:root{--ink:#1a1410;--ink-mid:#4a3f35;--ink-light:#8a7a6e;--ink-faint:#c8b8a8;--paper:#faf6f0;--paper-warm:#f3ece2;--paper-rule:#e8ddd0;--red:#c0392b;--red-soft:#e8d5d0;--teal:#2a7a6a;--teal-soft:#d0e8e2;--gold:#9a7a30;--gold-soft:#f0e8d0;--border:1px solid var(--paper-rule)}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--paper);color:var(--ink);min-height:100vh;font-family:Crimson Pro,Noto Serif JP,Georgia,serif;font-size:16px;line-height:1.6}#app{height:100vh;display:flex;overflow:hidden}#sidebar{background:var(--paper-warm);border-right:var(--border);flex-direction:column;width:220px;min-width:220px;display:flex;overflow-y:auto}#main{flex-direction:column;flex:1;display:flex;overflow:hidden}.sidebar-logo{border-bottom:var(--border);padding:24px 20px 16px}.sidebar-logo .kanji-mark{color:var(--ink);letter-spacing:4px;font-family:Noto Serif JP,serif;font-size:32px;font-weight:300;display:block}.sidebar-logo .app-title{color:var(--ink-light);letter-spacing:.5px;margin-top:2px;font-family:Crimson Pro,serif;font-size:13px;font-style:italic}.sidebar-section{padding:16px 0 8px}.sidebar-label{letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-faint);padding:0 20px 6px;font-family:Noto Sans JP,sans-serif;font-size:10px;font-weight:500}.nav-item{cursor:pointer;color:var(--ink-mid);border-left:3px solid #0000;align-items:center;gap:10px;padding:9px 20px;font-family:Noto Sans JP,sans-serif;font-size:14px;font-weight:300;transition:background .15s,color .15s;display:flex}.nav-item:hover{background:var(--paper-rule);color:var(--ink)}.nav-item.active{background:var(--paper);border-left-color:var(--red);color:var(--ink);font-weight:400}.nav-item .nav-icon{text-align:center;width:20px;font-size:16px}.tag-item{cursor:pointer;color:var(--ink-mid);justify-content:space-between;align-items:center;padding:7px 20px;font-family:Noto Sans JP,sans-serif;font-size:14.3px;font-weight:300;transition:background .15s;display:flex}.tag-item:hover{background:var(--paper-rule)}.tag-item.active{background:var(--paper);color:var(--ink);font-weight:400}.tag-count{color:var(--ink-mid);background:var(--paper-rule);border-radius:10px;padding:1px 7px;font-family:Crimson Pro,serif;font-size:12.1px}.sidebar-stats{border-top:var(--border);color:var(--ink-light);margin-top:auto;padding:16px 20px;font-family:Noto Sans JP,sans-serif;font-size:12px;font-weight:300}.stat-line{justify-content:space-between;margin-bottom:4px;display:flex}.stat-val{color:var(--ink-mid);font-family:Crimson Pro,serif;font-size:14px}#topbar{border-bottom:var(--border);background:var(--paper);flex-shrink:0;align-items:center;gap:12px;padding:14px 24px;display:flex}#topbar h2{color:var(--ink);flex:1;font-family:Crimson Pro,serif;font-size:22px;font-weight:400}#search-box{border:var(--border);background:var(--paper-warm);width:260px;color:var(--ink);border-radius:2px;outline:none;padding:7px 14px;font-family:Noto Sans JP,sans-serif;font-size:13px;transition:border-color .15s}#search-box:focus{border-color:var(--ink-light)}#search-box::placeholder{color:var(--ink-faint)}.btn{border:var(--border);background:var(--paper-warm);color:var(--ink-mid);cursor:pointer;letter-spacing:.3px;white-space:nowrap;border-radius:2px;padding:7px 16px;font-family:Noto Sans JP,sans-serif;font-size:12px;font-weight:400;transition:background .15s,color .15s}.btn:hover{background:var(--paper-rule);color:var(--ink)}.btn-primary{color:var(--ink);background:#e2d3bf;border-color:#d3c0a8}.btn-primary:hover{color:var(--ink);background:#d8c7b0;border-color:#c9b498}#content{flex:1;padding:24px;overflow-y:auto}#browse-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;display:grid}.kanji-card{background:var(--paper);border:var(--border);cursor:pointer;border-radius:2px;padding:18px 14px 14px;transition:box-shadow .15s,transform .15s,border-color .15s}.kanji-card:hover{border-color:var(--ink-faint);transform:translateY(-2px);box-shadow:0 4px 16px #1a141014}.kanji-card .k-char{text-align:center;color:var(--ink);white-space:nowrap;margin-bottom:10px;font-family:Noto Serif JP,serif;font-size:46.2px;font-weight:300;line-height:1.1;display:block;overflow:hidden}.kanji-card .k-meaning{text-align:center;color:var(--ink-mid);font-family:Crimson Pro,serif;font-size:14.3px;font-style:italic}.kanji-card .k-reading{text-align:center;color:var(--ink-light);margin-top:4px;font-family:Noto Sans JP,sans-serif;font-size:12.1px}.kanji-card .k-tags{flex-wrap:wrap;justify-content:center;gap:3px;margin-top:8px;display:flex}.k-tag{border-radius:10px;padding:1px 6px;font-family:Noto Sans JP,sans-serif;font-size:10px;font-weight:300}.kanji-card .k-tag{font-size:11px}.k-tag.topic{background:var(--teal-soft);color:var(--teal)}.k-tag.encounter{background:var(--gold-soft);color:var(--gold)}#detail-overlay{z-index:100;background:#1a141059;justify-content:center;align-items:center;display:none;position:fixed;inset:0}#detail-overlay.open{display:flex}#detail-panel{background:var(--paper);border:var(--border);border-radius:2px;width:560px;max-width:95vw;max-height:85vh;overflow-y:auto;box-shadow:0 8px 40px #1a141026}.detail-header{border-bottom:var(--border);align-items:flex-start;gap:20px;padding:28px 28px 20px;display:flex}.detail-kanji{color:var(--ink);flex-shrink:0;font-family:Noto Serif JP,serif;font-size:79.2px;font-weight:300;line-height:1}.detail-meta{flex:1}.detail-meaning{color:var(--ink);margin-bottom:6px;font-family:Crimson Pro,serif;font-size:24.2px;font-style:italic}.detail-readings{color:var(--ink-mid);font-family:Noto Sans JP,sans-serif;font-size:14.3px;font-weight:300;line-height:1.8}.detail-readings span{color:var(--ink-light);margin-right:4px;font-size:12.1px}.detail-body{padding:20px 28px 28px}.detail-section{margin-bottom:18px}.detail-section-title{letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-mid);margin-bottom:6px;font-family:Noto Sans JP,sans-serif;font-size:10px;font-weight:500}.detail-section-body{color:var(--ink-mid);font-family:Crimson Pro,serif;font-size:16.5px;line-height:1.6}.example-word{align-items:baseline;gap:10px;margin-bottom:8px;display:flex}.example-word .word-jp{flex-shrink:0;font-family:Noto Serif JP,serif;font-size:17.6px}.example-word .word-reading{color:var(--ink-light);flex-shrink:0;font-family:Noto Sans JP,sans-serif;font-size:13.2px;font-weight:300}.example-word .word-en{color:var(--ink-light);font-size:14.3px;font-style:italic}.example-words{grid-template-columns:auto auto 1fr;align-items:baseline;gap:8px 20px;display:grid}.example-words .example-word{display:contents}.detail-footer{border-top:var(--border);background:var(--paper-warm);justify-content:flex-end;gap:8px;padding:16px 28px;display:flex}#flashcard-view{flex-direction:column;align-items:center;padding:32px 24px;display:flex}.fc-progress{align-items:center;gap:12px;width:100%;max-width:500px;margin-bottom:32px;display:flex}.fc-bar{background:var(--paper-rule);border-radius:2px;flex:1;height:3px;overflow:hidden}.fc-bar-fill{background:var(--ink-faint);height:100%;transition:width .3s}.fc-counter{color:var(--ink-light);white-space:nowrap;font-family:Crimson Pro,serif;font-size:13px}.flashcard{background:var(--paper);border:var(--border);cursor:pointer;border-radius:2px;flex-direction:column;justify-content:center;align-items:center;width:100%;max-width:500px;min-height:320px;padding:40px 32px;transition:box-shadow .2s;display:flex;position:relative;box-shadow:0 4px 24px #1a141014}.flashcard:hover{box-shadow:0 6px 32px #1a14101f}.fc-hint{color:var(--ink-faint);letter-spacing:.5px;font-family:Noto Sans JP,sans-serif;font-size:11px;position:absolute;bottom:16px}.fc-kanji{color:var(--ink);white-space:nowrap;margin-bottom:8px;font-family:Noto Serif JP,serif;font-size:96px;font-weight:300;line-height:1}.fc-tags{flex-wrap:wrap;justify-content:center;gap:6px;margin-top:12px;display:flex}.fc-answer{text-align:center}.fc-meaning{color:var(--ink);margin-bottom:12px;font-family:Crimson Pro,serif;font-size:28px;font-style:italic}.fc-readings{color:var(--ink-mid);margin-bottom:12px;font-family:Noto Sans JP,sans-serif;font-size:14px;font-weight:300}.fc-mnemonic{color:var(--ink-light);text-align:center;border-top:var(--border);max-width:360px;margin-top:4px;padding-top:12px;font-family:Crimson Pro,serif;font-size:14px;font-style:italic}.fc-controls{gap:12px;margin-top:28px;display:flex}.fc-mode-btns{gap:8px;margin-bottom:24px;display:flex}.fc-srs-toggle{gap:8px;margin-bottom:20px;display:flex}.fc-grade{justify-content:center;min-width:260px}.fc-grade .btn{min-width:120px}.fc-miss{color:var(--red);border-color:var(--red-soft)}.fc-miss:hover{background:var(--red-soft);border-color:var(--red);color:var(--red)}.fc-session-summary{color:var(--ink-mid);margin-top:8px;font-family:Noto Sans JP,sans-serif;font-size:13px;font-style:normal}.fc-caught-hint{color:var(--ink-light);margin-top:6px;font-size:13px}.fc-newlimit{color:var(--ink-light);white-space:nowrap;align-items:center;gap:6px;margin-left:auto;font-family:Crimson Pro,serif;font-size:13px;display:inline-flex}.empty-state .fc-newlimit{margin-top:12px;margin-left:0}.fc-newlimit input{text-align:center;width:56px;color:var(--ink);background:var(--paper-warm);border:1px solid var(--paper-rule);border-radius:5px;padding:3px 6px;font-family:inherit;font-size:13px}#quiz-view{max-width:560px;margin:0 auto}.quiz-question{text-align:center;margin-bottom:28px}.quiz-kanji{color:var(--ink);margin-bottom:8px;font-family:Noto Serif JP,serif;font-size:88px;font-weight:300;line-height:1;display:block}.quiz-prompt{color:var(--ink-light);font-family:Noto Sans JP,sans-serif;font-size:14px}.quiz-options{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:24px;display:grid}.quiz-option{border:var(--border);background:var(--paper-warm);cursor:pointer;color:var(--ink-mid);text-align:center;border-radius:2px;padding:16px 14px;font-family:Crimson Pro,serif;font-size:16px;font-style:italic;transition:background .15s,border-color .15s}.quiz-option:hover:not(.disabled){background:var(--paper-rule);color:var(--ink)}.quiz-option.correct{background:var(--teal-soft);border-color:var(--teal);color:var(--teal)}.quiz-option.wrong{background:var(--red-soft);border-color:var(--red);color:var(--red)}.quiz-option.disabled{pointer-events:none}.quiz-score{text-align:center;color:var(--ink-light);margin-bottom:20px;font-family:Noto Sans JP,sans-serif;font-size:13px}#writing-view{text-align:center;max-width:560px;margin:0 auto}.writing-prompt-label{color:var(--ink-light);margin-bottom:20px;font-family:Noto Sans JP,sans-serif;font-size:13px}.writing-kanji-box{background:var(--paper-warm);border:var(--border);flex-direction:column;align-items:center;margin-bottom:24px;padding:32px 48px;display:inline-flex}.writing-kanji{color:var(--ink);font-family:Noto Serif JP,serif;font-size:88px;font-weight:300;line-height:1}.writing-reveal{background:var(--paper-warm);border:var(--border);text-align:left;border-left:3px solid var(--ink-faint);margin-top:20px;padding:16px 24px}.writing-reveal-reading{color:var(--ink-mid);margin-bottom:4px;font-family:Noto Sans JP,sans-serif;font-size:13px;font-weight:300}.writing-reveal-meaning{color:var(--ink);font-family:Crimson Pro,serif;font-size:18px;font-style:italic}#form-overlay{z-index:100;background:#1a141059;justify-content:center;align-items:center;display:none;position:fixed;inset:0}#form-overlay.open{display:flex}#form-panel{background:var(--paper);border:var(--border);border-radius:2px;width:560px;max-width:95vw;max-height:90vh;overflow-y:auto;box-shadow:0 8px 40px #1a141026}.form-header{border-bottom:var(--border);justify-content:space-between;align-items:center;padding:24px 28px 18px;display:flex}.form-header h3{font-family:Crimson Pro,serif;font-size:20px;font-weight:400}.form-body{padding:20px 28px}.form-row{margin-bottom:16px}.form-label{letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-mid);margin-bottom:5px;font-family:Noto Sans JP,sans-serif;font-size:10px;font-weight:500;display:block}.form-input,.form-textarea{border:var(--border);background:var(--paper-warm);width:100%;color:var(--ink);border-radius:2px;outline:none;padding:8px 12px;font-family:Noto Sans JP,sans-serif;font-size:14px;font-weight:300;transition:border-color .15s}.form-input:focus,.form-textarea:focus{border-color:var(--ink-light)}.form-textarea{resize:vertical;height:80px}.form-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.examples-head,.example-row{grid-template-columns:1fr 1fr 1.5fr 24px;align-items:center;gap:8px;display:grid}.examples-head{margin-bottom:4px}.examples-head span{letter-spacing:1px;text-transform:uppercase;color:var(--ink-light);font-family:Noto Sans JP,sans-serif;font-size:10px;font-weight:500}.example-row{margin-bottom:6px}.example-row .form-input{padding:6px 10px}.ex-remove{color:var(--ink-faint);cursor:pointer;background:0 0;border:none;padding:0;font-size:15px;line-height:1;transition:color .15s}.ex-remove:hover{color:var(--red)}.form-footer{border-top:var(--border);background:var(--paper-warm);justify-content:flex-end;gap:8px;padding:16px 28px;display:flex}.close-btn{color:var(--ink-light);cursor:pointer;background:0 0;border:none;padding:0;font-size:20px;line-height:1}.close-btn:hover{color:var(--ink)}.empty-state{text-align:center;color:var(--ink-light);padding:60px 24px}.empty-kanji{color:var(--paper-rule);margin-bottom:16px;font-family:Noto Serif JP,serif;font-size:64px;font-weight:300;display:block}.empty-state p{font-family:Crimson Pro,serif;font-size:16px;font-style:italic}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--paper-rule);border-radius:3px}#sync-status{white-space:nowrap;color:var(--ink-faint);font-family:Noto Sans JP,sans-serif;font-size:11px;font-weight:300}#sync-status.ok{color:var(--teal)}#sync-status.error{color:var(--red)}#sync-status.conflict{color:var(--gold)}#sync-banner{border-bottom:var(--border);flex-shrink:0;align-items:center;gap:12px;padding:9px 24px;font-family:Crimson Pro,serif;font-size:13px;font-style:italic;display:none}#sync-banner.error{background:var(--red-soft);color:var(--red);display:flex}#sync-banner.warning{background:var(--gold-soft);color:var(--gold);display:flex}.banner-close{cursor:pointer;opacity:.6;margin-left:auto;font-size:16px;font-style:normal}.banner-close:hover{opacity:1}#conflict-overlay{z-index:200;background:#1a141059;justify-content:center;align-items:center;display:none;position:fixed;inset:0}#conflict-overlay.open{display:flex}#conflict-panel{background:var(--paper);border:var(--border);border-radius:2px;width:480px;max-width:95vw;padding:32px;box-shadow:0 8px 40px #1a141026}