/* ============================================================
   PlanTech #17106 — Portfolio Website
   Design System & Component Styles
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&display=swap');

/* --- Design Tokens --- */
:root {
  /* Brand Colors */
  --green-primary: #1B8C2E;
  --green-dark: #0D6B1E;
  --green-darker: #064D14;
  --green-light: #2DB34A;
  --green-pale: #E8F5E9;
  --green-glow: rgba(27, 140, 46, 0.18);
  --green-glow-strong: rgba(27, 140, 46, 0.28);

  --gray-primary: #808080;
  --gray-dark: #333333;
  --gray-medium: #666666;
  --gray-light: #999999;
  --gray-lighter: #CCCCCC;

  /* Backgrounds */
  --bg-dark: #0A0F0A;
  --bg-dark-secondary: #111811;
  --bg-dark-card: rgba(18, 25, 18, 0.72);
  --bg-dark-card-hover: rgba(21, 30, 21, 0.78);
  --bg-light: #F5F7F5;
  --bg-white: #FFFFFF;

  /* Text */
  --text-light: #FFFFFF;
  --text-light-secondary: rgba(255, 255, 255, 0.7);
  --text-light-muted: rgba(255, 255, 255, 0.5);
  --text-dark: #1A1A1A;
  --text-dark-secondary: #555555;

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

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-round: 50%;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-slower: 0.8s ease;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 20px var(--green-glow);
  --shadow-glow-strong: 0 0 40px var(--green-glow-strong);

  /* Layout */
  --max-width: 1200px;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-light);
  background-color: var(--bg-dark);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* Section base */
section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.section-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--green-light), var(--green-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-light-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--green-light);
  margin-bottom: var(--space-md);
  position: relative;
  padding-bottom: var(--space-sm);
}

.section-label::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background: var(--green-primary);
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--transition-base);
  padding: 0 var(--space-xl);
}

.navbar.scrolled {
  background: rgba(10, 15, 10, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(27, 140, 46, 0.15);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-content {
  max-width: var(--max-width);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  z-index: 1001;
}

.nav-logo img {
  height: 44px;
  width: auto;
  background-color: #FFFFFF;
  padding: 4px;
  border-radius: 8px;
}

.nav-logo span {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-light);
}

.nav-logo .team-number {
  color: var(--green-light);
  font-weight: 600;
  font-size: 0.85rem;
  opacity: 0.8;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-light-secondary);
  transition: color var(--transition-fast);
  position: relative;
  padding: var(--space-xs) 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--green-primary);
  transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--green-light);
}

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

.nav-cta {
  background: linear-gradient(135deg, var(--green-primary), var(--green-dark));
  color: var(--text-light) !important;
  padding: var(--space-sm) var(--space-lg) !important;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
  transition: all var(--transition-base) !important;
  box-shadow: var(--shadow-glow);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-strong);
}

.nav-cta::after {
  display: none !important;
}

/* Mobile Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
  padding: var(--space-sm);
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-light);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(180deg, #0B100C 0%, #101811 100%);
  background-size: 44px 44px, 44px 44px, auto;
  padding-top: var(--nav-height);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(10, 15, 10, 0.12), rgba(10, 15, 10, 0.72));
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 900px;
  padding: 0 var(--space-xl);
}

.hero-logo {
  width: 140px;
  height: 140px;
  margin: 0 auto var(--space-2xl);
  animation: float 6s ease-in-out infinite;
  filter: drop-shadow(0 0 30px var(--green-glow));
}

.hero-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background-color: #FFFFFF;
  padding: 12px;
  border-radius: 20px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(27, 140, 46, 0.15);
  border: 1px solid rgba(27, 140, 46, 0.3);
  padding: var(--space-sm) var(--space-lg);
  border-radius: 50px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--green-light);
  margin-bottom: var(--space-xl);
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--green-light);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  letter-spacing: 0;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--green-light) 0%, var(--green-primary) 50%, #4ADE80 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--text-light-secondary);
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-3xl);
  margin-bottom: var(--space-2xl);
}

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

.hero-stat .number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--green-light);
  line-height: 1;
}

.hero-stat .label {
  font-size: 0.85rem;
  color: var(--text-light-muted);
  margin-top: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: linear-gradient(135deg, var(--green-primary), var(--green-dark));
  color: var(--text-light);
  padding: var(--space-md) var(--space-2xl);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-glow);
  border: none;
  cursor: pointer;
}

.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-strong);
}

.hero-cta svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-base);
}

.hero-cta:hover svg {
  transform: translateX(4px);
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  animation: bounce 2s infinite;
}

.scroll-indicator .mouse {
  width: 26px;
  height: 40px;
  border: 2px solid var(--text-light-muted);
  border-radius: 14px;
  position: relative;
}

.scroll-indicator .mouse .wheel {
  width: 4px;
  height: 8px;
  background: var(--green-light);
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll-wheel 2s infinite;
}

/* --- About Section --- */
.about {
  background: var(--bg-dark-secondary);
  position: relative;
}

.about::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green-primary), transparent);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-text h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: var(--space-md);
}

.about-text p {
  color: var(--text-light-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.highlight-card {
  background: var(--bg-dark-card);
  border: 1px solid rgba(27, 140, 46, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.highlight-card:hover {
  background: var(--bg-dark-card-hover);
  border-color: rgba(27, 140, 46, 0.18);
}

.highlight-card .icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.highlight-card h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: var(--space-xs);
}

.highlight-card p {
  font-size: 0.9rem;
  color: var(--text-light-muted);
}

/* --- Seasons Timeline --- */
.seasons {
  background: var(--bg-dark);
  position: relative;
}

.timeline {
  position: relative;
  padding: var(--space-xl) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: linear-gradient(
    180deg,
    transparent,
    var(--green-primary) 10%,
    var(--green-primary) 90%,
    transparent
  );
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 0 var(--space-3xl) var(--space-3xl);
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
  padding-right: var(--space-3xl);
  padding-left: var(--space-xl);
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
  padding-left: var(--space-3xl);
  padding-right: var(--space-xl);
}

.timeline-dot {
  position: absolute;
  top: 0;
  width: 18px;
  height: 18px;
  background: var(--green-primary);
  border: 3px solid var(--bg-dark);
  border-radius: 50%;
  z-index: 2;
  box-shadow: 0 0 0 4px rgba(27, 140, 46, 0.2), var(--shadow-glow);
  transition: all var(--transition-base);
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -9px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -9px;
}

.timeline-item:hover .timeline-dot {
  box-shadow: 0 0 0 4px rgba(27, 140, 46, 0.2), var(--shadow-glow);
}

.timeline-card {
  background: var(--bg-dark-card);
  border: 1px solid rgba(27, 140, 46, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-base);
  text-align: left;
}

.timeline-card:hover {
  background: var(--bg-dark-card-hover);
  border-color: rgba(27, 140, 46, 0.18);
}

.timeline-card.current {
  border-color: rgba(27, 140, 46, 0.4);
  box-shadow: var(--shadow-glow);
}

.timeline-year {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--green-light);
  letter-spacing: 0;
  margin-bottom: var(--space-sm);
}

.timeline-card h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: var(--space-sm);
}

.timeline-card .badge {
  display: inline-block;
  background: rgba(27, 140, 46, 0.15);
  color: var(--green-light);
  padding: 2px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.timeline-card p {
  font-size: 0.95rem;
  color: var(--text-light-secondary);
  line-height: 1.7;
}

/* --- Achievements --- */
.achievements {
  background: var(--bg-dark-secondary);
  position: relative;
}

.achievements::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green-primary), transparent);
}

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

.achievement-card {
  background: var(--bg-dark-card);
  border: 1px solid rgba(27, 140, 46, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.achievement-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--green-primary), var(--green-light));
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.achievement-card:hover::before {
  transform: scaleX(0);
}

.achievement-card:hover {
  background: var(--bg-dark-card-hover);
  border-color: rgba(27, 140, 46, 0.18);
}

.achievement-icon {
  font-size: 3rem;
  margin-bottom: var(--space-lg);
  display: block;
}

.achievement-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: var(--space-sm);
}

.achievement-card .season-tag {
  font-size: 0.8rem;
  color: var(--green-light);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.achievement-card p {
  font-size: 0.9rem;
  color: var(--text-light-secondary);
  line-height: 1.6;
}

/* --- Stats Section --- */
.stats {
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.stat-card {
  background: var(--bg-dark-card);
  border: 1px solid rgba(27, 140, 46, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
}

.stat-card:hover {
  border-color: rgba(27, 140, 46, 0.18);
}

.stat-card .stat-value {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--green-light), var(--green-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat-card .stat-label {
  font-size: 0.9rem;
  color: var(--text-light-secondary);
  font-weight: 500;
}

.stat-card .stat-detail {
  font-size: 0.8rem;
  color: var(--text-light-muted);
  margin-top: var(--space-xs);
}

/* --- Team Members --- */
.team {
  background: var(--bg-dark-secondary);
  position: relative;
}

.team::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green-primary), transparent);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-xl);
}

.team-group + .team-group {
  margin-top: var(--space-3xl);
}

.team-group-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: var(--space-lg);
  text-align: center;
}

.mentor-grid {
  display: grid;
  grid-template-columns: minmax(240px, 320px);
  justify-content: center;
}

.team-card {
  background: var(--bg-dark-card);
  border: 1px solid rgba(27, 140, 46, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  text-align: center;
}

.team-card:hover {
  border-color: rgba(27, 140, 46, 0.18);
}

.team-card-image {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.team-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.team-card:hover .team-card-image img {
  transform: none;
}

.team-card-image .placeholder-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green-primary), var(--green-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-light);
}

.team-card-info {
  padding: var(--space-xl);
}

.team-card-info h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: var(--space-xs);
}

.team-card-info .role {
  font-size: 0.85rem;
  color: var(--green-light);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.team-card-info p {
  font-size: 0.85rem;
  color: var(--text-light-muted);
  line-height: 1.6;
}

/* --- Footer --- */
.footer {
  background: var(--bg-dark);
  border-top: 1px solid rgba(27, 140, 46, 0.1);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

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

.footer-brand .footer-logo img {
  height: 40px;
  background-color: #FFFFFF;
  padding: 4px;
  border-radius: 6px;
}

.footer-brand .footer-logo span {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
}

.footer-brand p {
  color: var(--text-light-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 350px;
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: var(--space-lg);
}

.footer-col a {
  display: block;
  color: var(--text-light-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--green-light);
}

.footer-contact-text {
  color: var(--text-light-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  color: var(--text-light-muted);
  font-size: 0.85rem;
}

.social-links {
  display: flex;
  gap: var(--space-md);
}

.social-links a {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light-muted);
  transition: all var(--transition-base);
}

.social-links a:hover {
  background: var(--green-primary);
  color: var(--text-light);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.social-links a svg {
  width: 18px;
  height: 18px;
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger delays for grid items */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }
.stagger-7 { transition-delay: 0.7s; }
.stagger-8 { transition-delay: 0.8s; }
.stagger-9 { transition-delay: 0.9s; }
.stagger-10 { transition-delay: 1.0s; }

/* --- Keyframe Animations --- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-8px); }
  60% { transform: translateX(-50%) translateY(-4px); }
}

@keyframes scroll-wheel {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 5px var(--green-glow); }
  50% { box-shadow: 0 0 20px var(--green-glow), 0 0 40px rgba(27, 140, 46, 0.2); }
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }

  .hero-stats {
    gap: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .hamburger {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(10, 15, 10, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-xl);
    padding: var(--space-2xl);
    transition: right var(--transition-base);
    border-left: 1px solid rgba(27, 140, 46, 0.15);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links a {
    font-size: 1.1rem;
  }

  /* Timeline mobile layout */
  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    width: 100%;
    left: 0 !important;
    text-align: left !important;
    padding-left: 50px !important;
    padding-right: var(--space-md) !important;
  }

  .timeline-dot {
    left: 11px !important;
    right: auto !important;
  }

  .hero h1 {
    font-size: clamp(2.2rem, 8vw, 3.5rem);
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  .team-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }

  .achievements-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  section {
    padding: var(--space-4xl) 0;
  }
}

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

  .hero-logo {
    width: 100px;
    height: 100px;
  }

  .about-highlights {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .team-grid {
    grid-template-columns: 1fr;
  }
}