/* ========================================
   ACADIA PATH - MODERN DESIGN SYSTEM
   Bento Grid | Bilingual | Theme-Aware
   ======================================== */

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

/* ========================================
   CSS CUSTOM PROPERTIES (THEME-AWARE)
   ======================================== */

:root {
  /* Light Theme Colors */
  --color-primary: #0D47A1;
  --color-primary-light: #42A5F5;
  --color-secondary: #4CAF50;
  --color-accent: #FF6B35;
  --color-background: #FFFFFF;
  --color-surface: #F8FAFB;
  --color-surface-secondary: #F0F2F5;
  --color-text-primary: #1A1A1A;
  --color-text-secondary: #5A5A5A;
  --color-text-tertiary: #8A8A8A;
  --color-border: #E0E0E0;
  --color-shadow: rgba(0, 0, 0, 0.08);
  --color-shadow-lg: rgba(0, 0, 0, 0.12);

  /* Dark Theme (will be overridden by data-theme="dark") */
  --color-primary-dark: #42A5F5;
  --color-secondary-dark: #66BB6A;
  --color-accent-dark: #FFA726;
  --color-background-dark: #0F1419;
  --color-surface-dark: #1E2329;
  --color-surface-secondary-dark: #2A3139;
  --color-text-primary-dark: #E8EAED;
  --color-text-secondary-dark: #A8ABAF;
  --color-text-tertiary-dark: #7E8185;
  --color-border-dark: #3A4149;
  --color-shadow-dark: rgba(0, 0, 0, 0.3);
  --color-shadow-lg-dark: rgba(0, 0, 0, 0.5);

  /* Typography */
  --font-display: 'Poppins', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Space Mono', monospace;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Grid */
  --gap-grid: 1.5rem;
  --gap-grid-mobile: 1rem;
}

/* Dark Theme */
[data-theme="dark"] {
  --color-primary: #42A5F5;
  --color-primary-light: #64B5F6;
  --color-secondary: #66BB6A;
  --color-accent: #FFA726;
  --color-background: #0F1419;
  --color-surface: #1E2329;
  --color-surface-secondary: #2A3139;
  --color-text-primary: #E8EAED;
  --color-text-secondary: #A8ABAF;
  --color-text-tertiary: #7E8185;
  --color-border: #3A4149;
  --color-shadow: rgba(0, 0, 0, 0.3);
  --color-shadow-lg: rgba(0, 0, 0, 0.5);
}

/* ========================================
   GLOBAL STYLES
   ======================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  line-height: 1.6;
  transition: background-color var(--transition-normal),
              color var(--transition-normal);
  font-size: 16px;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1 {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

h2 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

h3 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

h4 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

h5 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

h6 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

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

a:hover {
  color: var(--color-accent);
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-lg);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(13, 71, 161, 0.2);
}

.btn-primary:hover {
  background-color: var(--color-primary-light);
  box-shadow: 0 6px 16px rgba(13, 71, 161, 0.3);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(76, 175, 80, 0.2);
}

.btn-secondary:hover {
  background-color: #45a049;
  box-shadow: 0 6px 16px rgba(76, 175, 80, 0.3);
  transform: translateY(-2px);
}

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

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

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.875rem;
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 1.125rem;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

header {
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-normal);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg) 0;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.navbar-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-link {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-size: 0.95rem;
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
  padding: var(--spacing-sm);
}

.nav-toggle:hover {
  color: var(--color-primary);
}

/* ========================================
   BENTO GRID SYSTEM
   ======================================== */

.bento-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--gap-grid);
  margin-bottom: var(--spacing-3xl);
}

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

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

.bento-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.bento-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.1));
  transition: left var(--transition-slow);
}

.bento-item:hover {
  border-color: var(--color-primary);
  box-shadow: 0 12px 32px var(--color-shadow-lg);
  transform: translateY(-4px);
}

.bento-item:hover::before {
  left: 100%;
}

.bento-item.large {
  grid-column: span 2;
}

.bento-item.tall {
  grid-row: span 2;
}

@media (max-width: 768px) {
  .bento-grid-2,
  .bento-grid-3 {
    grid-template-columns: 1fr;
  }

  .bento-item.large,
  .bento-item.tall {
    grid-column: span 1;
    grid-row: span 1;
  }
}

/* ========================================
   CARDS & COMPONENTS
   ======================================== */

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 12px 32px var(--color-shadow-lg);
}

.card-header {
  padding: var(--spacing-2xl);
  border-bottom: 1px solid var(--color-border);
}

.card-body {
  padding: var(--spacing-2xl);
}

.card-footer {
  padding: var(--spacing-lg) var(--spacing-2xl);
  background-color: var(--color-surface-secondary);
  border-top: 1px solid var(--color-border);
}

/* Hero Section */
.hero-section {
  background-color: var(--color-surface);
  padding: var(--spacing-4xl) var(--spacing-lg);
  margin-bottom: var(--spacing-4xl);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--color-primary) 0%, transparent 70%);
  opacity: 0.05;
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
}

.hero-text h1 {
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
}

.hero-text p {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-2xl);
  color: var(--color-text-secondary);
}

.hero-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px var(--color-shadow-lg);
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ========================================
   SECTIONS
   ======================================== */

section {
  padding: var(--spacing-4xl) var(--spacing-lg);
  max-width: 1280px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
  margin-bottom: var(--spacing-md);
}

.section-header .subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   FOOTER
   ======================================== */

footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-xl);
  margin-top: var(--spacing-4xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-2xl);
  max-width: 1280px;
  margin: 0 auto var(--spacing-2xl);
}

.footer-section h5 {
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
}

.footer-section p {
  font-size: 0.95rem;
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-size: 0.95rem;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-tertiary);
  font-size: 0.9rem;
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-surface-secondary);
  border-radius: var(--radius-full);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-3px);
}

/* ========================================
   ANIMATIONS
   ======================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in-up {
  animation: fadeInUp var(--transition-normal) ease-out forwards;
}

.fade-in {
  animation: fadeIn var(--transition-normal) ease-out forwards;
}

.stagger > * {
  animation: fadeInUp var(--transition-normal) ease-out forwards;
}

.stagger > *:nth-child(1) { animation-delay: 0.1s; }
.stagger > *:nth-child(2) { animation-delay: 0.2s; }
.stagger > *:nth-child(3) { animation-delay: 0.3s; }
.stagger > *:nth-child(4) { animation-delay: 0.4s; }
.stagger > *:nth-child(5) { animation-delay: 0.5s; }
.stagger > *:nth-child(6) { animation-delay: 0.6s; }

/* ========================================
   UTILITIES
   ======================================== */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }
.mt-3xl { margin-top: var(--spacing-3xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }
.mb-3xl { margin-bottom: var(--spacing-3xl); }

.py-sm { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-md { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-lg { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-xl { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }
.py-2xl { padding-top: var(--spacing-2xl); padding-bottom: var(--spacing-2xl); }
.py-3xl { padding-top: var(--spacing-3xl); padding-bottom: var(--spacing-3xl); }

.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

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

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

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

.accent-color {
  color: var(--color-accent);
}

.bg-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

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

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  h3 {
    font-size: 1.375rem;
  }

  section {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .navbar-nav {
    gap: var(--spacing-md);
  }

  .nav-link {
    font-size: 0.9rem;
  }

  .btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.9rem;
  }
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
  body {
    background-color: #FFFFFF;
    color: #000000;
  }

  a {
    color: #0D47A1;
  }

  .no-print {
    display: none;
  }
}