:root{--bg: #f5f5f7;--surface: #ffffff;--surface-2: #ffffff;--surface-hover: #f9f9fb;--text: #1d1d1f;--text-secondary: #6e6e73;--text-tertiary: #86868b;--separator: rgba(0, 0, 0, .08);--accent: #0071e3;--accent-hover: #0077ed;--accent-text: #ffffff;--success: #34c759;--danger: #ff3b30;--warning: #ff9500;--focus-ring: rgba(0, 113, 227, .35);--radius-s: 8px;--radius-m: 12px;--radius-l: 16px;--radius-xl: 20px;--shadow-card: 0 1px 3px rgba(0, 0, 0, .04), 0 4px 14px rgba(0, 0, 0, .05);--shadow-pop: 0 4px 24px rgba(0, 0, 0, .12);--font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace}[data-theme=dark]{--bg: #000000;--surface: #1d1d1f;--surface-2: #2c2c2e;--surface-hover: #2a2a2c;--text: #f5f5f7;--text-secondary: #a1a1a6;--text-tertiary: #86868b;--separator: rgba(255, 255, 255, .1);--accent: #2997ff;--accent-hover: #40a3ff;--accent-text: #ffffff;--success: #30d158;--danger: #ff453a;--warning: #ff9f0a;--focus-ring: rgba(41, 151, 255, .45);--shadow-card: 0 1px 3px rgba(0, 0, 0, .4), 0 4px 14px rgba(0, 0, 0, .35);--shadow-pop: 0 4px 24px rgba(0, 0, 0, .55)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);font-size:17px;line-height:1.47;letter-spacing:-.011em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.022em;line-height:1.15}p{margin:0}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;font-size:inherit;color:inherit}.card{background:var(--surface);border-radius:var(--radius-l);box-shadow:var(--shadow-card);padding:24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:980px;padding:12px 22px;font-size:17px;font-weight:500;cursor:pointer;transition:background .15s ease,transform .05s ease,opacity .15s ease;text-decoration:none;white-space:nowrap}.btn:active{transform:scale(.98)}.btn:focus-visible{outline:none;box-shadow:0 0 0 4px var(--focus-ring)}.btn-primary{background:var(--accent);color:var(--accent-text)}.btn-primary:hover{background:var(--accent-hover);text-decoration:none}.btn-primary:disabled{opacity:.4;cursor:default;transform:none}.btn-secondary{background:transparent;color:var(--accent);border:1px solid var(--separator)}.btn-secondary:hover{background:var(--surface-hover);text-decoration:none}.btn-secondary:disabled{opacity:.4;cursor:default}.btn-ghost{background:transparent;color:var(--accent);padding:8px 12px}.btn-ghost:hover{background:var(--surface-hover);text-decoration:none}.field{width:100%;border:1px solid var(--separator);border-radius:var(--radius-m);background:var(--surface-2);color:var(--text);padding:13px 16px;font-size:17px;font-family:inherit;outline:none;transition:border-color .15s ease,box-shadow .15s ease}.field:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--focus-ring)}.field::placeholder{color:var(--text-tertiary)}.mono{font-family:var(--font-mono)}.text-secondary{color:var(--text-secondary)}.text-tertiary{color:var(--text-tertiary)}.error-text{color:var(--danger);font-size:15px}.divider{height:1px;background:var(--separator);border:none;margin:0}.spin{animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.page{max-width:980px;margin:0 auto;padding:32px 20px 80px}.page-title{font-size:34px;margin-bottom:6px}.page-subtitle{color:var(--text-secondary);font-size:19px;margin-bottom:28px}@media (max-width: 640px){body{font-size:16px}.page{padding:20px 16px 64px}.page-title{font-size:28px}.page-subtitle{font-size:17px;margin-bottom:20px}}