/* ─── Reset & Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0a0f;
  --bg2: #0f0f1a;
  --card: #1a1a2e;
  --card2: #16213e;
  --border: #2a2a4a;
  --primary: #7c3aed;
  --primary-hover: #6d28d9;
  --primary-light: rgba(124, 58, 237, 0.15);
  --accent: #a855f7;
  --success: #10b981;
  --success-light: rgba(16, 185, 129, 0.15);
  --danger: #ef4444;
  --danger-light: rgba(239, 68, 68, 0.15);
  --warning: #f59e0b;
  --warning-light: rgba(245, 158, 11, 0.15);
  --info: #3b82f6;
  --info-light: rgba(59, 130, 246, 0.15);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.6);
  --transition: 0.2s ease;
}

html { font-size: 15px; }

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--primary); }

/* ─── Scrollbar ────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ─── Typography ───────────────────────────────────────────────────────────── */
h1, h2, h3, h4 { font-weight: 600; line-height: 1.3; }
h1 { font-size: 1.8rem; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.1rem; }
small { font-size: 0.8rem; color: var(--text-muted); }

/* ─── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: var(--radius-sm);
  font-size: 0.875rem; font-weight: 500; cursor: pointer;
  border: 1px solid transparent; transition: all var(--transition);
  white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-secondary { background: var(--card2); color: var(--text); border-color: var(--border); }
.btn-secondary:hover:not(:disabled) { background: var(--border); }
.btn-danger { background: var(--danger-light); color: var(--danger); border-color: var(--danger); }
.btn-danger:hover:not(:disabled) { background: var(--danger); color: #fff; }
.btn-success { background: var(--success-light); color: var(--success); border-color: var(--success); }
.btn-success:hover:not(:disabled) { background: var(--success); color: #fff; }
.btn-sm { padding: 5px 12px; font-size: 0.8rem; }
.btn-icon { padding: 7px; border-radius: var(--radius-sm); }

.expiry-preset.active {
  background: var(--primary) !important;
  color: #fff !important;
  border-color: var(--primary) !important;
}

/* ─── Forms ────────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 0.875rem; color: var(--text-muted); font-weight: 500; }
.form-control {
  width: 100%; padding: 10px 14px;
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
  font-size: 0.9rem; transition: border-color var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.form-control::placeholder { color: var(--text-dim); }
select.form-control { cursor: pointer; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-hint { font-size: 0.78rem; color: var(--text-dim); margin-top: 4px; }

/* ─── Badges ───────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 20px;
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.3px;
}
.badge-active, .badge-success { background: var(--success-light); color: var(--success); }
.badge-paused, .badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-blocked, .badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-suspended { background: var(--danger-light); color: var(--danger); }
.badge-basic { background: var(--info-light); color: var(--info); }
.badge-premium { background: var(--primary-light); color: var(--accent); }
.badge-vip { background: rgba(245,158,11,0.15); color: var(--warning); }

/* ─── Cards ────────────────────────────────────────────────────────────────── */
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.card-header h3 { font-size: 1rem; }

/* ─── Tables ───────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
thead { background: var(--card2); }
thead th { padding: 12px 16px; text-align: left; font-weight: 600; color: var(--text-muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.5px; white-space: nowrap; }
tbody tr { border-top: 1px solid var(--border); transition: background var(--transition); }
tbody tr:hover { background: rgba(124,58,237,0.05); }
tbody td { padding: 12px 16px; color: var(--text); vertical-align: middle; }
.td-mono { font-family: 'Courier New', monospace; font-size: 0.82rem; color: var(--accent); }
.td-muted { color: var(--text-muted); font-size: 0.82rem; }

/* ─── Alerts ───────────────────────────────────────────────────────────────── */
.alert {
  padding: 12px 16px; border-radius: var(--radius-sm);
  font-size: 0.875rem; margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.alert-error { background: var(--danger-light); color: var(--danger); border: 1px solid rgba(239,68,68,0.3); }
.alert-success { background: var(--success-light); color: var(--success); border: 1px solid rgba(16,185,129,0.3); }
.alert-info { background: var(--info-light); color: var(--info); border: 1px solid rgba(59,130,246,0.3); }

/* ─── Login Page ───────────────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(124,58,237,0.15) 0%, transparent 60%), var(--bg);
  padding: 20px;
}
.login-box {
  width: 100%; max-width: 420px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 40px;
  box-shadow: var(--shadow-lg);
}
.login-logo {
  text-align: center; margin-bottom: 32px;
}
.login-logo .logo-icon {
  width: 56px; height: 56px; background: var(--primary-light);
  border: 1px solid var(--primary); border-radius: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.6rem; margin-bottom: 12px;
}
.login-logo h1 { font-size: 1.5rem; background: linear-gradient(135deg, #a855f7, #7c3aed); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.login-logo p { color: var(--text-muted); font-size: 0.875rem; margin-top: 4px; }
.login-box .btn-primary { width: 100%; justify-content: center; padding: 12px; font-size: 0.95rem; margin-top: 4px; }
.login-footer { text-align: center; margin-top: 20px; font-size: 0.8rem; color: var(--text-dim); }

/* ─── Dashboard Layout ─────────────────────────────────────────────────────── */
.dashboard { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: 240px; min-height: 100vh; background: var(--card);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; z-index: 100;
  transition: transform var(--transition);
}
.sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
}
.sidebar-logo .logo-icon {
  width: 36px; height: 36px; background: var(--primary-light);
  border: 1px solid var(--primary); border-radius: 8px;
  display: flex; align-items: center; justify-content: center; font-size: 1rem;
}
.sidebar-logo span { font-weight: 700; font-size: 1.1rem; background: linear-gradient(135deg, #a855f7, #7c3aed); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.sidebar-nav { flex: 1; padding: 12px 10px; overflow-y: auto; }
.nav-section { margin-bottom: 20px; }
.nav-section-title { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text-dim); padding: 0 10px; margin-bottom: 6px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--radius-sm);
  color: var(--text-muted); font-size: 0.875rem; font-weight: 500;
  cursor: pointer; transition: all var(--transition); margin-bottom: 2px;
  border: none; background: none; width: 100%; text-align: left;
}
.nav-item:hover { background: var(--primary-light); color: var(--text); }
.nav-item.active { background: var(--primary-light); color: var(--accent); border-left: 2px solid var(--primary); }
.nav-item .nav-icon { font-size: 1rem; width: 20px; text-align: center; }
.sidebar-footer { padding: 14px 10px; border-top: 1px solid var(--border); }
.admin-info { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: var(--radius-sm); }
.admin-avatar { width: 32px; height: 32px; background: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.85rem; color: #fff; flex-shrink: 0; }
.admin-name { font-size: 0.85rem; font-weight: 600; }
.admin-role { font-size: 0.72rem; color: var(--text-dim); }
.btn-logout { width: 100%; margin-top: 8px; justify-content: center; }

/* ─── Main Content ─────────────────────────────────────────────────────────── */
.main-content { margin-left: 240px; flex: 1; display: flex; flex-direction: column; min-height: 100vh; }
.topbar {
  background: var(--card); border-bottom: 1px solid var(--border);
  padding: 14px 28px; display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 50;
}
.topbar-title { font-size: 1.1rem; font-weight: 600; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.page-content { padding: 28px; flex: 1; }

/* ─── Stat Cards ───────────────────────────────────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
  display: flex; align-items: center; gap: 16px;
  transition: border-color var(--transition);
}
.stat-card:hover { border-color: var(--primary); }
.stat-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center; font-size: 1.4rem; flex-shrink: 0;
}
.stat-icon.purple { background: var(--primary-light); }
.stat-icon.green { background: var(--success-light); }
.stat-icon.blue { background: var(--info-light); }
.stat-icon.orange { background: var(--warning-light); }
.stat-value { font-size: 1.8rem; font-weight: 700; line-height: 1; }
.stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

/* ─── Section Header ───────────────────────────────────────────────────────── */
.section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; flex-wrap: wrap; gap: 10px;
}
.section-header h2 { font-size: 1.1rem; }
.section-filters { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.section-filters .form-control { width: auto; min-width: 160px; padding: 7px 12px; font-size: 0.85rem; }

/* ─── Empty State ──────────────────────────────────────────────────────────── */
.empty-state { text-align: center; padding: 48px 20px; color: var(--text-muted); }
.empty-state .empty-icon { font-size: 2.5rem; margin-bottom: 12px; opacity: 0.5; }
.empty-state p { font-size: 0.9rem; }

/* ─── Modal ────────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 20px; backdrop-filter: blur(4px);
  opacity: 0; pointer-events: none; transition: opacity var(--transition);
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; width: 100%; max-width: 480px;
  box-shadow: var(--shadow-lg); transform: translateY(20px);
  transition: transform var(--transition);
  max-height: 90vh; overflow-y: auto;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-header {
  padding: 20px 24px 16px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-header h3 { font-size: 1rem; }
.modal-close { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1.2rem; padding: 4px; border-radius: 4px; transition: color var(--transition); }
.modal-close:hover { color: var(--text); }
.modal-body { padding: 20px 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* ─── Copy Button ──────────────────────────────────────────────────────────── */
.copy-btn { cursor: pointer; background: none; border: none; color: var(--text-dim); padding: 2px 6px; border-radius: 4px; transition: color var(--transition); font-size: 0.85rem; }
.copy-btn:hover { color: var(--accent); }
.key-display { display: flex; align-items: center; gap: 6px; }

/* ─── Toast ────────────────────────────────────────────────────────────────── */
#toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--card2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 12px 18px;
  font-size: 0.875rem; box-shadow: var(--shadow);
  display: flex; align-items: center; gap: 8px;
  animation: slideIn 0.3s ease; min-width: 240px; max-width: 360px;
}
.toast.success { border-color: var(--success); color: var(--success); }
.toast.error { border-color: var(--danger); color: var(--danger); }
.toast.info { border-color: var(--info); color: var(--info); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeOut { to { opacity: 0; transform: translateX(100%); } }

/* ─── Loading ──────────────────────────────────────────────────────────────── */
.spinner { width: 18px; height: 18px; border: 2px solid rgba(255,255,255,0.2); border-top-color: #fff; border-radius: 50%; animation: spin 0.7s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading-row td { text-align: center; padding: 32px; color: var(--text-muted); }

/* ─── Toggle Switch ────────────────────────────────────────────────────────── */
.toggle-row {
  display: flex; align-items: flex-start; justify-content: space-between;
  padding: 18px 0; border-bottom: 1px solid var(--border); gap: 20px;
}
.toggle-row:last-child { border-bottom: none; }
.toggle-info { flex: 1; }
.toggle-info strong { display: block; font-size: .95rem; margin-bottom: 4px; }
.toggle-info p { font-size: .82rem; color: var(--text-muted); line-height: 1.5; margin: 0; }
.toggle-switch { position: relative; width: 48px; height: 26px; flex-shrink: 0; margin-top: 2px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0; background: var(--border);
  border-radius: 26px; cursor: pointer; transition: .3s;
}
.toggle-slider:before {
  content: ''; position: absolute;
  width: 20px; height: 20px; left: 3px; bottom: 3px;
  background: #fff; border-radius: 50%; transition: .3s;
}
.toggle-switch input:checked + .toggle-slider { background: var(--primary); }
.toggle-switch input:checked + .toggle-slider:before { transform: translateX(22px); }
.settings-section { margin-bottom: 24px; }
.settings-section-title {
  font-size: .75rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1px; color: var(--text-dim); margin-bottom: 4px;
}
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}