .svocm-seg{padding:2px 6px}.clause-legend{font-weight:700;padding:2px 6px;border:1px solid currentColor;border-radius:4px}.clause-legend.clause-noun{color:#2563eb}.clause-legend.clause-adj{color:#16a34a}.clause-legend.clause-adv{color:#d97706}.grammar-word-item{display:flex;align-items:baseline;gap:10px;padding:8px 10px;border-bottom:1px solid var(--border-color, #eee)}.grammar-word-surface{font-weight:600;white-space:nowrap}.grammar-word-meaning{color:var(--text-secondary, #666);font-size:.9rem}.word-save-list{margin-top:10px;max-height:50vh;overflow-y:auto}.word-save-item{padding:8px 0;border-bottom:1px solid var(--border-color, #eee)}.word-save-headword{font-weight:700;margin-bottom:4px}.interpret-passage{white-space:pre-wrap;line-height:1.8;font-size:1rem;margin:6px 0 0}.interpret-model{white-space:pre-wrap;line-height:1.7;margin:6px 0 0;padding:10px 12px;border-radius:8px;background:var(--surface-2, rgba(127, 127, 127, .08))}.interpret-yours{white-space:pre-wrap;line-height:1.7;margin:6px 0 0}.interpret-timer{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:6px}.interpret-time{font-size:1.4rem;font-weight:700;font-variant-numeric:tabular-nums}.interpret-time.low{color:#dc2626}.interpret-log-item{padding:10px 0;border-bottom:1px solid var(--border-color, #eee)}.interpret-log-head{display:flex;align-items:center;gap:10px;margin-bottom:6px}.interpret-log-kind{font-weight:600;font-size:.85rem;padding:1px 8px;border-radius:10px;background:var(--surface-2, rgba(127, 127, 127, .12))}.interpret-log-head .btn-sm{margin-left:auto}.interpret-review{white-space:pre-wrap;line-height:1.7;margin:6px 0 0;padding:10px 12px;border-radius:8px;background:#3b82f614}.judge-criteria{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0;font-size:.85rem}.judge-good{color:#16a34a}.judge-bad{color:#dc2626}.interpret-chat{display:flex;flex-direction:column;gap:6px;margin:6px 0}.chat-msg{padding:7px 10px;border-radius:10px;max-width:85%;white-space:pre-wrap;line-height:1.6;font-size:.92rem}.chat-user{align-self:flex-end;background:var(--accent-soft, rgba(99, 102, 241, .18))}.chat-ai{align-self:flex-start;background:var(--surface-2, rgba(127, 127, 127, .1))}.chat-input-row{display:flex;gap:8px;align-items:center;margin-top:6px}.chat-input-row .input{flex:1}.seg-group{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:4px}.seg-btn{flex:1;min-width:80px;padding:8px 12px;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:var(--radius-sm);font-size:.85rem;cursor:pointer;white-space:nowrap;word-break:keep-all}.seg-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.format-badge{font-size:.7rem;color:var(--text-secondary);background:var(--bg);border:1px solid var(--border);padding:1px 8px;border-radius:99px;margin-left:8px;white-space:nowrap}.grade-question{padding:10px 0;border-bottom:1px solid var(--border)}.grade-question:last-child{border-bottom:none}.test-passage{background:var(--surface-2, rgba(127, 127, 127, .06));border-left:3px solid var(--accent, #6b8afd);border-radius:6px;padding:12px 14px;margin:8px 0;white-space:pre-wrap}.grade-prompt{font-weight:500;margin-bottom:6px}.grade-num{color:var(--text-secondary);margin-right:4px}.grade-answer{margin:4px 0;white-space:pre-wrap}.grade-manual{display:flex;align-items:center;gap:8px;margin-top:6px}.grade-points-input{width:90px}.submission-header{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;margin-bottom:8px;font-size:.9rem}.trend-block{margin-top:12px}.trend-block h4{font-size:.85rem;margin:0 0 6px;color:var(--text-secondary)}.trend-row{display:flex;justify-content:space-between;padding:4px 0;border-bottom:1px solid var(--border);font-size:.9rem}.trend-row:last-child{border-bottom:none}.occ-editor{display:flex;flex-direction:column;gap:4px}.occ-toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.occ-canvas{position:relative;width:100%;margin:4px 0;border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;user-select:none;-webkit-user-select:none;background:var(--surface)}.occ-image{display:block;width:100%;height:100%;object-fit:contain;pointer-events:none;-webkit-user-select:none;user-select:none;-webkit-user-drag:none}.occ-region{position:absolute;box-sizing:border-box;border:2px solid var(--primary);touch-action:none}.occ-region.hidden{background:#3b82f673}.occ-region.shown{background:transparent;border-style:dashed}.occ-region.selected{border-color:var(--warning);box-shadow:0 0 0 2px var(--warning);z-index:3}.occ-region.draft{border-style:dashed;opacity:.8;pointer-events:none}.occ-region-no{position:absolute;top:0;left:0;min-width:18px;height:18px;padding:0 4px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;line-height:1;color:#fff;background:var(--primary);border-bottom-right-radius:var(--radius-sm)}.occ-region-handle{position:absolute;right:-8px;bottom:-8px;width:16px;height:16px;border-radius:50%;background:var(--warning);border:2px solid #fff;cursor:nwse-resize;touch-action:none;z-index:4}.occ-list{display:flex;flex-direction:column;gap:8px;margin-top:8px}.occ-list-item{border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px;display:flex;flex-direction:column;gap:6px;background:var(--card-bg)}.occ-list-item.selected{border-color:var(--warning)}.occ-list-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.occ-list-actions{display:flex;flex-wrap:wrap;align-items:center;gap:4px}.photo-method-list{display:flex;flex-direction:column;gap:8px}.photo-method-desc{font-size:.78em;color:var(--text-secondary);margin:2px 0 0}.occ-study-canvas{position:relative;display:inline-block;max-width:100%;max-height:58vh;margin:0 auto;border-radius:var(--radius-sm);overflow:hidden;line-height:0;user-select:none;-webkit-user-select:none;background:var(--surface)}.occ-study-canvas img{display:block;max-width:100%;max-height:58vh;width:auto;height:auto;pointer-events:none}.occ-study-qa-item{padding:4px 0;border-bottom:1px solid var(--border);line-height:1.4}.occ-study-qa-item:last-child{border-bottom:none}.occ-study-mask{position:absolute;box-sizing:border-box;background:var(--surface);border:2px solid var(--primary);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--primary);cursor:pointer;transition:background .15s ease,border-color .15s ease}.occ-study-mask.active{box-shadow:0 0 0 3px var(--warning);border-color:var(--warning);color:var(--warning)}.occ-study-mask.revealed{background:transparent;border-color:var(--success);color:transparent}.occ-study-qa{margin-top:10px;display:flex;flex-direction:column;gap:6px}.sc-detail{width:100%;max-width:440px;max-height:88vh;overflow-y:auto;background:var(--surface);border-radius:var(--radius);padding:18px;animation:slideUp .25s ease}.sc-detail-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}.sc-detail-nav{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:14px}.sc-nav-btn{width:34px;height:34px;flex:0 0 auto;border:1px solid var(--border);background:var(--surface);border-radius:999px;color:var(--text);font-size:1.2rem;line-height:1;cursor:pointer}.sc-nav-btn:disabled{opacity:.35;cursor:default}.sc-detail-period{font-weight:700;font-size:.95rem;text-align:center;flex:1}.sc-stats{display:flex;gap:8px;margin-bottom:12px}.sc-stat{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 4px;background:#80808014;border-radius:var(--radius-sm)}.sc-stat-num{font-size:1.5rem;font-weight:700;line-height:1.1}.sc-stat-label{font-size:.7rem;color:var(--text-secondary);text-align:center}.sc-ratings{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}.sc-rating{display:flex;align-items:center;gap:5px;font-size:.8rem}.sc-rating-dot{width:10px;height:10px;border-radius:50%;flex:0 0 auto}.sc-rating-label{color:var(--text-secondary)}.sc-rating-n{font-weight:700}.sc-month{margin-bottom:14px}.sc-month-wd,.sc-month-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}.sc-month-wd{margin-bottom:4px}.sc-month-wd span{text-align:center;font-size:.62rem;color:var(--text-secondary)}.sc-month-cell{position:relative;aspect-ratio:1;border:none;border-radius:6px;cursor:pointer;padding:0;display:flex;align-items:center;justify-content:center}.sc-month-cell:disabled{cursor:default}.sc-month-cell.out{opacity:.32}.sc-month-cell.today{outline:1.5px solid var(--text);outline-offset:-1px}.sc-month-day{font-size:.66rem;font-weight:600;color:var(--text);text-shadow:0 0 2px var(--surface),0 0 2px var(--surface)}.sc-week{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.sc-week-row{display:flex;align-items:center;gap:8px;border:none;background:none;padding:4px 6px;border-radius:var(--radius-sm);cursor:pointer;width:100%;text-align:left;color:var(--text)}.sc-week-row:not(:disabled):hover{background:#80808014}.sc-week-row:disabled{cursor:default;opacity:.5}.sc-week-row.today{outline:1.5px solid var(--border)}.sc-week-wd{width:28px;font-size:.78rem;color:var(--text-secondary);flex:0 0 auto}.sc-week-date{width:22px;font-size:.82rem;font-weight:600;flex:0 0 auto}.sc-week-bar{flex:1;height:14px;background:#8080801f;border-radius:7px;overflow:hidden}.sc-week-bar>span{display:block;height:100%;border-radius:7px;min-width:2px}.sc-week-n{width:28px;text-align:right;font-size:.82rem;font-weight:600;flex:0 0 auto}.sc-deck{border-top:1px solid var(--border);padding-top:10px}.sc-deck-title{font-size:.78rem;font-weight:700;color:var(--text-secondary);margin-bottom:8px}.sc-deck-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:5px 0;font-size:.85rem}.sc-deck-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sc-deck-n{color:var(--text-secondary);flex:0 0 auto}.sc-empty{text-align:center;color:var(--text-secondary);font-size:.85rem;padding:18px 0}.test-section-group{margin-bottom:14px}.test-section-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:10px 0 6px;padding-bottom:4px;border-bottom:1px solid var(--border)}.test-section-head strong{color:var(--text);font-size:.95rem}.btn-mini{flex:0 0 auto;font-size:.8rem;padding:4px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);cursor:pointer}.btn-mini:hover{border-color:var(--primary);color:var(--primary)}.preview-section-head{margin:4px 0 6px;color:var(--text)}.checkbox-row{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--text-secondary);margin:4px 0 10px;cursor:pointer}.checkbox-row input{width:auto}.dummy-row{border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px;margin-bottom:8px;background:var(--bg)}.dummy-row-top{display:flex;align-items:center;gap:8px}.dummy-row-top .input{flex:1 1 auto}.dummy-meta-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px;margin-top:6px}@media(max-width:520px){.dummy-meta-grid{grid-template-columns:1fr}}.retention-options{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0}.retention-option{flex:1 1 0;min-width:64px;display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 4px;border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);cursor:pointer}.retention-option.active{border-color:var(--primary);background:#3730a314}.retention-pct{font-size:1.05rem;font-weight:700}.retention-cost{font-size:.7rem;color:var(--text-secondary)}