/**
 * THÁI DƯƠNG FULFILLMENT - GLOBAL STYLES & LAYOUT SYSTEM
 * Kết nối tokens.css, typography.css và components.css
 */

@import url('./tokens.css?v=1');
@import url('./typography.css?v=1');
@import url('./components.css?v=1');

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background-color: var(--color-bg-page);
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  overflow-x: hidden;
}

img, svg, picture, video {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ==========================================================================
   LAYOUT CONTAINERS & SECTION WRAPPERS
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  position: relative;
}

.section-header {
  margin-bottom: var(--space-2xl);
}

.section-header.text-center {
  text-align: center;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.section-header.flex-between {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.section-title {
  margin-top: var(--space-2xs);
}

.section-desc {
  margin-top: var(--space-xs);
  color: var(--color-text-secondary);
  font-size: var(--text-md);
  line-height: var(--leading-relaxed);
}

/* ==========================================================================
   GRID LAYOUT UTILITIES
   ========================================================================== */

/* Service Grid: 4 cards trên, 3 cards dưới đúng theo Mockup */
.services-grid-layout {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
}

.service-item-top {
  grid-column: span 3;
}

.service-item-bottom {
  grid-column: span 4;
}

/* 3-Column Warehouses Grid */
.warehouses-grid-layout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* 3-Column Blog Grid */
.blogs-grid-layout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* ==========================================================================
   HERO SPECIFIC LAYOUT
   ========================================================================== */
.hero-section {
  padding-top: clamp(2rem, 1.5rem + 2vw, 3.5rem);
  padding-bottom: var(--space-2xl);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.hero-subheading {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
}

.hero-usps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.hero-usp-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.hero-usp-icon {
  width: 32px;
  height: 32px;
  min-width: 32px;
  color: var(--color-navy-900);
}

.hero-usp-text {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.25;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-visual-wrapper {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-elevated);
}

.hero-visual-wrapper img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-2xl);
  transform: scale(1.01);
}

/* ==========================================================================
   ABOUT SECTION LAYOUT
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.about-stats-row {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.about-stat-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.about-stat-icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  color: var(--color-teal-600);
}

.about-stat-val {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--color-navy-900);
  line-height: 1;
}

.about-stat-lbl {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.about-media-wrapper {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-elevated);
}

.about-media-wrapper img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

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

/* Tablet (<= 1024px) */
@media (max-width: 1024px) {
  .nav-menu {
    display: none; /* Sẽ tích hợp drawer menu mobile */
  }

  .mobile-menu-btn {
    display: flex;
  }

  .header-right .btn {
    display: none;
  }

  .hero-grid,
  .about-grid,
  .cta-banner-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .hero-usps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .stats-bar-card {
    flex-direction: column;
    align-items: stretch;
  }

  .stats-lead-pill {
    text-align: center;
  }

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

  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--color-border-subtle);
    padding-bottom: var(--space-sm);
  }

  .service-item-top,
  .service-item-bottom {
    grid-column: span 6;
  }

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

  .timeline-track {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
  }

  .timeline-step::after {
    display: none;
  }

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

/* ==========================================================================
   TABLET & MOBILE SLIDERS (<= 768px)
   Tối ưu chiều dọc trang bằng thanh trượt vuốt chạm mượt mà (CSS Scroll Snap)
   ========================================================================== */
@media (max-width: 768px) {
  .mobile-swipe-hint {
    display: inline-flex;
  }

  .slider-dots {
    display: flex;
  }

  /* Kích hoạt chế độ slider lướt ngang cho các container có class .mobile-slider */
  .mobile-slider {
    display: flex !important;
    overflow-x: auto !important;
    scroll-snap-type: x mandatory !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important; /* Firefox */
    gap: 1rem !important;
    padding-bottom: 0.75rem !important;
    padding-top: 0.25rem !important;
    margin-left: calc(-1 * var(--container-padding)) !important;
    margin-right: calc(-1 * var(--container-padding)) !important;
    padding-left: var(--container-padding) !important;
    padding-right: var(--container-padding) !important;
    scroll-behavior: smooth;
  }

  .mobile-slider::-webkit-scrollbar {
    display: none !important; /* Chrome, Safari, Edge */
  }

  /* Thẻ con trong slider lướt ngang */
  .mobile-slider > * {
    scroll-snap-align: start !important;
    flex: 0 0 84% !important; /* Rộng 84% để chừa 16% thẻ tiếp theo kích thích lướt */
    max-width: 84% !important;
    box-sizing: border-box !important;
  }

  /* Riêng timeline 5 bước: gọn hơn (76% mỗi bước) dạng thẻ độc lập */
  .timeline-track.mobile-slider > * {
    flex: 0 0 76% !important;
    max-width: 76% !important;
    background-color: var(--color-surface-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1rem;
    box-shadow: var(--shadow-card);
  }

  .timeline-step::after {
    display: none !important;
  }
}

/* Mobile nhỏ (<= 640px) */
@media (max-width: 640px) {
  /* Giữ 2 cột cho USPs và Stats thay vì 1 cột kéo dài trang */
  .hero-usps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xs);
  }

  .hero-usp-item {
    gap: 6px;
  }

  .hero-usp-icon {
    width: 24px;
    height: 24px;
    min-width: 24px;
  }

  .hero-usp-text {
    font-size: 0.75rem;
  }

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

  .stat-item {
    padding: 0.5rem;
    border-right: none;
    border-bottom: none;
    background-color: var(--color-navy-50);
    border-radius: var(--radius-md);
  }

  .stat-icon {
    width: 36px;
    height: 36px;
    min-width: 36px;
  }

  .stat-value {
    font-size: 1.125rem;
  }

  .about-stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xs);
  }

  .about-stat-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 4px;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}