:root{--bg: #0b0b26;--surface: #151538;--border: #2d2d5a;--primary: #8b5cf6;--primary-glow: rgba(139, 92, 246, .45);--text: #f3f4f6;--muted: #a1a1c2;--danger: #f87171;--success: #4ade80}*{box-sizing:border-box}body{margin:0;font-family:Cairo,system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}a{color:var(--primary);text-decoration:none}.layout{display:grid;grid-template-columns:240px 1fr;min-height:100vh}@media(max-width:768px){.layout{grid-template-columns:1fr}.sidebar{flex-direction:row;flex-wrap:wrap;gap:.5rem}}.sidebar{background:var(--surface);border-left:1px solid var(--border);padding:1.25rem;display:flex;flex-direction:column;gap:.5rem}.sidebar h1{font-size:1.1rem;margin:0 0 1rem;color:var(--primary)}.sidebar a{padding:.6rem .75rem;border-radius:10px;color:var(--text)}.sidebar a.active{background:var(--primary);box-shadow:0 0 20px var(--primary-glow)}.main{padding:1.25rem;max-width:1100px}.card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:1rem;margin-bottom:1rem}.btn{border:none;border-radius:10px;padding:.55rem 1rem;font-family:inherit;cursor:pointer;font-weight:600}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 0 16px var(--primary-glow)}.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-danger{background:var(--danger);color:#111}input,select,textarea{width:100%;padding:.55rem .75rem;border-radius:10px;border:1px solid var(--border);background:#0f0f2e;color:var(--text);font-family:inherit}label{display:block;margin-bottom:.35rem;color:var(--muted);font-size:.9rem}.field{margin-bottom:.85rem}.row{display:flex;gap:.75rem;flex-wrap:wrap;align-items:center}.flash{padding:.75rem;border-radius:10px;margin-bottom:1rem}.flash.ok{background:#4ade8026;color:var(--success)}.flash.err{background:#f8717126;color:var(--danger)}table{width:100%;border-collapse:collapse}th,td{text-align:right;padding:.6rem;border-bottom:1px solid var(--border)}.badge{display:inline-block;padding:.2rem .5rem;border-radius:999px;font-size:.75rem}.badge.on{background:#4ade8033;color:var(--success)}.badge.off{background:#f8717133;color:var(--danger)}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:1rem}.login-card{width:min(400px,100%)}.cover-preview{width:120px;height:120px;object-fit:cover;border-radius:12px;border:1px solid var(--border)}