@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@300;400;500;600&display=swap');

:root {
  /* Luxury Dark / Titanium Palette (Apple & McLaren Editorial Standard) */
  --bg-black: #000000;
  --bg-deep: #050507;
  --bg-card: #0a0a0d;
  --bg-card-hover: #101015;
  --bg-surface: #141419;
  --bg-surface-elevated: #1a1a22;
  
  /* Precision Structural Borders */
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-medium: rgba(255, 255, 255, 0.12);
  --border-active: rgba(255, 255, 255, 0.28);
  --border-focus: #ffffff;
  
  /* Surgical Accent Palette (Controlled High-End Tech Tones) */
  --accent-blue: #0066ff;
  --accent-cobalt: #1d4ed8;
  --accent-cyan: #38bdf8;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-crimson: #e11d48;
  
  /* Precision Monochromatic Typography */
  --text-white: #ffffff;
  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-tertiary: #71717a;
  --text-muted: #52525b;
  --text-hairline: #27272a;

  /* Fonts */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
  
  /* Geometry */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  /* Shadows & Depth */
  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.6);
  --shadow-elevation: 0 20px 50px -10px rgba(0, 0, 0, 0.8), 0 0 0 1px var(--border-subtle);
  
  /* Micro-transitions */
  --ease-out-quad: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.18s var(--ease-out-quad);
  --transition-smooth: 0.35s var(--ease-out-quad);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  background-color: var(--bg-black);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-black);
  color: var(--text-primary);
  line-height: 1.55;
  overflow-x: hidden;
  position: relative;
}

/* Subtle Studio Vignette (Pure luxury lighting, no cheap neon dots) */
.studio-vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: 
    radial-gradient(100% 60% at 50% 0%, rgba(255, 255, 255, 0.035) 0%, transparent 60%),
    radial-gradient(80% 50% at 50% 100%, rgba(0, 102, 255, 0.02) 0%, transparent 70%);
}

.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

/* Editorial Monospace Technical Header */
.technical-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.technical-label::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent-blue);
  border-radius: 50%;
}

/* Header & Nav - Apple / McLaren Minimalist Bar */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 68px;
  z-index: 100;
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--text-white);
}

.brand-logo-img {
  height: 38px;
  width: auto;
  max-width: 48px;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 2px 8px rgba(0, 102, 255, 0.35));
  transition: transform var(--transition-fast);
}

.brand:hover .brand-logo-img {
  transform: scale(1.06);
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-xs);
  background: #ffffff;
  color: #000000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 0.85rem;
  font-family: var(--font-sans);
  letter-spacing: -0.02em;
}

.brand-info {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-white);
}

.brand-subtitle {
  font-size: 0.62rem;
  font-family: var(--font-mono);
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-white);
}

.nav-link.active {
  color: var(--text-white);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Precision Luxury Buttons (Apple / McLaren Style) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--text-white);
  color: var(--bg-black);
  border: 1px solid #ffffff;
}

.btn-primary:hover {
  background: #e4e4e7;
  transform: scale(1.02);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--text-white);
}

.btn-sm {
  padding: 6px 16px;
  font-size: 0.78rem;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-white);
  padding: 8px;
  border-radius: var(--radius-xs);
  cursor: pointer;
}

/* Sections Structure */
section {
  padding: 120px 0;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  margin-bottom: 64px;
}

.section-header.text-center {
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: 2.85rem;
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.04em;
  color: var(--text-white);
  margin: 16px 0 20px;
}

.section-subtitle {
  font-size: 1.08rem;
  color: var(--text-secondary);
  line-height: 1.65;
  font-weight: 400;
  max-width: 680px;
}

.section-header.text-center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* Editorial Divider */
.hairline {
  height: 1px;
  background: var(--border-subtle);
  width: 100%;
  margin: 48px 0;
}

/* Footer Minimalist */
.footer {
  background: var(--bg-black);
  padding: 80px 0 40px;
  position: relative;
  z-index: 10;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 56px;
  padding-bottom: 60px;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-desc {
  color: var(--text-muted);
  font-size: 0.84rem;
  margin-top: 18px;
  max-width: 340px;
  line-height: 1.7;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-weight: 600;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.82rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  font-size: 0.76rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

@media (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  .section-title {
    font-size: 2.15rem;
  }
}