:root{--bg: #f4f3f9;--bg-glow-1: rgba(124, 58, 237, .1);--bg-glow-2: rgba(59, 130, 246, .08);--surface: #ffffff;--surface-2: #faf9ff;--border: #e6e4f0;--border-strong: #d6d3e6;--text: #1a1722;--muted: #6b6779;--primary: #7c3aed;--primary-hover: #6d28d9;--primary-fg: #ffffff;--primary-soft: rgba(124, 58, 237, .1);--primary-glow: rgba(124, 58, 237, .28);--success: #16a34a;--error: #e11d48;--warning: #d97706;--code-bg: #f3f1fb;--pill-bg: #efedf7;--hover-bg: #f2f0fa;--bar-bg: #e8e6f2;--pill-matching: #9333ea;--pill-sequence: #2563eb;--tint-primary: rgba(124, 58, 237, .08);--tint-success: rgba(22, 163, 74, .1);--tint-error: rgba(225, 29, 72, .1);--tint-warning: rgba(217, 119, 6, .1);--tint-matching:rgba(147, 51, 234, .13);--tint-info: rgba(37, 99, 235, .13);--tint-primary-strong: rgba(124, 58, 237, .15);--tint-warning-strong: rgba(217, 119, 6, .15);--tint-success-strong: rgba(22, 163, 74, .15);--shadow-card: 0 1px 2px rgba(20, 16, 40, .04), 0 8px 24px rgba(20, 16, 40, .05);--radius: 16px;color-scheme:light}[data-theme=dark]{--bg: #0a0a12;--bg-glow-1: rgba(124, 92, 246, .18);--bg-glow-2: rgba(56, 70, 160, .14);--surface: #15141f;--surface-2: #1c1b29;--border: #2a2838;--border-strong: #3a3750;--text: #ececf3;--muted: #9b98b3;--primary: #8b5cf6;--primary-hover: #9d75ff;--primary-fg: #ffffff;--primary-soft: rgba(139, 92, 246, .16);--primary-glow: rgba(139, 92, 246, .4);--success: #34d399;--error: #fb5d6b;--warning: #f5b14a;--code-bg: #12111c;--pill-bg: #242233;--hover-bg: #1f1d2c;--bar-bg: #232132;--pill-matching: #c4a3ff;--pill-sequence: #7fb1ff;--tint-primary: rgba(139, 92, 246, .14);--tint-success: rgba(52, 211, 153, .14);--tint-error: rgba(251, 93, 107, .15);--tint-warning: rgba(245, 177, 74, .16);--tint-matching:rgba(196, 163, 255, .16);--tint-info: rgba(127, 177, 255, .16);--tint-primary-strong: rgba(139, 92, 246, .22);--tint-warning-strong: rgba(245, 177, 74, .22);--tint-success-strong: rgba(52, 211, 153, .2);--shadow-card: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px rgba(0, 0, 0, .35);--radius: 16px;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.55 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:0;background:radial-gradient(800px 460px at 50% -120px,var(--bg-glow-1),transparent 70%),radial-gradient(700px 420px at 85% 8%,var(--bg-glow-2),transparent 65%)}#app{min-height:100vh;position:relative;z-index:1}.container{max-width:880px;margin:0 auto;padding:28px 24px 64px}h1{font-size:30px;line-height:1.15;margin:0 0 8px;letter-spacing:-.02em}h2{font-size:22px;margin:0 0 8px;letter-spacing:-.01em}h3{font-size:17px;margin:16px 0 8px;letter-spacing:-.01em}.muted{color:var(--muted)}.error{color:var(--error)}.success{color:var(--success)}.warning{color:var(--warning)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;margin-bottom:16px;box-shadow:var(--shadow-card)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 18px;border-radius:12px;border:1px solid var(--border-strong);background:var(--surface-2);color:var(--text);font:inherit;font-weight:600;cursor:pointer;text-decoration:none;transition:background .15s,border-color .15s,transform .06s,box-shadow .15s;-webkit-tap-highlight-color:transparent}.btn:hover:not(:disabled){background:var(--hover-bg);border-color:var(--primary)}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.primary{background:var(--primary);color:var(--primary-fg);border-color:var(--primary);box-shadow:0 6px 18px -6px var(--primary-glow)}.btn.primary:hover:not(:disabled){background:var(--primary-hover);border-color:var(--primary-hover)}.btn.success{background:var(--success);color:#fff;border-color:var(--success)}.btn.error{background:var(--error);color:#fff;border-color:var(--error)}.btn.warning{background:var(--warning);color:#fff;border-color:var(--warning)}.btn.lg{padding:14px 22px;font-size:16px;border-radius:13px}.btn.block{width:100%}.btn-row{display:flex;gap:10px;flex-wrap:wrap}.hero{text-align:center;padding:34px 26px;position:relative;overflow:hidden}.hero-badge{display:inline-block;padding:6px 14px;border-radius:999px;background:var(--primary-soft);color:var(--primary);border:1px solid var(--primary);font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:18px}.hero-title{font-size:46px;font-weight:800;letter-spacing:-.03em;line-height:1.05;margin:0 0 12px;color:var(--text);background:linear-gradient(180deg,var(--text),var(--primary));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.hero-sub{font-size:15px;margin:0 0 10px}.hero-sub strong{color:var(--text)}.hero-desc{color:var(--muted);max-width:560px;margin:0 auto 22px;font-size:15px}.feature-list{display:flex;flex-direction:column;gap:14px;text-align:left;background:var(--surface-2);border:1px solid var(--border);border-radius:14px;padding:18px;margin:0 auto 22px;max-width:620px}.feature{display:flex;gap:12px;align-items:flex-start}.feature-ico{flex:0 0 auto;width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:17px;background:var(--primary-soft);border:1px solid var(--border)}.feature-txt{font-size:14px;line-height:1.5}.feature-txt b{color:var(--text)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px}.stat-tile{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:14px 16px}.stat-tile .label{font-size:12px;color:var(--muted);margin-bottom:4px}.stat-tile .value{font-size:26px;font-weight:700;letter-spacing:-.02em}.mode-card{display:flex;align-items:center;gap:14px;padding:16px;border:1px solid var(--border);border-radius:14px;background:var(--surface-2);text-decoration:none;color:inherit;transition:border-color .15s,background .15s,transform .06s;margin-bottom:10px}.mode-card:hover{border-color:var(--primary);background:var(--hover-bg)}.mode-card:active{transform:translateY(1px)}.mode-ico{flex:0 0 auto;width:42px;height:42px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;font-size:20px;background:var(--primary-soft);border:1px solid var(--border)}.mode-body{flex:1;min-width:0}.mode-title{font-weight:700;display:flex;align-items:center;gap:8px}.mode-desc{font-size:13px;color:var(--muted);margin-top:2px}.mode-arrow{color:var(--muted);flex:0 0 auto}.option{display:flex;align-items:center;gap:12px;padding:14px 16px;border:1px solid var(--border);border-radius:13px;margin-bottom:10px;cursor:pointer;background:var(--surface-2);transition:border-color .15s,background .15s,transform .06s}.option:hover{border-color:var(--primary)}.option:active{transform:translateY(1px)}.option.selected{border-color:var(--primary);background:var(--tint-primary)}.option.correct{border-color:var(--success);background:var(--tint-success)}.option.wrong{border-color:var(--error);background:var(--tint-error)}.option-key{flex:0 0 auto;width:30px;height:30px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;background:var(--pill-bg);color:var(--muted);border:1px solid var(--border-strong);transition:background .15s,color .15s,border-color .15s}.option.selected .option-key{background:var(--primary);color:#fff;border-color:var(--primary)}.option.correct .option-key{background:var(--success);color:#fff;border-color:var(--success)}.option.wrong .option-key{background:var(--error);color:#fff;border-color:var(--error)}.option-text{flex:1}.statement{font-size:18px;line-height:1.5;font-weight:600;letter-spacing:-.01em;white-space:pre-wrap;margin-bottom:18px}.code{background:var(--code-bg);border-radius:8px;padding:8px 10px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;white-space:pre-wrap;font-size:14px}.timer{font-variant-numeric:tabular-nums;font-weight:700;font-size:18px;padding:6px 12px;border-radius:10px;background:var(--surface-2);border:1px solid var(--border)}.timer.warning{color:var(--warning);border-color:var(--warning)}.timer.danger{color:var(--error);border-color:var(--error)}.bar{height:8px;background:var(--bar-bg);border-radius:999px;overflow:hidden}.bar-fill{height:100%;background:linear-gradient(90deg,var(--primary),#6aa0ff);border-radius:999px;transition:width .3s}.progress-dots{display:flex;flex-wrap:wrap;gap:6px;align-items:center}.dot{width:10px;height:10px;border-radius:50%;background:var(--bar-bg);transition:background .2s,transform .2s}.dot.done{background:var(--primary)}.dot.current{background:var(--primary);box-shadow:0 0 0 4px var(--primary-soft);transform:scale(1.15)}.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px;align-items:center}.filter-group{margin-bottom:14px}.filter-label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;font-weight:600}.tab{display:inline-flex;align-items:center;padding:7px 13px;border:1px solid var(--border);border-radius:999px;background:var(--surface-2);cursor:pointer;font-size:14px;white-space:nowrap;-webkit-user-select:none;user-select:none;line-height:1.2;transition:background .15s,border-color .15s,color .15s}.tab:hover{background:var(--hover-bg);border-color:var(--primary)}.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.input,.textarea{width:100%;border:1px solid var(--border-strong);border-radius:12px;padding:11px 13px;font:inherit;background:var(--surface-2);color:var(--text);transition:border-color .15s,box-shadow .15s}.input:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}.textarea{min-height:96px;resize:vertical;font-family:inherit}.match-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media (max-width: 640px){.match-grid{grid-template-columns:1fr}}.match-cell{border:1px solid var(--border);border-radius:12px;padding:12px 14px;background:var(--surface-2);-webkit-user-select:none;user-select:none}.match-cell.draggable{cursor:grab}.match-cell.dragging{opacity:.5}.match-cell.drop-over{background:var(--tint-primary);border-color:var(--primary)}.match-cell.correct{border-color:var(--success);background:var(--tint-success)}.match-cell.wrong{border-color:var(--error);background:var(--tint-error)}.row{display:flex;gap:12px;align-items:center}.row.between{justify-content:space-between}.row.wrap{flex-wrap:wrap}.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--pill-bg);color:var(--muted)}.pill.single{background:var(--tint-primary-strong);color:var(--primary)}.pill.multi{background:var(--tint-warning-strong);color:var(--warning)}.pill.matching{background:var(--tint-matching);color:var(--pill-matching)}.pill.sequence{background:var(--tint-info);color:var(--pill-sequence)}.pill.open{background:var(--tint-success-strong);color:var(--success)}.pill.primary{background:var(--primary-soft);color:var(--primary)}.pill.success{background:var(--tint-success-strong);color:var(--success)}.pill.warning{background:var(--tint-warning-strong);color:var(--warning)}.pill.error{background:var(--tint-error);color:var(--error)}.pill.category{background:var(--primary-soft);color:var(--primary);border:1px solid var(--primary);text-transform:uppercase;letter-spacing:.08em;font-size:11px;padding:5px 12px}.nav{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:6px;padding:10px 20px;background:var(--surface);background:color-mix(in srgb,var(--surface) 80%,transparent);backdrop-filter:saturate(160%) blur(12px);-webkit-backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--border);flex-wrap:wrap}.nav .nav-brand{font-weight:800;letter-spacing:-.01em;margin-right:8px;display:inline-flex;align-items:center;gap:7px;text-decoration:none;color:var(--text);padding:4px 6px}.nav .nav-brand:hover{background:transparent;color:var(--text)}.nav-brand .logo{width:26px;height:26px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;font-size:14px;box-shadow:0 4px 12px -4px var(--primary-glow)}.nav a{text-decoration:none;color:var(--muted);padding:6px 11px;border-radius:9px;font-size:14px;font-weight:500;transition:background .15s,color .15s}.nav a:hover{background:var(--hover-bg);color:var(--text)}.nav a.router-link-active:not(.nav-brand){background:var(--primary-soft);color:var(--primary)}.score-big{font-size:64px;font-weight:800;text-align:center;margin:16px 0;letter-spacing:-.03em}.theme-toggle{margin-left:auto;display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--border);border-radius:999px;background:var(--surface-2);color:var(--text);cursor:pointer;font-size:13px;line-height:1.2;-webkit-user-select:none;user-select:none;transition:background .15s}.theme-toggle:hover{background:var(--hover-bg)}.theme-toggle .icon{font-size:16px}@media (max-width: 600px){.container{padding:18px 14px 56px}h1{font-size:24px}h2{font-size:19px}h3{font-size:16px}.card{padding:16px;border-radius:14px;margin-bottom:12px}.hero{padding:26px 16px}.hero-title{font-size:34px}.hero-desc{font-size:14px}.nav{gap:4px;padding:8px 12px;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.nav::-webkit-scrollbar{display:none}.nav a{white-space:nowrap;padding:6px 9px;font-size:13px}.nav-brand{flex:0 0 auto}.theme-toggle{margin-left:4px;flex:0 0 auto}.statement{font-size:16px}.option{padding:13px 14px}.score-big{font-size:52px}.btn.lg{width:100%}.input,.textarea,select.input{font-size:16px}}