/* ============================================
   ECOEMS Website - Design System & Styles
   ============================================ */

/* Google Fonts are loaded via optimized link tags in head.php */

/* ============================================
   CSS Variables - Design Tokens
   ============================================ */
:root {
  /* Colors */
  --primary-purple: #8b5cf6;
  --primary-blue: #3b82f6;
  --primary-teal: #14b8a6;
  --accent-pink: #ec4899;
  --accent-orange: #f97316;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  --gradient-card: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
  --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);

  /* Background */
  --bg-dark: #0f0f23;
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-card-hover: rgba(255, 255, 255, 0.08);

  /* Text */
  --text-primary: #ffffff;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;

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

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.3);

  /* Typography */
  --font-body: 'Inter', sans-serif;
  --font-heading: 'Outfit', sans-serif;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(59, 130, 246, 0.15) 0%, transparent 50%);
  background-attachment: fixed;
}

/* ============================================
   Typography
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
}

/* Fix for Chrome deprecation warning:  */
section h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* ============================================
   Navigation Bar
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(15, 15, 35, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 1000;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: rgba(15, 15, 35, 0.98);
  box-shadow: var(--shadow-lg);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo span:not(.nav-logo-icon) {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-logo-icon {
  font-size: 1.8rem;
  filter: drop-shadow(0 2px 4px rgba(139, 92, 246, 0.4));
}

.nav-logo-img {
  height: 45px;
  width: auto;
  max-width: 150px;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(139, 92, 246, 0.5));
  transition: transform 0.3s ease, filter 0.3s ease;
}

.nav-logo:hover .nav-logo-img {
  transform: scale(1.05);
  filter: drop-shadow(0 4px 12px rgba(139, 92, 246, 0.7));
}

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

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: var(--spacing-xs) var(--spacing-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(139, 92, 246, 0.1);
}

.nav-link.active {
  color: var(--primary-purple);
  background: rgba(139, 92, 246, 0.15);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

/* Dropdown Menu */
.nav-item.has-dropdown {
  position: relative;
}

.nav-link.dropdown-toggle::after {
  content: '▼';
  font-size: 0.7rem;
  margin-left: 0.3rem;
  transition: transform 0.3s ease;
}

.nav-item.has-dropdown:hover .dropdown-toggle::after {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: rgba(15, 15, 35, 0.98);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  min-width: 220px;
  padding: var(--spacing-xs);
  margin-top: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-lg);
}

.nav-item.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu .nav-link {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

.dropdown-menu .nav-link:hover {
  background: rgba(139, 92, 246, 0.15);
  transform: translateX(5px);
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Responsive Navigation */
@media (max-width: 968px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(15, 15, 35, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: var(--spacing-md);
    gap: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-menu.active {
    max-height: 500px;
    opacity: 1;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-link {
    padding: var(--spacing-md);
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    margin-top: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0;
  }

  .nav-item.has-dropdown.active .dropdown-menu {
    max-height: 300px;
    padding: var(--spacing-xs);
    margin-top: var(--spacing-xs);
  }

  .nav-link.dropdown-toggle::after {
    position: absolute;
    right: var(--spacing-md);
  }
}

/* Add padding to body to account for fixed navbar */
body {
  padding-top: 70px;
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

section {
  padding: var(--spacing-2xl) 0;
  position: relative;
  z-index: 1;
  background: var(--bg-dark);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-hero);
  padding: var(--spacing-xl) var(--spacing-md);
  z-index: 0;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at center, transparent 0%, var(--bg-dark) 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  animation: fadeInUp 1s ease-out;
}

.hero h1 {
  background: linear-gradient(135deg, #ffffff 0%, #e0e7ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-md);
  text-shadow: 0 4px 20px rgba(255, 255, 255, 0.1);
}

.hero-subtitle {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  font-weight: 300;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-xl);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
  animation: pulse 2s ease-in-out infinite;
}

/* ============================================
   Cards & Grid
   ============================================ */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(139, 92, 246, 0.3);
}

.card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  display: inline-block;
  filter: drop-shadow(0 2px 8px rgba(139, 92, 246, 0.3));
}

.card h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.card p {
  color: var(--text-secondary);
  font-size: 1rem;
}

.card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.card-link h3 {
  text-decoration: none;
}

.card-link p {
  text-decoration: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-header h2 {
  background: linear-gradient(135deg, var(--primary-purple) 0%, var(--primary-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.2rem;
  color: var(--text-muted);
}

/* ============================================
   Timeline
   ============================================ */
.timeline {
  position: relative;
  max-width: 800px;
  margin: var(--spacing-xl) auto;
}

.timeline-item {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  border-left: 4px solid var(--primary-purple);
  transition: all 0.3s ease;
  position: relative;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  background: var(--gradient-primary);
  border-radius: 50%;
  border: 3px solid var(--bg-dark);
}

.timeline-item:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-md);
  border-left-color: var(--primary-blue);
}

.timeline-date {
  font-weight: 600;
  color: var(--primary-purple);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xs);
}

.timeline-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.timeline-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ============================================
   FAQ Accordion
   ============================================ */
.faq-container {
  max-width: 900px;
  margin: var(--spacing-xl) auto;
}

.faq-item {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(139, 92, 246, 0.3);
}

.faq-question {
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1.1rem;
  transition: all 0.3s ease;
  user-select: none;
}

.faq-question:hover {
  background: rgba(139, 92, 246, 0.1);
}

.faq-icon {
  font-size: 1.5rem;
  transition: transform 0.3s ease;
  color: var(--primary-purple);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 var(--spacing-lg);
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 var(--spacing-lg) var(--spacing-md);
}

.faq-answer p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

/* ============================================
   Badges & Labels
   ============================================ */
.badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--gradient-primary);
  color: white;
  margin-right: var(--spacing-xs);
  margin-bottom: var(--spacing-xs);
}

.badge-outline {
  background: transparent;
  border: 2px solid var(--primary-purple);
  color: var(--primary-purple);
}

/* ============================================
   Footer
   ============================================ */
footer {
  background: rgba(0, 0, 0, 0.3);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: var(--spacing-2xl);
}

footer p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

footer a {
  color: var(--primary-purple);
  text-decoration: none;
  transition: color 0.3s ease;
}

footer a:hover {
  color: var(--primary-blue);
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }

  50% {
    transform: scale(1.05);
    opacity: 0.9;
  }
}

.fade-in {
  animation: fadeInUp 0.8s ease-out;
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
  text-align: center;
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mt-1 {
  margin-top: var(--spacing-sm);
}

.mt-2 {
  margin-top: var(--spacing-md);
}

.mt-3 {
  margin-top: var(--spacing-lg);
}

.mt-4 {
  margin-top: var(--spacing-xl);
}

.mb-1 {
  margin-bottom: var(--spacing-sm);
}

.mb-2 {
  margin-bottom: var(--spacing-md);
}

.mb-3 {
  margin-bottom: var(--spacing-lg);
}

.mb-4 {
  margin-bottom: var(--spacing-xl);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
  :root {
    font-size: 14px;
  }

  .hero {
    min-height: 80vh;
    padding: var(--spacing-lg) var(--spacing-md);
  }

  section {
    padding: var(--spacing-xl) 0;
  }

  .grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .timeline-item {
    padding: var(--spacing-md);
  }

  .card {
    padding: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }

  .hero-badge {
    font-size: 0.8rem;
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}