:root{--bg:#f6f7fb;--card:#fff;--text:#19202a;--muted:#667085;--primary:#1463ff;--border:#e5e7eb;--danger:#c0392b;--success:#0f8a5f}
*{box-sizing:border-box}body{margin:0;font-family:Tahoma,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}.landing{min-height:100vh;background:linear-gradient(135deg,#102a43,#1463ff);color:#fff}.landing .wrap{max-width:1120px;margin:auto;padding:40px 20px}.landing header{display:flex;justify-content:space-between;align-items:center}.landing .hero{padding:90px 0;max-width:780px}.landing h1{font-size:46px;margin:0 0 15px}.landing p{font-size:19px;color:#e6eefc}.landing .features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.landing .feature{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);border-radius:18px;padding:18px}.app-shell{display:flex;min-height:100vh}.sidebar{width:260px;background:#111827;color:#fff;padding:20px;position:sticky;top:0;height:100vh;overflow:auto}.brand{display:flex;gap:12px;align-items:center;margin-bottom:25px}.brand small{display:block;color:#b6becd}.logo-box{width:46px;height:46px;border-radius:14px;background:#2563eb;display:flex;align-items:center;justify-content:center;font-weight:bold}.sidebar nav a{display:block;color:#e5e7eb;text-decoration:none;padding:10px 12px;border-radius:10px;margin-bottom:4px}.sidebar nav a:hover{background:#1f2937}.main{flex:1}.topbar{background:#fff;border-bottom:1px solid var(--border);padding:18px 24px;display:flex;justify-content:space-between;align-items:center}.topbar h1{margin:0;font-size:24px}.topbar p{margin:3px 0 0;color:var(--muted)}.content{padding:24px}.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:20px;margin-bottom:18px;box-shadow:0 6px 20px rgba(16,24,40,.04)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.stat{padding:18px;border:1px solid var(--border);background:#fff;border-radius:16px}.stat strong{display:block;font-size:24px}.stat span{color:var(--muted)}label{display:block;margin:10px 0 6px;font-weight:bold}input,select,textarea{width:100%;padding:11px;border:1px solid var(--border);border-radius:10px;background:#fff;font-family:inherit}textarea{min-height:90px}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}.btn,button{display:inline-block;border:0;background:var(--primary);color:#fff;padding:10px 16px;border-radius:10px;text-decoration:none;font-family:inherit;cursor:pointer}.btn.secondary{background:#eef2ff;color:#173a8a}.btn.danger{background:var(--danger)}.btn.success{background:var(--success)}.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:10px;border-bottom:1px solid var(--border);text-align:right;vertical-align:top}th{background:#f9fafb}.alert{padding:12px 14px;border-radius:10px;margin-bottom:14px}.alert.success{background:#e8fff5;color:#06724d}.alert.error{background:#fff0f0;color:#a51f1f}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#0f172a}.login-card{width:420px;max-width:92%;background:#fff;border-radius:20px;padding:28px;box-shadow:0 25px 80px rgba(0,0,0,.25)}.login-card h1{margin:0 0 8px}.muted{color:var(--muted)}.badge{display:inline-block;padding:3px 8px;border-radius:999px;background:#eef2ff;color:#173a8a;font-size:12px}.file-link{color:#1463ff;text-decoration:none}.footer-note{margin-top:18px;color:var(--muted);font-size:13px}@media(max-width:820px){.app-shell{display:block}.sidebar{width:100%;height:auto;position:relative}.topbar{gap:14px}.landing h1{font-size:34px}}
.btn.small,button.small{padding:6px 10px;border-radius:8px;font-size:13px}.inline-form{display:inline;margin:0}.actions-table{display:flex;gap:6px;flex-wrap:wrap}.btn.warn{background:#f59e0b;color:#111827}.badge.deleted{background:#fee2e2;color:#991b1b}.hint{font-size:13px;color:var(--muted);margin-top:6px}input[type=file]{background:#f9fafb}.danger-zone{border-color:#fecaca;background:#fff7f7}@media(max-width:1000px){.content{padding:16px}.sidebar{width:235px}}.note-box{background:#f8fafc;border:1px solid #e2e8f0;border-radius:14px;padding:12px 14px;margin-top:10px;line-height:1.8}
.note-box code{display:block;direction:ltr;text-align:left;background:#0f172a;color:#e2e8f0;border-radius:10px;padding:10px;margin-top:8px;overflow:auto;white-space:nowrap}
.note-box small{display:block;color:#64748b;margin-top:6px}
.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(max-width:900px){.grid.two{grid-template-columns:1fr}}