/* ============================================
   ZYRIX - Main Stylesheet
   Ingenier\u00eda del Futuro en STEM Racing
   ============================================ */

/* ----- CSS Custom Properties ----- */
:root {
  --cyan: #00B4D8;
  --cyan-dark: #0096b5;
  --cyan-light: #48d1e8;
  --cyan-glow: rgba(0, 180, 216, 0.3);
  --cyan-glow-strong: rgba(0, 180, 216, 0.6);
  --gray: #6B6B6B;
  --gray-light: #8a8a8a;
  --gray-dark: #4a4a4a;
  --black: #0A0A0A;
  --black-2: #111111;
  --black-3: #1a1a1a;
  --white: #FFFFFF;
  --white-dim: rgba(255, 255, 255, 0.7);
  --glass-bg: rgba(10, 10, 10, 0.6);
  --glass-border: rgba(0, 180, 216, 0.15);
  --glass-blur: 20px;
  --font-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-cyan: 0 0 20px rgba(0, 180, 216, 0.3);
  --shadow-cyan-strong: 0 0 40px rgba(0, 180, 216, 0.5);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background-color: var(--black);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
}

a, button, .btn, input, textarea, select, [role="button"], .gallery-filter, .lightbox-close, .lightbox-prev, .lightbox-next, .navbar-toggle, .team-card, .gallery-item, .sponsor-card, .engineering-card {
  cursor: none;
}

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

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

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

ul { list-style: none; }

::selection {
  background: var(--cyan);
  color: var(--black);
}

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--black);
}

::-webkit-scrollbar-thumb {
  background: var(--cyan);
  border-radius: 3px;
}

/* ----- Custom Cursor ----- */
.cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
  mix-blend-mode: difference;
}

.cursor-ring {
  position: fixed;
  width: 40px;
  height: 40px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99998;
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s, border-color 0.3s;
  mix-blend-mode: difference;
}

.cursor-ring.hover {
  width: 60px;
  height: 60px;
  border-color: var(--cyan-light);
  background: rgba(0, 180, 216, 0.1);
}

/* ----- Loading Screen ----- */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--black);
  z-index: 100000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-logo {
  font-family: var(--font-mono);
  font-size: 4rem;
  font-weight: 900;
  letter-spacing: 0.3em;
  color: var(--cyan);
  text-shadow: 0 0 40px var(--cyan-glow), 0 0 80px var(--cyan-glow);
  animation: loadingPulse 1.5s ease-in-out infinite;
  margin-bottom: 2rem;
}

.loading-bar-container {
  width: 300px;
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.loading-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--cyan-light), var(--cyan));
  border-radius: 2px;
  animation: loadingProgress 2.5s ease-in-out forwards;
}

.loading-text {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--white-dim);
  letter-spacing: 0.15em;
  animation: loadingText 2s ease-in-out infinite;
}

.loading-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gray);
  margin-top: 0.5rem;
  letter-spacing: 0.1em;
}

.loading-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(0, 180, 216, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 180, 216, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.loading-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
}

.loading-particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--cyan);
  border-radius: 50%;
  animation: particleFloat 3s ease-in-out infinite;
}

/* ----- Navbar ----- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.2rem 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 1000;
  transition: var(--transition-medium);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 180, 216, 0.1);
  padding: 0.8rem 4rem;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

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

.navbar-logo-text {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.15em;
}

.navbar-logo-text span {
  color: var(--cyan);
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.navbar-links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--white-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  position: relative;
  padding: 0.3rem 0;
  transition: var(--transition-fast);
}

.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--cyan);
  transition: var(--transition-medium);
  box-shadow: 0 0 10px var(--cyan-glow);
}

.navbar-links a:hover {
  color: var(--cyan);
}

.navbar-links a:hover::after {
  width: 100%;
}

.navbar-links a.active {
  color: var(--cyan);
}

.navbar-links a.active::after {
  width: 100%;
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
  z-index: 1001;
}

.navbar-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition-medium);
  transform-origin: center;
}

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

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

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

/* ----- Hero Section ----- */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--black);
}

.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(0, 180, 216, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 180, 216, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 2;
  perspective: 1000px;
  animation: gridMove 20s linear infinite;
}

.hero-gradient {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0, 180, 216, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(0, 180, 216, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(0, 180, 216, 0.1) 0%, transparent 40%);
  z-index: 3;
}

.hero-content {
  position: relative;
  z-index: 4;
  text-align: center;
  padding: 2rem;
  max-width: 1200px;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--cyan);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  padding: 0.5rem 1.5rem;
  border: 1px solid rgba(0, 180, 216, 0.3);
  border-radius: 30px;
  background: rgba(0, 180, 216, 0.05);
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease 0.5s both;
}

.hero-title {
  font-family: var(--font-mono);
  font-size: clamp(3.5rem, 10vw, 8rem);
  font-weight: 900;
  line-height: 1;
  color: var(--white);
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease 0.8s both;
  position: relative;
}

.hero-title span {
  background: linear-gradient(135deg, var(--white), var(--cyan), var(--cyan-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 30px rgba(0, 180, 216, 0.3));
}

.hero-title .hero-z {
  color: var(--cyan);
  -webkit-text-fill-color: var(--cyan);
  background: none;
  filter: drop-shadow(0 0 40px var(--cyan-glow));
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--white-dim);
  letter-spacing: 0.25em;
  margin-bottom: 3rem;
  animation: fadeInUp 1s ease 1.1s both;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease 1.4s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.9rem 2.2rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: none;
  border-radius: 4px;
  cursor: none;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--cyan);
  color: var(--black);
  box-shadow: 0 0 30px rgba(0, 180, 216, 0.3);
}

.btn-primary:hover {
  background: var(--cyan-light);
  box-shadow: 0 0 50px rgba(0, 180, 216, 0.5);
  transform: translateY(-2px);
  color: var(--black);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 30px rgba(0, 180, 216, 0.2);
  transform: translateY(-2px);
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

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

.hero-scroll-indicator {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  animation: fadeInUp 1s ease 2s both;
}

.hero-scroll-indicator span {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--gray);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

/* ----- Hero Car Image ----- */
.hero-car-container {
  position: absolute;
  bottom: 0;
  right: 5%;
  width: 45%;
  height: 60%;
  z-index: 3;
  perspective: 1000px;
}

.hero-car {
  width: 100%;
  height: 100%;
  object-fit: contain;
  animation: carFloat 6s ease-in-out infinite;
  filter: drop-shadow(0 0 40px rgba(0, 180, 216, 0.2));
}

/* ----- Section Styles ----- */
.section {
  position: relative;
  padding: 8rem 4rem;
  overflow: hidden;
}

.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--cyan);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  position: relative;
}

.section-label::before,
.section-label::after {
  content: '';
  display: inline-block;
  width: 30px;
  height: 1px;
  background: var(--cyan);
  vertical-align: middle;
  margin: 0 1rem;
}

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.section-title span {
  background: linear-gradient(135deg, var(--cyan), var(--cyan-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--white-dim);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ----- Stats Section ----- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  padding: 5rem 4rem;
  background: linear-gradient(180deg, var(--black), var(--black-2), var(--black));
  position: relative;
}

.stats::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.stats::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.stat-item {
  text-align: center;
  padding: 2rem;
  position: relative;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 900;
  color: var(--cyan);
  margin-bottom: 0.5rem;
  text-shadow: 0 0 20px rgba(0, 180, 216, 0.3);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gray);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.stat-plus {
  font-size: 1.5rem;
  color: var(--cyan);
  vertical-align: super;
}

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

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

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.about-content h3 {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--white);
}

.about-content p {
  color: var(--white-dim);
  line-height: 1.9;
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.about-image {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}

.about-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 180, 216, 0.1), transparent);
  border-radius: 8px;
}

.about-image-glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 180, 216, 0.1), transparent 50%);
  animation: glowRotate 10s linear infinite;
}

/* ----- Timeline ----- */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 4rem auto 0;
  padding: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, var(--cyan), transparent);
  top: 0;
}

.timeline-item {
  display: flex;
  justify-content: flex-start;
  padding: 1.5rem 0;
  position: relative;
}

.timeline-item:nth-child(even) {
  justify-content: flex-end;
}

.timeline-content {
  width: 45%;
  padding: 1.5rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  position: relative;
  transition: var(--transition-medium);
}

.timeline-content:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 30px rgba(0, 180, 216, 0.1);
  transform: translateY(-3px);
}

.timeline-content::before {
  content: '';
  position: absolute;
  top: 50%;
  width: 12px;
  height: 12px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--cyan-glow);
}

.timeline-item:nth-child(odd) .timeline-content::before {
  right: -8.5%;
}

.timeline-item:nth-child(even) .timeline-content::before {
  left: -8.5%;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--cyan);
  letter-spacing: 0.15em;
  margin-bottom: 0.5rem;
}

.timeline-content h4 {
  font-family: var(--font-mono);
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--white);
}

.timeline-content p {
  font-size: 0.85rem;
  color: var(--white-dim);
  line-height: 1.6;
}

/* ----- Team Section ----- */
.team {
  background: var(--black-2);
  position: relative;
}

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

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.team-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  text-align: center;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
  cursor: none;
}

.team-card:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 40px rgba(0, 180, 216, 0.1);
  transform: translateY(-8px);
}

.team-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 180, 216, 0.05), transparent);
  transition: var(--transition-slow);
}

.team-card:hover::before {
  left: 100%;
}

.team-card-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  border: 2px solid var(--glass-border);
  overflow: hidden;
  position: relative;
  transition: var(--transition-medium);
}

.team-card:hover .team-card-avatar {
  border-color: var(--cyan);
  box-shadow: 0 0 30px rgba(0, 180, 216, 0.2);
}

.team-card-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-card-avatar .avatar-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--black-3), var(--gray-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--cyan);
}

.team-card-role {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--cyan);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  border: 1px solid rgba(0, 180, 216, 0.2);
  border-radius: 20px;
  margin-bottom: 1rem;
  background: rgba(0, 180, 216, 0.05);
}

.team-card-name {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.team-card-desc {
  font-size: 0.85rem;
  color: var(--white-dim);
  line-height: 1.6;
}

.team-card-social {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.team-card-social a {
  width: 36px;
  height: 36px;
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--gray);
  transition: var(--transition-fast);
}

.team-card-social a:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 20px rgba(0, 180, 216, 0.2);
}

/* ----- Engineering Section ----- */
.engineering {
  background: var(--black);
  position: relative;
}

.engineering::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.engineering-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.engineering-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  text-align: center;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.engineering-card:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 40px rgba(0, 180, 216, 0.1);
  transform: translateY(-5px);
}

.engineering-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.5rem;
  background: rgba(0, 180, 216, 0.1);
  border: 1px solid rgba(0, 180, 216, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--cyan);
  transition: var(--transition-medium);
}

.engineering-card:hover .engineering-icon {
  background: rgba(0, 180, 216, 0.2);
  box-shadow: 0 0 30px rgba(0, 180, 216, 0.2);
}

.engineering-card h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  margin-bottom: 1rem;
  color: var(--white);
}

.engineering-card p {
  font-size: 0.85rem;
  color: var(--white-dim);
  line-height: 1.7;
}

/* ----- Engineering Diagram ----- */
.engineering-diagram {
  max-width: 900px;
  margin: 4rem auto 0;
  padding: 3rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  position: relative;
  overflow: hidden;
}

.engineering-diagram svg {
  width: 100%;
  height: auto;
}

.diagram-label {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
  padding: 0.3rem 0.6rem;
  border: 1px solid rgba(0, 180, 216, 0.2);
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
}

/* ----- Gallery Section ----- */
.gallery {
  background: var(--black-2);
  position: relative;
}

.gallery::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.gallery-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.gallery-filter {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--white-dim);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.6rem 1.5rem;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 30px;
  cursor: none;
  transition: var(--transition-medium);
}

.gallery-filter:hover,
.gallery-filter.active {
  background: var(--cyan);
  color: var(--black);
  border-color: var(--cyan);
  box-shadow: 0 0 20px rgba(0, 180, 216, 0.3);
}

.gallery-masonry {
  columns: 3;
  column-gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 1.5rem;
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  cursor: none;
  transition: var(--transition-medium);
}

.gallery-item:hover {
  transform: scale(1.02);
}

.gallery-item img {
  width: 100%;
  display: block;
  border-radius: 8px;
  transition: var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  opacity: 0;
  transition: var(--transition-medium);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay h4 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--white);
  margin-bottom: 0.3rem;
}

.gallery-overlay span {
  font-size: 0.75rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
}

/* ----- Lightbox ----- */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-medium);
  cursor: none;
}

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

.lightbox img {
  max-width: 90%;
  max-height: 90%;
  border-radius: 8px;
  box-shadow: 0 0 60px rgba(0, 180, 216, 0.2);
  transform: scale(0.8);
  transition: var(--transition-slow);
}

.lightbox.active img {
  transform: scale(1);
}

.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  background: none;
  border: none;
  color: var(--white);
  font-size: 2rem;
  cursor: none;
  transition: var(--transition-fast);
  z-index: 10001;
}

.lightbox-close:hover {
  color: var(--cyan);
  transform: rotate(90deg);
}

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--white);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: none;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-prev:hover,
.lightbox-next:hover {
  background: var(--cyan);
  color: var(--black);
  border-color: var(--cyan);
}

.lightbox-prev { left: 2rem; }
.lightbox-next { right: 2rem; }

/* ----- Sponsors Section ----- */
.sponsors {
  background: var(--black);
  position: relative;
  padding: 6rem 4rem;
}

.sponsors::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.sponsors::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.sponsors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.sponsor-card {
  height: 200px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
  cursor: none;
}

.sponsor-card:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 40px rgba(0, 180, 216, 0.1);
  transform: translateY(-5px);
}

.sponsor-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(transparent, rgba(0, 180, 216, 0.05), transparent, rgba(0, 180, 216, 0.05), transparent);
  animation: sponsorRotate 6s linear infinite;
  opacity: 0;
  transition: var(--transition-medium);
}

.sponsor-card:hover::before {
  opacity: 1;
}

.sponsor-icon {
  width: 50px;
  height: 50px;
  background: rgba(0, 180, 216, 0.1);
  border: 1px solid rgba(0, 180, 216, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
  font-size: 1.5rem;
}

.sponsor-card h4 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--white-dim);
  letter-spacing: 0.1em;
}

.sponsor-card p {
  font-size: 0.75rem;
  color: var(--gray);
  text-align: center;
  padding: 0 1rem;
}

.sponsor-card.featured {
  grid-column: 1 / -1;
  height: 250px;
  border-style: dashed;
  border-color: rgba(0, 180, 216, 0.3);
}

.sponsor-card.featured h3 {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.sponsor-card.featured .btn {
  margin-top: 0.5rem;
}

/* ----- Contact Section ----- */
.contact {
  background: var(--black-2);
  position: relative;
  padding: 8rem 4rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1200px;
  margin: 0 auto;
}

.contact-info h3 {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--white);
}

.contact-info p {
  color: var(--white-dim);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  color: var(--white-dim);
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  background: rgba(0, 180, 216, 0.1);
  border: 1px solid rgba(0, 180, 216, 0.2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-social {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.contact-social a {
  width: 44px;
  height: 44px;
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray);
  font-size: 1.1rem;
  transition: var(--transition-fast);
}

.contact-social a:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 20px rgba(0, 180, 216, 0.2);
  transform: translateY(-3px);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  position: relative;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem 1.2rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--white);
  font-family: var(--font-primary);
  font-size: 0.9rem;
  transition: var(--transition-medium);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 20px rgba(0, 180, 216, 0.1);
  background: rgba(0, 180, 216, 0.03);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-group label {
  position: absolute;
  top: -0.6rem;
  left: 1rem;
  padding: 0 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--gray);
  letter-spacing: 0.1em;
  background: var(--black-2);
  text-transform: uppercase;
}

.form-group input:focus + label,
.form-group textarea:focus + label {
  color: var(--cyan);
}

.contact-form .btn {
  align-self: flex-start;
}

/* ----- Footer ----- */
.footer {
  background: var(--black);
  padding: 4rem 4rem 2rem;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-brand h3 {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-brand h3 span {
  color: var(--cyan);
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--gray);
  line-height: 1.7;
  max-width: 300px;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--white);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: var(--gray);
  margin-bottom: 0.7rem;
  transition: var(--transition-fast);
}

.footer-col a:hover {
  color: var(--cyan);
  padding-left: 5px;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.75rem;
  color: var(--gray);
  font-family: var(--font-mono);
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom-links a {
  font-size: 0.7rem;
  color: var(--gray);
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
}

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

/* ----- Page Header ----- */
.page-header {
  position: relative;
  width: 100%;
  height: 50vh;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--black);
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 50% 50%, rgba(0, 180, 216, 0.1), transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(0, 180, 216, 0.05), transparent 40%);
  z-index: 2;
}

.page-header-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(0, 180, 216, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 180, 216, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: 1;
}

.page-header-content {
  position: relative;
  z-index: 3;
  text-align: center;
}

.page-header-content h1 {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  color: var(--white);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.page-header-content h1 span {
  color: var(--cyan);
}

.page-header-content p {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--white-dim);
  letter-spacing: 0.2em;
}

/* ----- Reveal Animations ----- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ----- Keyframes ----- */
@keyframes loadingPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

@keyframes loadingProgress {
  0% { width: 0%; }
  50% { width: 70%; }
  100% { width: 100%; }
}

@keyframes loadingText {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@keyframes particleFloat {
  0%, 100% {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
  50% {
    transform: translateY(-20px) scale(1.5);
    opacity: 0.5;
  }
}

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

@keyframes gridMove {
  0% { transform: translateY(0); }
  100% { transform: translateY(60px); }
}

@keyframes scrollLine {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.3; transform: scaleY(0.5); }
}

@keyframes carFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(0.5deg); }
}

@keyframes glowRotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes sponsorRotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(0, 180, 216, 0.3); }
  50% { box-shadow: 0 0 40px rgba(0, 180, 216, 0.5); }
}

@keyframes borderGlow {
  0%, 100% { border-color: rgba(0, 180, 216, 0.2); }
  50% { border-color: rgba(0, 180, 216, 0.5); }
}

/* ----- Responsive Design ----- */
@media (max-width: 1200px) {
  .hero-car-container {
    width: 40%;
  }

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

  .gallery-masonry {
    columns: 2;
  }

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

@media (max-width: 992px) {
  .section {
    padding: 6rem 2rem;
  }

  .stats {
    padding: 3rem 2rem;
    grid-template-columns: repeat(2, 1fr);
  }

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

  .about-image {
    order: -1;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-content {
    width: calc(100% - 50px);
    margin-left: 50px;
  }

  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) {
    justify-content: flex-start;
  }

  .timeline-item:nth-child(odd) .timeline-content::before,
  .timeline-item:nth-child(even) .timeline-content::before {
    left: -8.5%;
  }

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

  .hero-car-container {
    display: none;
  }

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

@media (max-width: 768px) {
  .navbar {
    padding: 1rem 1.5rem;
  }

  .navbar.scrolled {
    padding: 0.7rem 1.5rem;
  }

  .navbar-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 350px;
    height: 100vh;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 2.5rem;
    transition: var(--transition-medium);
    border-left: 1px solid rgba(0, 180, 216, 0.1);
  }

  .navbar-links.active {
    right: 0;
  }

  .navbar-links a {
    font-size: 0.85rem;
  }

  .navbar-toggle {
    display: flex;
  }

  .section {
    padding: 4rem 1.5rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
    padding: 3rem 1.5rem;
  }

  .stat-number {
    font-size: 2rem;
  }

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

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

  .gallery-masonry {
    columns: 1;
  }

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

  .contact {
    padding: 4rem 1.5rem;
  }

  .footer {
    padding: 3rem 1.5rem 1.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .page-header {
    height: 40vh;
    min-height: 300px;
  }

  .cursor-dot,
  .cursor-ring {
    display: none;
  }

  body {
    cursor: auto;
  }

  .btn {
    cursor: pointer;
  }

  .sponsor-card,
  .team-card,
  .gallery-item,
  .gallery-filter,
  .lightbox,
  .lightbox-close,
  .lightbox-prev,
  .lightbox-next {
    cursor: pointer;
  }

  .sponsor-card.featured {
    height: auto;
    padding: 3rem 2rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .loading-logo {
    font-size: 2.5rem;
  }

  .loading-bar-container {
    width: 200px;
  }

  .section-label::before,
  .section-label::after {
    width: 15px;
  }
}