:root {
  --bg: #0a0612;
  --surface: rgba(24, 16, 36, 0.85);
  --border: rgba(244, 114, 182, 0.15);
  --accent: #f472b6;
  --accent-2: #a78bfa;
  --text: #faf5ff;
  --muted: #c4b5fd;
  --success: #34d399;
  --danger: #f87171;
  --radius: 16px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'DM Sans', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse 70% 50% at 20% -10%, rgba(244, 114, 182, 0.15), transparent),
    radial-gradient(ellipse 50% 40% at 100% 100%, rgba(167, 139, 250, 0.12), transparent);
}

.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
}

.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}

.auth-card { width: 100%; max-width: 420px; padding: 2rem; }
.auth-brand { text-align: center; margin-bottom: 1.5rem; }
.auth-brand h1 { margin: 0.5rem 0 0; font-size: 1.5rem; }
.auth-brand p { margin: 0.25rem 0 0; color: var(--muted); font-size: 0.85rem; }
.auth-hint { text-align: center; margin-top: 1.5rem; font-size: 0.8rem; color: var(--muted); }
.form-error { color: var(--danger); text-align: center; font-size: 0.9rem; }

.brand-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center; font-size: 1.5rem;
  margin: 0 auto;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(244,114,182,0.2), rgba(167,139,250,0.2));
}
.brand-icon.rose { font-size: 1.75rem; }

.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 260px; flex-shrink: 0;
  background: rgba(12, 8, 20, 0.95);
  border-right: 1px solid var(--border);
  padding: 1.25rem;
  position: fixed; top: 0; left: 0; bottom: 0;
  transform: translateX(-100%);
  transition: transform 0.25s;
  z-index: 50;
  overflow-y: auto;
}
.sidebar.open { transform: translateX(0); }
@media (min-width: 1024px) {
  .sidebar { transform: none; position: sticky; height: 100vh; }
}

.brand { display: flex; gap: 0.75rem; align-items: center; margin-bottom: 1.5rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); }
.brand h1 { margin: 0; font-size: 1rem; }
.brand p { margin: 0; font-size: 0.65rem; color: var(--accent); text-transform: uppercase; letter-spacing: 0.08em; }

.nav { list-style: none; padding: 0; margin: 0; }
.nav a {
  display: block; padding: 0.6rem 0.75rem; border-radius: 10px;
  color: var(--muted); text-decoration: none; font-size: 0.9rem; margin-bottom: 0.2rem;
}
.nav a:hover, .nav a.active { background: rgba(244,114,182,0.1); color: var(--accent); }
.nav a.logout { color: var(--danger); margin-top: 1.5rem; }

.main-wrap { flex: 1; min-width: 0; }
@media (min-width: 1024px) { .main-wrap { margin-left: 0; } }

.topbar {
  display: flex; align-items: center; gap: 1rem;
  padding: 1rem 1.25rem; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: rgba(10,6,18,0.9); z-index: 30;
}
.topbar h2 { margin: 0; font-size: 1.1rem; }
.menu-btn {
  background: transparent; border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 0.4rem 0.6rem; cursor: pointer;
}
@media (min-width: 1024px) { .menu-btn { display: none; } }

.badge {
  margin-left: auto; font-size: 0.75rem; padding: 0.35rem 0.65rem;
  border-radius: 999px; background: rgba(244,114,182,0.15); color: var(--accent);
}
.badge-sm { font-size: 0.65rem; padding: 0.15rem 0.4rem; border-radius: 6px; margin-left: 0.5rem; }
.badge-sm.on { background: rgba(52,211,153,0.2); color: var(--success); }
.badge-sm.off { background: rgba(148,163,184,0.2); color: var(--muted); }

.content { padding: 1.25rem; max-width: 900px; }
.panel-section { display: none; }
.panel-section.active { display: block; }

.stats-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem; margin-bottom: 1rem;
}
.stat-card { padding: 1rem; }
.stat-label { display: block; font-size: 0.75rem; color: var(--muted); }
.stat-card strong { font-size: 1.75rem; }

.card { padding: 1.25rem; margin-bottom: 1rem; }
.card h3 { margin: 0 0 1rem; }

.form-grid { display: flex; flex-direction: column; gap: 0.75rem; }
.form-grid label { display: flex; flex-direction: column; gap: 0.35rem; font-size: 0.85rem; color: var(--muted); }
input, textarea {
  background: rgba(0,0,0,0.35); border: 1px solid var(--border);
  border-radius: 10px; padding: 0.65rem 0.85rem; color: var(--text); font: inherit;
}
input:focus, textarea:focus { outline: 2px solid rgba(244,114,182,0.35); }

.toggle-grid { display: flex; flex-direction: column; gap: 0.5rem; }
.toggle-field {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.65rem 0; border-bottom: 1px solid rgba(255,255,255,0.05);
}
.toggle-field span { color: var(--text); font-size: 0.9rem; }

.btn {
  border: none; border-radius: 10px; padding: 0.65rem 1rem;
  font: inherit; font-weight: 600; cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #1a0a24;
}
.btn-block { width: 100%; }
.btn-sm { padding: 0.35rem 0.6rem; font-size: 0.85rem; background: rgba(255,255,255,0.08); color: var(--text); }
.btn-sm.danger { color: var(--danger); }

.muted { color: var(--muted); font-size: 0.85rem; }
.tip { margin-top: 1rem; }

.rank-list { margin: 0; padding-left: 1.25rem; }
.rank-list li { display: flex; justify-content: space-between; padding: 0.35rem 0; }

.ad-list { margin: 1rem 0; }
.ad-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.75rem; border-radius: 10px; margin-bottom: 0.5rem;
  background: rgba(0,0,0,0.25); border: 1px solid var(--border);
}
.ad-actions { display: flex; gap: 0.35rem; }
.ad-form { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border); }

.toast {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  padding: 0.75rem 1.25rem; border-radius: 10px;
  background: var(--success); color: #042f1a; font-weight: 600;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4); z-index: 100;
}
.toast.error { background: var(--danger); color: #fff; }

code { background: rgba(0,0,0,0.35); padding: 0.15rem 0.4rem; border-radius: 4px; font-size: 0.85em; }