/* ============================================
   ByteLathe — Precision-Engineered Software
   ============================================ */

/* --- Custom Properties --- */
:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a2235;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.15);
  --accent-glow: rgba(0, 212, 255, 0.4);
  --accent-secondary: #0066ff;
  --border: rgba(148, 163, 184, 0.1);
  --nav-height: 72px;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --max-width: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- 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-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Blueprint grid background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

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

a:hover {
  color: #fff;
}

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

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1.2;
}

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  position: relative;
  padding-left: 2rem;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 1.2rem;
  height: 1px;
  background: var(--accent);
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 1.25rem;
  color: #fff;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  position: relative;
  z-index: 1;
  padding: 6rem 0;
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--transition), transform 0.7s var(--transition);
}

.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; }

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  background: rgba(10, 14, 23, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
}

.nav-logo svg {
  width: 32px;
  height: 32px;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition);
  font-weight: 500;
}

.nav-links a:hover {
  color: #fff;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

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

/* ============================================
   Hero
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-tagline {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-family: var(--font-mono);
  font-weight: 800;
  line-height: 1.1;
  color: #fff;
  margin-bottom: 1.5rem;
}

.hero-tagline .accent {
  color: var(--accent);
  text-shadow: 0 0 30px var(--accent-glow);
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--bg-primary);
  background: var(--accent);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  box-shadow: 0 0 20px var(--accent-glow);
}

.hero-cta:hover {
  background: #fff;
  color: var(--bg-primary);
  box-shadow: 0 0 30px rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

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

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

/* Lathe Animation */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.lathe-animation {
  position: relative;
  width: 400px;
  height: 400px;
}

.lathe-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid transparent;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.lathe-ring-1 {
  width: 320px;
  height: 320px;
  border-color: rgba(0, 212, 255, 0.2);
  border-top-color: var(--accent);
  animation: lathe-spin 8s linear infinite;
}

.lathe-ring-2 {
  width: 240px;
  height: 240px;
  border-color: rgba(0, 102, 255, 0.15);
  border-right-color: var(--accent-secondary);
  animation: lathe-spin 6s linear infinite reverse;
}

.lathe-ring-3 {
  width: 160px;
  height: 160px;
  border-color: rgba(0, 212, 255, 0.1);
  border-bottom-color: var(--accent);
  animation: lathe-spin 4s linear infinite;
}

.lathe-ring-4 {
  width: 80px;
  height: 80px;
  border-color: rgba(0, 102, 255, 0.1);
  border-left-color: var(--accent-secondary);
  animation: lathe-spin 3s linear infinite reverse;
}

.lathe-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 40px var(--accent-glow), 0 0 80px rgba(0, 212, 255, 0.2);
}

/* Floating byte particles */
.byte-particle {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  opacity: 0.3;
  animation: float-particle 10s linear infinite;
}

.byte-particle:nth-child(1) { top: 10%; left: 15%; animation-delay: 0s; }
.byte-particle:nth-child(2) { top: 70%; left: 80%; animation-delay: -3s; }
.byte-particle:nth-child(3) { top: 30%; left: 70%; animation-delay: -6s; }
.byte-particle:nth-child(4) { top: 80%; left: 20%; animation-delay: -1.5s; }
.byte-particle:nth-child(5) { top: 50%; left: 90%; animation-delay: -4.5s; }
.byte-particle:nth-child(6) { top: 15%; left: 55%; animation-delay: -7.5s; }

@keyframes lathe-spin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes float-particle {
  0%, 100% { opacity: 0; transform: translateY(0) scale(0.8); }
  20% { opacity: 0.4; }
  50% { opacity: 0.2; transform: translateY(-20px) scale(1); }
  80% { opacity: 0.4; }
}

/* ============================================
   Services
   ============================================ */
.services {
  background: var(--bg-secondary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem 1.5rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 12px;
  padding: 1px;
  background: linear-gradient(135deg, transparent 40%, var(--accent-dim));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition);
}

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

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 212, 255, 0.08);
  border-color: rgba(0, 212, 255, 0.15);
}

.service-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--accent-dim);
  margin-bottom: 1.25rem;
  color: var(--accent);
}

.service-icon svg {
  width: 24px;
  height: 24px;
}

.service-card h3 {
  font-size: 1.05rem;
  color: #fff;
  margin-bottom: 0.75rem;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   About
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  margin-top: 3rem;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.values-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.value-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.value-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--accent-dim);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
}

.value-item h4 {
  font-size: 1rem;
  color: #fff;
  margin-bottom: 0.3rem;
}

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

/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
}

.stat {
  text-align: center;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================
   Contact
   ============================================ */
.contact {
  background: var(--bg-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 3rem;
}

.contact-info p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-method svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

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

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

.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--bg-primary);
  background: var(--accent);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition);
  align-self: flex-start;
}

.btn-submit:hover {
  background: #fff;
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.15);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.form-status {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  min-height: 1.2em;
}

.form-status.success {
  color: #34d399;
}

.form-status.error {
  color: #f87171;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-visual {
    display: none;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

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

  section {
    padding: 4rem 0;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 14, 23, 0.97);
    backdrop-filter: blur(12px);
    padding: 1.5rem;
    gap: 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 1rem;
  }

  .nav-links li:last-child a {
    border-bottom: none;
  }

  .nav-toggle {
    display: flex;
  }

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

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

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

  .footer-inner {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* ============================================
   Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}