/* Theme Variables and Apple-Style Design */

:root {
  /* Light mode colors */
  --bg-primary: #10B981;
  --bg-secondary: #059669;
  --bg-tertiary: #ECFDF5;
  --text-primary: #000000;
  --text-secondary: #374151;
  --text-tertiary: #6B7280;
  --accent-red: #DC2626;
  --accent-red-hover: #B91C1C;
  --card-bg: #FFFFFF;
  --border-color: #E5E7EB;
  --shadow-light: rgba(0, 0, 0, 0.1);
  --shadow-medium: rgba(0, 0, 0, 0.15);
  --shadow-heavy: rgba(0, 0, 0, 0.2);
  
  /* Apple-style spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  
  /* Apple-style typography */
  --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 24px;
  --font-size-3xl: 30px;
  --font-size-4xl: 36px;
  
  /* Apple-style border radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;
  
  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  /* Dark mode colors */
  --bg-primary: #064E3B;
  --bg-secondary: #065F46;
  --bg-tertiary: #022C22;
  --text-primary: #FFFFFF;
  --text-secondary: #F3F4F6;
  --text-tertiary: #D1D5DB;
  --accent-red: #EF4444;
  --accent-red-hover: #DC2626;
  --card-bg: #065F46;
  --border-color: #047857;
  --shadow-light: rgba(0, 0, 0, 0.3);
  --shadow-medium: rgba(0, 0, 0, 0.4);
  --shadow-heavy: rgba(0, 0, 0, 0.5);
}

/* Base Styles */
* {
  box-sizing: border-box;
}

html {
  zoom: 0.9;
}

body {
  font-family: var(--font-system);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-tertiary);
  margin: 0;
  padding: 0;
  transition: background-color var(--transition-base), color var(--transition-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  display: block;
}

/* Apple-style Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  font-size: var(--font-size-base);
  line-height: 1.6;
  margin: 0 0 var(--spacing-md) 0;
}

/* Apple-style Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-system);
  font-size: var(--font-size-base);
  font-weight: 500;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:active::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: var(--accent-red);
  color: white;
  box-shadow: 0 2px 8px var(--shadow-light);
}

.btn-primary:hover {
  background: var(--accent-red-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--shadow-medium);
}

.btn-secondary {
  background: var(--card-bg);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: 0 1px 3px var(--shadow-light);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px var(--shadow-medium);
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

/* Apple-style Cards */
.card {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  box-shadow: 0 1px 3px var(--shadow-light);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--shadow-medium);
}

/* Theme Toggle */
.theme-toggle {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  box-shadow: 0 2px 8px var(--shadow-light);
}

.theme-toggle button {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  color: var(--text-secondary);
}

.theme-toggle button:hover {
  background: var(--bg-tertiary);
}

.theme-toggle button.active {
  background: var(--accent-red);
  color: white;
}

/* Language Toggle */
.lang-toggle {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xs);
  box-shadow: 0 2px 8px var(--shadow-light);
}

.lang-toggle select {
  background: transparent;
  border: none;
  font-family: var(--font-system);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
}

.lang-toggle select:focus-visible {
  outline: 2px solid var(--accent-red);
  outline-offset: 2px;
}

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

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.95);
  -webkit-backdrop-filter: blur(15px) saturate(1.2);
  backdrop-filter: blur(15px) saturate(1.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
  transition: all var(--transition-base);
}

[data-theme="dark"] .navbar {
  background: rgba(255, 255, 255, 0.95);
  -webkit-backdrop-filter: blur(15px) saturate(1.2);
  backdrop-filter: blur(15px) saturate(1.2);
  border-bottom: 1px solid rgba(0, 0, 0, 0.10);
}

 .nav-logo span {
  color: rgba(255, 255, 255, 0.95);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
 }

 [data-theme="dark"] .nav-logo span {
  color: rgba(0, 0, 0, 0.92);
  text-shadow: none;
 }
 
 .navbar .nav-link {
  color: rgba(255, 255, 255, 0.85);
 }
 
 .navbar .nav-link:hover,
 .navbar .nav-link.active {
  color: white;
  background: rgba(255, 255, 255, 0.12);
 }
 
 [data-theme="dark"] .navbar .nav-link {
  color: rgba(0, 0, 0, 0.70);
 }
 
 [data-theme="dark"] .navbar .nav-link:hover,
 [data-theme="dark"] .navbar .nav-link.active {
  color: rgba(0, 0, 0, 0.92);
  background: rgba(0, 0, 0, 0.06);
 }

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

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

.nav-logo img {
  height: 40px;
  width: auto;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
  margin: 0;
  padding: 0;
}

/* Dropdown Menu */
.dropdown {
  position: relative;
}

.dropdown-toggle {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.dropdown-toggle::after {
  content: '▼';
  font-size: 10px;
  transition: transform 0.3s ease;
}

.dropdown:hover .dropdown-toggle::after,
.dropdown.active .dropdown-toggle::after {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1000;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

[data-theme="dark"] .dropdown-menu {
  background: var(--card-bg);
  border-color: var(--border-color);
}

.dropdown:hover .dropdown-menu,
.dropdown.active .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li {
  border-bottom: 1px solid var(--border-color);
}

.dropdown-menu li:last-child {
  border-bottom: none;
}

.dropdown-menu a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-primary);
  text-decoration: none;
  transition: all 0.2s ease;
  font-size: 14px;
}

.dropdown-menu a:hover {
  background: rgba(0, 0, 0, 0.06);
  color: var(--text-primary);
}

.dropdown-menu li {
  border-bottom: 1px solid var(--border-color);
}

.dropdown-menu li:last-child {
  border-bottom: none;
}

/* Mobile dropdown adjustments */
@media (max-width: 768px) {
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: rgba(30, 30, 30, 0.9);
    margin-top: var(--spacing-xs);
    margin-left: var(--spacing-md);
    border-radius: var(--radius-md);
    padding: 0.125rem;
    display: block;
  }
  
  [data-theme="light"] .dropdown-menu {
    background: rgba(30, 30, 30, 0.85);
  }
  
  .dropdown-menu li {
    border-bottom: none;
  }
  
  .dropdown-menu a {
    padding: 0.375rem 0.75rem;
    font-size: 13px;
    color: white;
    display: block;
    margin-bottom: 0.0625rem;
  }
  
  .dropdown-menu a:last-child {
    margin-bottom: 0;
  }
  
  .dropdown-menu a:hover {
    background: rgba(255, 255, 255, 0.1);
  }
  
  .dropdown-toggle::after {
    display: none;
  }
}

/* Footer */
.footer {
  background: rgba(0, 0, 0, 0.95);
  color: rgba(255, 255, 255, 0.92);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
  border-top: 1px solid rgba(255, 255, 255, 0.20);
  -webkit-backdrop-filter: blur(10px) contrast(1.1) brightness(0.8);
  backdrop-filter: blur(10px) contrast(1.1) brightness(0.8);
  position: relative;
  overflow: hidden;
}

 .footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("../images/footer background.webp");
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  pointer-events: none;
 }

[data-theme="dark"] .footer {
  background: rgba(255, 255, 255, 0.98);
  color: rgba(0, 0, 0, 0.86);
  text-shadow: none;
  border-top: 1px solid rgba(0, 0, 0, 0.10);
}

 .footer h3,
 .footer h4,
 .footer p,
 .footer a {
  color: rgba(255, 255, 255, 0.92);
 }

 [data-theme="dark"] .footer h3,
 [data-theme="dark"] .footer h4,
 [data-theme="dark"] .footer p,
 [data-theme="dark"] .footer a {
  color: rgba(0, 0, 0, 0.86);
 }

.footer .container {
  padding-top: var(--spacing-2xl);
  padding-bottom: var(--spacing-xl);
  position: relative;
  z-index: 1;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.footer-logo img {
  height: 44px;
  width: auto;
}

 .footer-logo h3 {
  font-size: 1.25rem;
  margin-bottom: 0;
 }

.footer-section h3,
.footer-section h4 {
  color: white;
  margin-bottom: var(--spacing-md);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
}

.footer-section p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-md);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--spacing-sm);
}

.footer-section a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

.footer-section a:hover {
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.9);
}

.footer-bottom {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-sm);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

@media (max-width: 900px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-base);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

/* Mobile Menu */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.hamburger span {
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  margin: 2px 0;
  transition: all var(--transition-base);
  border-radius: 1px;
}

/* Sections */
.section {
  padding: var(--spacing-2xl) 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  color: var(--text-primary);
  padding: 120px 0 var(--spacing-2xl);
  text-align: left;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect fill="%23ffffff10" width="50" height="50"/><rect fill="%23ffffff10" x="50" y="50" width="50" height="50"/></svg>');
  background-size: 100px 100px;
  opacity: 0.1;
  display: none;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s var(--transition-base);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  opacity: 0.9;
  margin-bottom: var(--spacing-2xl);
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s var(--transition-base) 0.2s both;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-container {
    height: 80px;
  }

  .nav-logo img {
    height: 42px;
  }

  .mobile-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-controls {
    gap: var(--spacing-xs);
  }

  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: var(--font-size-lg);
  }
}