:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --border: #2a2f3a;
  --text: #e8eaf0;
  --muted: #9399ab;
  --accent: #2f6fed;
  --accent-2: #1f4fb8;
  --danger: #e5484d;
  --success: #2fb380;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 230px; flex-shrink: 0; background: var(--panel); border-right: 1px solid var(--border);
  padding: 20px 14px; position: sticky; top: 0; height: 100vh;
}
.sidebar h1 { font-size: 15px; margin: 0 0 4px; }
.sidebar .sub { color: var(--muted); font-size: 12px; margin-bottom: 20px; }
.sidebar nav a {
  display: block; padding: 9px 10px; border-radius: 8px; color: var(--text); font-size: 14px; margin-bottom: 2px;
}
.sidebar nav a:hover { background: var(--panel-2); text-decoration: none; }
.sidebar nav a.active { background: var(--accent); color: white; }
.sidebar .logout { margin-top: 24px; }
.sidebar .logout button {
  width: 100%; background: transparent; color: var(--muted); border: 1px solid var(--border);
  padding: 8px; border-radius: 8px; cursor: pointer; font-size: 13px;
}
.sidebar .logout button:hover { color: var(--text); border-color: var(--muted); }

.main { flex: 1; padding: 28px 34px; max-width: 1100px; }
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.page-header h2 { margin: 0; font-size: 22px; }
.page-header p { color: var(--muted); margin: 4px 0 0; font-size: 13px; }

.btn {
  display: inline-block; background: var(--accent); color: white; padding: 9px 16px;
  border-radius: 8px; border: none; cursor: pointer; font-size: 14px; font-weight: 500;
}
.btn:hover { background: var(--accent-2); text-decoration: none; }
.btn.secondary { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); }
.btn.danger { background: transparent; border: 1px solid var(--danger); color: var(--danger); }
.btn.danger:hover { background: var(--danger); color: white; }
.btn.small { padding: 5px 10px; font-size: 12px; }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 20px; margin-bottom: 18px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
tr:hover td { background: var(--panel-2); }
img.thumb { width: 48px; height: 34px; object-fit: cover; border-radius: 4px; border: 1px solid var(--border); }

.badge { display: inline-block; padding: 2px 9px; border-radius: 100px; font-size: 11px; font-weight: 600; }
.badge.on { background: rgba(47,179,128,0.15); color: var(--success); }
.badge.off { background: rgba(229,72,77,0.15); color: var(--danger); }
.badge.category { background: rgba(47,111,237,0.15); color: var(--accent); }

form.stacked label { display: block; margin: 14px 0 6px; font-size: 13px; color: var(--muted); }
input[type=text], input[type=number], input[type=password], input[type=file], textarea, select {
  width: 100%; padding: 9px 11px; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: 14px; font-family: inherit;
}
textarea { min-height: 90px; resize: vertical; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0 16px; }
.checkbox-row { display: flex; align-items: center; gap: 8px; margin-top: 16px; }
.checkbox-row input { width: auto; }

.variant-row { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 0.9fr 0.9fr 0.9fr 1fr auto; gap: 6px; margin-bottom: 6px; align-items: center; }
.variant-row input, .variant-row select { padding: 7px 8px; font-size: 12px; }
.variant-header { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 0.9fr 0.9fr 0.9fr 1fr auto; gap: 6px; font-size: 11px; color: var(--muted); margin-bottom: 4px; text-transform: uppercase; }
.ev-variant-row { display: grid; grid-template-columns: 2fr 1fr auto; gap: 8px; margin-bottom: 6px; }

.remove-row { background: transparent; border: none; color: var(--danger); cursor: pointer; font-size: 16px; line-height: 1; padding: 4px; }
.add-row { margin-top: 6px; }

.alert { padding: 11px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 13px; }
.alert.error { background: rgba(229,72,77,0.12); color: #ff8b8e; border: 1px solid rgba(229,72,77,0.3); }
.alert.success { background: rgba(47,179,128,0.12); color: #6fe3b8; border: 1px solid rgba(47,179,128,0.3); }

.media-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.media-item { background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.media-item img { width: 100%; height: 100px; object-fit: cover; display: block; }
.media-item .meta { padding: 8px; font-size: 11px; color: var(--muted); word-break: break-all; }
.media-item .meta button { margin-top: 6px; }

.image-picker { display: flex; gap: 10px; align-items: flex-start; }
.image-picker .preview { width: 90px; height: 64px; object-fit: cover; border-radius: 6px; border: 1px solid var(--border); background: var(--panel-2); }

.dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
.stat .num { font-size: 30px; font-weight: 700; }
.stat .label { color: var(--muted); font-size: 13px; margin-top: 4px; }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-box { width: 340px; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 30px; }
.login-box h1 { font-size: 18px; margin: 0 0 4px; }
.login-box .sub { color: var(--muted); font-size: 13px; margin-bottom: 20px; }