/* ═══════════════════════════════════════════════
   EM LABS — Global Design System
   Pure CSS — No frameworks, no dependencies
   ═══════════════════════════════════════════════ */

/* ── Design Tokens ── */
:root {
  --color-bg: #05080F;
  --color-surface: #0C121E;
  --color-surface-2: #141C2F;
  --color-surface-3: #1A2335;
  --color-primary: #00E5FF;
  --color-accent: #E67E22;
  --color-text: #E8EDF5;
  --color-text-muted: #8A9AB0;
  --color-text-dark: #5C6B82;
  --color-border: rgba(0, 229, 255, 0.15);
  --color-border-hover: rgba(0, 229, 255, 0.4);
  --glow-primary: 0 0 25px rgba(0, 229, 255, 0.4);
  --glow-accent: 0 0 25px rgba(230, 126, 34, 0.4);
  --glow-cyan-soft: 0 0 50px rgba(0, 229, 255, 0.15);
  --radius-card: 16px;
  --radius-btn: 8px;
  --radius-pill: 100px;
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ── Selection ── */
::selection {
  background: rgba(0, 212, 255, 0.3);
  color: #fff;
}

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

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

::-webkit-scrollbar-thumb {
  background: rgba(0, 212, 255, 0.3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 212, 255, 0.5);
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }

p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ── Utility Classes ── */
.glass {
  background: rgba(15, 22, 37, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
}

.glow-border {
  position: relative;
}

.glow-border::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -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-smooth);
  pointer-events: none;
}

.glow-border:hover::before {
  opacity: 1;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  background: rgba(0, 212, 255, 0.1);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-cyan {
  background: rgba(0, 212, 255, 0.15);
  color: var(--color-primary);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.badge-violet {
  background: rgba(123, 47, 255, 0.15);
  color: var(--color-accent);
  border: 1px solid rgba(123, 47, 255, 0.2);
}

.badge-green {
  background: rgba(0, 255, 136, 0.15);
  color: #00FF88;
  border: 1px solid rgba(0, 255, 136, 0.2);
}

.badge-orange {
  background: rgba(255, 165, 0, 0.15);
  color: #FFA500;
  border: 1px solid rgba(255, 165, 0, 0.2);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-btn);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-bg);
  background: linear-gradient(135deg, var(--color-primary), #00A8CC);
  border: none;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-smooth);
  cursor: pointer;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #00A8CC, var(--color-primary));
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-primary);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary span {
  position: relative;
  z-index: 1;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-btn);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-primary);
  background: transparent;
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-smooth);
  cursor: pointer;
}

.btn-secondary:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--color-primary);
  box-shadow: var(--glow-primary);
  transform: translateY(-2px);
}

.btn-secondary span {
  position: relative;
  z-index: 1;
}

.section-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid var(--color-border);
  margin-bottom: 1.5rem;
}

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

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(0, 212, 255, 0.3); }
  50% { box-shadow: 0 0 40px rgba(0, 212, 255, 0.5); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

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

@keyframes circuitPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.7; }
}

@keyframes borderGlow {
  0%, 100% { border-color: rgba(0, 212, 255, 0.15); }
  50% { border-color: rgba(0, 212, 255, 0.4); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ── Navbar (shared) ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: all var(--transition-smooth);
}

.navbar.scrolled {
  background: rgba(10, 14, 26, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.navbar-inner {
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  color: #fff;
  text-decoration: none;
}

.logo svg {
  width: 36px;
  height: 36px;
}

.logo-img {
  height: 40px;
  width: auto;
  max-width: none;
  max-height: 40px;
  display: block;
}

.logo span {
  background: linear-gradient(135deg, #fff, var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-smooth);
  position: relative;
  padding: 8px 0;
  text-decoration: none;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width var(--transition-smooth);
}

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

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

/* Mobile */
.mobile-menu-btn {
  display: none;
  width: 36px;
  height: 36px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  transition: all var(--transition-smooth);
}

/* ── Footer (shared) ── */
.footer {
  padding: 60px 24px 32px;
  border-top: 1px solid var(--color-border);
  position: relative;
}

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

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 40px;
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  margin-bottom: 12px;
  font-size: 1.3rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.footer-links h4 {
  font-size: 0.9rem;
  color: #fff;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-heading);
}

.footer-links a {
  display: block;
  padding: 6px 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: color var(--transition-smooth);
  text-decoration: none;
}

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

.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-dark);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  h1 { font-size: clamp(2rem, 8vw, 3rem); }
  h2 { font-size: clamp(1.5rem, 6vw, 2rem); }

  .nav-links {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 40px 24px;
    gap: 0;
    transform: translateX(100%);
    transition: transform var(--transition-smooth);
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-links a {
    font-size: 1.2rem;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
    width: 100%;
    text-align: center;
  }

  .mobile-menu-btn {
    display: flex;
  }

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

  .footer-links {
    justify-content: center;
  }
}