/* ============================================
   CarbonFibreCraft - Premium Carbon Fibre Manufacturing
   Author: CarbonFibreCraft
   ============================================ */

/* === CSS Variables === */
:root {
  --primary: #0a0a0a;
  --secondary: #1a1a2e;
  --accent: #00d4aa;
  --accent-dark: #00a88a;
  --accent-glow: rgba(0, 212, 170, 0.3);
  --text-light: #f5f5f5;
  --text-muted: #a0a0b0;
  --text-dark: #1a1a1a;
  --bg-dark: #0d0d0d;
  --bg-card: #121212;
  --bg-section: #0a0a0a;
  --bg-alt: #111118;
  --border-color: #2a2a3a;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-sm: 0 5px 20px rgba(0, 0, 0, 0.3);
  --radius: 12px;
  --radius-lg: 24px;
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul {
  list-style: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.25rem, 2vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-muted);
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.5rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 3rem;
  text-align: center;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-primary {
  background: var(--accent);
  color: var(--primary);
  box-shadow: 0 0 30px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-dark);
  box-shadow: 0 0 50px var(--accent-glow);
  transform: translateY(-2px);
  color: var(--primary);
}

.btn-outline {
  background: transparent;
  color: var(--text-light);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-outline-light {
  background: transparent;
  color: var(--text-light);
  border: 2px solid rgba(255, 255, 255, 0.15);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent);
  color: var(--accent);
}

/* === Navigation === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-light);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -1px;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--accent), #0066ff);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--primary);
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.9rem;
  position: relative;
  padding: 4px 0;
}

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

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

.nav-links a:hover {
  color: var(--text-light);
}

.nav-cta {
  padding: 10px 24px !important;
  background: var(--accent);
  color: var(--primary) !important;
  border-radius: 50px;
  font-weight: 600 !important;
}

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

.nav-cta:hover {
  background: var(--accent-dark) !important;
  color: var(--primary) !important;
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 5px;
}

.menu-toggle span {
  width: 28px;
  height: 2px;
  background: var(--text-light);
  border-radius: 2px;
  transition: var(--transition);
}

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

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

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

/* === Hero Section === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--primary);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg .overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(0, 212, 170, 0.08) 0%, transparent 70%),
              linear-gradient(180deg, rgba(10, 10, 10, 0.3) 0%, rgba(10, 10, 10, 0.9) 100%);
  z-index: 1;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 2;
  padding-top: 100px;
}

.hero-content {
  max-width: 700px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(0, 212, 170, 0.1);
  border: 1px solid rgba(0, 212, 170, 0.2);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 2rem;
  animation: fadeInUp 0.8s ease forwards;
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero h1 {
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--accent), #0066ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  max-width: 560px;
  animation: fadeInUp 0.8s ease 0.4s forwards;
  opacity: 0;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.6s forwards;
  opacity: 0;
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  animation: fadeInUp 0.8s ease 0.8s forwards;
  opacity: 0;
}

.stat-item h3 {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.stat-item p {
  font-size: 0.85rem;
  margin-bottom: 0;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

/* === Services Section === */
.services {
  padding: 120px 0;
  background: var(--bg-section);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 3rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  border-color: rgba(0, 212, 170, 0.3);
  transform: translateY(-8px);
  box-shadow: var(--shadow);
}

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

.service-icon {
  width: 56px;
  height: 56px;
  background: rgba(0, 212, 170, 0.1);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: var(--accent);
  color: var(--primary);
}

.service-card h3 {
  margin-bottom: 0.75rem;
}

.service-card p {
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.service-link {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.service-link .arrow {
  transition: var(--transition);
}

.service-link:hover .arrow {
  transform: translateX(5px);
}

/* === Process Section === */
.process {
  padding: 120px 0;
  background: var(--bg-alt);
  position: relative;
}

.process-timeline {
  position: relative;
  margin-top: 4rem;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent);
  transform: translateX(-50%);
}

.process-step {
  display: flex;
  align-items: flex-start;
  margin-bottom: 60px;
  position: relative;
}

.process-step:nth-child(odd) {
  flex-direction: row;
}

.process-step:nth-child(even) {
  flex-direction: row-reverse;
}

.process-step-content {
  width: calc(50% - 40px);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}

.process-step-content:hover {
  border-color: rgba(0, 212, 170, 0.3);
  transform: translateY(-4px);
}

.process-step-number {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 48px;
  height: 48px;
  background: var(--accent);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  z-index: 2;
  box-shadow: 0 0 30px var(--accent-glow);
}

.process-step-content h3 {
  margin-bottom: 0.5rem;
}

.process-step-content p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* === Quality Section === */
.quality {
  padding: 120px 0;
  background: var(--bg-section);
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-top: 3rem;
}

.quality-item {
  text-align: center;
  padding: 40px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: var(--transition);
}

.quality-item:hover {
  border-color: rgba(0, 212, 170, 0.3);
  transform: translateY(-4px);
}

.quality-item .icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.quality-item h4 {
  margin-bottom: 0.5rem;
}

.quality-item p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* === About Section === */
.about {
  padding: 120px 0;
  background: var(--bg-alt);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 500px;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-image-placeholder {
  font-size: 6rem;
  opacity: 0.3;
}

.about-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(0, 212, 170, 0.1);
  border-radius: var(--radius-lg);
}

.about-text .section-label {
  margin-bottom: 1rem;
}

.about-text p {
  font-size: 1.05rem;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 2rem;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-light);
  font-weight: 500;
}

.about-feature .check {
  color: var(--accent);
  font-weight: 800;
}

/* === Contact Section === */
.contact {
  padding: 120px 0;
  background: var(--bg-section);
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 3rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-item .icon {
  width: 48px;
  height: 48px;
  background: rgba(0, 212, 170, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-item h4 {
  margin-bottom: 0.25rem;
  font-size: 1rem;
}

.contact-item p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-light);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23a0a0b0' stroke-width='2' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* === Footer === */
.footer {
  background: var(--primary);
  border-top: 1px solid var(--border-color);
  padding: 80px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand .logo {
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  max-width: 300px;
}

.footer h4 {
  font-size: 1rem;
  margin-bottom: 1.5rem;
  color: var(--text-light);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  font-size: 0.85rem;
  margin-bottom: 0;
}

.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--accent);
  color: var(--primary);
}

/* === Scroll Animations === */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* === Particle Canvas Background === */
#particle-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

/* === Cookie Consent === */
.cookie-consent {
  position: fixed;
  bottom: 20px;
  right: 20px;
  max-width: 360px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  z-index: 9999;
  display: none;
  animation: fadeInUp 0.5s ease;
  box-shadow: var(--shadow);
}

.cookie-consent.show {
  display: block;
}

.cookie-consent p {
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.cookie-actions {
  display: flex;
  gap: 10px;
}

.cookie-actions .btn {
  padding: 10px 20px;
  font-size: 0.8rem;
}

/* === Back to Top === */
.back-to-top {
  position: fixed;
  bottom: 30px;
  left: 30px;
  width: 48px;
  height: 48px;
  background: var(--accent);
  color: var(--primary);
  border: none;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  box-shadow: 0 0 30px var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 50px var(--accent-glow);
}

/* === Responsive === */
@media (max-width: 1024px) {
  .process-timeline::before {
    left: 24px;
  }
  
  .process-step,
  .process-step:nth-child(even) {
    flex-direction: row !important;
    padding-left: 60px;
  }
  
  .process-step-content {
    width: 100%;
  }
  
  .process-step-number {
    left: 0;
    transform: none;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    padding: 40px;
    transition: right 0.4s ease;
    gap: 24px;
    z-index: 999;
  }
  
  .nav-links.open {
    right: 0;
  }
  
  .menu-toggle {
    display: flex;
    z-index: 1001;
  }
  
  .menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 998;
    display: none;
  }
  
  .menu-overlay.open {
    display: block;
  }

  .hero-actions {
    flex-direction: column;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 24px;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

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

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

@media (max-width: 480px) {
  .hero-stats {
    gap: 16px;
  }
  
  .stat-item h3 {
    font-size: 1.5rem;
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 0.85rem;
  }
}

/* === Selection === */
::selection {
  background: var(--accent);
  color: var(--primary);
}

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}