/* ============================================
   VietCorel — Design System & Global Styles
   Light Theme — Purple-Orange Gradient, Premium
   ============================================ */

/* === Google Fonts === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* === CSS Custom Properties === */
:root {
  /* Colors — Purple-Orange Gradient Theme */
  --primary: #7C3AED;
  --primary-light: #8B5CF6;
  --primary-dark: #4C1D95;
  --secondary: #F59E0B;
  --secondary-light: #FBBF24;
  --accent: #F59E0B;
  --accent-hover: #D97706;
  --success: #10B981;
  --danger: #EF4444;
  --text-dark: #1E293B;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --bg-body: #F8FAFC;
  --bg-white: #FFFFFF;
  --bg-light: #F1F5F9;
  --bg-card: #FFFFFF;
  --border-color: #E2E8F0;
  --border-light: #F1F5F9;
  
  --color-white: #FFFFFF;
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #FAF5FF;
  --color-bg-hero: linear-gradient(135deg, #4C1D95 0%, #7C3AED 50%, #F59E0B 100%);
  
  --color-primary: #7C3AED;
  --color-primary-hover: #6D28D9;
  --color-primary-light: #EDE9FE;
  --color-secondary: #10B981;
  --color-secondary-light: #D1FAE5;
  --color-accent-warm: #F59E0B;
  --color-accent-warm-light: #FEF3C7;
  --color-accent-red: #EF4444;
  
  --color-gradient: linear-gradient(135deg, #7C3AED, #F59E0B);
  --color-gradient-hover: linear-gradient(135deg, #6D28D9, #D97706);
  
  --color-text-primary: #1E293B;
  --color-text-secondary: #64748B;
  --color-text-muted: #94A3B8;
  --color-text-inverse: #FFFFFF;
  
  --color-border: #E2E8F0;
  --color-border-light: #F5F0FF;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.1);
  --shadow-card-hover: 0 12px 32px rgba(124, 58, 237, 0.15);
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --fs-xs: 0.75rem;    /* 12px */
  --fs-sm: 0.8125rem;  /* 13px */
  --fs-base: 0.875rem; /* 14px */
  --fs-md: 1rem;       /* 16px */
  --fs-lg: 1.125rem;   /* 18px */
  --fs-xl: 1.25rem;    /* 20px */
  --fs-2xl: 1.5rem;    /* 24px */
  --fs-3xl: 1.875rem;  /* 30px */
  --fs-4xl: 2.25rem;   /* 36px */
  --fs-5xl: 3rem;      /* 48px */
  
  --fw-light: 300;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;
  
  --lh-tight: 1.2;
  --lh-normal: 1.5;
  --lh-relaxed: 1.7;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layout */
  --container-max: 1280px;
  --header-height: 64px;
}

/* === 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: var(--font-family);
  font-size: var(--fs-base);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  line-height: var(--lh-normal);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button {
  border: none;
  outline: none;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  background: transparent;
}

input, select {
  border: none;
  outline: none;
  font-family: inherit;
  font-size: inherit;
}

/* === Container === */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* === Section === */
.section {
  padding: var(--space-16) 0;
}

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

.section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
}

.section__title {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  color: var(--color-text-primary);
  position: relative;
  padding-left: var(--space-4);
}

.section__title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 60%;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.section__link {
  font-size: var(--fs-sm);
  color: var(--color-primary);
  font-weight: var(--fw-medium);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  transition: gap var(--transition-base);
}

.section__link:hover {
  gap: var(--space-2);
}

.section__link svg {
  width: 16px;
  height: 16px;
}

/* ============================================
   HEADER
   ============================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

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

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.header__logo-img,
.custom-logo,
.header__logo img {
  max-height: 44px;
  height: 44px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.header__logo-img:hover,
.custom-logo:hover,
.header__logo img:hover {
  transform: scale(1.02);
}

/* Nav */
.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.header__nav-link {
  padding: var(--space-2) var(--space-3);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.header__nav-link:hover,
.header__nav-link.is-active {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

/* Auth buttons */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn--ghost {
  color: var(--color-text-secondary);
}

.btn--ghost:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.35);
  transform: translateY(-1px);
}

/* Mobile menu toggle */
.header__menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
}

.header__menu-toggle:hover {
  background-color: var(--color-bg-secondary);
}

/* ============================================
   HERO — 2-Column Layout
   ============================================ */
.hero {
  background: linear-gradient(135deg, #FAF5FF 0%, #FFF7ED 50%, #FEFCE8 100%);
  padding: var(--space-16) 0 var(--space-12);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border-light);
}

/* Decorative dot grid */
.hero__dots {
  position: absolute;
  width: 200px;
  height: 200px;
  background-image: radial-gradient(circle, var(--color-border) 1px, transparent 1px);
  background-size: 20px 20px;
  opacity: 0.5;
  pointer-events: none;
}

.hero__dots--left {
  bottom: 20px;
  left: -40px;
}

.hero__dots--right {
  top: 40px;
  right: -20px;
}

/* Inner layout */
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Left: Text */
.hero__text {
  text-align: left;
}

/* Badge pill */
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px var(--space-4) 6px 10px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-secondary);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero__title {
  font-size: 3rem;
  font-weight: var(--fw-extrabold);
  color: var(--color-text-primary);
  line-height: 1.15;
  margin-bottom: var(--space-5);
  letter-spacing: -0.02em;
}

.hero__title em {
  font-style: normal;
  background: linear-gradient(135deg, #7C3AED, #F59E0B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: var(--fs-md);
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-8);
  max-width: 480px;
}

/* Search bar */
.search {
  max-width: 540px;
  display: flex;
  align-items: center;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--color-border);
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.search:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.15);
}

.search__category {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  border-right: 1px solid var(--color-border);
  cursor: pointer;
  white-space: nowrap;
  min-width: 120px;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
}

.search__input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-base);
  color: var(--color-text-primary);
  background: transparent;
}

.search__input::placeholder {
  color: var(--color-text-muted);
}

.search__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 4px;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-lg);
  flex-shrink: 0;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.search__btn:hover {
  background: var(--color-primary-hover);
  transform: scale(1.05);
}

.search__btn svg {
  width: 18px;
  height: 18px;
}

/* Popular tags */
.hero__tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  margin-bottom: var(--space-8);
}

.hero__tags-label {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  font-weight: var(--fw-medium);
}

.hero__tag {
  font-size: var(--fs-xs);
  color: var(--color-text-secondary);
  padding: 4px 12px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.hero__tag:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

/* Stats row */
.hero__stats {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.hero__stat {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.hero__stat-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hero__stat-value {
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  color: var(--color-text-primary);
  line-height: 1.2;
}

.hero__stat-label {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.hero__stat-divider {
  width: 1px;
  height: 32px;
  background: var(--color-border);
}

/* Right: Floating Preview Cards */
.hero__preview {
  position: relative;
  height: 420px;
}

.hero__card {
  position: absolute;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--color-white);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.4s ease;
  animation: float-card 6s ease-in-out infinite;
}

.hero__card:hover {
  transform: translateY(-8px) scale(1.03) !important;
  box-shadow: var(--shadow-xl);
  z-index: 10;
}

.hero__card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__card-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 6px 12px;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  color: white;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
}

/* Card positions & sizes */
.hero__card--1 {
  width: 220px;
  height: 200px;
  top: 10px;
  left: 30px;
  transform: rotate(-3deg);
  animation-delay: 0s;
  z-index: 4;
}

.hero__card--2 {
  width: 170px;
  height: 170px;
  top: 0;
  right: 10px;
  transform: rotate(4deg);
  animation-delay: 1.5s;
  z-index: 3;
}

.hero__card--3 {
  width: 190px;
  height: 180px;
  bottom: 20px;
  left: 60px;
  transform: rotate(2deg);
  animation-delay: 3s;
  z-index: 2;
}

.hero__card--4 {
  width: 180px;
  height: 140px;
  bottom: 40px;
  right: 40px;
  transform: rotate(-2deg);
  animation-delay: 4.5s;
  z-index: 1;
}

@keyframes float-card {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -10px; }
}

/* ============================================
   CATEGORIES ROW
   ============================================ */
.categories {
  padding: var(--space-10) 0;
}

.categories__grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: var(--space-4);
}

.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-3);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-primary);
}

.category-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  overflow: hidden;
}

.category-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.category-card__name {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text-primary);
  text-align: center;
}

.category-card__count {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

/* ============================================
   FEATURED RESOURCES GRID
   ============================================ */
.featured-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 220px 220px;
  gap: var(--space-4);
}

.featured-grid__main {
  grid-row: 1 / 3;
  grid-column: 1;
}

.featured-grid__main .resource-card {
  height: 100%;
}

.featured-grid__side {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.featured-grid__side .resource-card--small {
  height: 100%;
}

/* Resource Card */
.resource-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  background: var(--color-bg-secondary);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.resource-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.resource-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  transition: transform var(--transition-slow);
}

.resource-card:hover .resource-card__image {
  transform: scale(1.05);
}

.resource-card__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-4);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 100%);
  transition: opacity var(--transition-base);
}

.resource-card__badge {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  padding: var(--space-1) var(--space-3);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-sm);
  z-index: 2;
}

.resource-card__badge--free {
  background: var(--color-secondary);
  color: var(--color-text-inverse);
}

.resource-card__badge--premium {
  background: var(--color-accent-warm);
  color: var(--color-text-inverse);
}

.resource-card__badge--category {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.resource-card__title {
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--color-text-inverse);
  margin-bottom: var(--space-1);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.resource-card--large .resource-card__title {
  font-size: var(--fs-lg);
}

.resource-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.75);
}

.resource-card__meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.resource-card__meta-item svg {
  width: 14px;
  height: 14px;
}

/* ============================================
   PRODUCTS GRID (5 COLUMNS / 20 ITEMS)
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-4);
}

.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-primary);
}

.product-card__thumb {
  position: relative;
  width: 100%;
  padding-top: 75%;
  overflow: hidden;
  background: var(--color-bg-secondary);
}

.product-card__thumb img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-card__thumb img {
  transform: scale(1.06);
}

.product-card__badge {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 2px 7px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-sm);
  z-index: 2;
}

.product-card__badge--free {
  background: var(--color-secondary);
  color: var(--color-text-inverse);
}

.product-card__badge--premium {
  background: var(--color-accent-warm);
  color: var(--color-text-inverse);
}

.product-card__format {
  position: absolute;
  bottom: 8px;
  left: 8px;
  padding: 2px 6px;
  font-size: 10px;
  font-weight: 700;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  color: #ffffff;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.product-card__body {
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-card__category {
  font-size: var(--fs-xs);
  color: var(--color-primary);
  font-weight: var(--fw-semibold);
  margin-bottom: 3px;
}

.product-card__title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text-primary);
  line-height: 1.35;
  margin-bottom: var(--space-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 2.7em;
}

.product-card__footer {
  margin-top: auto;
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

/* ============================================
   COLLECTIONS / ALBUMS
   ============================================ */
.collections__wrapper {
  position: relative;
}

.collections__track {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: var(--space-2);
}

.collections__track::-webkit-scrollbar {
  display: none;
}

/* Navigation arrows */
.collections__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  z-index: 10;
  transition: all var(--transition-base);
  border: 1px solid var(--color-border);
}

.collections__nav:hover {
  box-shadow: var(--shadow-lg);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.collections__nav--prev {
  left: -22px;
}

.collections__nav--next {
  right: -22px;
}

.collections__nav svg {
  width: 20px;
  height: 20px;
}

.collections__nav:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Collection Card */
.collection-card {
  flex: 0 0 220px;
  scroll-snap-align: start;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  cursor: pointer;
}

.collection-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-primary);
}

.collection-card__image {
  width: 100%;
  height: 150px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.collection-card:hover .collection-card__image {
  transform: scale(1.05);
}

.collection-card__body {
  padding: var(--space-3) var(--space-4);
}

.collection-card__badges {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.collection-card__badge {
  padding: 2px var(--space-2);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  border-radius: 4px;
}

.collection-card__badge--album {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.collection-card__badge--category {
  background: var(--color-accent-warm-light);
  color: var(--color-accent-warm);
}

.collection-card__title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.collection-card__count {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-text-primary);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-16) 0 var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer__logo {
  display: inline-block;
  margin-bottom: var(--space-4);
}

.footer__logo-img {
  height: 38px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
  opacity: 0.95;
  transition: opacity var(--transition-fast);
}

.footer__logo:hover .footer__logo-img {
  opacity: 1;
}

.footer__brand-desc {
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-5);
}

.footer__socials {
  display: flex;
  gap: var(--space-3);
}

.footer__social-link {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.6);
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.footer__social-link svg {
  width: 18px;
  height: 18px;
}

.footer__column-title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-white);
  margin-bottom: var(--space-5);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.65);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: all var(--transition-fast);
}

.footer__link::before {
  content: '';
  width: 5px;
  height: 5px;
  border-top: 2px solid var(--color-primary-light);
  border-right: 2px solid var(--color-primary-light);
  transform: rotate(45deg);
  display: inline-block;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-white);
  transform: translateX(4px);
}

.footer__link:hover::before {
  border-color: var(--color-accent-warm);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--fs-xs);
}

.footer__bottom-links {
  display: flex;
  gap: var(--space-5);
}

.footer__bottom-link {
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition-fast);
}

.footer__bottom-link:hover {
  color: var(--color-white);
}

/* ============================================
   POPUP / MODAL (thay thế alert)
   ============================================ */
.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.popup-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

.popup {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-xl);
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-base);
}

.popup-overlay.is-active .popup {
  transform: scale(1) translateY(0);
}

.popup__icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
  font-size: 24px;
}

.popup__icon--success {
  background: var(--color-secondary-light);
  color: var(--color-secondary);
}

.popup__icon--error {
  background: #FEE2E2;
  color: var(--color-accent-red);
}

.popup__icon--info {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.popup__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-2);
}

.popup__message {
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  line-height: var(--lh-relaxed);
}

.popup__btn {
  padding: var(--space-3) var(--space-8);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  font-weight: var(--fw-semibold);
  transition: background-color var(--transition-fast);
}

.popup__btn:hover {
  background: var(--color-primary-hover);
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */

/* Tablet: 768px */
@media (max-width: 1024px) {
  .header__nav {
    display: none;
  }

  .header__menu-toggle {
    display: flex;
  }

  .categories__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .featured-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .featured-grid__main {
    grid-row: auto;
    grid-column: auto;
  }

  .featured-grid__main .resource-card {
    height: 280px;
  }

  .featured-grid__side .resource-card--small {
    height: 180px;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .hero__preview {
    display: none;
  }

  .hero__text {
    text-align: center;
  }

  .hero__subtitle {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }

  .search {
    max-width: 100%;
  }

  .hero__tags {
    justify-content: center;
  }

  .hero__stats {
    justify-content: center;
  }

  .hero__title {
    font-size: var(--fs-3xl);
  }
}

/* Mobile: 480px */
@media (max-width: 576px) {
  :root {
    --header-height: 56px;
  }

  .container {
    padding: 0 var(--space-4);
  }

  .hero {
    padding: var(--space-10) 0 var(--space-8);
  }

  .hero__title {
    font-size: var(--fs-2xl);
  }

  .hero__subtitle {
    font-size: var(--fs-sm);
  }

  .search {
    flex-direction: column;
    border-radius: var(--radius-lg);
  }

  .search__category {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    justify-content: space-between;
  }

  .search__btn {
    width: calc(100% - 8px);
    height: 44px;
  }

  .categories__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-3);
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }

  .category-card {
    padding: var(--space-3) var(--space-2);
  }

  .category-card__icon {
    width: 44px;
    height: 44px;
    font-size: 22px;
  }

  .category-card__name {
    font-size: var(--fs-xs);
  }

  .featured-grid__side {
    grid-template-columns: 1fr;
  }

  .featured-grid__side .resource-card--small {
    height: 160px;
  }

  .section {
    padding: var(--space-10) 0;
  }

  .section__title {
    font-size: var(--fs-lg);
  }

  .footer__grid {
    grid-template-columns: 1fr;
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }

  .hero__stats {
    flex-wrap: wrap;
    gap: var(--space-4);
  }

  .hero__stat-icon {
    display: none;
  }

  .hero__stat-divider {
    display: none;
  }

  .hero__stat-value {
    font-size: var(--fs-sm);
  }

  .collection-card {
    flex: 0 0 180px;
  }
}

/* Mobile nav overlay */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.mobile-nav.is-active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  height: 100%;
  background: var(--color-white);
  box-shadow: var(--shadow-xl);
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}

.mobile-nav.is-active .mobile-nav__panel {
  transform: translateX(0);
}

.mobile-nav__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  margin-left: auto;
  margin-bottom: var(--space-6);
  color: var(--color-text-secondary);
}

.mobile-nav__close:hover {
  background: var(--color-bg-secondary);
}

.mobile-nav__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mobile-nav__link {
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.mobile-nav__link:hover,
.mobile-nav__link.is-active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.mobile-nav__actions {
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.mobile-nav__actions .btn {
  width: 100%;
  padding: var(--space-3);
}


/* === SUBPAGES STYLES (Giới thiệu, Liên hệ, Hỏi đáp, Page Hero) === */
/* ── Page Hero ── */
.page-hero {
    background: linear-gradient(135deg, var(--primary) 0%, #0f4f8a 60%, var(--secondary) 100%);
    padding: 56px 0 64px;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 80% 50%, rgba(14, 165, 233, 0.15) 0%, transparent 60%);
}

.page-hero-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.18);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}

.page-hero h1 {
    font-size: 36px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 12px;
}

.page-hero p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    line-height: 1.7;
}

.page-hero-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
}

.page-hero-breadcrumb a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
}

.page-hero-breadcrumb a:hover {
    color: #fff;
}

.page-hero-breadcrumb .sep {
    font-size: 10px;
}

/* ── About content ── */
.about-section {
    padding: 64px 0 80px;
}

.about-intro-card {
    background: linear-gradient(135deg, var(--primary) 0%, #0f4f8a 100%);
    border-radius: var(--radius-lg);
    padding: 40px;
    color: #fff;
    margin-bottom: 48px;
    position: relative;
    overflow: hidden;
}

.about-intro-card::after {
    content: '';
    position: absolute;
    right: -60px;
    top: -60px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
}

.about-intro-card h2 {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 12px;
}

.about-intro-card p {
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.75;
    margin: 0;
}

.about-stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 56px;
}

.about-stat-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}

.about-stat-card:hover {
    border-color: var(--secondary);
    box-shadow: 0 8px 24px rgba(14, 165, 233, 0.12);
    transform: translateY(-3px);
}

.about-stat-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin: 0 auto 14px;
}

.about-stat-num {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    display: block;
    line-height: 1;
    margin-bottom: 4px;
}

.about-stat-label {
    font-size: 13px;
    color: var(--text-muted);
}

.about-mission {
    margin-bottom: 48px;
}

.about-mission h2,
.about-values h2,
.about-team h2 {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-light);
    position: relative;
}

.about-mission h2::after,
.about-values h2::after,
.about-team h2::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--secondary);
}

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

.mission-card {
    background: var(--bg-light);
    border-left: 3px solid var(--secondary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: 20px 24px;
}

.mission-card h5 {
    font-size: 15px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.mission-card h5 i {
    color: var(--secondary);
    font-size: 14px;
}

.mission-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.65;
    margin: 0;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}

.value-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}

.value-card:hover {
    border-color: var(--secondary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.value-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin: 0 auto 14px;
}

.value-card h5 {
    font-size: 15px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.value-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.team-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 24px 20px;
    text-align: center;
    transition: var(--transition);
}

.team-card:hover {
    border-color: var(--secondary);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.team-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin: 0 auto 14px;
    font-weight: 800;
    color: #fff;
}

.team-card h5 {
    font-size: 15px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.team-card .role {
    font-size: 12px;
    color: var(--secondary);
    font-weight: 600;
    margin-bottom: 8px;
}

.team-card p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.5;
}

.about-cta {
    background: linear-gradient(135deg, #0f2340 0%, var(--secondary) 100%);
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
    color: #fff;
    margin-top: 56px;
}

.about-cta h3 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 12px;
}

.about-cta p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 24px;
}

.about-cta .btn-cta-w {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: var(--primary);
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.about-cta .btn-cta-w:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

/* ── Responsive ── */
@media (max-width: 991.98px) {
    .about-stats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 575.98px) {
    .mission-grid {
        grid-template-columns: 1fr;
    }

    .about-stats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .page-hero h1 {
        font-size: 26px;
    }
}

/* ================================================================
   TRANG LIÊN HỆ – lien-he.css
   ================================================================ */

/* ── Page Hero (shared) ── */
.page-hero {
    background: linear-gradient(135deg, var(--primary) 0%, #0f4f8a 55%, var(--secondary) 100%);
    padding: 56px 0 64px;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 80% 50%, rgba(14, 165, 233, 0.15) 0%, transparent 60%);
}

.page-hero-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.18);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}

.page-hero h1 {
    font-size: 36px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 12px;
}

.page-hero p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    max-width: 560px;
    line-height: 1.7;
}

.page-hero-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
}

.page-hero-breadcrumb a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
}

.page-hero-breadcrumb a:hover {
    color: #fff;
}

/* ── Contact layout ── */
.contact-section {
    padding: 64px 0 80px;
}

/* Info cards */
.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}

.contact-info-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    text-align: center;
    transition: var(--transition);
}

.contact-info-card:hover {
    border-color: var(--secondary);
    box-shadow: 0 8px 24px rgba(14, 165, 233, 0.12);
    transform: translateY(-3px);
}

.contact-info-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 16px;
}

.contact-info-card h5 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 6px;
}

.contact-info-card p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0 0 10px;
}

.contact-info-card a {
    font-size: 15px;
    font-weight: 600;
    color: var(--secondary);
    text-decoration: none;
    display: block;
}

.contact-info-card a:hover {
    color: var(--primary);
}

/* Form + FAQ wrapper */
.contact-main {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 32px;
}

/* Contact form */
.contact-form-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 36px;
}

.contact-form-card h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 6px;
}

.contact-form-card>p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 28px;
}

.cf-field {
    margin-bottom: 20px;
}

.cf-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.cf-field label span {
    color: #ef4444;
}

.cf-input,
.cf-select,
.cf-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-base);
    font-size: 14px;
    color: var(--text-dark);
    background: var(--bg-light);
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
    outline: none;
}

.cf-input:focus,
.cf-select:focus,
.cf-textarea:focus {
    border-color: var(--secondary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.cf-input::placeholder,
.cf-textarea::placeholder {
    color: #c5cdd8;
}

.cf-textarea {
    height: 130px;
    resize: vertical;
}

.cf-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.cf-topic-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 4px;
}

.cf-topic {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-light);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 8px 12px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 13px;
    color: var(--text-dark);
}

.cf-topic:hover {
    border-color: var(--secondary);
    background: rgba(14, 165, 233, 0.04);
}

.cf-topic input {
    accent-color: var(--secondary);
}

.btn-cf-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-base);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(15, 36, 64, 0.2);
}

.btn-cf-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(15, 36, 64, 0.28);
}

.btn-cf-submit i {
    transition: transform 0.25s ease;
}

.btn-cf-submit:hover i {
    transform: translateX(4px);
}

/* FAQ side */
.contact-faq {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-faq-title {
    font-size: 20px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-light);
    position: relative;
}

.contact-faq-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--secondary);
}

.faq-item {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--border-color);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 18px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    gap: 12px;
    user-select: none;
}

.faq-question .faq-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: var(--transition);
}

.faq-item.open .faq-icon {
    background: var(--secondary);
    color: #fff;
    transform: rotate(45deg);
}

.faq-answer {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.65;
    max-height: 0;
    overflow: hidden;
    padding: 0 18px;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
    max-height: 200px;
    padding: 0 18px 16px;
}

/* Map embed */
.contact-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-top: 48px;
    border: 1px solid var(--border-light);
}

.contact-map iframe {
    display: block;
    width: 100%;
    height: 320px;
    border: none;
}

/* Social strip */
.contact-social-strip {
    display: flex;
    gap: 12px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.contact-social-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.contact-social-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contact-social-btn.fb {
    background: #1877f2;
    color: #fff;
}

.contact-social-btn.yt {
    background: #ff0000;
    color: #fff;
}

.contact-social-btn.zl {
    background: #0068ff;
    color: #fff;
}

/* ── Responsive ── */
@media (max-width: 991.98px) {
    .contact-info-grid {
        grid-template-columns: 1fr;
    }

    .contact-main {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 575.98px) {
    .cf-row {
        grid-template-columns: 1fr;
    }

    .cf-topic-grid {
        grid-template-columns: 1fr;
    }

    .page-hero h1 {
        font-size: 26px;
    }
}

/* ================================================================
   TRANG BLOG LISTING – blog.css
   ================================================================ */

/* ── Page Hero (shared) ── */
.page-hero {
    background: linear-gradient(135deg, var(--primary) 0%, #0f4f8a 55%, var(--secondary) 100%);
    padding: 56px 0 64px;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 80% 50%, rgba(14, 165, 233, 0.15) 0%, transparent 60%);
}

.page-hero-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.18);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}

.page-hero h1 {
    font-size: 36px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 12px;
}

.page-hero p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    max-width: 560px;
    line-height: 1.7;
}

.page-hero-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* === PRICING STYLES (Gói VIP / Gói Hội Viên) === */

.member-cta p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.member-cta .btn-cta {
    background: var(--accent);
    border: none;
    color: #fff;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    position: relative;
    z-index: 1;
    font-family: var(--font-family);
}

.member-cta .btn-cta:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(245, 158, 11, 0.35);
    color: #fff;
}

/* ============================================
   PRICING SECTION
   ============================================ */
.pricing-section {
    padding: 60px 0;
    background: var(--bg-light);
}

.pricing-card {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    text-align: center;
    transition: var(--transition);
    height: 100%;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border-color: var(--secondary);
    box-shadow: 0 0 0 1px var(--secondary), var(--shadow-lg);
}

/* Custom Added Pricing Badges & Gold Styles */
.pricing-card .disabled {
    color: #adb5bd;
}

.pricing-card .disabled i {
    color: #ef4444;
}

.pricing-card.pricing-vip {
    border: 2px solid #f59e0b;
    box-shadow: 0 0 0 1px #f59e0b, var(--shadow-lg);
}

.vip-badge {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: #fff;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
    vertical-align: middle;
    margin-left: 4px;
    font-weight: 700;
}

.pricing-badge-top {
    background: var(--primary);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 20px;
    text-align: center;
    margin-bottom: 16px;
    display: inline-block;
}

.pricing-badge-gold {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
}

.btn-pricing-gold {
    display: block;
    width: 100%;
    padding: 13px;
    border-radius: 10px;
    text-align: center;
    font-weight: 700;
    font-size: 15px;
    text-decoration: none;
    margin-top: 20px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: #fff;
    transition: all .2s;
    box-shadow: 0 4px 15px rgba(245, 158, 11, .3);
}

.btn-pricing-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, .4);
    color: #fff;
}

.pricing-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin: 0 auto 16px;
}

.pricing-card h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.pricing-card .price {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.pricing-card .price small {
    font-size: 15px;
    font-weight: 400;
    color: var(--text-muted);
}

.pricing-card .price-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
    text-align: left;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-dark);
    border-bottom: 1px solid var(--border-light);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li i {
    color: var(--success);
    font-size: 13px;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

.pricing-features li i.fa-xmark {
    color: var(--text-light);
}

.btn-pricing {
    display: block;
    width: 100%;
    padding: 12px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    font-family: var(--font-family);
    text-decoration: none;
}

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

.btn-pricing-outline:hover {
    background: var(--primary);
    color: #fff;
}

.btn-pricing-filled {
    border: none;
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.25);
}

.btn-pricing-filled:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(14, 165, 233, 0.35);
    color: #fff;
}

/* ============================================
   BLOG SECTION
   ============================================ */

/* ============================================
   EXPLICIT SUBPAGE & PRICING FIXES
   ============================================ */

/* 1. Page Hero & Pricing Hero */
.page-hero,
.pricing-hero {
    background: linear-gradient(135deg, #1e1b4b 0%, #4c1d95 50%, #7c3aed 100%) !important;
    padding: 60px 0 70px !important;
    position: relative !important;
    overflow: hidden !important;
    color: #ffffff !important;
    margin-bottom: 40px !important;
}

.page-hero::before,
.pricing-hero::before {
    content: "" !important;
    position: absolute !important;
    inset: 0 !important;
    background: radial-gradient(ellipse at 80% 50%, rgba(245, 158, 11, 0.2) 0%, transparent 60%) !important;
}

.page-hero h1,
.pricing-hero h1,
.pricing-hero-content h1 {
    font-size: 36px !important;
    font-weight: 800 !important;
    color: #ffffff !important;
    margin-bottom: 12px !important;
}

.page-hero p,
.pricing-hero p,
.pricing-hero-content p {
    font-size: 16px !important;
    color: rgba(255, 255, 255, 0.88) !important;
    max-width: 650px !important;
    line-height: 1.6 !important;
}

.pricing-hero-badge,
.page-hero-label {
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
    background: rgba(255, 255, 255, 0.15) !important;
    color: #ffffff !important;
    border: 1px solid rgba(255, 255, 255, 0.25) !important;
    padding: 6px 16px !important;
    border-radius: 20px !important;
    font-size: 13px !important;
    font-weight: 600 !important;
    margin-bottom: 16px !important;
}

.pricing-trust-row {
    display: flex !important;
    gap: 20px !important;
    flex-wrap: wrap !important;
    margin-top: 28px !important;
}

.trust-badge {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    font-size: 13px !important;
    font-weight: 600 !important;
    color: rgba(255, 255, 255, 0.9) !important;
    background: rgba(255, 255, 255, 0.1) !important;
    padding: 8px 16px !important;
    border-radius: 30px !important;
    border: 1px solid rgba(255, 255, 255, 0.15) !important;
}

.cat-breadcrumb,
.page-hero-breadcrumb {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    font-size: 13px !important;
    color: rgba(255, 255, 255, 0.7) !important;
    margin-bottom: 16px !important;
}

.cat-breadcrumb a,
.page-hero-breadcrumb a {
    color: #ffffff !important;
    text-decoration: none !important;
}

/* 2. Pricing Section & Cards */
.pricing-section {
    padding: 40px 0 80px !important;
    background: #f8fafc !important;
}

.pricing-card {
    background: #ffffff !important;
    border: 2px solid #e2e8f0 !important;
    border-radius: 20px !important;
    padding: 36px 28px !important;
    text-align: center !important;
    transition: all 0.3s ease !important;
    height: 100% !important;
    position: relative !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06) !important;
    color: #1e293b !important;
}

.pricing-card:hover {
    transform: translateY(-6px) !important;
    box-shadow: 0 20px 40px rgba(124, 58, 237, 0.15) !important;
}

.pricing-card.pricing-vip {
    border: 2px solid #f59e0b !important;
    box-shadow: 0 15px 35px rgba(245, 158, 11, 0.2) !important;
}

.pricing-badge-top {
    background: linear-gradient(135deg, #7c3aed, #f59e0b) !important;
    color: #ffffff !important;
    font-size: 12px !important;
    font-weight: 700 !important;
    padding: 6px 16px !important;
    border-radius: 20px !important;
    display: inline-block !important;
    margin-bottom: 20px !important;
}

.pricing-icon {
    width: 64px !important;
    height: 64px !important;
    border-radius: 50% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 26px !important;
    margin: 0 auto 20px !important;
}

.pricing-icon.cat-green {
    background: #ecfdf5 !important;
    color: #10b981 !important;
}

.pricing-icon.cat-orange {
    background: #fff7ed !important;
    color: #f59e0b !important;
}

.pricing-icon.cat-blue {
    background: #eff6ff !important;
    color: #3b82f6 !important;
}

.pricing-card h4 {
    font-size: 22px !important;
    font-weight: 800 !important;
    color: #0f172a !important;
    margin-bottom: 10px !important;
}

.pricing-card .price {
    font-size: 36px !important;
    font-weight: 800 !important;
    color: #7c3aed !important;
    margin-bottom: 6px !important;
}

.pricing-card .price-desc {
    font-size: 14px !important;
    color: #64748b !important;
    margin-bottom: 24px !important;
}

.pricing-features {
    list-style: none !important;
    padding: 0 !important;
    margin: 0 0 28px !important;
    text-align: left !important;
}

.pricing-features li {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
    padding: 10px 0 !important;
    font-size: 14px !important;
    color: #334155 !important;
    border-bottom: 1px solid #f1f5f9 !important;
}

.pricing-features li i.fa-check {
    color: #10b981 !important;
    font-size: 14px !important;
    font-weight: 900 !important;
}

.pricing-features li.disabled {
    color: #94a3b8 !important;
    opacity: 0.6 !important;
}

.pricing-features li.disabled i {
    color: #ef4444 !important;
}

.btn-pricing {
    display: block !important;
    width: 100% !important;
    padding: 14px !important;
    border-radius: 12px !important;
    font-size: 15px !important;
    font-weight: 700 !important;
    text-align: center !important;
    text-decoration: none !important;
    transition: all 0.25s ease !important;
}

.btn-pricing-outline {
    border: 2px solid #7c3aed !important;
    background: transparent !important;
    color: #7c3aed !important;
}

.btn-pricing-outline:hover {
    background: #7c3aed !important;
    color: #ffffff !important;
}

.btn-pricing-gold {
    background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%) !important;
    color: #ffffff !important;
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35) !important;
}

.btn-pricing-gold:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 10px 25px rgba(245, 158, 11, 0.45) !important;
    color: #ffffff !important;
}

.btn-pricing-filled {
    background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%) !important;
    color: #ffffff !important;
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.3) !important;
}

.btn-pricing-filled:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 10px 25px rgba(124, 58, 237, 0.4) !important;
    color: #ffffff !important;
}

/* ============================================
   TOP BAR STYLES
   ============================================ */
.top-bar {
  background: #0f172a !important;
  color: #94a3b8 !important;
  font-size: 13px !important;
  padding: 8px 0 !important;
  border-bottom: 1px solid #1e293b !important;
}

.top-bar a {
  color: #cbd5e1 !important;
  text-decoration: none !important;
  transition: color 0.2s ease !important;
}

.top-bar a:hover {
  color: #38bdf8 !important;
}

.top-bar__inner {
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
}

.top-bar__contact {
  display: flex !important;
  gap: 16px !important;
  align-items: center !important;
}

.top-bar__links {
  display: flex !important;
  gap: 16px !important;
  align-items: center !important;
}

@media (max-width: 768px) {
  .top-bar__links {
    display: none !important;
  }
}

/* ============================================
   TOP BAR FIXES
   ============================================ */
.top-bar {
  background: #0f2440 !important;
  color: rgba(255, 255, 255, 0.85) !important;
  font-size: 13px !important;
  padding: 8px 0 !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
  width: 100% !important;
}

.top-bar a {
  color: rgba(255, 255, 255, 0.85) !important;
  text-decoration: none !important;
  font-size: 13px !important;
}

.top-bar a:hover {
  color: #ffffff !important;
}

.top-bar .top-links a {
  margin-left: 20px !important;
}

.top-bar-left {
  display: flex !important;
  align-items: center !important;
  gap: 20px !important;
}

/* ============================================
   ULTRA-PREMIUM HEADER & TOP BAR STYLES
   ============================================ */

/* Top Bar */
.top-bar {
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%) !important;
  color: #e2e8f0 !important;
  font-size: 13px !important;
  padding: 10px 0 !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
  width: 100% !important;
  position: relative !important;
  z-index: 1001 !important;
}

.top-bar a {
  color: #cbd5e1 !important;
  text-decoration: none !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  transition: all 0.2s ease !important;
}

.top-bar a:hover {
  color: #38bdf8 !important;
  transform: translateY(-1px) !important;
}

.top-bar .top-links a {
  margin-left: 20px !important;
}

.top-bar-left {
  display: flex !important;
  align-items: center !important;
  gap: 20px !important;
}

/* Main Header */
.header {
  position: sticky !important;
  top: 0 !important;
  z-index: 1000 !important;
  background: #ffffff !important;
  box-shadow: 0 4px 25px rgba(0, 0, 0, 0.06) !important;
  border-bottom: 1px solid #f1f5f9 !important;
  padding: 8px 0 !important;
}

.header__inner {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
}

.header__logo-img,
.custom-logo,
.header__logo img {
  max-height: 48px !important;
  height: 48px !important;
  width: auto !important;
  object-fit: contain !important;
  transition: transform 0.2s ease !important;
}

.header__nav {
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;
}

.header__nav-link {
  display: inline-block !important;
  padding: 8px 18px !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  color: #334155 !important;
  border-radius: 30px !important;
  text-decoration: none !important;
  transition: all 0.25s ease !important;
}

.header__nav-link:hover {
  color: #7c3aed !important;
  background: #f3e8ff !important;
}

.header__nav-link.is-active {
  background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%) !important;
  color: #ffffff !important;
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.25) !important;
}

.header__actions .btn--primary {
  background: linear-gradient(135deg, #7c3aed 0%, #f59e0b 100%) !important;
  border: none !important;
  color: #ffffff !important;
  border-radius: 30px !important;
  padding: 10px 22px !important;
  font-weight: 700 !important;
  font-size: 14px !important;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3) !important;
  transition: all 0.25s ease !important;
}

.header__actions .btn--primary:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4) !important;
  color: #ffffff !important;
}

.header__actions .btn--ghost {
  color: #475569 !important;
  font-weight: 600 !important;
  padding: 10px 18px !important;
  border-radius: 30px !important;
  transition: all 0.2s ease !important;
}

.header__actions .btn--ghost:hover {
  color: #7c3aed !important;
  background: #f1f5f9 !important;
}

/* ============================================
   HEADER DROPDOWN MENU (MENU 2 CẤP)
   ============================================ */
.header__nav-dropdown {
  position: relative !important;
  display: inline-block !important;
}

.header__dropdown-menu {
  position: absolute !important;
  top: 100% !important;
  left: 0 !important;
  min-width: 240px !important;
  background: #ffffff !important;
  border-radius: 16px !important;
  padding: 10px 0 !important;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.12) !important;
  border: 1px solid #e2e8f0 !important;
  opacity: 0 !important;
  visibility: hidden !important;
  transform: translateY(10px) !important;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
  z-index: 1050 !important;
}

.header__nav-dropdown:hover .header__dropdown-menu {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateY(4px) !important;
}

.header__dropdown-item {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  padding: 10px 20px !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  color: #334155 !important;
  text-decoration: none !important;
  transition: all 0.2s ease !important;
}

.header__dropdown-item:hover {
  background: #f3e8ff !important;
  color: #7c3aed !important;
  padding-left: 24px !important;
}

/* ============================================
   AUTH MODAL STYLES (Popup Đăng nhập / Đăng ký)
   ============================================ */
.auth-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.28s ease, visibility 0.28s ease;
}

.auth-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.auth-modal {
    background: #fff;
    border-radius: 20px;
    width: 100%;
    max-width: 440px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 32px 32px 28px;
    position: relative;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
    transform: scale(0.94) translateY(12px);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.auth-modal-overlay.active .auth-modal {
    transform: scale(1) translateY(0);
}

.auth-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--border-color, #e2e8f0);
    background: var(--bg-light, #f1f5f9);
    color: var(--text-muted, #64748b);
    font-size: 13px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
    z-index: 1;
}

.auth-modal-close:hover {
    background: var(--primary, #7c3aed);
    color: #fff;
    border-color: var(--primary, #7c3aed);
}

.amodal-tabs {
    display: flex;
    background: var(--bg-light, #f1f5f9);
    border-radius: 30px;
    padding: 4px;
    position: relative;
    margin-bottom: 24px;
}

.amodal-tab {
    flex: 1;
    padding: 9px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    background: none;
    border-radius: 26px;
    cursor: pointer;
    color: var(--text-muted, #64748b);
    transition: color 0.25s;
    position: relative;
    z-index: 1;
    font-family: var(--font-family, 'Inter', sans-serif);
}

.amodal-tab.active {
    color: var(--primary, #7c3aed);
}

.amodal-tab-bar {
    position: absolute;
    top: 4px;
    bottom: 4px;
    background: #fff;
    border-radius: 26px;
    transition: left 0.3s cubic-bezier(.4, 0, .2, 1), width 0.3s cubic-bezier(.4, 0, .2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    z-index: 0;
}

.amodal-panel {
    display: none;
}

.amodal-panel.active {
    display: block;
    animation: amodalIn 0.3s ease;
}

@keyframes amodalIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.amodal-header {
    text-align: center;
    margin-bottom: 20px;
}

.amodal-icon {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin: 0 auto 12px;
}

.amodal-icon.login-icon {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.08), rgba(245, 158, 11, 0.12));
    color: var(--primary, #7c3aed);
}

.amodal-icon.reg-icon {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(34, 197, 94, 0.1));
    color: var(--secondary, #f59e0b);
}

.amodal-header h2 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-dark, #1e293b);
    margin-bottom: 4px;
}

.amodal-header p {
    font-size: 13px;
    color: var(--text-muted, #64748b);
    margin: 0;
}

.amodal-social {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}

.amodal-social-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 10px;
    border: 1.5px solid var(--border-color, #e2e8f0);
    border-radius: 10px;
    background: #fff;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    font-family: var(--font-family, 'Inter', sans-serif);
    color: var(--text-dark, #1e293b);
    white-space: nowrap;
}

.amodal-social-btn:hover {
    background: var(--bg-light, #f1f5f9);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.amodal-social-btn.facebook {
    color: #1877f2;
    border-color: rgba(24, 119, 242, 0.3);
}

.amodal-social-btn.facebook:hover {
    background: rgba(24, 119, 242, 0.04);
}

.amodal-divider {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
}

.amodal-divider::before,
.amodal-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-light, #f1f5f9);
}

.amodal-divider span {
    font-size: 12px;
    color: var(--text-muted, #64748b);
}

.amodal-form {
    width: 100%;
}

.amodal-field {
    margin-bottom: 16px;
}

.amodal-field>label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dark, #1e293b);
    margin-bottom: 6px;
}

.amodal-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.amodal-label-row label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dark, #1e293b);
}

.amodal-forgot {
    font-size: 12px;
    font-weight: 600;
    color: var(--secondary, #f59e0b);
    text-decoration: none;
    transition: color 0.2s;
}

.amodal-forgot:hover {
    color: var(--primary, #7c3aed);
}

.amodal-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
    border: 1.5px solid var(--border-color, #e2e8f0);
    border-radius: 10px;
    background: var(--bg-light, #f1f5f9);
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.amodal-input-wrap.focused {
    border-color: var(--primary, #7c3aed);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.amodal-input-wrap>i {
    position: absolute;
    left: 13px;
    color: var(--text-muted, #64748b);
    font-size: 13px;
    pointer-events: none;
    transition: color 0.2s;
}

.amodal-input-wrap.focused>i {
    color: var(--primary, #7c3aed);
}

.amodal-input-wrap input {
    width: 100%;
    padding: 10px 40px 10px 38px;
    border: none;
    background: transparent;
    font-family: var(--font-family, 'Inter', sans-serif);
    font-size: 14px;
    color: var(--text-dark, #1e293b);
    outline: none;
    border-radius: 10px;
}

.amodal-input-wrap input::placeholder {
    color: #c5cdd8;
}

.amodal-eye {
    position: absolute;
    right: 11px;
    background: none;
    border: none;
    color: var(--text-muted, #64748b);
    cursor: pointer;
    font-size: 13px;
    padding: 4px;
    transition: color 0.2s;
}

.amodal-eye:hover {
    color: var(--primary, #7c3aed);
}

.amodal-strength {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 8px;
}

.astrength-bar {
    flex: 1;
    height: 4px;
    background: var(--border-light, #f1f5f9);
    border-radius: 2px;
    overflow: hidden;
}

.astrength-bar span {
    display: block;
    height: 100%;
    border-radius: 2px;
    transition: width 0.35s ease, background 0.35s ease;
    width: 0;
}

#aStrengthLabel {
    font-size: 12px;
    font-weight: 600;
    min-width: 70px;
    text-align: right;
}

.amodal-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, var(--primary, #7c3aed), var(--secondary, #f59e0b));
    cursor: pointer;
    font-family: var(--font-family, 'Inter', sans-serif);
    transition: all 0.25s ease;
    box-shadow: 0 4px 14px rgba(124, 58, 237, 0.25);
    margin-bottom: 16px;
}

.amodal-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.35);
}

.amodal-submit:disabled {
    opacity: 0.8;
    cursor: not-allowed;
    transform: none;
}

.amodal-submit i {
    transition: transform 0.25s ease;
}

.amodal-submit:hover i {
    transform: translateX(4px);
}

.amodal-submit-otp {
    background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%) !important;
}

.amodal-submit-otp:hover {
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.28) !important;
}

.amodal-error {
    background: #fef2f2;
    color: #dc2626;
    font-size: 13px;
    padding: 10px 14px;
    border-radius: 8px;
    border: 1px solid #fecaca;
    margin-bottom: 10px;
    text-align: center;
    animation: authShake 0.4s ease;
}

@keyframes authShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
}

.amodal-alt {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted, #64748b);
}

.amodal-alt a {
    color: var(--secondary, #f59e0b);
    font-weight: 700;
    text-decoration: none;
}

.amodal-alt a:hover {
    color: var(--primary, #7c3aed);
}

.auth-modal::-webkit-scrollbar {
    width: 5px;
}

.auth-modal::-webkit-scrollbar-thumb {
    background: #dde3ee;
    border-radius: 3px;
}

@media (max-width: 480px) {
    .auth-modal {
        padding: 24px 20px 20px;
    }
    .amodal-social {
        flex-direction: column;
    }
}

/* ============================================
   MOBILE RESPONSIVE OVERRIDES
   ============================================ */

/* Tablet ≤1024px: Ẩn nav desktop + nút actions, hiện hamburger */
@media (max-width: 1024px) {
  .header__nav {
    display: none !important;
  }

  .header__actions {
    display: none !important;
  }

  .header__menu-toggle {
    display: flex !important;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: #334155;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
  }

  .header__menu-toggle:hover {
    background: #f1f5f9;
    color: #7c3aed;
  }

  /* Top bar responsive: thu gọn trên tablet */
  .top-bar .container {
    flex-wrap: wrap !important;
    gap: 4px !important;
    font-size: 12px !important;
  }

  .top-bar-left {
    gap: 12px !important;
    font-size: 12px !important;
  }

  .top-bar .top-links a {
    margin-left: 12px !important;
    font-size: 12px !important;
  }
}

/* Mobile ≤768px: Ẩn top-links, chỉ giữ email + phone */
@media (max-width: 768px) {
  .top-bar .top-links {
    display: none !important;
  }

  .top-bar .container {
    justify-content: center !important;
  }

  .top-bar-left {
    gap: 16px !important;
    font-size: 12px !important;
    justify-content: center !important;
    width: 100%;
  }

  .header__logo-img,
  .custom-logo,
  .header__logo img {
    max-height: 40px !important;
    height: 40px !important;
  }

  /* Mobile nav panel rộng hơn */
  .mobile-nav__panel {
    width: 300px;
  }
}

/* Mobile nhỏ ≤576px: Ẩn hoàn toàn top bar, header compact */
@media (max-width: 576px) {
  .top-bar {
    display: none !important;
  }

  .header {
    padding: 6px 0 !important;
  }

  .header__logo-img,
  .custom-logo,
  .header__logo img {
    max-height: 36px !important;
    height: 36px !important;
  }

  .header__menu-toggle {
    width: 40px !important;
    height: 40px !important;
  }

  /* Mobile nav full width */
  .mobile-nav__panel {
    width: 85vw;
    max-width: 320px;
  }

  .mobile-nav__link {
    font-size: 15px;
    padding: 12px 16px;
  }
}