:root{--bg:#0f172a;--panel:#111827;--card:#ffffff;--text:#0f172a;--muted:#64748b;--line:#e5e7eb;--accent:#7c3aed;--accent2:#0ea5e9;--soft:#f8fafc}*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:#f1f5f9;color:var(--text)}a{color:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{width:260px;background:linear-gradient(180deg,#0f172a,#111827);color:#fff;padding:24px;position:fixed;inset:0 auto 0 0}.brand{display:flex;align-items:center;gap:10px;font-size:22px;margin-bottom:30px}.brand span{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;font-weight:800}.sidebar nav{display:grid;gap:8px}.sidebar a{padding:13px 14px;border-radius:14px;text-decoration:none;color:#dbeafe}.sidebar a:hover{background:rgba(255,255,255,.08)}.main{margin-left:260px;width:calc(100% - 260px);padding:28px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:26px}.topbar h1{margin:4px 0 0;font-size:28px}.topbar small,.muted{color:var(--muted)}.user{background:#fff;border:1px solid var(--line);padding:10px 14px;border-radius:999px}.card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:0 14px 40px rgba(15,23,42,.06);margin-bottom:18px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.stat{padding:22px;border-radius:20px;background:linear-gradient(180deg,#fff,#f8fafc);border:1px solid var(--line)}.stat strong{display:block;font-size:30px}.btn{border:0;background:linear-gradient(135deg,var(--accent),var(--accent2));color:white;padding:13px 18px;border-radius:14px;font-weight:700;text-decoration:none;display:inline-flex;align-items:center;gap:8px;cursor:pointer}.btn.secondary{background:#0f172a}.btn.light{background:#fff;color:#0f172a;border:1px solid var(--line)}.actions{display:flex;gap:8px;flex-wrap:wrap}.form-grid{display:grid;gap:16px}label{font-weight:700;display:grid;gap:8px}input,textarea,select{width:100%;padding:13px 14px;border:1px solid #cbd5e1;border-radius:14px;font:inherit;background:#fff}textarea{min-height:150px;resize:vertical}.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;padding:14px;border-bottom:1px solid var(--line);vertical-align:middle}.badge{padding:6px 10px;border-radius:999px;background:#eef2ff;color:#3730a3;font-size:12px;font-weight:700}.badge.error{background:#fee2e2;color:#991b1b}.badge.ok{background:#dcfce7;color:#166534}.login-page{display:grid;place-items:center;min-height:100vh;background:radial-gradient(circle at top,#1e293b,#020617)}.login-card{width:min(420px,92vw);background:#fff;border-radius:28px;padding:34px;box-shadow:0 30px 80px rgba(0,0,0,.28)}.preview-frame{width:100%;height:760px;border:1px solid var(--line);border-radius:18px;background:#fff}.alert{padding:14px 16px;border-radius:16px;margin-bottom:16px;background:#fff7ed;color:#9a3412;border:1px solid #fed7aa}.okmsg{padding:14px 16px;border-radius:16px;margin-bottom:16px;background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}.video-box video{width:100%;max-height:560px;border-radius:18px;background:#000}@media(max-width:900px){.sidebar{position:static;width:100%;}.app-shell{display:block}.main{margin:0;width:100%;padding:18px}.grid{grid-template-columns:1fr}.topbar{align-items:flex-start;gap:10px;flex-direction:column}}
.alert.success{background:#ecfdf5;color:#065f46;border-color:#a7f3d0}.alert.error{background:#fef2f2;color:#991b1b;border-color:#fecaca}.form{display:grid;gap:14px;max-width:760px}.form p{margin:0}.form .btn{width:max-content}

.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:12px}.btn.secondary{background:#eef2ff;color:#1f2a44;border:1px solid #d7def8}.btn.danger{background:#b91c1c;color:#fff}.btn.small{padding:7px 10px;font-size:12px;border-radius:10px}.table-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.table-actions form{margin:0}.form input[type="text"],.form input[type="email"]{width:100%}