@import "tailwindcss";
/* Font Awesome loaded via CDN in layout.tsx */

/* ===== CUSTOM THEME (Tailwind CSS v4) ===== */
@theme {
  /* === Color Palette - Pharmaceutical Theme === */
  --color-primary-50: #e6f0fa;
  --color-primary-100: #cce1f5;
  --color-primary-200: #99c3eb;
  --color-primary-300: #66a5e0;
  --color-primary-400: #3387d6;
  --color-primary-500: #0066b3;
  --color-primary-600: #00528f;
  --color-primary-700: #003d6b;
  --color-primary-800: #002948;
  --color-primary-900: #001424;

  --color-secondary-50: #e6f7ed;
  --color-secondary-100: #ccefdb;
  --color-secondary-200: #99dfb7;
  --color-secondary-300: #66cf93;
  --color-secondary-400: #33bf6f;
  --color-secondary-500: #00a651;
  --color-secondary-600: #008541;
  --color-secondary-700: #006431;
  --color-secondary-800: #004220;
  --color-secondary-900: #002110;

  --color-accent-50: #f0f8ff;
  --color-accent-100: #e8f4fd;
  --color-accent-200: #d1e9fb;
  --color-accent-300: #a3d3f7;
  --color-accent-400: #75bdf3;

  --color-surface-50: #fafbfc;
  --color-surface-100: #f5f7fa;
  --color-surface-200: #edf0f5;
  --color-surface-300: #dde2ea;
  --color-surface-400: #c5ccda;

  --color-dark-50: #e8eaed;
  --color-dark-100: #c4c8cf;
  --color-dark-200: #9da3ae;
  --color-dark-300: #757e8d;
  --color-dark-400: #58626f;
  --color-dark-500: #3b4553;
  --color-dark-600: #2d3542;
  --color-dark-700: #1f2632;
  --color-dark-800: #141a24;
  --color-dark-900: #0a0e14;

  /* === Fonts (Next.js font variables sẽ ghi đè khi load) === */
  --font-heading: 'Be Vietnam Pro', 'Inter', ui-sans-serif, system-ui, sans-serif;
  --font-body: 'Inter', 'Be Vietnam Pro', ui-sans-serif, system-ui, sans-serif;

  /* === Spacing === */
  --spacing-section: 5rem;

  /* === Shadows === */
  --shadow-card: 0 2px 12px rgba(0, 102, 179, 0.08);
  --shadow-card-hover: 0 8px 30px rgba(0, 102, 179, 0.15);
  --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.08);

  /* === Border Radius === */
  --radius-card: 1rem;
  --radius-button: 0.625rem;
  --radius-badge: 2rem;

  /* === Animations === */
  --animate-fade-in: fade-in 0.6s ease-out forwards;
  --animate-fade-in-up: fade-in-up 0.6s ease-out forwards;
  --animate-fade-in-down: fade-in-down 0.5s ease-out forwards;
  --animate-slide-in-left: slide-in-left 0.6s ease-out forwards;
  --animate-slide-in-right: slide-in-right 0.6s ease-out forwards;
  --animate-scale-in: scale-in 0.4s ease-out forwards;
  --animate-pulse-soft: pulse-soft 2s ease-in-out infinite;
  --animate-shimmer: shimmer 1.5s ease-in-out infinite;
  --animate-float: float 3s ease-in-out infinite;
  --animate-spin-slow: spin 8s linear infinite;

  @keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
  }

  @keyframes fade-in-up {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
  }

  @keyframes fade-in-down {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
  }

  @keyframes slide-in-left {
    from { opacity: 0; transform: translateX(-40px); }
    to { opacity: 1; transform: translateX(0); }
  }

  @keyframes slide-in-right {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
  }

  @keyframes scale-in {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
  }

  @keyframes pulse-soft {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
  }

  @keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
  }

  @keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
  }
}

/* ===== BASE STYLES ===== */
@layer base {
  * {
    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-body-next, var(--font-body));
    color: var(--color-dark-700);
    background-color: #ffffff;
    line-height: 1.7;
    overflow-x: hidden;
  }

  h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading-next, var(--font-heading));
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-dark-800);
  }

  h1 { font-size: 2.75rem; }
  h2 { font-size: 2.25rem; }
  h3 { font-size: 1.5rem; }
  h4 { font-size: 1.25rem; }

  a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
  }

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

  /* Custom scrollbar */
  ::-webkit-scrollbar {
    width: 8px;
  }
  ::-webkit-scrollbar-track {
    background: var(--color-surface-100);
  }
  ::-webkit-scrollbar-thumb {
    background: var(--color-primary-300);
    border-radius: 4px;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-500);
  }

  /* Selection */
  ::selection {
    background: var(--color-primary-200);
    color: var(--color-primary-800);
  }
}

/* ===== UTILITIES ===== */
@layer utilities {
  .text-gradient {
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .bg-gradient-primary {
    background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-400));
  }

  .bg-gradient-hero {
    background: linear-gradient(135deg, var(--color-primary-700) 0%, var(--color-primary-500) 50%, var(--color-secondary-500) 100%);
  }

  .bg-glass {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  .bg-glass-dark {
    background: rgba(15, 23, 36, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  .section-padding {
    padding-top: var(--spacing-section);
    padding-bottom: var(--spacing-section);
  }

  .container-custom {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  @media (min-width: 640px) {
    .container-custom {
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
  }

  @media (min-width: 1024px) {
    .container-custom {
      padding-left: 2rem;
      padding-right: 2rem;
    }
  }

  /* Skeleton loading */
  .skeleton {
    background: linear-gradient(90deg, var(--color-surface-200) 25%, var(--color-surface-100) 50%, var(--color-surface-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
    border-radius: 0.5rem;
  }

  /* Card hover lift effect */
  .card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .card-hover:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
  }

  /* Image zoom on hover */
  .img-zoom {
    overflow: hidden;
  }
  .img-zoom img {
    transition: transform 0.5s ease;
  }
  .img-zoom:hover img {
    transform: scale(1.08);
  }

  /* Line clamp utilities */
  .line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
}

/* ===== LOADING SCREEN ===== */
.loading-screen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-700), var(--color-primary-500));
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-logo {
  animation: pulse-soft 1.5s ease-in-out infinite;
}

.loading-bar {
  width: 200px;
  height: 3px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  margin-top: 2rem;
  overflow: hidden;
}

.loading-bar-inner {
  height: 100%;
  background: white;
  border-radius: 2px;
  animation: loading-progress 1.5s ease-in-out infinite;
}

@keyframes loading-progress {
  0% { width: 0; margin-left: 0; }
  50% { width: 70%; margin-left: 15%; }
  100% { width: 0; margin-left: 100%; }
}

/* ===== SWIPER CUSTOM ===== */
.swiper-pagination-bullet {
  background: white !important;
  opacity: 0.5 !important;
  width: 12px !important;
  height: 12px !important;
}

.swiper-pagination-bullet-active {
  opacity: 1 !important;
  background: var(--color-secondary-400) !important;
  width: 32px !important;
  border-radius: 6px !important;
}

/* ===== RESPONSIVE TYPOGRAPHY ===== */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.25rem; }

  .section-padding {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }
}

/* ===== ARTICLE / PROSE OVERRIDES ===== */
.prose img {
  height: auto !important;
  max-width: 100% !important;
  object-fit: contain;
}