:root{--bg:#f4f6f8;--panel:#fff;--text:#1f2937;--muted:#6b7280;--line:#e5e7eb;--primary:#2563eb;--danger:#dc2626;--success:#16a34a;--warning:#d97706;--info:#0891b2}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--primary);text-decoration:none}.app{display:flex;min-height:100vh}.sidebar{width:250px;background:#111827;color:#fff;padding:18px;position:fixed;top:0;bottom:0;left:0;overflow:auto}.brand{font-size:19px;font-weight:700;margin-bottom:20px}.sidebar nav a{display:block;color:#d1d5db;padding:10px 12px;border-radius:8px;margin:3px 0}.sidebar nav a:hover{background:#1f2937;color:#fff}.main{margin-left:250px;width:calc(100% - 250px)}.main-full{margin-left:0;width:100%}.topbar{height:62px;background:var(--panel);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 24px;position:sticky;top:0;z-index:5}.content{padding:24px}.userbar{font-size:14px;color:var(--muted)}.userbar a{margin-left:12px}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:18px;box-shadow:0 1px 2px rgba(0,0,0,.03)}.card h2{margin:0 0 16px;font-size:20px}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.stat{padding:16px;border:1px solid var(--line);border-radius:12px;background:#fafafa}.stat .num{font-size:28px;font-weight:700}.stat .label{color:var(--muted);font-size:13px}.form-row{margin-bottom:14px}label{display:block;font-weight:600;margin-bottom:6px}input,select,textarea{width:100%;padding:10px;border:1px solid #cbd5e1;border-radius:9px;background:#fff;font-size:14px}textarea{min-height:110px}.btn{display:inline-block;border:0;border-radius:9px;padding:10px 14px;background:var(--primary);color:#fff;cursor:pointer;font-weight:600}.btn:hover{opacity:.95}.btn-secondary{background:#475569}.btn-danger{background:var(--danger)}.btn-light{background:#e5e7eb;color:#111827}.actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.table{width:100%;border-collapse:collapse}.table th,.table td{border-bottom:1px solid var(--line);padding:10px;text-align:left;vertical-align:top}.table th{font-size:13px;color:#4b5563;background:#f9fafb}.badge{display:inline-block;padding:4px 8px;border-radius:999px;font-size:12px;background:#e5e7eb;color:#111827}.badge-success{background:#dcfce7;color:#166534}.badge-danger{background:#fee2e2;color:#991b1b}.badge-warning{background:#fef3c7;color:#92400e}.badge-info{background:#cffafe;color:#155e75}.badge-muted{background:#e5e7eb;color:#4b5563}.alert{padding:12px 14px;border-radius:10px;margin-bottom:14px}.alert-success{background:#dcfce7;color:#166534}.alert-danger{background:#fee2e2;color:#991b1b}.alert-warning{background:#fef3c7;color:#92400e}.alert-info{background:#dbeafe;color:#1e40af}.small{font-size:13px;color:var(--muted)}.login-wrap{max-width:430px;margin:8vh auto}.media-thumb{width:100px;max-height:70px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}.code{font-family:Consolas,monospace;background:#f3f4f6;padding:2px 5px;border-radius:4px}.help{font-size:13px;color:var(--muted);line-height:1.45}.checkbox-list{border:1px solid var(--line);border-radius:10px;padding:10px;max-height:300px;overflow:auto}.inline{display:flex;gap:8px;align-items:center}.inline input[type=checkbox]{width:auto}.message{border-left:4px solid #cbd5e1;padding:10px 12px;margin:10px 0;background:#f8fafc}.message.outgoing{border-left-color:var(--primary)}@media (max-width:900px){.sidebar{position:static;width:100%}.app{display:block}.main{margin-left:0;width:100%}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.topbar{position:static}}
.media-preview{max-width:100%;max-height:360px;border-radius:12px;border:1px solid var(--line);object-fit:contain;background:#f9fafb}.video-preview{width:100%;max-height:360px;border-radius:12px;border:1px solid var(--line);background:#000}.calendar-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px;margin-top:10px}.calendar-head div{font-weight:700;color:#4b5563;text-align:center;background:#f9fafb;border:1px solid var(--line);border-radius:8px;padding:8px}.calendar-day{min-height:120px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px}.calendar-day.empty{background:#f9fafb}.calendar-date{font-weight:700;margin-bottom:6px;color:#374151}.calendar-item{font-size:12px;background:#eef2ff;border:1px solid #c7d2fe;border-radius:8px;padding:6px;margin-bottom:5px;line-height:1.35}.approval-form textarea{min-height:70px}@media(max-width:900px){.calendar-grid{grid-template-columns:1fr}.calendar-head{display:none}.calendar-day.empty{display:none}}
.inline-form{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.inline-form input{min-width:180px;width:auto}