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

:root {
  --bg: #08080b;
  --bg-2: #0f0f15;
  --bg-3: #16161f;
  --fg: #e8e8f0;
  --fg-muted: #7a7a8c;
  --accent: #00e5ff;
  --accent-dim: rgba(0, 229, 255, 0.12);
  --accent-border: rgba(0, 229, 255, 0.25);
  --orange: #ff6b35;
  --font-display: 'Space Grotesk', 'Helvetica Neue', sans-serif;
  --font-body: 'DM Sans', 'Helvetica Neue', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* === NAVBAR === */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  position: sticky;
  top: 0;
  background: rgba(8,8,11,0.9);
  backdrop-filter: blur(12px);
  z-index: 100;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--fg);
}

.nav-tagline {
  font-size: 13px;
  color: var(--fg-muted);
  font-family: var(--font-body);
  letter-spacing: 0.02em;
}

/* === HERO === */
.hero {
  padding: 80px 48px 64px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(0,229,255,0.05) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  max-width: 1200px;
  margin: 0 auto;
  align-items: center;
}

.hero-eyebrow {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 20px;
  font-family: var(--font-display);
  font-weight: 600;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 62px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 17px;
  color: var(--fg-muted);
  line-height: 1.65;
  max-width: 420px;
  margin-bottom: 36px;
}

.hero-visual-strip {
  border: 1px solid var(--accent-border);
  border-radius: 10px;
  padding: 20px 24px;
  background: var(--accent-dim);
  max-width: 380px;
}

.strip-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 600;
  margin-bottom: 14px;
}

.activity-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.activity-row.muted { opacity: 0.5; }

.activity-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
}

.activity-dot-sm {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--fg-muted);
  flex-shrink: 0;
}

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

.activity-text { font-size: 13px; font-family: var(--font-display); font-weight: 500; }
.activity-text-sm { font-size: 12px; color: var(--fg-muted); }

/* === CITY SCENE === */
.hero-city {
  display: flex;
  align-items: center;
  justify-content: center;
}

.city-scene {
  width: 100%;
  max-width: 440px;
  aspect-ratio: 16/9;
  background: linear-gradient(180deg, #0a0a14 0%, #0d0d1a 60%, #111128 100%);
  border: 1px solid var(--accent-border);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  box-shadow: 0 0 60px rgba(0,229,255,0.06);
}

.sky-layer {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(0,229,255,0.03) 0%, transparent 60%);
}

.horizon-layer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(180deg, transparent 0%, rgba(0,229,255,0.02) 100%);
}

.grid-overlay {
  position: absolute;
  inset: 0;
}

.grid-line {
  position: absolute;
  background: rgba(0,229,255,0.04);
}

.grid-line.h { left: 0; right: 0; height: 1px; }
.grid-line.v { top: 0; bottom: 0; width: 1px; }

.building {
  position: absolute;
  bottom: 0;
  border-radius: 2px 2px 0 0;
}

.antenna {
  position: absolute;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.antenna-pole {
  width: 1px;
  height: 20px;
  background: rgba(0,229,255,0.4);
}

.antenna-glow {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  animation: pulse 1.5s ease-in-out infinite;
}

.city-label {
  position: absolute;
  bottom: 10px;
  right: 14px;
  font-size: 10px;
  color: rgba(0,229,255,0.35);
  font-family: 'Space Grotesk', monospace;
  letter-spacing: 0.05em;
}

/* === WHAT IT DOES === */
.what-it-does {
  padding: 80px 48px;
  background: var(--bg-2);
}

.section-header { margin-bottom: 52px; }

.section-eyebrow {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 600;
  margin-bottom: 12px;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--fg);
}

.roles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.roles-grid .role-card:last-child {
  grid-column: 1 / -1;
  max-width: 340px;
  justify-self: center;
  width: 100%;
}

.role-card {
  background: var(--bg-3);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 0.2s ease;
}

.role-card:hover { border-color: var(--accent-border); }

.role-card.featured {
  border-color: rgba(255,107,53,0.25);
  background: linear-gradient(135deg, rgba(255,107,53,0.05) 0%, var(--bg-3) 100%);
}

.role-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.role-card.featured .role-icon {
  background: rgba(255,107,53,0.12);
}

.role-card h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 10px;
}

.role-card p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* === HOW IT WORKS === */
.how-it-works {
  padding: 80px 48px;
}

.process-layout { max-width: 1200px; margin: 0 auto; }

.process-header { margin-bottom: 56px; }

.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
}

.process-step { position: relative; }

.step-num {
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 700;
  color: rgba(0,229,255,0.08);
  line-height: 1;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 12px;
}

.step-content p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* === VISION === */
.vision {
  padding: 80px 48px;
  background: var(--bg-2);
}

.vision-layout {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.vision-text p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.vision-quote {
  padding: 36px 40px;
  border: 1px solid var(--accent-border);
  border-radius: 14px;
  background: var(--accent-dim);
}

.vision-quote blockquote {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--fg);
  line-height: 1.5;
  font-style: normal;
}

/* === CLOSING === */
.closing {
  padding: 100px 48px;
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(0,229,255,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.closing-statement {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.5vw, 42px);
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.02em;
  line-height: 1.2;
  max-width: 700px;
  margin: 0 auto 20px;
}

.closing-sub {
  font-size: 15px;
  color: var(--fg-muted);
  max-width: 480px;
  margin: 0 auto;
}

/* === FOOTER === */
footer {
  padding: 28px 48px;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  color: var(--fg);
}

.footer-copy {
  font-size: 13px;
  color: var(--fg-muted);
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-city { order: -1; }
  .city-scene { max-width: 100%; }
  .roles-grid { grid-template-columns: 1fr 1fr; }
  .roles-grid .role-card:last-child { grid-column: 1 / -1; max-width: 100%; }
  .process-steps { grid-template-columns: 1fr; gap: 32px; }
  .vision-layout { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .navbar { padding: 16px 24px; }
  .hero { padding: 48px 24px 40px; }
  .what-it-does { padding: 48px 24px; }
  .how-it-works { padding: 48px 24px; }
  .vision { padding: 48px 24px; }
  .closing { padding: 64px 24px; }
  footer { padding: 20px 24px; }
  .roles-grid { grid-template-columns: 1fr; }
  .footer-content { flex-direction: column; gap: 10px; text-align: center; }
}