/* ========================================
   MODERN WEBSITE STYLES - Tết 2026
   Ultra-modern, clean & elegant design
   ======================================== */

/* ==================== MODERN DESIGN TOKENS ==================== */
:root {
  /* Modern Color Palette */
  --color-primary: #E63946;
  --color-primary-dark: #D62828;
  --color-primary-light: #F77F8A;
  
  --color-accent: #FFB703;
  --color-accent-dark: #FB8500;
  --color-accent-light: #FFCE5C;
  
  --color-success: #06D6A0;
  --color-info: #118AB2;
  --color-warning: #FFB703;
  --color-danger: #EF476F;
  
  /* Neutrals - Modern Gray Scale */
  --color-bg: #F8F9FA;
  --color-surface: #FFFFFF;
  --color-text: #1A1A1A;
  --color-text-secondary: #4A5568;
  --color-text-muted: #718096;
  --color-border: #E2E8F0;
  --color-divider: #EDF2F7;
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
  
  /* Modern Spacing Scale */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.5rem;    /* 24px */
  --space-6: 2rem;      /* 32px */
  --space-8: 3rem;      /* 48px */
  --space-10: 4rem;     /* 64px */
  --space-12: 6rem;     /* 96px */
  
  /* Typography Scale */
  --text-xs: 0.75rem;    /* 12px */
  --text-sm: 0.875rem;   /* 14px */
  --text-base: 1rem;     /* 16px */
  --text-lg: 1.125rem;   /* 18px */
  --text-xl: 1.25rem;    /* 20px */
  --text-2xl: 1.5rem;    /* 24px */
  --text-3xl: 1.875rem;  /* 30px */
  --text-4xl: 2.25rem;   /* 36px */
  --text-5xl: 3rem;      /* 48px */
  --text-6xl: 3.75rem;   /* 60px */
  
  /* Modern Radius */
  --radius-sm: 0.375rem;  /* 6px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  --radius-2xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;
  
  /* Modern Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Neumorphism */
  --neu-shadow: 8px 8px 16px rgba(163, 177, 198, 0.6), -8px -8px 16px rgba(255, 255, 255, 0.5);
  --neu-inset: inset 2px 2px 5px rgba(163, 177, 198, 0.6), inset -2px -2px 5px rgba(255, 255, 255, 0.5);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Modern Gradients */
  --gradient-primary: linear-gradient(135deg, #E63946 0%, #D62828 100%);
  --gradient-accent: linear-gradient(135deg, #FFB703 0%, #FB8500 100%);
  --gradient-warm: linear-gradient(135deg, #FF6B6B 0%, #FFD93D 100%);
  --gradient-cool: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
  --gradient-sunset: linear-gradient(135deg, #FA8BFF 0%, #2BD2FF 52%, #2BFF88 90%);
  --gradient-mesh: radial-gradient(at 40% 20%, #E63946 0%, transparent 50%),
                   radial-gradient(at 80% 0%, #FFB703 0%, transparent 50%),
                   radial-gradient(at 0% 50%, #FF6B6B 0%, transparent 50%),
                   radial-gradient(at 80% 50%, #FFD93D 0%, transparent 50%);
}

/* ==================== RESET & BASE ==================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

a {
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-base);
}

button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ==================== CONTAINER ==================== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-4);
  }
}

/* ==================== MODERN HEADER ==================== */
.header {
  position: sticky;
  top: 0;
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  padding: var(--space-4) 0;
  transition: all var(--transition-base);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  transition: transform var(--transition-base);
}

.logo:hover {
  transform: scale(1.02);
}

.logo i {
  font-size: var(--text-3xl);
  background: var(--gradient-warm);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.main-nav a {
  position: relative;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.main-nav a::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base);
}

.main-nav a:hover {
  color: var(--color-primary);
  background: rgba(230, 57, 70, 0.05);
}

.main-nav a:hover::before {
  transform: translateX(-50%) scaleX(1);
}

.btn-admin {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  color: white;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.btn-admin:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-admin:active {
  transform: translateY(0);
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--color-text);
  font-size: var(--text-2xl);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.mobile-menu-btn:hover {
  background: var(--color-border);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 320px;
  height: 100vh;
  background: var(--color-surface);
  box-shadow: var(--shadow-2xl);
  transition: right var(--transition-slow);
  z-index: 9999;
  overflow-y: auto;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu-content {
  padding: var(--space-6);
}

.mobile-menu-close {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  color: var(--color-text);
  border-radius: var(--radius-lg);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-6);
  margin-left: auto;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-nav-link {
  padding: var(--space-4);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.mobile-nav-link:hover {
  background: var(--color-primary);
  color: white;
  transform: translateX(4px);
}

/* ==================== HERO SECTION ==================== */
.hero-countdown {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-12) 0;
  background: var(--color-surface);
  overflow: hidden;
}

.hero-countdown::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-mesh);
  opacity: 0.1;
  animation: meshMove 20s ease-in-out infinite;
}

@keyframes meshMove {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-5%, 5%) scale(1.1); }
}

.hero-decoration {
  position: relative;
  margin-bottom: var(--space-8);
}

.lantern {
  font-size: 3.5rem;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
  animation: swing 3s ease-in-out infinite;
}

.lantern-left {
  position: absolute;
  top: -40px;
  left: 10%;
}

.lantern-right {
  position: absolute;
  top: -40px;
  right: 10%;
  animation-delay: 1.5s;
}

@keyframes swing {
  0%, 100% { transform: rotate(-8deg) translateY(0); }
  50% { transform: rotate(8deg) translateY(-10px); }
}

.hero-title {
  font-size: clamp(var(--text-4xl), 6vw, var(--text-6xl));
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-6);
  position: relative;
  letter-spacing: -0.03em;
  animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tet-info {
  margin-bottom: var(--space-8);
  animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.tet-year {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.tet-year span {
  color: var(--color-accent-dark);
}

.tet-date {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* Modern Countdown */
.countdown-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-5);
  margin: var(--space-10) 0;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.countdown-box {
  position: relative;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-6) var(--space-8);
  min-width: 140px;
  box-shadow: var(--shadow-xl);
  transition: all var(--transition-base);
}

.countdown-box::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-2xl);
  padding: 2px;
  background: var(--gradient-primary);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.countdown-box:hover {
  transform: translateY(-8px) scale(1.05);
  box-shadow: var(--shadow-2xl);
}

.countdown-box:hover::before {
  opacity: 1;
}

.countdown-number {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 900;
  line-height: 1;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-variant-numeric: tabular-nums;
}

.countdown-label {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  margin-top: var(--space-2);
}

.countdown-separator {
  font-size: var(--text-5xl);
  font-weight: 700;
  color: var(--color-accent-dark);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.95); }
}

/* Countdown Controls */
.countdown-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin: var(--space-6) 0;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

.btn-toggle-timezone {
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.btn-toggle-timezone:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.btn-toggle-timezone.active {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
}

.timezone-info {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
}

/* Hero Actions */
.hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-8);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.8s backwards;
}

.btn-share,
.btn-calendar {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.btn-share {
  background: var(--gradient-primary);
  color: white;
}

.btn-calendar {
  background: white;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-share:hover,
.btn-calendar:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* ==================== SECTIONS ==================== */
section {
  padding: var(--space-12) 0;
  position: relative;
}

.section-calendar {
  background: var(--color-bg);
}

.section-youtube,
.section-products,
.section-tours {
  background: var(--color-surface);
}

.section-title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--space-10);
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.section-title i {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-right: var(--space-3);
}

/* ==================== MODERN CARDS ==================== */
.products-grid,
.tours-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.product-card,
.tour-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-slow);
  position: relative;
}

.product-card::before,
.tour-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.product-card:hover,
.tour-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
  border-color: transparent;
}

.product-card:hover::before,
.tour-card:hover::before {
  opacity: 0.05;
}

.product-image,
.tour-image {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-bg);
}

.product-image img,
.tour-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-image img,
.tour-card:hover .tour-image img {
  transform: scale(1.1);
}

.product-badge,
.tour-badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
}

.product-content,
.tour-content {
  padding: var(--space-6);
}

.product-title,
.tour-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.product-description,
.tour-description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-4);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-price,
.tour-price {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.product-actions,
.tour-actions {
  display: flex;
  gap: var(--space-3);
}

.btn-buy,
.btn-book,
.btn-details {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.btn-buy,
.btn-book {
  background: var(--gradient-primary);
  color: white;
}

.btn-details {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-buy:hover,
.btn-book:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-details:hover {
  background: var(--color-primary);
  color: white;
}

/* ==================== FOOTER ==================== */
.footer {
  background: linear-gradient(180deg, var(--color-text) 0%, #000 100%);
  color: white;
  padding: var(--space-12) 0 var(--space-6);
  margin-top: var(--space-12);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-section h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-section p {
  font-size: var(--text-sm);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--space-2);
}

.footer-section ul li a {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.8);
  transition: all var(--transition-base);
}

.footer-section ul li a:hover {
  color: white;
  padding-left: var(--space-2);
}

.social-links {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.social-link {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  font-size: var(--text-xl);
  color: white;
  transition: all var(--transition-base);
}

.social-link:hover {
  background: var(--gradient-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
}

.footer-bottom i {
  color: var(--color-accent);
  animation: heartbeat 1.5s ease infinite;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  25%, 75% { transform: scale(1.1); }
  50% { transform: scale(1.2); }
}

/* ==================== LOADING & EMPTY STATES ==================== */
.loading,
.empty-message {
  text-align: center;
  padding: var(--space-12) var(--space-6);
}

.loading i {
  font-size: var(--text-5xl);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.empty-message i {
  font-size: var(--text-6xl);
  color: var(--color-border);
  margin-bottom: var(--space-4);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
  .products-grid,
  .tours-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  .main-nav,
  .btn-admin {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .hero-countdown {
    min-height: 80vh;
    padding: var(--space-10) 0;
  }
  
  .countdown-box {
    min-width: 100px;
    padding: var(--space-4) var(--space-5);
  }
  
  .countdown-number {
    font-size: clamp(2rem, 10vw, 3rem);
  }
  
  .products-grid,
  .tours-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .countdown-container {
    gap: var(--space-3);
  }
  
  .countdown-box {
    min-width: 80px;
    padding: var(--space-3) var(--space-4);
  }
  
  .countdown-separator {
    font-size: var(--text-3xl);
  }
}

/* ==================== UTILITIES ==================== */
.text-gradient-primary {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-accent {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Smooth Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform-origin: left;
  z-index: 9999;
  transition: transform 0.1s ease-out;
}