:root{--bg:#f4f6f8;--panel:#fff;--text:#16202a;--muted:#6b7785;--line:#e5e9ee;--brand:#ff6b00;--dark:#111820;--ok:#0f9d58;--danger:#c62828;--warn:#a86500}
*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--text)}
a{text-decoration:none;color:inherit}.app-shell{min-height:100vh;display:grid;grid-template-columns:250px 1fr}
.sidebar{background:var(--dark);color:#fff;padding:24px 18px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:32px}.brand-mark{width:42px;height:42px;border-radius:12px;background:var(--brand);display:grid;place-items:center;font-weight:900;font-size:22px}.brand span{display:block;font-size:12px;color:#aab4bf;margin-top:2px}
nav{display:grid;gap:8px}nav a{padding:12px 14px;border-radius:10px;color:#dfe6ed}nav a:hover{background:#202b36;color:#fff}
.sidebar-bottom{margin-top:auto;display:grid;gap:5px;color:#aab4bf}.sidebar-bottom a{margin-top:8px;color:#fff}
.main{padding:30px;min-width:0}.topbar{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:24px}.topbar h1{margin:0;font-size:28px}.topbar p{margin:6px 0 0;color:var(--muted)}
.grid{display:grid;gap:18px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 4px 14px rgba(0,0,0,.03)}
.metric strong{display:block;font-size:30px}.metric span{color:var(--muted);font-size:13px}
.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:13px 10px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}.table th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 14px;border:0;border-radius:10px;background:var(--brand);color:#fff;font-weight:700;cursor:pointer}.btn:hover{filter:brightness(.95)}.btn-outline{background:#fff;color:var(--text);border:1px solid var(--line)}.btn-danger{background:var(--danger)}.btn-small{padding:7px 10px;font-size:12px}
.actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:18px}
.input,select,textarea{width:100%;padding:11px 12px;border:1px solid #ccd4dc;border-radius:10px;background:#fff;font:inherit}.field{display:grid;gap:7px;margin-bottom:14px}.field label{font-size:13px;font-weight:700}.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.alert{padding:12px 14px;border-radius:10px;margin-bottom:15px}.alert.success{background:#e9f7ef;color:#176b3a}.alert.error{background:#fdecec;color:#8a1f1f}.alert.info{background:#edf5ff;color:#245b91}
.badge{display:inline-flex;padding:5px 8px;border-radius:999px;font-size:11px;font-weight:800;background:#eef1f4;color:#44505d}.badge.ok{background:#e7f6ed;color:#15723b}.badge.off{background:#fbeaea;color:#9a2a2a}
.preview-logo{width:64px;height:64px;object-fit:contain;border:1px solid var(--line);border-radius:10px;background:#fff}
.media-thumb{width:100px;height:62px;object-fit:cover;border-radius:8px;background:#111}.section-title{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px}.section-title h2{font-size:18px;margin:0}
.checkbox-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.check-card{border:1px solid var(--line);border-radius:10px;padding:10px;display:flex;gap:8px;align-items:center}
.login-page{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#0c1117,#1b252f)}.login-card{width:min(430px,92vw);background:#fff;border-radius:20px;padding:30px}.login-card h1{margin:0}.muted{color:var(--muted)}.help{font-size:12px;color:var(--muted)}
@media(max-width:1000px){.grid-4{grid-template-columns:repeat(2,1fr)}.checkbox-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.app-shell{grid-template-columns:1fr}.sidebar{position:relative;height:auto}.main{padding:18px}.grid-4,.grid-2,.form-row,.checkbox-grid{grid-template-columns:1fr}.topbar{align-items:flex-start;flex-direction:column}}