:root{--bg:#0b0f17;--panel:#121826;--border:#263244;--text:#e8edf5;--muted:#98a2b3;--accent:#ff8a00;--accent2:#ffb35c}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Inter,Segoe UI,Arial,sans-serif;background:radial-gradient(circle at top left,rgba(255,138,0,.12),transparent 28%),radial-gradient(circle at bottom right,rgba(59,130,246,.08),transparent 30%),var(--bg);color:var(--text);line-height:1.6}.app-layout{display:flex;min-height:100vh}.sidebar{width:280px;background:rgba(18,24,38,.95);border-right:1px solid var(--border);padding:18px 14px;position:sticky;top:0;height:100vh;overflow-y:auto;backdrop-filter:blur(14px);transition:width .25s ease}.sidebar-collapsed .sidebar{width:88px}.sidebar-brand{display:flex;align-items:center;gap:12px;padding:10px 10px 16px;text-decoration:none;color:var(--text)}.sidebar-logo{width:38px;height:38px;object-fit:cover;border-radius:10px;border:1px solid rgba(255,138,0,.35)}.sidebar-title{display:flex;flex-direction:column;line-height:1.15;white-space:nowrap}.sidebar-title strong{color:var(--accent);font-size:1.22rem}.sidebar-title span{color:var(--muted);font-size:.78rem}.sidebar-toggle{width:100%;margin:0 0 16px;padding:9px;border-radius:10px;border:1px solid var(--border);background:#0f1724;color:#e8edf5;cursor:pointer}.side-nav{display:flex;flex-direction:column;gap:6px}.nav-title{width:100%;display:flex;align-items:center;justify-content:space-between;border:0;background:transparent;color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;padding:8px 10px;cursor:pointer}.nav-group{display:flex;flex-direction:column;gap:3px}.nav-section.collapsed .nav-group{display:none}.nav-link{display:flex;align-items:center;gap:7px;padding:7px 9px;color:#cbd5e1;border-radius:12px;text-decoration:none;border:1px solid transparent;transition:.15s ease}.nav-link:hover,.nav-link.active{background:rgba(255,138,0,.12);border-color:rgba(255,138,0,.25);color:#fff}.nav-link.active{box-shadow:inset 3px 0 0 var(--accent)}.nav-icon{width:22px;text-align:center;flex:0 0 22px}.nav-text{white-space:nowrap}.sidebar-collapsed .sidebar-title,.sidebar-collapsed .nav-title span,.sidebar-collapsed .chevron,.sidebar-collapsed .nav-text{display:none}.sidebar-collapsed .sidebar-brand{justify-content:center}.sidebar-collapsed .nav-link{justify-content:center}.main{flex:1;min-width:0}.topbar{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 28px;background:rgba(11,15,23,.72);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:500;backdrop-filter:blur(14px)}.page-title{display:flex;flex-direction:column}.page-title strong{font-size:1.2rem;color:var(--accent)}.page-title span{color:var(--muted);font-size:.85rem}.user-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.user-pill{background:rgba(255,255,255,.05);border:1px solid var(--border);border-radius:999px;padding:8px 12px;color:#dbe4f0}.user-pill strong{color:#fff}.user-pill em{color:var(--accent2);font-style:normal}.btn,.auth-btn,.modal-card button,.content-page button{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:#111827;border:0;border-radius:10px;padding:9px 14px;font-weight:800;cursor:pointer;text-decoration:none;line-height:1.2}.btn.secondary,.modal-close{background:#263244!important;color:#e5e7eb!important}.content-wrap{width:min(1180px,94%);margin:0 auto;padding:26px 0 48px}.panel,.content-page,.card{background:linear-gradient(180deg,rgba(22,30,45,.96),rgba(18,24,38,.96));border:1px solid var(--border);border-radius:18px;padding:26px;margin:0 auto 22px;width:90%;box-shadow:0 16px 40px rgba(0,0,0,.18)}.container{width:100%;margin:0}.hero{display:none!important}h1,h2,h3{color:#fff;line-height:1.25}h1{font-size:2rem;margin-top:0}h2{font-size:1.45rem;margin-top:.4em;color:var(--accent);border-bottom:1px solid rgba(255,138,0,.24);padding-bottom:8px}h3{font-size:1.12rem;color:var(--accent2)}p{color:#d6dce7}li{margin:.25rem 0}code{color:var(--accent2)}.section-img{display:block;width:100%;max-width:1000px;margin:18px auto 28px;border-radius:14px;border:1px solid var(--border);background:#fff;box-shadow:0 10px 26px rgba(0,0,0,.24)}input,select,textarea,.modal-card input,.content-page input{width:100%;background:#0b1220;color:#fff;border:1px solid var(--border);border-radius:10px;padding:11px 12px;margin-top:6px}label{display:block;margin-top:12px;color:#dbe4f0;font-weight:700}.modal-overlay{display:none;position:fixed;inset:0;z-index:2000;background:rgba(0,0,0,.78);padding:20px}.modal-overlay.active{display:block}.modal-card{width:min(440px,94vw);margin:10vh auto;background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:24px;box-shadow:0 24px 70px rgba(0,0,0,.45)}.modal-actions{margin-top:18px;display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap}.alert{padding:12px 14px;border-radius:10px;border:1px solid var(--border);background:#111827;margin:14px 0}.alert.error{border-color:rgba(239,68,68,.6);color:#fecaca}.alert.success{border-color:rgba(34,197,94,.6);color:#bbf7d0}.admin-card{background:rgba(255,255,255,.035);border:1px solid var(--border);border-radius:14px;padding:18px;margin:16px 0}@media(max-width:900px){.app-layout{display:block}.sidebar{position:relative;width:100%;height:auto;border-right:0;border-bottom:1px solid var(--border)}.sidebar-collapsed .sidebar{width:100%}.sidebar-title,.nav-title span,.chevron,.nav-text{display:inline}.side-nav{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}.topbar{position:relative;padding:14px 18px;align-items:flex-start;flex-direction:column}.content-wrap{width:94%;padding-top:18px}}
.link-button{background:none;border:0;color:#ffb35c;text-decoration:underline;cursor:pointer;font:inherit;padding:0;}
.link-button:hover{color:#ffd08a;}

.api-table-wrap{overflow-x:auto;width:100%;margin:12px 0 22px}
.api-table{width:100%;border-collapse:collapse;font-size:.9rem;min-width:560px}
.api-table th,.api-table td{text-align:left;padding:9px 12px;border:1px solid var(--border)}
.api-table thead tr{background:rgba(255,138,0,.12)}
.api-table th{color:var(--accent);font-weight:700}
.api-table td{color:#d6dce7}
.api-table tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.api-table tbody tr:hover{background:rgba(255,138,0,.07)}
pre{background:#0b1220;border:1px solid var(--border);border-radius:10px;padding:14px 16px;overflow-x:auto;margin:10px 0 20px}
pre code{color:var(--accent2);font-size:.85rem;white-space:pre}
.nav-action{width:100%;appearance:none;background:transparent;border:1px solid transparent;color:inherit;font:inherit;text-align:left;cursor:pointer}
.modal-card-video{width:60vw;min-height:calc(60vw * 9 / 16 + 140px);max-height:90vh;max-width:none;margin:2vh auto;padding:24px;display:flex;flex-direction:column}
.modal-card-video .video-frame-wrap{margin:auto auto 0;width:100%;max-width:100%;aspect-ratio:16/9;flex:none;padding-top:0}
.video-frame-wrap{position:relative;width:100%;padding-top:56.25%;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:transparent}
.video-frame-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
@media(max-width:900px){.modal-card-video{width:60vw;min-height:calc(60vw * 9 / 16 + 120px);max-height:90vh;margin:2vh auto;padding:18px}}