:root{--accent: #2a78d6;--accent-hover: #3987e5;--surface-page: #f9f9f7;--surface-card: #fcfcfb;--surface-sidebar: #ffffff;--text-primary: #0b0b0b;--text-secondary: #52514e;--text-muted: #898781;--border: rgba(11, 11, 11, .1);--danger: #d64541;--danger-bg: #fbe4e2;--success: #0ca30c;--success-bg: #e6f6e6;--warning: #b3790c;--warning-bg: #fdf0d9;--radius-sm: 6px;--radius-md: 10px;--shadow-card: 0 1px 2px rgba(11, 11, 11, .06), 0 1px 8px rgba(11, 11, 11, .04)}@media(prefers-color-scheme:dark){:root{--accent: #3987e5;--accent-hover: #5b9eec;--surface-page: #0d0d0d;--surface-card: #1a1a19;--surface-sidebar: #161615;--text-primary: #ffffff;--text-secondary: #c3c2b7;--text-muted: #898781;--border: rgba(255, 255, 255, .1);--danger: #ff6b64;--danger-bg: rgba(214, 69, 65, .2);--success: #0ca30c;--success-bg: rgba(12, 163, 12, .16);--warning: #fab219;--warning-bg: rgba(250, 178, 25, .16);--shadow-card: 0 1px 2px rgba(0, 0, 0, .4), 0 1px 8px rgba(0, 0, 0, .3)}}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:var(--surface-page);color:var(--text-primary);-webkit-font-smoothing:antialiased}a{color:inherit}button{font-family:inherit}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.auth-loading{min-height:100vh;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:14px}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:100%;max-width:380px;background:var(--surface-card);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-card);padding:36px 32px;text-align:center}.login-card h1{font-size:20px;margin:0 0 6px}.login-card p.subtitle{color:var(--text-secondary);font-size:14px;margin:0 0 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a.active{background:var(--accent);color:#fff}.admin-main{flex:1;display:flex;flex-direction:column;min-width:0}.admin-topbar{height:60px;flex-shrink:0;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:var(--surface-card)}.admin-topbar .user-info{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-secondary)}.admin-content{flex:1;padding:28px 32px;max-width:1100px;width:100%;margin:0 auto}@media(min-width:1400px){.admin-content{max-width:1400px}}.page-header{margin-bottom:22px}.page-header h1{font-size:22px;margin:0 0 4px}.page-header p{color:var(--text-secondary);font-size:14px;margin:0}.card{background:var(--surface-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:22px;box-shadow:var(--shadow-card);margin-bottom:20px}.card h2{font-size:15px;margin:0 0 14px}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600}.badge-success{background:var(--success-bg);color:var(--success)}.badge-warning{background:var(--warning-bg);color:var(--warning)}.badge-danger{background:var(--danger-bg);color:var(--danger)}.badge-muted{background:var(--surface-page);color:var(--text-muted)}table.data-table{width:100%;border-collapse:collapse;font-size:14px}table.data-table th{text-align:left;color:var(--text-muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.02em;border-bottom:1px solid var(--border);padding:8px 10px}table.data-table td{border-bottom:1px solid var(--border);padding:9px 10px;vertical-align:top}table.data-table tr:last-child td{border-bottom:none}.dropzone{border:2px dashed var(--border);border-radius:var(--radius-md);padding:36px 20px;text-align:center;color:var(--text-secondary);font-size:14px;cursor:pointer;transition:border-color .12s ease,background-color .12s ease}.dropzone:hover,.dropzone.dragover{border-color:var(--accent);background:#2a78d60a}.dropzone input[type=file]{display:none}.empty-state{color:var(--text-muted);font-size:14px;text-align:center;padding:30px 10px}.actions-row{display:flex;gap:10px;justify-content:flex-end;margin-top:18px}.warning-list{margin:0;padding-left:18px;font-size:13px;color:var(--warning)}.warning-list li{margin-bottom:4px}.text-warning{color:var(--warning)}.text-danger{color:var(--danger)}.alert{border-left:4px solid transparent}.alert p{color:inherit}.alert--warning{border-left-color:var(--warning);color:var(--warning)}.alert--danger{border-left-color:var(--danger);color:var(--danger)}.alert--success{border-left-color:var(--success);color:var(--success)}.alert--muted{border-left-color:var(--border);color:var(--text-secondary)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:20px}.stat-card{background:var(--surface-card);border:1px solid 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