/* 
 * EnvironmentLA.org - Custom Design System & CSS
 * Author: Antigravity AI Code Assistant
 * Theme: Eco-Glassmorphism, High EEAT & Premium UI
 */

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

:root {
  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* HSL Colors - Light Theme Default */
  --hue-primary: 160; /* Emerald basis */
  --hue-accent: 150;  /* Mint basis */
  
  --bg-base-hsl: 210 40% 98%;
  --bg-surface-hsl: 0 0% 100%;
  --bg-surface-elevated-hsl: 210 40% 95%;
  --border-hsl: 210 30% 90%;
  --text-primary-hsl: 222 47% 11%;
  --text-secondary-hsl: 215 25% 30%;
  --text-muted-hsl: 215 16% 47%;
  
  --accent-hsl: var(--hue-primary) 84% 35%;
  --accent-light-hsl: var(--hue-accent) 76% 48%;
  --accent-dark-hsl: var(--hue-primary) 84% 25%;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Conversions to values */
  --bg-base: hsl(var(--bg-base-hsl));
  --bg-surface: hsl(var(--bg-surface-hsl));
  --bg-surface-elevated: hsl(var(--bg-surface-elevated-hsl));
  --border-color: hsl(var(--border-hsl));
  --text-primary: hsl(var(--text-primary-hsl));
  --text-secondary: hsl(var(--text-secondary-hsl));
  --text-muted: hsl(var(--text-muted-hsl));
  --accent: hsl(var(--accent-hsl));
  --accent-light: hsl(var(--accent-light-hsl));
  --accent-dark: hsl(var(--accent-dark-hsl));
  
  --hero-overlay: linear-gradient(rgba(248, 250, 252, 0.90), rgba(241, 245, 249, 0.95));
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-base-hsl: 222 47% 9%;
    --bg-surface-hsl: 223 47% 13%;
    --bg-surface-elevated-hsl: 223 47% 18%;
    --border-hsl: 223 30% 20%;
    --text-primary-hsl: 210 40% 98%;
    --text-secondary-hsl: 215 20% 75%;
    --text-muted-hsl: 215 15% 55%;
    
    --accent-hsl: var(--hue-primary) 70% 45%;
    --accent-light-hsl: var(--hue-accent) 65% 55%;
    --accent-dark-hsl: var(--hue-primary) 80% 35%;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
    
    --hero-overlay: linear-gradient(rgba(9, 15, 28, 0.82), rgba(9, 15, 28, 0.92));
  }
}

/* Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  letter-spacing: -0.025em;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  position: relative;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  margin-bottom: 1rem;
}

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

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-cols-2 {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

@media (min-width: 768px) {
  .grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* Flex Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-8 { gap: 2rem; }

/* Custom Typography Classes */
.text-center { text-align: center; }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Header & Navigation */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(var(--bg-surface-hsl), 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.nav-container {
  height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-leaf {
  color: var(--accent);
  font-size: 1.75rem;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-menu {
    position: absolute;
    top: 4.5rem;
    left: 0;
    width: 100%;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transform: translateY(-150%);
    transition: transform var(--transition-normal);
  }
  
  .nav-menu.open {
    transform: translateY(0);
  }
  
  .menu-toggle {
    display: block;
  }
}

/* Hero Section */
.hero {
  padding: 8rem 0 6rem;
  position: relative;
  overflow: hidden;
  background: var(--hero-overlay), url('/assets/images/environmental-hero.jpg') no-repeat center center;
  background-size: cover;
}

.hero-content {
  max-width: 48rem;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-xl);
  background-color: rgba(var(--accent-hsl), 0.1);
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 2rem;
  border: 1px solid rgba(var(--accent-hsl), 0.2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-buttons {
  margin-top: 2.5rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.975rem;
  cursor: pointer;
  transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
  border: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--accent);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: var(--accent-dark);
  color: white;
  box-shadow: 0 0 20px rgba(var(--hue-primary), 80%, 40%, 0.3);
}

.btn-secondary {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--border-color);
  color: var(--text-primary);
}

/* Glass Card Component */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(var(--accent-hsl), 0.3);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: var(--accent);
  display: inline-block;
}

/* Sections */
.section {
  padding: 6rem 0;
}

.section-alt {
  background-color: var(--bg-surface-elevated);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-title-area {
  max-width: 36rem;
  margin: 0 auto 4rem;
  text-align: center;
}

/* EEAT & AI Overview Content Optimization */
.ai-summary-box {
  background: linear-gradient(135deg, rgba(var(--bg-surface-hsl), 0.95) 0%, rgba(var(--bg-surface-elevated-hsl), 0.95) 100%);
  border: 2px solid var(--accent);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  margin: 4rem 0;
  box-shadow: var(--shadow-xl);
  position: relative;
}

.ai-summary-box::before {
  content: '🤖 AI Overview & Executive Digest';
  position: absolute;
  top: -14px;
  left: 24px;
  background-color: var(--accent);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
}

.ai-grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

@media (min-width: 768px) {
  .ai-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.ai-item {
  border-left: 3px solid var(--accent-light);
  padding-left: 1rem;
}

.ai-item h4 {
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.eeat-badge-container {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 3rem;
}

.eeat-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.eeat-badge svg {
  color: var(--accent);
  flex-shrink: 0;
}

/* Program Specific Detail Layout */
.program-hero {
  padding: 6rem 0 4rem;
  background: radial-gradient(circle at 10% 20%, rgba(var(--hue-primary), 84%, 35%, 0.06) 0%, transparent 50%);
  border-bottom: 1px solid var(--border-color);
}

.program-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 992px) {
  .program-grid {
    grid-template-columns: 2fr 1fr;
  }
}

.program-body h3 {
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.program-body p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.program-body ul, .program-body ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

.program-body li {
  margin-bottom: 0.5rem;
}

.sidebar-widget {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

/* FAQ Accordion */
.faq-item {
  border-bottom: 1px solid var(--border-color);
  padding: 1.5rem 0;
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  color: var(--text-secondary);
}

.faq-answer p {
  padding-top: 1rem;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-question svg {
  transition: transform var(--transition-fast);
}

/* Form Styles */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
  font-family: var(--font-body);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-hsl), 0.15);
}

/* Footer styling */
footer.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 5rem 0 3rem;
  margin-top: 6rem;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.footer-col h4 {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

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

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  font-size: 0.875rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* Stats dashboard */
.stats-container {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .stats-container {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.stat-card {
  text-align: center;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
}

.stat-number {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--accent);
  font-family: var(--font-heading);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}