:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--card-bg:#f8f7f9;--border:#e5e4e7;--accent:#7c3aed;--accent-light:#7c3aed1a;--success:#16a34a;--error:#dc2626;--shadow:#00000014 0 4px 12px;--sans:-apple-system, "Segoe UI", system-ui, Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:16px/1.5 var(--sans);color-scheme:light dark;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#0f0f13;--card-bg:#1a1b23;--border:#2e303a;--accent:#a78bfa;--accent-light:#a78bfa26;--shadow:#0006 0 4px 12px}}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{overscroll-behavior:none;-webkit-overflow-scrolling:touch;touch-action:manipulation;flex-direction:column;min-height:100svh;margin:0;display:flex}#app{width:100%;max-width:480px;padding:0;padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right);padding-bottom:env(safe-area-inset-bottom);flex-direction:column;flex:1;margin:0 auto;display:flex}.app-header{padding:1.5rem 1.25rem .5rem;padding-top:calc(1.5rem + env(safe-area-inset-top));text-align:center}.app-header h1{font-family:var(--sans);color:var(--text-h);letter-spacing:-.5px;margin:0;font-size:1.75rem;font-weight:700}.app-header p{color:var(--text);margin:.25rem 0 0;font-size:.9rem}.app-content{flex-direction:column;flex:1;gap:1rem;padding:1rem 1.25rem;display:flex}.card{background:var(--card-bg);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px;padding:1.25rem}.card-title{color:var(--text);text-transform:uppercase;letter-spacing:.5px;margin:0 0 .75rem;font-size:.85rem;font-weight:600}.sync-input-group{flex-direction:column;gap:.5rem;display:flex}.sync-input-group input{font-family:var(--mono);border:1px solid var(--border);background:var(--bg);color:var(--text-h);border-radius:8px;outline:none;width:100%;padding:.65rem .75rem;font-size:.9rem;transition:border-color .2s}.sync-input-group input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light)}.sync-buttons{gap:.5rem;display:flex}.btn{font-family:var(--sans);border:1px solid var(--border);background:var(--card-bg);min-height:48px;color:var(--text-h);cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation;user-select:none;border-radius:10px;flex:1;justify-content:center;align-items:center;gap:.4rem;padding:.75rem 1rem;font-size:.9rem;font-weight:600;transition:all .2s;display:flex}.btn:hover{border-color:var(--accent);background:var(--accent-light)}.btn:active{opacity:.9;transform:scale(.97)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{filter:brightness(1.1)}.status-bar{text-align:center;background:var(--accent-light);color:var(--text);border-radius:8px;min-height:36px;margin-top:auto;padding:.5rem .75rem;font-size:.85rem}.status-bar.error{color:var(--error);background:#dc26261a}.status-bar.success{color:var(--success);background:#16a34a1a}.app-footer{padding:1rem 1.25rem;padding-bottom:calc(1rem + env(safe-area-inset-bottom));text-align:center;color:var(--text);opacity:.6;font-size:.75rem}.divider{border:none;border-top:1px solid var(--border);margin:.25rem 0}.placeholder-area{color:var(--text);opacity:.4;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:.5rem;min-height:100px;font-size:.85rem;display:flex}.word-list{margin:0;padding:0;list-style:none}.word-item{background:var(--bg);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px;padding:14px 16px;transition:border-color .2s;display:flex}.word-item:hover{border-color:var(--accent)}.word-item-empty{text-align:center;color:var(--text);opacity:.6;align-items:center;padding:24px 16px;font-size:.9rem}.word-key{color:var(--text-h);letter-spacing:.5px;flex-shrink:0;font-size:1.2rem;font-weight:600}.word-value{color:var(--text);text-align:right;flex:1;font-size:.95rem}.word-tags{color:var(--accent);background:var(--accent-light);border-radius:4px;flex-basis:100%;order:1;align-self:flex-start;margin-top:2px;padding:2px 8px;font-size:.7rem;font-weight:500}.placeholder-icon{opacity:.6;font-size:2rem}.app-nav{border-top:1px solid var(--border);background:var(--card-bg);z-index:10;padding-bottom:env(safe-area-inset-bottom);display:flex;position:sticky;bottom:0}.nav-btn{font-family:var(--sans);min-height:52px;color:var(--text);cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation;background:0 0;border:none;flex:1;padding:.75rem .5rem;font-size:.85rem;font-weight:600;transition:all .2s}.nav-btn.active{color:var(--accent);background:var(--accent-light)}.nav-btn:hover{color:var(--accent)}.sets-layout{flex:1;gap:0;min-height:0;display:flex}.sets-list{border-right:1px solid var(--border);flex:1;margin:0;padding:0;list-style:none;overflow-y:auto}.sets-list li{cursor:pointer;border-bottom:1px solid var(--border);min-height:48px;color:var(--text-h);-webkit-tap-highlight-color:transparent;padding:14px;font-weight:500;transition:background .15s}.sets-list li:last-child{border-bottom:none}.sets-list li:hover{background:var(--accent-light)}.sets-list li.selected{background:var(--accent-light);color:var(--accent)}.sets-detail{flex:1;padding:14px;overflow-y:auto}.sets-detail h3{color:var(--text-h);margin:0 0 12px;font-size:1rem}.sets-detail p{color:var(--text);margin:0 0 6px;font-size:.85rem}.sets-detail .mode-select{border:1px solid var(--border);background:var(--bg);width:100%;min-height:48px;color:var(--text-h);border-radius:8px;margin:10px 0;padding:10px;font-size:.9rem}.sets-detail .btn{width:100%;margin-top:8px}@media (width<=400px){.sets-layout{flex-direction:column}.sets-list{border-right:none;border-bottom:1px solid var(--border);max-height:200px}}.training-header{justify-content:space-between;align-items:center;padding:.5rem 0;display:flex}.training-card{background:var(--card-bg);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:16px;flex-direction:column;flex:1;justify-content:center;min-height:200px;padding:2rem 1.5rem;display:flex}.training-content{text-align:center}.training-field{color:var(--text-h);padding:.5rem 0;font-size:1.5rem;font-weight:600;line-height:1.4}.training-side{padding:.5rem 0}.training-side-back .training-field{color:var(--accent);font-weight:500}.training-divider{border:none;border-top:1px solid var(--border);margin:.75rem 0}.training-actions{padding:.75rem 0}.training-vote{grid-template-columns:1fr 1fr;gap:.5rem;display:grid}.vote-btn{min-height:52px;padding:.75rem .5rem;font-size:.85rem}.vote-easy{color:#16a34a;border-color:#16a34a}.vote-ok{color:#ca8a04;border-color:#ca8a04}.vote-hard{color:#ea580c;border-color:#ea580c}.vote-none{color:#dc2626;border-color:#dc2626}@media (prefers-color-scheme:dark){.vote-easy{color:#4ade80;border-color:#4ade80}.vote-ok{color:#facc15;border-color:#facc15}.vote-hard{color:#fb923c;border-color:#fb923c}.vote-none{color:#f87171;border-color:#f87171}}