:root{--bg: #f5f7fa;--surface: #ffffff;--surface-2: #eef2f7;--border: #d8dee8;--text: #1f2a37;--text-muted: #6b7280;--primary: #3b5bdb;--primary-600: #2f49b3;--primary-soft: #e7edff;--accent: #0ca678;--danger: #e03131;--warning: #f59f00;--shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 1px 2px rgba(15, 23, 42, .04);--shadow-lg: 0 10px 30px rgba(15, 23, 42, .12);--radius: 10px;--radius-sm: 7px;--font: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;line-height:1.45;-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.btn{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font-weight:500;transition:all .15s ease}.btn:hover{background:var(--surface-2)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-600)}.btn-ghost{border-color:transparent;background:transparent}.btn-ghost:hover{background:var(--surface-2)}input,select{font-family:inherit;font-size:13px;padding:7px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);outline:none;transition:border-color .15s,box-shadow .15s}input:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.muted{color:var(--text-muted)}.spinner{width:16px;height:16px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:#c7cedb;border-radius:8px}::-webkit-scrollbar-track{background:transparent}