/* ===== CSS Variables ===== */
:root {
  /* Colors - St. Clair College Branding */
  --color-primary: #78be20;      /* St. Clair green */
  --color-accent: #00b8ff;       /* Robotics tech cyan */
  --color-bg: #0c0d12;
  --color-surface: #14151a;
  --color-surface-hover: #1a1b22;
  --color-text: #f0f3f5;
  --color-text-muted: #c5cdd3;  /* Improved contrast 5.1:1 for WCAG AA */
  --color-border: rgba(0, 184, 255, 0.15);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 2.5rem;
  --spacing-3xl: 3rem;
  
  /* Typography */
  --font-body: 'Inter', sans-serif;
  --font-heading: 'Rajdhani', sans-serif;
  
  /* Effects */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --glow: 0 0 20px rgba(0, 184, 255, 0.3);
  
  /* Animation */
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Video Styles ===== */
.video-showcase {
  margin-top: 1rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.video-showcase video {
  width: 100%;
  height: auto;
  display: block;
  background: #000;
}

.video-caption {
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  background: var(--color-surface-hover);
}

.projects-demo-section {
  padding: 4rem 0;
  background: var(--color-surface);
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.demo-card {
  background: var(--color-bg);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.demo-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.demo-video-wrapper {
  position: relative;
  background: #000;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 12px 12px 0 0;
}

.demo-video-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.3s ease;
}

@media (max-width: 768px) {
  .demo-video-wrapper {
    aspect-ratio: 9 / 16;
    max-height: 70vh;
  }
  
  .demo-video-wrapper video {
    object-fit: cover;
  }
}

.demo-content {
  padding: 1.5rem;
}

.demo-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text);
  font-family: var(--font-heading);
}

.demo-description {
  color: var(--color-text-muted);
  line-height: 1.6;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(12, 13, 18, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
  font-size: 1.1rem;
  transition: var(--transition);
}

.nav-logo-img {
  width: 40px;
  height: 40px;
  filter: drop-shadow(0 0 8px var(--color-accent));
  transition: var(--transition);
}

.nav-logo:hover .nav-logo-img {
  filter: drop-shadow(0 0 16px var(--color-accent));
  transform: rotate(5deg);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-sm);
  list-style: none;
}

.nav-link {
  padding: 0.5rem 1.25rem;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 500;
  border-radius: 8px;
  transition: var(--transition);
  position: relative;
}

.nav-link:hover {
  background: var(--color-surface);
  color: var(--color-accent);
}

.nav-link-cta {
  background: var(--color-accent);
  color: #0c0d12 !important;
  font-weight: 600;
}

.nav-link-cta:hover {
  background: #00d4ff;
  box-shadow: var(--glow);
  transform: translateY(-2px);
  color: #0c0d12 !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 25px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: clamp(70vh, 85vh, 100vh);
  display: flex;
  align-items: center;
  padding: 6rem 0 var(--spacing-3xl);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(0, 184, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(0, 99, 65, 0.1) 0%, transparent 50%);
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
  animation: slideDown 0.6s ease;
}

.hero-social-proof {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: var(--spacing-lg);
  animation: slideUp 0.6s ease 0.25s backwards;
}

.member-avatars {
  display: flex;
  align-items: center;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  border: 2px solid var(--color-bg);
  margin-left: -10px;
}

.avatar:first-child {
  margin-left: 0;
}

.avatar-more {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-bg);
  margin-left: -10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
}

.social-proof-text {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin: 0;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  animation: slideUp 0.6s ease;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
  animation: slideUp 0.6s ease 0.1s backwards;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin-bottom: var(--spacing-lg);
  animation: slideUp 0.6s ease 0.2s backwards;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  animation: slideUp 0.6s ease 0.3s backwards;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  animation: slideUp 0.6s ease 0.4s backwards;
}

.stat {
  text-align: center;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: float 6s ease-in-out infinite;
}

.robot-card {
  position: relative;
  width: 400px;
  height: 400px;
  perspective: 1000px;
}

.robot-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.robot-card-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0, 184, 255, 0.03) 2px,
      rgba(0, 184, 255, 0.03) 4px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 2px,
      rgba(0, 184, 255, 0.03) 2px,
      rgba(0, 184, 255, 0.03) 4px
    );
  opacity: 0.5;
}

.robot-logo {
  width: 280px;
  height: 280px;
  filter: drop-shadow(0 0 40px rgba(0, 184, 255, 0.4));
  position: relative;
  z-index: 1;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 10px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: var(--font-body);
  font-size: 1rem;
}

.btn-primary {
  background: var(--color-accent);
  color: #0c0d12;
}

.btn-primary:hover {
  background: #00d4ff;
  box-shadow: var(--glow);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(0, 184, 255, 0.15);
  color: var(--color-text);
  border: 2px solid var(--color-accent);
  font-weight: 600;
}

.btn-secondary:hover {
  background: var(--color-accent);
  color: #0c0d12;
  border-color: var(--color-accent);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-accent);
}

.btn-outline:hover {
  background: var(--color-accent);
  color: #0c0d12;
}

.btn-large {
  padding: 1.125rem 2rem;
  font-size: 1.125rem;
}

.btn-large.btn-primary {
  flex-direction: column;
  gap: 0.25rem;
}

.btn-subtext {
  font-size: 0.8rem;
  font-weight: 400;
  opacity: 0.9;
}

/* ===== Button Focus Styles (Accessibility) ===== */
.btn:focus-visible,
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-outline:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.nav-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 8px;
}

/* ===== Features Section ===== */
.features,
.team-section {
  padding: var(--spacing-3xl) 0;
  background: var(--color-bg);
}

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

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent);
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-muted);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--spacing-lg);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: rgba(0, 184, 255, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  color: var(--color-accent);
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.feature-description {
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== Events Section ===== */
.events {
  padding: var(--spacing-3xl) 0;
  background: var(--color-bg);
}

.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.event-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  overflow: hidden;
  transition: var(--transition);
}

.event-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}

.event-image-wrapper {
  position: relative;
  width: 100%;
  height: 240px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(0, 99, 65, 0.2) 0%, rgba(0, 184, 255, 0.2) 100%);
}

.event-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.event-card:hover .event-image {
  transform: scale(1.1);
}

.event-date-badge {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: rgba(0, 184, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  padding: var(--spacing-sm);
  text-align: center;
  min-width: 60px;
  box-shadow: var(--shadow-md);
}

.event-month {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.5px;
}

.event-day {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
  margin-top: 2px;
}

.event-content {
  padding: var(--spacing-lg);
}

.event-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.event-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-accent);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

.event-meta svg {
  flex-shrink: 0;
}

.event-meta span {
  color: var(--color-text-muted);
}

.event-description {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-top: var(--spacing-md);
}

/* ===== Event Carousel ===== */
.event-carousel {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.carousel-track {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  touch-action: pan-y pinch-zoom;
}

.carousel-track .event-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.4s ease-in-out, transform 0.4s ease-in-out;
  pointer-events: none;
  cursor: pointer;
}

.carousel-track .event-image.active {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
}

.carousel-track .event-image.slide-out-left {
  transform: translateX(-30%);
  opacity: 0;
}

.carousel-track .event-image.slide-out-right {
  transform: translateX(30%);
  opacity: 0;
}

.carousel-track .event-image:hover {
  opacity: 0.9;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 184, 255, 0.95);
  border: none;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  z-index: 10;
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 184, 255, 0.4);
}

.carousel-btn:hover {
  background: var(--color-accent);
  transform: translateY(-50%) scale(1.15);
  box-shadow: 0 6px 20px rgba(0, 184, 255, 0.6);
}

.carousel-btn:active {
  transform: translateY(-50%) scale(0.98);
}

@media (max-width: 768px) {
  .carousel-btn {
    display: none;
  }
}

.carousel-btn-prev {
  left: var(--spacing-md);
}

.carousel-btn-next {
  right: var(--spacing-md);
}

.carousel-dots {
  position: absolute;
  bottom: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  padding: 0;
}

.carousel-dot:hover {
  background: rgba(255, 255, 255, 0.8);
  transform: scale(1.2);
}

.carousel-dot:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.carousel-dot.active {
  background: var(--color-accent);
  border-color: #fff;
  transform: scale(1.1);
}

.carousel-btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* Hide carousel controls for single images */
.event-carousel:has(.carousel-track img:only-child) .carousel-btn,
.event-carousel:has(.carousel-track img:only-child) .carousel-dots {
  display: none;
}

/* ===== Form Section ===== */
.form-section {
  padding: var(--spacing-3xl) 0;
  background: var(--color-bg);
}

.form-wrapper {
  max-width: 600px;
  margin: 0 auto;
}

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

.join-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--color-text);
}

.required {
  color: #ff4444;
}

.optional {
  color: var(--color-text-muted);
  font-weight: 400;
  font-size: 0.875rem;
}

.form-input {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 184, 255, 0.1);
}

.form-input:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.form-error {
  display: block;
  color: #ff4444;
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
  min-height: 20px;
}

.form-success {
  display: none;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: rgba(0, 184, 255, 0.1);
  border: 1px solid var(--color-accent);
  border-radius: 8px;
  color: var(--color-accent);
  margin-top: var(--spacing-lg);
}

.form-success.show {
  display: flex;
}

.form-success svg {
  flex-shrink: 0;
}

.form-success p {
  margin: 0;
  font-weight: 500;
}

.form-note {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding: var(--spacing-md);
  background: rgba(0, 184, 255, 0.05);
  border-radius: 8px;
  margin-bottom: var(--spacing-lg);
}

.form-note a {
  color: var(--color-accent);
  text-decoration: none;
}

.form-note a:hover {
  text-decoration: underline;
}

.social-connect {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.connect-text {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.connect-buttons {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Recent Highlights Section ===== */
.highlights {
  padding: var(--spacing-3xl) 0;
  background: var(--color-bg);
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.highlight-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--spacing-lg);
  transition: var(--transition);
}

.highlight-item:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.highlight-date {
  font-size: 0.875rem;
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-xs);
}

.highlight-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.highlight-description {
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ===== Why Join Section ===== */
.why-join {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, rgba(0, 99, 65, 0.05) 0%, rgba(0, 184, 255, 0.05) 100%);
}

.why-join-content {
  text-align: center;
}

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

.benefit-item {
  text-align: center;
  padding: var(--spacing-lg);
}

.benefit-icon {
  width: 64px;
  height: 64px;
  background: rgba(0, 184, 255, 0.1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--color-accent);
  transition: var(--transition);
}

.benefit-item:hover .benefit-icon {
  background: var(--color-accent);
  color: #0c0d12;
  transform: scale(1.1);
}

.benefit-item h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.benefit-item p {
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ===== CTA Section ===== */
.cta {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, rgba(0, 99, 65, 0.1) 0%, rgba(0, 184, 255, 0.1) 100%);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.cta-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.cta-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.cta-description {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xl);
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
  background: var(--color-bg);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-logo {
  width: 48px;
  height: 48px;
  margin-bottom: var(--spacing-sm);
  filter: drop-shadow(0 0 8px var(--color-accent));
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.footer-tagline {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.footer-title {
  font-family: var(--font-heading);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* ===== Animations ===== */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* ===== Accessibility - Reduced Motion Support ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .hero-badge,
  .hero-title,
  .hero-subtitle,
  .hero-buttons,
  .hero-visual {
    animation: none !important;
  }
  
  .badge-dot {
    animation: none !important;
  }
  
  .robot-card {
    animation: none !important;
  }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-menu {
    position: absolute;
    top: 100%;
    right: 0;
    flex-direction: column;
    align-items: flex-end;
    background: rgba(20, 21, 26, 0.98);
    backdrop-filter: blur(20px);
    width: 100%;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.3s ease, opacity 0.3s ease;
  }
  
  .nav-menu.active {
    max-height: 500px;
    opacity: 1;
  }
  
  .nav-menu li {
    width: auto;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .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);
  }
  
  .hero {
    min-height: 60vh;
    padding: 4rem 0 2rem;
  }
  
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .hero-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
  }
  
  .hero-subtitle {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
  }
  
  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-visual {
    display: none;
  }
  
  .robot-card {
    width: 300px;
    height: 300px;
  }
  
  .robot-logo {
    width: 200px;
    height: 200px;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .features,
  .why-join {
    display: none;
  }
  
  .events,
  .projects-demo-section,
  .achievements-section,
  .instagram-section {
    padding: 2.5rem 0;
  }
  
  .section-title {
    font-size: 2rem;
    margin-bottom: 1rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .feature-card {
    padding: 1.25rem;
  }
  
  .events-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .event-image-wrapper {
    height: 280px;
  }
  
  .demo-grid {
    gap: 1.5rem;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* ===== Page Header ===== */
.page-header {
  padding: 8rem 0 var(--spacing-3xl);
  text-align: center;
  background: linear-gradient(135deg, rgba(0, 99, 65, 0.05) 0%, rgba(0, 184, 255, 0.05) 100%);
}

.page-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-subtitle {
  font-size: 1.5rem;
  color: var(--color-text-muted);
}

/* ===== Mission Section ===== */
.mission-section {
  padding: var(--spacing-3xl) 0;
}

.mission-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.mission-description {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.mission-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--spacing-xl);
  text-align: center;
}

.mission-icon {
  width: 80px;
  height: 80px;
  background: rgba(0, 184, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--color-accent);
}

.mission-card h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.mission-card p {
  color: var(--color-text-muted);
}

/* ===== Values Section ===== */
.values-section {
  padding: var(--spacing-3xl) 0;
  background: var(--color-bg);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.value-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--spacing-lg);
  transition: var(--transition);
}

.value-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
}

.value-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: rgba(0, 184, 255, 0.2);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.value-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent);
}

.value-description {
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== Activities Section ===== */
.activities-section {
  padding: var(--spacing-3xl) 0;
}

.activities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.activity-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--spacing-lg);
  text-align: center;
  transition: var(--transition);
}

.activity-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}

.activity-icon {
  width: 72px;
  height: 72px;
  background: rgba(0, 184, 255, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--color-accent);
}

.activity-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.activity-card p {
  color: var(--color-text-muted);
  line-height: 1.6;
}

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

.team-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--spacing-lg);
  text-align: center;
  transition: var(--transition);
}

.team-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}

.team-photo {
  width: 160px;
  height: 160px;
  background: rgba(0, 184, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--color-accent);
  font-size: 4rem;
  border: 2px solid var(--color-border);
}

.team-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.team-role {
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.team-email {
  font-size: 0.875rem;
  margin-bottom: var(--spacing-sm);
}

.team-email a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: var(--transition);
}

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

.team-bio {
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

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

.team-link {
  width: 40px;
  height: 40px;
  background: rgba(0, 184, 255, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  text-decoration: none;
  transition: var(--transition);
}

.team-link:hover {
  background: var(--color-accent);
  color: #0c0d12;
  transform: translateY(-2px);
}

/* ===== Join Page ===== */
.join-hero {
  padding: 8rem 0 var(--spacing-3xl);
  text-align: center;
  background: linear-gradient(135deg, rgba(0, 99, 65, 0.1) 0%, rgba(0, 184, 255, 0.1) 100%);
}

.steps-section {
  padding: var(--spacing-3xl) 0;
}

.steps-grid {
  display: grid;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.step-card {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--spacing-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--spacing-lg);
  transition: var(--transition);
}

.step-card:hover {
  border-color: var(--color-accent);
  transform: translateX(8px);
}

.step-number {
  width: 80px;
  height: 80px;
  background: rgba(0, 184, 255, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
}

.step-content h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.step-content p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

.faq-section {
  padding: var(--spacing-3xl) 0;
  background: var(--color-bg);
}

.faq-list {
  max-width: 800px;
  margin: var(--spacing-xl) auto 0;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  margin-bottom: var(--spacing-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: var(--spacing-md);
  background: transparent;
  border: none;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-icon {
  transition: var(--transition);
  color: var(--color-accent);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-content {
  padding: 0 var(--spacing-md) var(--spacing-md);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== Lightbox Modal ===== */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.lightbox-image {
  max-width: 100%;
  max-height: 85vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
  color: var(--color-text);
  font-size: 1rem;
  text-align: center;
  padding: var(--spacing-sm);
  background: rgba(20, 21, 26, 0.8);
  border-radius: 8px;
  backdrop-filter: blur(10px);
}

.lightbox-close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  background: rgba(0, 184, 255, 0.2);
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  cursor: pointer;
  transition: var(--transition);
  z-index: 10001;
}

.lightbox-close:hover {
  background: var(--color-accent);
  color: #0c0d12;
  transform: rotate(90deg);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 184, 255, 0.2);
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  cursor: pointer;
  transition: var(--transition);
  z-index: 10001;
}

.lightbox-nav:hover {
  background: var(--color-accent);
  color: #0c0d12;
}

.lightbox-prev {
  left: var(--spacing-lg);
}

.lightbox-next {
  right: var(--spacing-lg);
}

.lightbox-nav:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

/* ===== Scroll Progress Bar ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
  z-index: 10000;
  transition: width 0.1s linear;
}

/* ===== Back to Top Button ===== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  color: #0c0d12;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 999;
  box-shadow: var(--shadow-lg);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: #00d4ff;
  box-shadow: var(--glow);
  transform: translateY(-4px);
}

.back-to-top:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.back-to-top svg {
  width: 24px;
  height: 24px;
}

@media (max-width: 768px) {
  .back-to-top {
    width: 44px;
    height: 44px;
    bottom: 1rem;
    right: 1rem;
  }
  
  .back-to-top svg {
    width: 20px;
    height: 20px;
  }
}

/* ===== Responsive Additions ===== */
@media (max-width: 768px) {
  .mission-content {
    grid-template-columns: 1fr;
  }
  
  .step-card {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .step-number {
    margin: 0 auto;
  }
  
  .lightbox-close,
  .lightbox-nav {
    width: 44px;
    height: 44px;
  }
  
  .lightbox-close {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
  }
  
  .lightbox-prev {
    left: var(--spacing-sm);
  }
  
  .lightbox-next {
    right: var(--spacing-sm);
  }
  
  .lightbox-image {
    max-height: 75vh;
  }
}

/* ===== Achievements Section ===== */
.achievements-section {
  padding: 4rem 0;
  background: var(--color-bg);
}

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.achievement-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  text-align: center;
  transition: var(--transition);
}

.achievement-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}

.achievement-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  line-height: 1;
}

.achievement-card h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.achievement-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
}

/* ===== Instagram Section ===== */
.instagram-section {
  padding: 4rem 0;
  background: var(--color-bg);
}

.instagram-cta {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

/* ===== Next Meeting Section ===== */
.next-meeting-section {
  padding: 2rem 0;
  background: var(--color-bg);
}

.meeting-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  transition: var(--transition);
}

.meeting-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}

.meeting-icon {
  font-size: 3rem;
  flex-shrink: 0;
}

.meeting-info {
  flex: 1;
}

.meeting-info h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  margin: 0 0 0.5rem 0;
}

.meeting-details {
  font-size: 1.125rem;
  color: var(--color-text);
  margin: 0 0 0.5rem 0;
}

.meeting-project {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 768px) {
  .meeting-card {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
  }
  
  .achievements-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

/* ===== Testimonials Section ===== */
.testimonials-section {
  padding: 4rem 0;
  background: var(--color-surface);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.testimonial-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 2rem;
  position: relative;
  transition: var(--transition);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}

.testimonial-quote {
  font-size: 4rem;
  font-family: Georgia, serif;
  color: var(--color-accent);
  line-height: 0.5;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.testimonial-text {
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.author-info h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 0.25rem 0;
}

.author-info p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
}

@media (max-width: 768px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}