/* ═══════════════════════════════════════
   CSS VARIABLES — DESIGN TOKENS (Vercel/Base.vn Vibe)
═══════════════════════════════════════ */
:root {
  /* Modern Slate & Indigo Palette */
  --bg-app: #F1F5F9;
  --bg-card: #FFFFFF;
  --bg-sidebar: #FFFFFF;
  --bg-hover: #F8FAFC;
  --bg-input: #F1F5F9;
  
  --border: #E2E8F0;
  --border-light: #F1F5F9;
  --border-focus: #2563EB;
  
  --text-primary: #1E293B;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  
  /* Brand — Blue Tech */
  --accent: #2563EB;
  --accent-light: #EFF6FF;
  --accent-hover: #1D4ED8;
  --accent-alpha: rgba(37, 99, 235, 0.1);
  
  /* Color ramp tokens */
  --color-purple-500: #0EA5E9;
  --color-purple-600: #0284C7;

  /* Premium Gradients */
  --brand-gradient: linear-gradient(135deg, var(--accent) 0%, var(--color-purple-500) 100%);
  --brand-gradient-hover: linear-gradient(135deg, var(--accent-hover) 0%, var(--color-purple-600) 100%);
  --surface-gradient: linear-gradient(180deg, rgba(255,255,255,0.01) 0%, rgba(255,255,255,0.05) 100%);

  /* Status Tokens */
  --success: #10B981;
  --success-bg: #ECFDF5;
  --warning: #F59E0B;
  --warning-bg: #FFFBEB;
  --danger: #EF4444;
  --danger-bg: #FEF2F2;
  --info: #3B82F6;
  --info-bg: #EFF6FF;

  /* Dimensions */
  --sidebar-w: 260px;
  --header-h: 72px;

  /* Enhanced Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.04);
  --shadow-premium: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Radii */
  --radius-xs:   4px;
  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-full: 9999px;

  /* Transitions — tách riêng từng loại, không dùng `all` */
  --transition-colors:    color 150ms cubic-bezier(0.4,0,0.2,1),
                          background-color 150ms cubic-bezier(0.4,0,0.2,1),
                          border-color 150ms cubic-bezier(0.4,0,0.2,1);
  --transition-transform: transform 200ms cubic-bezier(0.4,0,0.2,1);
  --transition-shadow:    box-shadow 150ms cubic-bezier(0.4,0,0.2,1);
  --transition-opacity:   opacity 150ms cubic-bezier(0.4,0,0.2,1);

  /* Color white */
  --color-white: #FFFFFF;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

[data-theme="dark"] {
  --bg-app: #020617;
  --bg-card: #0F172A;
  --bg-sidebar: #020617;
  --bg-hover: #1E293B;
  --bg-input: #1E293B;
  
  --border: #1E293B;
  --border-light: #0F172A;
  --border-focus: #3B82F6;
  
  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-muted: #64748B;
  
  --accent-light: rgba(37, 99, 235, 0.15);
  --shadow-card: 0 10px 30px rgba(0,0,0,0.5);

  /* Dark mode semantic bg — badge hiển thị đúng */
  --success-bg: rgba(16, 185, 129, 0.15);
  --warning-bg: rgba(245, 158, 11, 0.15);
  --danger-bg:  rgba(239, 68, 68, 0.15);
  --info-bg:    rgba(59, 130, 246, 0.15);
}

/* ═══════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.5;
  overflow-x: hidden;
  transition: background 0.3s cubic-bezier(0.4,0,0.2,1), color 0.3s cubic-bezier(0.4,0,0.2,1);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: var(--font); }
input, select, textarea { font-family: var(--font); }
ul { list-style: none; }
img { max-width: 100%; border-radius: inherit; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-focus); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ═══════════════════════════════════════
   LAYOUT
═══════════════════════════════════════ */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ═══════════════════════════════════════
   SIDEBAR
═══════════════════════════════════════ */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  z-index: 200;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.sidebar-logo {
  padding: 0 24px;
  height: var(--header-h);
  border-bottom: 1px solid transparent; /* cleaner look */
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-mark {
  width: 32px; height: 32px;
  background: var(--text-primary);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; color: var(--bg-app); font-size: 14px;
}

.logo-text { font-size: 16px; font-weight: 700; letter-spacing: -0.03em; }

.sidebar-nav {
  flex: 1; overflow-y: auto;
  padding: 16px 12px;
}
.nav-section { margin-bottom: 16px; }
.nav-section-label {
  font-size: 11px; font-weight: 600; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.8px;
  padding: 0 12px 8px;
}

.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 12px;
  color: var(--text-secondary);
  font-size: 14px; font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-colors);
  margin-bottom: 2px;
  position: relative;
}
.nav-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 600;
}
.nav-item.active::before {
  content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  height: 20px; width: 4px; background: var(--brand-gradient); border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
}
.nav-icon { width: 18px; height: 18px; opacity: 0.8; }
.nav-badge {
  margin-left: auto;
  background: var(--danger); color: var(--color-white);
  font-size: 11px; font-weight: 700;
  padding: 0 6px; border-radius: var(--radius-full);
  min-width: 20px; text-align: center;
}

/* ═══════════════════════════════════════
   MAIN WORKSPACE
═══════════════════════════════════════ */
.main-wrapper {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left 0.3s cubic-bezier(0.4,0,0.2,1);
}

.header {
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  padding: 0 32px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 100;
  transition: var(--transition-colors), var(--transition-shadow);
}
[data-theme="dark"] .header { background: rgba(15, 23, 42, 0.75); border-bottom-color: var(--border-light); }

.header-left { display: flex; align-items: center; gap: 16px; }

.mobile-menu-btn {
  display: none; width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  align-items: center; justify-content: center;
  color: var(--text-secondary);
}

.search-bar { position: relative; width: 320px; }
.search-bar input {
  width: 100%; padding: 8px 12px 8px 36px;
  background: var(--bg-hover);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 13px; color: var(--text-primary);
  transition: var(--transition-colors), var(--transition-shadow);
}
.search-bar input:focus {
  background: var(--bg-card);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-sm);
  outline: none;
}
.search-icon {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); pointer-events: none;
}

.header-actions { display: flex; align-items: center; gap: 8px; }

.icon-btn {
  width: 36px; height: 36px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary); position: relative;
  transition: var(--transition-colors);
}
.icon-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.icon-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.notif-dot {
  position: absolute; top: 8px; right: 9px;
  width: 8px; height: 8px; background: var(--danger);
  border-radius: 50%; border: 2px solid var(--bg-card);
}

.avatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--brand-gradient);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-white); font-weight: 600; font-size: 13px; cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-transform), var(--transition-shadow);
}
.avatar:hover { transform: scale(1.05); box-shadow: var(--shadow-md); }

.content {
  flex: 1; padding: 32px;
  max-width: 1400px; margin: 0 auto; width: 100%;
}

/* Responsive Grid Utilities */
.grid-res-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.grid-res-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.grid-res-2-1 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
}

.grid-res-1-2 {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 24px;
}

.package-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}
.package-tabs::-webkit-scrollbar { display: none; }

/* ═══════════════════════════════════════
   PAGE NAVIGATION (SPA LIKE)
═══════════════════════════════════════ */
.page { display: none; animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards; opacity: 0; }
.page.active { display: block; }
@keyframes slideUp {
  0% { opacity: 0; transform: translateY(15px); }
  100% { opacity: 1; transform: translateY(0); }
}

.page-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 32px; gap: 16px;
}
.page-title { font-size: 24px; font-weight: 700; letter-spacing: -0.03em; color: var(--text-primary); }
.page-subtitle { font-size: 14px; color: var(--text-secondary); margin-top: 4px; }

/* ═══════════════════════════════════════
   COMPONENTS
═══════════════════════════════════════ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 24px;
  transition: var(--transition-shadow), var(--transition-colors);
}
.card:hover { border-color: var(--border-focus); }

.flex-res {
  display: flex;
  gap: 12px;
}
@media (max-width: 768px) {
  .flex-res { flex-direction: column; }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 8px 16px; border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 600; cursor: pointer;
  transition: var(--transition-colors), var(--transition-transform), var(--transition-shadow);
  border: 1px solid transparent;
}
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--accent); color: var(--color-white);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.4); }

.btn-accent {
  background: var(--brand-gradient); color: var(--color-white);
  border: none;
}
.btn-accent:hover {
  background: var(--brand-gradient-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -5px var(--accent-alpha);
}
.btn-accent:focus-visible {
  outline: 2px solid var(--color-purple-500);
  outline-offset: 2px;
}

.btn-outline { background: transparent; border-color: var(--border); color: var(--text-primary); }
.btn-outline:hover { background: var(--bg-hover); border-color: var(--text-muted); }

.btn-danger { background: var(--danger-bg); color: var(--danger); border-color: transparent; }
.btn-danger:hover { background: var(--danger); color: var(--color-white); }

/* Badges */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 2px 8px; border-radius: var(--radius-full); font-size: 12px; font-weight: 500;
}
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; }
.badge-active { background: var(--success-bg); color: var(--success); }
.badge-active::before { background: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-warning::before { background: var(--warning); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-danger::before { background: var(--danger); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-info::before { background: var(--info); }

/* Skeletons */
.skeleton-wrap { display: none; }
.skeleton-wrap.active { display: block; animation: fadeIn 0.3s; }
.skeleton {
  background: linear-gradient(90deg, var(--bg-hover) 25%, var(--border-light) 50%, var(--bg-hover) 75%);
  background-size: 400% 100%;
  animation: skel 1.5s infinite linear;
  border-radius: var(--radius-sm);
}
@keyframes skel { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Toast Notifications */
#toast-container {
  position: fixed; bottom: 24px; right: 24px; z-index: 9999;
  display: flex; flex-direction: column; gap: 12px;
}
.toast {
  background: var(--bg-card); border: 1px solid var(--border);
  box-shadow: var(--shadow-lg); padding: 12px 20px;
  border-radius: var(--radius-sm); display: flex; align-items: flex-start; gap: 12px;
  min-width: 300px; transform: translateX(120%); opacity: 0;
  transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55), opacity 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
.toast.show { transform: translateX(0); opacity: 1; }
.toast-icon { font-size: 18px; flex-shrink: 0; margin-top: 2px; }
.toast-title { font-weight: 600; font-size: 14px; color: var(--text-primary); margin-bottom: 2px; }
.toast-desc { font-size: 13px; color: var(--text-secondary); }
.toast-close { margin-left: auto; color: var(--text-muted); cursor: pointer; }
.toast-close:hover { color: var(--text-primary); }

/* ═══════════════════════════════════════
   SPECIFIC PAGE STYLES
═══════════════════════════════════════ */
/* Dashboard Grid */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 24px; }
.stat-box { display: flex; flex-direction: column; gap: 8px; }
.stat-box .title { font-size: 13px; color: var(--text-secondary); font-weight: 500; }
.stat-box .value { font-size: 32px; font-weight: 700; letter-spacing: -0.04em; }
.stat-box .trend { font-size: 12px; display: flex; align-items: center; gap: 4px; }
.trend.up { color: var(--success); }
.trend.down { color: var(--danger); }

/* OmniCare Widget — dark card, dùng token slate thay hardcode */
.crm-widget { background: linear-gradient(135deg, var(--bg-card), var(--bg-hover)); color: var(--text-primary); border: none; }
[data-theme="dark"] .crm-widget { background: linear-gradient(135deg, #0F172A, #1E293B); }
.crm-widget .page-title { color: var(--color-white); }
.crm-widget .page-subtitle { color: var(--text-muted); }
.stat-dark { background: rgba(255,255,255,0.05); padding: 16px; border-radius: var(--radius-sm); }
.stat-dark .title { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.stat-dark .value { font-size: 24px; font-weight: 700; }

/* Tables */
.table-responsive { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; text-align: left; }
.table th { padding: 12px 16px; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); font-weight: 600; border-bottom: 1px solid var(--border); }
.table td { padding: 16px; font-size: 14px; border-bottom: 1px solid var(--border-light); color: var(--text-primary); }
.table tr:hover td { background: var(--bg-hover); }

/* Forms & Progressive Disclosure */
.dns-panel {
  background: var(--bg-hover);
  border-top: 1px solid var(--border-light);
  padding: 16px; display: none;
}
.dns-panel.show { display: block; animation: slideDown 0.3s cubic-bezier(0.4,0,0.2,1); }
@keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }

.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--text-secondary); }
.form-control {
  width: 100%; padding: 10px 14px;
  background: var(--bg-app); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  transition: var(--transition-colors), var(--transition-shadow);
}
.form-control:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px var(--accent-alpha); }

/* File Upload (HĐĐT/Chữ ký số) */
.upload-box {
  border: 2px dashed var(--border); border-radius: var(--radius-md);
  padding: 40px 20px; text-align: center; color: var(--text-muted);
  transition: var(--transition-colors); cursor: pointer;
}
.upload-box:hover { border-color: var(--accent); background: var(--accent-alpha); color: var(--accent); }

/* Empty States */
.empty-state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 60px 20px; text-align: center;
}
.empty-state svg { width: 64px; height: 64px; color: var(--border-focus); margin-bottom: 16px; }
.empty-state h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.empty-state p { color: var(--text-secondary); margin-bottom: 24px; max-width: 400px; }

/* ═══════════════════════════════════════
   PRICING CARDS
═══════════════════════════════════════ */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 24px; }
@media (max-width: 1024px) {
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .pricing-grid { grid-template-columns: 1fr; }
}
.pricing-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-sm);
  position: relative; transition: var(--transition-shadow), var(--transition-transform);
}
.pricing-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.pricing-card.recommended { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent); }
.pricing-badge {
  position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: var(--color-white);
  font-size: 11px; font-weight: 700; padding: 3px 12px; border-radius: var(--radius-full);
  white-space: nowrap;
}
.pricing-name { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.pricing-target { font-size: 12px; color: var(--text-muted); margin-bottom: 16px; }
.pricing-price { margin-bottom: 20px; }
.pricing-price .amount { font-size: 32px; font-weight: 800; color: var(--text-primary); }
.pricing-price .period { font-size: 13px; color: var(--text-muted); }
.pricing-price .original { font-size: 12px; color: var(--text-muted); text-decoration: line-through; margin-top: 2px; }
.pricing-features { margin-bottom: 24px; font-size: 13px; color: var(--text-secondary); }
.pricing-features li { padding: 8px 0; border-bottom: 1px solid var(--border-light); display: flex; align-items: flex-start; gap: 8px; }
.pricing-features li::before { content: '✓'; color: var(--success); font-weight: 700; width: 14px; flex-shrink: 0; }
.pricing-features li.no { color: var(--text-muted); }
.pricing-features li.no::before { content: '✕'; color: var(--text-muted); }

/* ═══════════════════════════════════════
   STORE & CHECKOUT
═══════════════════════════════════════ */
.store-nav {
  display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 24px;
}
.store-tab {
  padding: 12px 20px; font-size: 14px; font-weight: 500; color: var(--text-secondary);
  border-bottom: 2px solid transparent; cursor: pointer; transition: var(--transition-colors);
}
.store-tab:hover { color: var(--text-primary); }
.store-tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

.store-content { display: none; }
.store-content.active { display: block; animation: fadeIn 0.3s cubic-bezier(0.4,0,0.2,1); }

.domain-search-wrapper {
  background: var(--bg-hover); padding: 32px; border-radius: var(--radius-lg); text-align: center; margin-bottom: 24px;
}
.domain-search-input {
  display: flex; max-width: 600px; margin: 0 auto;
}
.domain-search-input input {
  flex: 1; padding: 12px 20px; font-size: 16px; border: 1px solid var(--border);
  border-right: none; border-radius: var(--radius-md) 0 0 var(--radius-md); outline: none;
}
.domain-search-input button {
  padding: 12px 32px; font-size: 16px; font-weight: 600; background: var(--accent); color: var(--color-white);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.mini-cart {
  position: sticky; bottom: 24px; align-self: end; background: var(--bg-card);
  border: 1px solid var(--accent); box-shadow: var(--shadow-lg); border-radius: var(--radius-md);
  padding: 20px; width: 100%; margin-top: 24px;
}

.checkout-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; }
.payment-method {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px; border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 12px; cursor: pointer;
}
.payment-method.selected { border-color: var(--accent); background: var(--accent-alpha); }

/* ═══════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════ */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-res-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-res-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-res-1-2 { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }
  .sidebar { transform: translateX(-260px); width: 260px; box-shadow: var(--shadow-lg); }
  .sidebar.mobile-open { transform: translateX(0); }
  .mobile-menu-btn { display: flex; }
  .search-bar { display: none; }
  .main-wrapper { margin-left: 0; }
  .header { padding: 0 16px; }
  .content { padding: 20px 16px; }
  .grid-4 { grid-template-columns: 1fr !important; }
  .grid-res-3 { grid-template-columns: 1fr !important; }
  .grid-res-2 { grid-template-columns: 1fr !important; }
  .grid-res-2-1 { grid-template-columns: 1fr !important; }
  .grid-res-1-2 { grid-template-columns: 1fr !important; }
  
  .pricing-grid { grid-template-columns: 1fr !important; }

  .page-header { flex-direction: column; align-items: stretch; gap: 16px; }
  .page-header div:last-child { display: flex; gap: 8px; flex-wrap: wrap; }
  
  .page-title { font-size: 20px; }
  
  .banner-actions { flex-direction: column; width: 100%; }
  .banner-actions .btn { width: 100%; }

  .stat-box .value { font-size: 24px; }
}
/* Overlay */
.overlay {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 150;
  backdrop-filter: blur(2px);
}
.overlay.show { display: block; }

/* Toggle Switch Auto-Renew */
.toggle-switch {
  position: relative; display: inline-block; width: 36px; height: 20px; vertical-align: middle;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--border-focus); transition: background-color 300ms var(--transition-colors); border-radius: var(--radius-full);
}
.toggle-slider:before {
  position: absolute; content: ""; height: 16px; width: 16px; left: 2px; bottom: 2px;
  background-color: var(--color-white); transition: transform 300ms cubic-bezier(0.4,0,0.2,1); border-radius: 50%; box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}
.toggle-switch input:checked + .toggle-slider { background-color: var(--success); }
.toggle-switch input:checked + .toggle-slider:before { transform: translateX(16px); }
.toggle-label-text { font-size: 13px; font-weight: 600; margin-left: 8px; color: var(--text-secondary); vertical-align: middle; display: inline-block; min-width: 24px; }