/**
 * Travel Affiliate Guru V2.0 — Global Design System
 * All CSS variables, typography, buttons, cards, animations, and dark mode.
 */

/* ============================================================
   GOOGLE FONTS
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ============================================================
   ROOT DESIGN TOKENS
   ============================================================ */
:root {
  /* --- Typography --- */
  --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-h1: 52px;
  --font-size-h2: 40px;
  --font-size-h3: 30px;
  --font-size-body: 17px;
  --font-size-sm: 14px;
  --font-size-xs: 12px;
  --line-height-heading: 1.15;
  --line-height-body: 1.7;

  /* --- Spacing --- */
  --section-pt: 100px;
  --section-pb: 100px;
  --card-padding: 30px;
  --container-max: 1200px;

  /* --- Shape --- */
  --radius: 18px;
  --radius-sm: 10px;
  --radius-btn: 12px;
  --radius-pill: 9999px;

  /* --- Shadows --- */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.14);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.18);
  --shadow-card-hover: 0 20px 50px rgba(0,0,0,0.18);

  /* --- Transitions --- */
  --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.18s ease;
  --transition-bounce: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* === DYNAMIC COLOR SYSTEM — Defaults (Classic Sky) === */
  --primary:        #2563EB;
  --primary-hover:  #0052a3;
  --secondary:      #e8f1fb;
  --accent:         #2563EB;
  --accent-hover:   #e55a26;

  /* Text */
  --color-heading:  #0f172a;
  --color-body:     #374151;
  --color-muted:    #6b7280;
  --color-subtle:   #9ca3af;
  --color-white:    #ffffff;

  /* Backgrounds */
  --bg:             #f8fafc;
  --bg-alt:         #f1f5f9;
  --bg-card:        #ffffff;
  --bg-dark:        #0f172a;

  /* Borders */
  --border:         #e2e8f0;
  --border-hover:   #cbd5e1;

  /* Status */
  --success:        #10b981;
  --warning:        #f59e0b;
  --error:          #ef4444;
  --info:           #3b82f6;

  /* Legacy alias for backwards compat */
  --primary-color:  var(--primary);
  --ta-orange:      var(--primary);
}

/* ============================================================
   COLOR SCHEME OVERRIDES
   Injected by PHP when a preset is selected
   ============================================================ */

/* Beach Vibes */
body.color-scheme-beach {
  --primary:        #00bfa5;
  --primary-hover:  #00a08a;
  --accent:         #ff8f00;
  --secondary:      #e0f7f4;
  --ta-orange:      #00bfa5;
}

/* Royal Gold */
body.color-scheme-gold {
  --primary:        #c9a227;
  --primary-hover:  #a8851f;
  --accent:         #8b2252;
  --secondary:      #fdf6e3;
  --ta-orange:      #c9a227;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  color: var(--color-body);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  line-height: var(--line-height-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }

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

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

.container, .wrap {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   SECTION UTILITIES
   ============================================================ */
.section-pad {
  padding: var(--section-pt) 0 var(--section-pb);
}
.section-pad-sm {
  padding: 60px 0;
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-header h2 {
  margin-bottom: 16px;
}
.section-header p {
  font-size: 18px;
  color: var(--color-muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}
.section-badge {
  display: inline-block;
  background: var(--secondary);
  color: var(--primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ============================================================
   GLOBAL BUTTON SYSTEM
   ============================================================ */
.btn,
button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 14px 28px;
  border-radius: var(--radius-btn);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: var(--transition);
}
.btn:hover::after { background: rgba(255,255,255,0.08); }

/* Primary */
.btn-primary {
  background: var(--primary);
  color: var(--color-white);
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(0,102,204,0.35);
}
.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,102,204,0.45);
}

/* Secondary */
.btn-secondary {
  background: var(--secondary);
  color: var(--primary);
  border-color: var(--secondary);
}
.btn-secondary:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-2px);
}

/* Outline */
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
}

/* Ghost */
.btn-ghost {
  background: transparent;
  color: var(--color-body);
  border-color: var(--border);
}
.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Large CTA */
.btn-large-cta {
  padding: 18px 44px;
  font-size: 17px;
  border-radius: var(--radius-pill);
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 6px 20px rgba(0,102,204,0.4);
}
.btn-large-cta:hover {
  background: var(--primary-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0,102,204,0.5);
  color: white;
}

/* Accent CTA */
.btn-accent {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  box-shadow: 0 4px 14px rgba(255,107,53,0.35);
}
.btn-accent:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,107,53,0.45);
}

/* White */
.btn-white {
  background: white;
  color: var(--primary);
  border-color: white;
}
.btn-white:hover {
  background: var(--secondary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* ============================================================
   CARD SYSTEM
   ============================================================ */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-hover);
}
.card-body {
  padding: var(--card-padding);
}

/* ============================================================
   BADGE SYSTEM
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.badge-primary { background: var(--secondary); color: var(--primary); }
.badge-success { background: #d1fae5; color: #065f46; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-error   { background: #fee2e2; color: #991b1b; }
.badge-accent  { background: #fff0eb; color: var(--accent); }
.badge-dark    { background: var(--bg-dark); color: white; }

/* ============================================================
   GLASS MORPHISM
   ============================================================ */
.glass {
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
}
.glass-dark {
  background: rgba(15,23,42,0.5);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.05); }
}
@keyframes countUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animate-fade-up    { animation: fadeInUp 0.6s ease both; }
.animate-fade-in    { animation: fadeIn 0.6s ease both; }
.animate-slide-left { animation: slideInLeft 0.6s ease both; }
.animate-scale-in   { animation: scaleIn 0.5s ease both; }

/* Stagger delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   DARK MODE
   ============================================================ */
body.dark-mode,
.dark-mode {
  --primary:        #3b82f6;
  --primary-hover:  #2563eb;
  --secondary:      #1e3a5f;
  --accent:         #f97316;
  --accent-hover:   #ea6c0a;
  --color-heading:  #f1f5f9;
  --color-body:     #cbd5e1;
  --color-muted:    #94a3b8;
  --color-subtle:   #64748b;
  --bg:             #0f172a;
  --bg-alt:         #1e293b;
  --bg-card:        #1e293b;
  --bg-dark:        #020617;
  --border:         #334155;
  --border-hover:   #475569;
  --ta-orange:      #3b82f6;
  --ta-nav-bg:      #0f172a;
  --ta-footer-top-bg: #020617;
  --ta-footer-bottom-bg: #020617;
}

/* ============================================================
   RESPONSIVE TYPOGRAPHY
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --font-size-h1: 36px;
    --font-size-h2: 28px;
    --font-size-h3: 22px;
    --section-pt: 60px;
    --section-pb: 60px;
  }
  .container, .wrap {
    padding: 0 16px;
  }
}

/* ============================================================
   ICON STYLES (Font Awesome enhancements)
   ============================================================ */
.icon-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: var(--secondary);
  color: var(--primary);
  transition: var(--transition);
  flex-shrink: 0;
}
.icon-circle:hover,
.card:hover .icon-circle {
  background: var(--primary);
  color: white;
  transform: scale(1.1) rotate(5deg);
}

/* ============================================================
   FORM ELEMENTS
   ============================================================ */
.form-input {
  width: 100%;
  padding: 14px 18px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-body);
  background: var(--bg-card);
  transition: var(--transition-fast);
  outline: none;
}
.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,102,204,0.12);
}
.form-input::placeholder { color: var(--color-subtle); }

/* ============================================================
   RATING STARS
   ============================================================ */
.stars { color: #f59e0b; letter-spacing: 2px; }

/* ============================================================
   LOADING STATES
   ============================================================ */
.skeleton {
  background: linear-gradient(90deg, var(--bg-alt) 25%, var(--bg) 50%, var(--bg-alt) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer {
  from { background-position: -200% 0; }
  to   { background-position: 200% 0; }
}