:root{--bg: #ffffff;--bg-soft: #fafafa;--bg-muted: #f4f4f5;--bg-hover: #f9fafb;--bg-back: #fafafa;--border: #e5e7eb;--border-strong: #d4d4d8;--text: #09090b;--text-soft: #3f3f46;--text-mute: #71717a;--text-faint: #a1a1aa;--accent: #4f46e5;--accent-soft: #eef2ff;--success: #059669;--success-soft: #ecfdf5;--success-border: #a7f3d0;--danger: #dc2626;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .04);--shadow-md: 0 1px 3px 0 rgba(0, 0, 0, .05), 0 1px 2px -1px rgba(0, 0, 0, .04);--shadow-lg: 0 4px 6px -1px rgba(0, 0, 0, .06), 0 2px 4px -2px rgba(0, 0, 0, .04);--radius-sm: 6px;--radius: 8px}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background:var(--bg);color:var(--text);font-family:Pretendard,Pretendard Variable,-apple-system,BlinkMacSystemFont,Noto Sans JP,sans-serif;line-height:1.5;min-height:100vh;-webkit-font-smoothing:antialiased}.header{border-bottom:1px solid var(--border);padding:20px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;background:#ffffffd9;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);position:sticky;top:0;z-index:50}.header h1{font-weight:700;font-size:18px;letter-spacing:-.02em;color:var(--text);display:flex;align-items:center;gap:10px}.header h1 .logo{width:28px;height:28px;background:var(--text);color:var(--bg);display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);font-family:Noto Sans JP,sans-serif;font-size:14px;font-weight:700}.header h1 .jp{font-family:Noto Sans JP,sans-serif;color:var(--text-mute);font-weight:500;font-size:13px;margin-left:4px;letter-spacing:.04em}.header .meta{font-size:13px;color:var(--text-mute);display:inline-flex;align-items:center;gap:6px}.header .meta .pill{background:var(--bg-muted);color:var(--text-soft);padding:3px 8px;border-radius:999px;font-size:12px;font-weight:500;font-feature-settings:"tnum"}.header .save-status{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--success);padding:4px 10px;background:var(--success-soft);border:1px solid var(--success-border);border-radius:999px;opacity:0;transform:translateY(-2px);transition:opacity .25s,transform .25s}.header .save-status.show{opacity:1;transform:translateY(0)}.header .save-status .dot{width:6px;height:6px;border-radius:50%;background:var(--success)}.admin-fab{position:fixed;right:20px;bottom:20px;z-index:60;box-shadow:var(--shadow-md)}.brand{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.page-tabs{display:flex;gap:2px;padding:3px;background:var(--bg-muted);border-radius:999px}.page-tab{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:none;border:none;border-radius:999px;padding:5px 14px;font:inherit;font-size:13px;font-weight:600;color:var(--text-mute);cursor:pointer;transition:color .15s,background .15s}.page-tab:hover{color:var(--text-soft)}.page-tab.active{color:var(--text);background:var(--bg);box-shadow:var(--shadow-sm)}.empty-view{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;min-height:50vh;text-align:center;color:var(--text-mute)}.empty-view-icon{width:56px;height:56px;display:inline-flex;align-items:center;justify-content:center;background:var(--bg-muted);color:var(--text-faint);border-radius:var(--radius);font-family:Noto Sans JP,sans-serif;font-size:28px;font-weight:700}.empty-view h2{font-size:18px;font-weight:700;color:var(--text-soft)}.empty-view p{font-size:14px}.w-side-tools{display:flex;flex-direction:column;gap:8px;padding:0 12px 14px}.w-side-tools .search{width:100%}.w-side-tools .search input{width:100%;box-sizing:border-box}.w-side-tools .toggle{align-self:flex-start}.day-count{font-size:12px;color:var(--text-mute);font-weight:500;margin-left:10px;font-family:Pretendard,sans-serif}.level-acc{display:flex;flex-direction:column;gap:4px;padding:0 8px}.lv-group{border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}.lv-group.open{border-color:var(--border-strong)}.lv-head{width:100%;display:flex;align-items:center;gap:8px;padding:10px 12px;background:var(--bg-soft);border:none;cursor:pointer;font:inherit;color:var(--text);transition:background .12s}.lv-head:hover,.lv-group.open .lv-head{background:var(--bg-muted)}.lv-caret{font-size:10px;color:var(--text-mute);transition:transform .15s;display:inline-block}.lv-group.open .lv-caret{transform:rotate(90deg)}.lv-name{font-weight:700;font-size:14px;letter-spacing:.01em}.lv-count{margin-left:auto;font-size:11px;color:var(--text-faint);font-family:JetBrains Mono,monospace;font-feature-settings:"tnum"}.lv-days{display:none;flex-direction:column;gap:1px;padding:4px;background:var(--bg);max-height:320px;overflow-y:auto}.lv-group.open .lv-days{display:flex}.card.wcard{height:300px}.wcard .tab-panel{display:flex;flex-direction:column;padding:12px 16px 14px}.wcard .tab-panel[hidden]{display:none}.card.wcard.known .tab-panel,.card.wcard.known .wpane-img .wimg.has-img{background:var(--success-soft)}.wpane-word .center{flex:1 1 auto}.wpane-img{padding:0}.wpane-img .wimg{width:100%;height:100%;border-radius:0}.wcard .wpane-mean{justify-content:flex-start;overflow:auto;padding-top:46px;padding-bottom:8px}.wpane-mean .mean-body{display:flex;flex-direction:column;gap:8px;width:100%}.wcard .wpane-mean .wtip-wrap{margin:2px 0 0}.wpane-mean .mean-head{text-align:center;border-bottom:1px dashed var(--border);padding-bottom:8px}.wpane-mean .mean-head .word{font-size:26px;line-height:1.2}.wpane-mean .mean-head .wk{margin-top:2px}.wpane-mean .meaning{font-size:18px;color:var(--text);font-weight:600;text-align:center;word-break:keep-all}.wpane-mean .mean-foot{margin-top:auto;justify-content:flex-end}.wpane-note{gap:8px;padding-top:14px}.wpane-note .wnote-label{font-size:12px;color:var(--text-mute);font-weight:600;font-family:Pretendard,sans-serif}.wpane-note .wnote-edit{flex:1 1 auto;width:100%;box-sizing:border-box;resize:none;font-family:Pretendard,sans-serif;font-size:13px;line-height:1.6;color:var(--text-soft);background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 10px}.wpane-note .wnote-edit::placeholder{color:var(--text-faint)}.wpane-note .wnote-edit:focus{outline:none;border-color:var(--accent);background:var(--bg)}.wimg{position:relative;border-radius:var(--radius-sm);overflow:hidden}.wimg-img{display:none;width:100%;height:100%;object-fit:cover}.wimg.has-img .wimg-img{display:block}.wimg.has-img .wimg-fallback{display:none}.wimg-fallback{display:flex;align-items:center;justify-content:center;width:100%;height:100%;box-sizing:border-box}.wimg-fallback.upload{border:1.5px dashed var(--border-strong);background:var(--bg-soft);color:var(--text-mute);font-size:13px;cursor:pointer;transition:all .12s}.wimg-fallback.upload:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}.wimg-fallback.empty{color:var(--text-faint);font-size:12px;background:var(--bg-soft)}.wimg.loading{opacity:.6;pointer-events:none}.wimg-del{position:absolute;top:6px;right:6px;width:24px;height:24px;border:none;border-radius:50%;background:#0000008c;color:#fff;cursor:pointer;font-size:11px;line-height:1;display:none;align-items:center;justify-content:center;z-index:2}.wimg.has-img .wimg-del{display:flex}.wimg-del:hover{background:#dc2626d9}.wcard .num-row{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--text-faint);font-family:JetBrains Mono,monospace;font-feature-settings:"tnum"}.wcard .num-row .right{display:inline-flex;gap:6px;align-items:center}.wcard .lv-badge{font-size:10px;font-weight:700;color:var(--bg);background:var(--text);padding:2px 6px;border-radius:4px;font-family:JetBrains Mono,monospace;letter-spacing:.02em}.wcard .pos{font-size:10px;color:var(--accent);background:var(--accent-soft);padding:2px 7px;border-radius:4px;font-weight:600;font-family:Pretendard,sans-serif}.wcard .center{flex:1 1 auto;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:12px 4px;min-height:0}.wcard .word{font-family:Noto Sans JP,sans-serif;font-size:38px;font-weight:600;color:var(--text);line-height:1.15;text-align:center;word-break:break-all}.wcard .word ruby{ruby-align:center;ruby-position:over;-webkit-ruby-position:before}.wcard .word ruby rt{font-family:Noto Sans JP,sans-serif;font-size:15px;font-weight:500;color:var(--accent);line-height:1.2;letter-spacing:0}.wcard .word.hide-furi ruby rt{color:transparent}.wcard .wk{font-size:12px;color:var(--text-faint);font-family:JetBrains Mono,monospace;text-align:center}.wcard .wk.hidden{color:transparent;background:var(--bg-muted);border-radius:4px;min-width:50%}.wcard .meaning{font-size:15px;color:var(--text-soft);font-weight:500;text-align:center;margin-top:2px;word-break:keep-all}.wcard .meaning.hidden{color:transparent;background:var(--bg-muted);border-radius:4px;min-width:60%;min-height:1.2em}.wcard .wtip-wrap{margin:4px 0 8px}.wcard .wtip-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}.wcard .wtip-label{font-size:11px;color:var(--text-mute);font-weight:600;font-family:Pretendard,sans-serif}.wcard .wtip-revert{border:1px solid var(--border);background:var(--bg);color:var(--text-mute);cursor:pointer;width:18px;height:18px;border-radius:4px;padding:0;font-size:12px;line-height:1;display:inline-flex;align-items:center;justify-content:center;transition:all .12s}.wcard .wtip-revert:hover{border-color:var(--accent);color:var(--accent)}.wcard .wtip-revert.hidden{display:none}.wcard .wtip-edit{width:100%;box-sizing:border-box;resize:vertical;min-height:40px;font-family:Pretendard,sans-serif;font-size:12px;line-height:1.5;color:var(--text-soft);background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius-sm);padding:7px 10px;transition:border-color .12s,background .12s}.wcard .wtip-edit::placeholder{color:var(--text-faint)}.wcard .wtip-edit:focus{outline:none;border-color:var(--accent);background:var(--bg)}.wcard .foot{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--text-faint);font-family:JetBrains Mono,monospace;border-top:1px dashed var(--border);padding-top:8px}.wcard .foot .lv-day{font-family:Pretendard,sans-serif}.wcard .foot .known-check{display:inline-flex;align-items:center;gap:5px;cursor:pointer;color:var(--text-mute);font-family:Pretendard,sans-serif;font-size:11px;-webkit-user-select:none;user-select:none}.wcard .foot .known-check input{width:14px;height:14px;cursor:pointer;accent-color:var(--success);margin:0}.card.known.wcard .foot .known-check{color:var(--success);font-weight:600}.controls{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:14px 32px;border-bottom:1px solid var(--border);background:var(--bg)}.search{flex:1 1 240px;max-width:360px;position:relative}.search input{width:100%;padding:8px 12px 8px 34px;border:1px solid var(--border);background:var(--bg);color:var(--text);font-family:inherit;font-size:13px;border-radius:var(--radius-sm);transition:border-color .15s,box-shadow .15s}.search input::placeholder{color:var(--text-faint)}.search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #6366f11f}.search:before{content:"";position:absolute;left:11px;top:50%;transform:translateY(-50%);width:14px;height:14px;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23a1a1aa' stroke-width='1.5'><circle cx='7' cy='7' r='5'/><path d='m11 11 3 3'/></svg>");background-repeat:no-repeat}.toggle{display:inline-flex;align-items:center;gap:7px;padding:7px 12px;border:1px solid var(--border);background:var(--bg);color:var(--text-soft);cursor:pointer;font-family:inherit;font-size:13px;font-weight:500;border-radius:var(--radius-sm);transition:all .15s;-webkit-user-select:none;user-select:none}.toggle:hover{border-color:var(--border-strong);background:var(--bg-hover)}.toggle.on{background:var(--text);color:var(--bg);border-color:var(--text)}.toggle .dot{width:6px;height:6px;border-radius:50%;background:var(--text-faint);transition:background .15s}.toggle.on .dot{background:#4ade80}.data-controls{display:inline-flex;gap:4px;margin-left:8px;padding-left:12px;border-left:1px solid var(--border)}.data-btn{padding:7px 12px;border:1px solid var(--border);background:var(--bg);color:var(--text-soft);cursor:pointer;font-family:inherit;font-size:13px;font-weight:500;border-radius:var(--radius-sm);transition:all .15s}.data-btn:hover{background:var(--bg-hover);border-color:var(--border-strong);color:var(--text)}.data-btn.danger:hover{color:var(--danger);border-color:#fecaca;background:#fef2f2}.stat{margin-left:auto;font-size:12px;color:var(--text-mute)}.stat strong{color:var(--text);font-weight:600;font-feature-settings:"tnum"}.col-selector{display:inline-flex;align-items:center;gap:8px}.col-selector .label{font-size:11px;color:var(--text-mute);font-weight:500;letter-spacing:.04em}.seg{display:inline-flex;border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;background:var(--bg)}.seg-btn{padding:6px 10px;background:transparent;border:none;border-right:1px solid var(--border);color:var(--text-soft);cursor:pointer;font-size:12px;font-weight:500;font-family:JetBrains Mono,monospace;transition:all .12s;min-width:28px}.seg-btn:last-child{border-right:none}.seg-btn:hover{background:var(--bg-hover);color:var(--text)}.seg-btn.active{background:var(--text);color:var(--bg)}.layout{display:grid;grid-template-columns:240px 1fr;gap:0;min-height:calc(100vh - 134px)}@media (max-width: 900px){.layout{grid-template-columns:1fr}.sidebar{border-right:none!important;border-bottom:1px solid var(--border);position:static!important;max-height:none!important}.day-grid{display:grid!important;grid-template-columns:repeat(auto-fill,minmax(64px,1fr))!important;gap:6px!important;padding:14px!important}.day-btn{justify-content:center!important;padding:10px 8px!important;border:1px solid var(--border)!important}.day-btn .day-meta{display:none!important}.day-btn.active{border-color:var(--accent)!important}}.sidebar{border-right:1px solid var(--border);background:var(--bg-soft);position:sticky;top:67px;align-self:start;min-height:calc(100vh - 134px);max-height:calc(100vh - 134px);overflow-y:auto;padding:18px 0}.sidebar h2{font-size:11px;font-weight:600;letter-spacing:.08em;color:var(--text-mute);padding:0 20px 10px;text-transform:uppercase}.day-grid{display:flex;flex-direction:column;padding:0 8px;gap:1px}.day-btn{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;background:transparent;border:none;color:var(--text-soft);cursor:pointer;font-family:inherit;font-size:13px;font-weight:500;text-align:left;transition:all .12s;width:100%;border-radius:var(--radius-sm)}.day-btn:hover{background:var(--bg-muted);color:var(--text)}.day-btn.active{background:var(--accent-soft);color:var(--accent);font-weight:600}.day-btn .day-meta{font-size:11px;color:var(--text-faint);font-weight:500;font-feature-settings:"tnum"}.day-btn .day-meta .filled{color:var(--success);font-weight:600}.day-btn.active .day-meta{color:var(--accent);opacity:.7}.main{padding:28px 32px 80px}@media (max-width: 900px){.main{padding:20px 20px 60px}}.day-header{display:flex;align-items:center;gap:14px;padding-bottom:18px;margin-bottom:22px;border-bottom:1px solid var(--border);flex-wrap:wrap}.day-header .day-title{font-size:22px;font-weight:700;letter-spacing:-.02em;color:var(--text);display:inline-flex;align-items:center;gap:10px}.day-header .day-title .num{color:var(--accent);background:var(--accent-soft);font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--radius-sm);letter-spacing:.02em;font-feature-settings:"tnum"}.day-header .day-range{color:var(--text-mute);font-size:13px;font-family:JetBrains Mono,monospace;font-feature-settings:"tnum"}.day-header .known-filter,.day-header .col-selector{display:inline-flex;align-items:center;gap:6px;padding-left:12px;border-left:1px solid var(--border)}.filter-btn{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:5px 12px;font-size:12px;font-weight:500;color:var(--text-soft);cursor:pointer;font-family:Pretendard,sans-serif;transition:all .12s}.filter-btn:hover{border-color:var(--text);color:var(--text)}.filter-btn.active{background:var(--success);border-color:var(--success);color:#fff}.day-header .bulk-tabs{margin-left:auto;display:inline-flex;align-items:center;gap:6px}.bulk-tabs .bulk-label{font-size:12px;color:var(--text-mute);font-weight:500;margin-right:4px}.bulk-tab{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:5px 12px;font-size:12px;font-weight:500;color:var(--text-soft);cursor:pointer;font-family:Pretendard,sans-serif;transition:all .12s}.bulk-tab:hover{border-color:var(--text);color:var(--text)}.bulk-tab.active{background:var(--text);border-color:var(--text);color:var(--bg)}.word-grid{display:grid;gap:12px}.word-grid[data-cols="1"]{grid-template-columns:1fr}.word-grid[data-cols="2"]{grid-template-columns:repeat(2,minmax(0,1fr))}.word-grid[data-cols="3"]{grid-template-columns:repeat(3,minmax(0,1fr))}.word-grid[data-cols="4"]{grid-template-columns:repeat(4,minmax(0,1fr))}.word-grid[data-cols="5"]{grid-template-columns:repeat(5,minmax(0,1fr))}.word-grid[data-cols="6"]{grid-template-columns:repeat(6,minmax(0,1fr))}@media (max-width: 1200px){.word-grid[data-cols="5"],.word-grid[data-cols="6"]{grid-template-columns:repeat(4,minmax(0,1fr))}}@media (max-width: 900px){.word-grid[data-cols="3"],.word-grid[data-cols="4"],.word-grid[data-cols="5"],.word-grid[data-cols="6"]{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 600px){.word-grid[data-cols]{grid-template-columns:1fr}}.card{position:relative;display:flex;flex-direction:column;min-height:240px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .15s,box-shadow .15s}.card:hover{box-shadow:var(--shadow-md);border-color:var(--border-strong)}.card.known{background:var(--success-soft);border-color:var(--success-border)}.card.known .word{color:var(--success)}.tab-bar{display:flex;border-bottom:1px solid var(--border);background:var(--bg-soft);flex:0 0 auto}.tab-btn{flex:1;background:none;border:none;padding:8px 4px;font-size:11px;color:var(--text-mute);cursor:pointer;font-family:Pretendard,sans-serif;font-weight:500;border-bottom:2px solid transparent;margin-bottom:-1px;transition:all .12s}.tab-btn:hover{color:var(--text)}.tab-btn.active{color:var(--text);border-bottom-color:var(--text);font-weight:600;background:var(--bg)}.tab-panel{flex:1 1 auto;overflow:auto;background:var(--bg);cursor:default}.tab-panel[hidden]{display:none}.card.known .pane-front{background:var(--success-soft)}.pane-note{background:var(--bg-back)}.pane-explain{padding:12px;display:flex;flex-direction:column;gap:10px}.pane-explain .explain-original{white-space:pre-wrap;background:var(--bg-soft);border:1px solid var(--border);padding:10px 12px;border-radius:var(--radius-sm);font-family:Noto Sans JP,Pretendard,sans-serif;font-size:12.5px;line-height:1.7;color:var(--text-soft)}.pane-explain .explain-empty{color:var(--text-faint);font-size:12px;padding:14px;text-align:center}.card-front{display:grid;grid-template-rows:auto 1fr auto;padding:12px 16px 14px}.card-front .num-row{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--text-faint);font-family:JetBrains Mono,monospace;font-feature-settings:"tnum"}.card-front .num-row .right{display:inline-flex;gap:6px;align-items:center}.card-front .pos{font-size:10px;color:var(--accent);background:var(--accent-soft);padding:2px 7px;border-radius:4px;letter-spacing:.02em;font-weight:600;font-family:Pretendard,sans-serif}.card-front .known-btn{width:18px;height:18px;border:1px solid var(--border);background:var(--bg);border-radius:4px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0;line-height:1;color:var(--text-faint);font-size:10px;transition:all .12s}.card-front .known-btn:hover{border-color:var(--success);color:var(--success)}.card.known .card-front .known-btn{background:var(--success);border-color:var(--success);color:#fff}.card-front .flip-btn{width:18px;height:18px;border:1px solid var(--border);background:var(--bg);border-radius:4px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0;line-height:1;color:var(--text-mute);font-size:11px;transition:all .12s}.card-front .flip-btn:hover{border-color:var(--accent);color:var(--accent)}.card-front .center{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;min-height:0;padding:4px 6px}.card-front .word{font-family:Noto Sans JP,sans-serif;font-size:44px;font-weight:600;color:var(--text);line-height:1.15;text-align:center;word-break:break-all;letter-spacing:-.01em}.card-front .reading{font-family:Noto Sans JP,sans-serif;font-size:18px;color:var(--accent);font-weight:500;text-align:center;transition:all .2s;min-height:1.2em}.card-front .reading.hidden{color:transparent;background:var(--bg-muted);border-radius:4px;width:60%;margin:0 auto}.card-front .foot{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--text-faint);font-family:JetBrains Mono,monospace;border-top:1px dashed var(--border);padding-top:8px}.card-front .note-dot{display:inline-flex;align-items:center;gap:5px;color:var(--text-faint);font-family:Pretendard,sans-serif;font-size:11px}.card-front .note-dot .indicator{width:6px;height:6px;border-radius:50%;background:var(--border-strong);transition:background .15s}.card-front .note-dot.has-note{color:var(--accent)}.card-front .note-dot.has-note .indicator{background:var(--accent)}.card-front .known-check{display:inline-flex;align-items:center;gap:5px;cursor:pointer;color:var(--text-mute);font-family:Pretendard,sans-serif;font-size:11px;-webkit-user-select:none;user-select:none}.card-front .known-check input{width:14px;height:14px;cursor:pointer;accent-color:var(--success);margin:0}.card.known .card-front .known-check{color:var(--success);font-weight:600}.card-back{padding:14px 16px;display:flex;flex-direction:column}.card-back .back-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.card-back .back-header .badge{background:var(--bg);border:1px solid var(--border);padding:2px 8px;border-radius:999px;font-size:10px;color:var(--text-soft);font-weight:600;letter-spacing:.04em;text-transform:uppercase}.card-back .flip-btn.back{background:var(--bg);border:1px solid var(--border);color:var(--text-mute);cursor:pointer;width:22px;height:22px;border-radius:4px;display:inline-flex;align-items:center;justify-content:center;font-size:12px;padding:0;line-height:1;transition:all .12s}.card-back .flip-btn.back:hover{border-color:var(--accent);color:var(--accent)}.field{display:flex;flex-direction:row;align-items:baseline;gap:10px;margin-bottom:8px}.field:last-of-type{margin-bottom:0}.field label{flex:0 0 auto;min-width:56px;font-size:11px;color:var(--text-mute);font-weight:600;letter-spacing:.04em;margin-bottom:0}.field input{background:transparent;border:none;border-bottom:1px solid var(--border);padding:4px 0 5px;color:var(--text);font-size:14px;font-family:Noto Sans JP,Pretendard,sans-serif;transition:border-color .12s;outline:none;width:100%}.field input::placeholder,.field textarea::placeholder{color:var(--text-faint);font-size:12px}.field input:focus,.field textarea:focus{border-bottom-color:var(--accent)}.field textarea{background:transparent;border:none;border-bottom:1px solid var(--border);padding:4px 0 5px;color:var(--text);font-size:14px;font-family:Noto Sans JP,Pretendard,sans-serif;transition:border-color .12s;outline:none;width:100%;resize:vertical;line-height:1.4}.empty-state{text-align:center;padding:80px 20px;color:var(--text-mute)}.empty-state .icon{font-size:32px;color:var(--text-faint);margin-bottom:12px;font-weight:300}.notice{margin:0 32px 22px;background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);padding:14px 18px;font-size:13px;color:var(--text-soft);line-height:1.65;display:flex;gap:12px;align-items:flex-start}.notice .icon{flex-shrink:0;width:22px;height:22px;background:var(--accent);color:#fff;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;margin-top:1px}.notice strong{color:var(--text);font-weight:600}.notice .split{display:flex;gap:24px;flex-wrap:wrap}.notice .split>div{flex:1;min-width:200px}.notice .split .label{display:inline-block;font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;background:var(--bg);border:1px solid var(--border);padding:2px 8px;border-radius:4px;color:var(--text-soft);margin-right:6px}.footer{text-align:center;padding:24px 20px;border-top:1px solid var(--border);color:var(--text-faint);font-size:11px;letter-spacing:.05em;font-family:JetBrains Mono,monospace}.sidebar::-webkit-scrollbar{width:8px}.sidebar::-webkit-scrollbar-track{background:transparent}.sidebar::-webkit-scrollbar-thumb{background:transparent;border-radius:4px}.sidebar:hover::-webkit-scrollbar-thumb{background:var(--border)}.sidebar::-webkit-scrollbar-thumb:hover{background:var(--border-strong)}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%) translateY(20px);background:var(--text);color:var(--bg);padding:10px 18px;border-radius:var(--radius);font-size:13px;font-weight:500;opacity:0;pointer-events:none;transition:all .25s;z-index:100;box-shadow:var(--shadow-lg);display:inline-flex;align-items:center;gap:8px}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}.toast .toast-dot{width:6px;height:6px;border-radius:50%;background:#4ade80}.sync-dot{width:7px;height:7px;border-radius:50%;background:var(--text-faint);margin-right:6px;display:inline-block;vertical-align:middle;transition:background .2s}.sync-dot.on{background:#10b981;box-shadow:0 0 0 2px #10b98126}.sync-dot.busy{background:#f59e0b;animation:syncPulse 1s infinite}.sync-dot.error{background:#dc2626}@keyframes syncPulse{0%,to{opacity:1}50%{opacity:.4}}.data-btn.primary{background:var(--text);color:var(--bg);border-color:var(--text)}.data-btn.primary:hover{background:#27272a;border-color:#27272a;color:var(--bg)}.data-btn.primary:disabled{opacity:.5;cursor:not-allowed}.modal{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;z-index:200;padding:16px}.modal[hidden]{display:none}.modal-card{background:var(--bg);border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;max-width:480px;border:1px solid var(--border);overflow:hidden}.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}.modal-head h3{font-size:15px;font-weight:600;letter-spacing:-.01em}.modal-close{background:none;border:none;cursor:pointer;width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;color:var(--text-mute);font-size:22px;line-height:1;border-radius:var(--radius-sm)}.modal-close:hover{background:var(--bg-muted);color:var(--text)}.modal-body{padding:20px;display:flex;flex-direction:column;gap:16px}.form-row{display:flex;flex-direction:column;gap:6px}.form-row label{font-size:12px;font-weight:600;color:var(--text-soft);letter-spacing:-.01em}.form-row .muted{color:var(--text-faint);font-weight:400}.form-row input{border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 10px;font-size:13px;font-family:JetBrains Mono,ui-monospace,monospace;background:var(--bg);color:var(--text);outline:none}.form-row input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.form-row small{font-size:11px;color:var(--text-mute);line-height:1.5}.form-row small a{color:var(--accent);text-decoration:underline}.google-btn{width:100%;justify-content:center;gap:8px;padding:9px 12px;font-size:13px}.google-btn .g-icon{display:inline-flex;width:18px;height:18px;align-items:center;justify-content:center;background:#fff;color:#4285f4;border:1px solid var(--border);border-radius:50%;font-weight:700;font-size:12px;font-family:Pretendard,sans-serif}.auth-divider{display:flex;align-items:center;gap:10px;color:var(--text-faint);font-size:12px;margin:14px 0 12px}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--border)}#step-login .auth-link{align-self:flex-end;font-size:12px;color:var(--accent);text-decoration:none;margin-top:2px}#step-login .auth-link:hover{text-decoration:underline}#step-login small{display:block;margin-top:10px}.modal-status{font-size:12px;padding:8px 10px;border-radius:var(--radius-sm);background:var(--bg-muted);color:var(--text-soft);min-height:32px;display:flex;align-items:center}.modal-status:empty{display:none}.modal-status.error{background:#fef2f2;color:var(--danger);border:1px solid #fecaca}.modal-status.success{background:var(--success-soft);color:var(--success);border:1px solid var(--success-border)}.modal-actions{display:flex;justify-content:flex-end;gap:8px;padding:12px 20px;border-top:1px solid var(--border);background:var(--bg-soft)}.signed-in-info{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-soft)}.user-email{font-family:JetBrains Mono,ui-monospace,monospace;font-size:13px;color:var(--text);font-weight:500}#last-synced{font-size:11px;margin-left:auto}.card.jcard{height:300px}.jcard .tab-panel{display:flex;flex-direction:column;padding:12px 16px 14px}.jcard .tab-panel[hidden]{display:none}.card.jcard.known .tab-panel{background:var(--success-soft)}.jcard .num-row{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--text-faint);font-family:JetBrains Mono,monospace;font-feature-settings:"tnum"}.jcard .num-row .right{display:inline-flex;gap:6px;align-items:center}.jcard .lv-badge{font-size:10px;font-weight:700;color:var(--bg);background:var(--text);padding:2px 6px;border-radius:4px;font-family:JetBrains Mono,monospace;letter-spacing:.02em}.jcard .center{flex:1 1 auto;display:flex;align-items:center;justify-content:center;padding:14px 4px;min-height:0}.jcard .jkanji{font-family:"Noto Serif JP",Noto Sans JP,serif;font-size:64px;font-weight:700;color:var(--text);line-height:1;text-align:center}.jcard .foot{display:flex;align-items:center;justify-content:space-between}.jcard .lv-day{font-size:10px;color:var(--text-mute);font-weight:600;font-family:JetBrains Mono,monospace}.jpane-back{gap:0;justify-content:center}.jpane-back .field-val{flex:1 1 auto;border-bottom:1px solid var(--border);padding:4px 0 5px;color:var(--text);font-size:14px;font-family:Noto Sans JP,Pretendard,sans-serif;word-break:break-all}.jpane-back .field-val.jp{font-family:Noto Sans JP,sans-serif}.jpane-back .field-val.jkanji-sm{font-family:"Noto Serif JP",Noto Sans JP,serif;font-size:24px;font-weight:700;line-height:1.1}.jpane-back .field.mnemo{flex-direction:column;align-items:stretch;gap:4px;margin-top:4px}.jpane-back .jmnemo-edit{width:100%;box-sizing:border-box;resize:vertical;min-height:38px;font-family:Pretendard,sans-serif;font-size:12px;line-height:1.5;color:var(--text-soft);background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius-sm);padding:7px 10px;transition:border-color .12s,background .12s}.jpane-back .jmnemo-edit::placeholder{color:var(--text-faint)}.jpane-back .jmnemo-edit:focus{outline:none;border-color:var(--accent);background:var(--bg)}