/* Synthwave / Miami Vice palette
   - Background: deep purple-black
   - Primary neon: pink/magenta
   - Secondary neon: cyan
   - Tertiary neon: yellow
   - Accents: sunset gradient
*/

:root {
  --bg-deep:        #0a0420;
  --bg-mid:         #1a0838;
  --bg-card:        #16093d;
  --bg-card-edge:   #2a1466;

  --neon-pink:      #ff10f0;
  --neon-pink-soft: #ff6ff5;
  --neon-cyan:      #00f0ff;
  --neon-cyan-soft: #5ef6ff;
  --neon-yellow:    #fff700;
  --neon-orange:    #ff8c00;

  --text-primary:   #f0e8ff;
  --text-secondary: #b8a8e0;
  --text-dim:       #8a7eb8;

  --font-display:   'Orbitron', 'Inter', sans-serif;
  --font-body:      'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

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

/* Animated grid background — signature synthwave */
.grid-bg {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-image:
    linear-gradient(rgba(255, 16, 240, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.05) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: center top;
  z-index: -2;
  pointer-events: none;
  perspective: 800px;
  transform-style: preserve-3d;
}

.grid-bg::before {
  content: '';
  position: absolute;
  bottom: -50%; left: -50%;
  width: 200%; height: 100%;
  background:
    linear-gradient(to top, transparent 0%, var(--bg-deep) 90%),
    repeating-linear-gradient(0deg, var(--neon-pink) 0 1px, transparent 1px 60px),
    repeating-linear-gradient(90deg, var(--neon-cyan) 0 1px, transparent 1px 60px);
  transform: rotateX(75deg);
  opacity: 0.4;
}

/* Sun — neon gradient circle */
.sun {
  position: fixed;
  top: 8%;
  right: 8%;
  width: 220px; height: 220px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--neon-yellow) 0%, var(--neon-orange) 35%, var(--neon-pink) 75%);
  box-shadow:
    0 0 60px rgba(255, 16, 240, 0.5),
    0 0 120px rgba(255, 140, 0, 0.3),
    inset 0 0 60px rgba(0, 0, 0, 0.2);
  z-index: -1;
  opacity: 0.85;
  pointer-events: none;
}

.sun::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: repeating-linear-gradient(
    0deg,
    transparent 0 12px,
    rgba(10, 4, 32, 0.7) 12px 18px
  );
  mask: linear-gradient(to bottom, transparent 50%, black 60%, black 100%);
  -webkit-mask: linear-gradient(to bottom, transparent 50%, black 60%, black 100%);
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.6rem, 6vw, 5.2rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); margin-bottom: 1.2rem; }
h3 { font-size: 1.3rem; margin-bottom: 0.5rem; }
h4 { font-size: 1.1rem; margin-bottom: 0.5rem; }

.neon-pink   { color: var(--neon-pink);   text-shadow: 0 0 16px rgba(255, 16, 240, 0.7), 0 0 32px rgba(255, 16, 240, 0.4); }
.neon-cyan   { color: var(--neon-cyan);   text-shadow: 0 0 16px rgba(0, 240, 255, 0.7),  0 0 32px rgba(0, 240, 255, 0.4); }
.neon-yellow { color: var(--neon-yellow); text-shadow: 0 0 16px rgba(255, 247, 0, 0.7),  0 0 32px rgba(255, 247, 0, 0.4); }

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 4rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(10, 4, 32, 0.7);
  border-bottom: 1px solid rgba(255, 16, 240, 0.2);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.2rem;
  letter-spacing: 0.05em;
}

.logo-mark {
  color: var(--neon-pink);
  font-size: 1.6rem;
  text-shadow: 0 0 12px var(--neon-pink);
}

.logo-accent {
  color: var(--neon-cyan);
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.6);
  margin-left: 0.1em;
}

nav {
  display: flex;
  gap: 2rem;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: color 0.15s;
}

nav a:hover { color: var(--neon-cyan); }

nav a.cta-link {
  color: var(--neon-pink);
  border: 1px solid var(--neon-pink);
  padding: 0.5rem 1.2rem;
  border-radius: 4px;
  text-shadow: 0 0 8px rgba(255, 16, 240, 0.5);
  box-shadow: 0 0 16px rgba(255, 16, 240, 0.15), inset 0 0 12px rgba(255, 16, 240, 0.05);
  transition: all 0.2s;
}

nav a.cta-link:hover {
  background: var(--neon-pink);
  color: var(--bg-deep);
  text-shadow: none;
  box-shadow: 0 0 32px rgba(255, 16, 240, 0.6);
}

/* Hero */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 6rem 4rem 4rem;
  text-align: left;
  position: relative;
  z-index: 1;
}

.kicker {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--neon-cyan);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  opacity: 0.9;
}

.lede {
  max-width: 720px;
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin: 2rem 0 2.5rem;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 1.2rem;
  margin-bottom: 4rem;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--neon-pink) 0%, var(--neon-orange) 100%);
  color: var(--bg-deep);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  padding: 1rem 2rem;
  border-radius: 4px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  box-shadow: 0 0 24px rgba(255, 16, 240, 0.5), 0 4px 12px rgba(0, 0, 0, 0.3);
  transition: all 0.2s;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(255, 16, 240, 0.7), 0 8px 16px rgba(0, 0, 0, 0.4);
}

.btn-large {
  padding: 1.2rem 2.4rem;
  font-size: 1.1rem;
  width: 100%;
  margin-top: 0.5rem;
}

.btn-secondary {
  display: inline-block;
  color: var(--neon-cyan);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1rem;
  padding: 1rem 2rem;
  border-radius: 4px;
  text-decoration: none;
  border: 1px solid var(--neon-cyan);
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.4);
  transition: all 0.2s;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.btn-secondary:hover {
  background: rgba(0, 240, 255, 0.1);
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.4);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  padding: 2rem 0;
  border-top: 1px solid rgba(255, 16, 240, 0.2);
}

.hero-stats > div { display: flex; flex-direction: column; gap: 0.3rem; }

.stat-num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--neon-pink);
  text-shadow: 0 0 16px rgba(255, 16, 240, 0.5);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Engine section */
.engine {
  max-width: 1200px;
  margin: 4rem auto;
  padding: 4rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.card {
  background: linear-gradient(160deg, var(--bg-card) 0%, var(--bg-mid) 100%);
  border: 1px solid var(--bg-card-edge);
  border-radius: 8px;
  padding: 2rem;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(255, 16, 240, 0.2), 0 0 0 1px var(--neon-pink);
}

.card-num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: 0.3em;
  margin-bottom: 1rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.8rem;
}

.card-tag {
  margin-top: 1.5rem !important;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--neon-yellow);
  text-transform: uppercase;
}

/* Renders */
.renders {
  max-width: 1300px;
  margin: 4rem auto;
  padding: 4rem;
}

.section-sub {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 700px;
  margin-bottom: 3rem;
}

.render-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 2.5rem;
}

figure {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-edge);
  border-radius: 8px;
  padding: 1.5rem;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

figure:hover {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.2);
}

figure img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  background: white;
  padding: 0.5rem;
}

figcaption {
  padding-top: 1.2rem;
}

figcaption h4 {
  color: var(--neon-cyan);
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.4);
  margin-bottom: 0.6rem;
}

figcaption p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* Story */
.story {
  max-width: 1200px;
  margin: 4rem auto;
  padding: 4rem;
}

.story-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  margin-top: 2.5rem;
}

.story-col {
  border-left: 2px solid var(--neon-pink);
  padding: 0.5rem 1.5rem 2rem;
  background: linear-gradient(90deg, rgba(255, 16, 240, 0.05) 0%, transparent 50%);
}

.story-col:nth-child(2) {
  border-left-color: var(--neon-cyan);
  background: linear-gradient(90deg, rgba(0, 240, 255, 0.05) 0%, transparent 50%);
}

.story-col:nth-child(3) {
  border-left-color: var(--neon-yellow);
  background: linear-gradient(90deg, rgba(255, 247, 0, 0.05) 0%, transparent 50%);
}

.year {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 0.9rem;
  color: var(--text-dim);
  letter-spacing: 0.3em;
  margin-bottom: 1rem;
}

.story-col h3 { margin-bottom: 1rem; }

.story-col p {
  color: var(--text-secondary);
  font-size: 0.98rem;
}

/* White paper form */
.paper {
  max-width: 1200px;
  margin: 4rem auto;
  padding: 4rem;
}

.paper-card {
  background: linear-gradient(160deg, var(--bg-card) 0%, var(--bg-mid) 100%);
  border: 2px solid var(--neon-pink);
  border-radius: 12px;
  padding: 4rem;
  box-shadow: 0 0 48px rgba(255, 16, 240, 0.2), inset 0 0 32px rgba(255, 16, 240, 0.05);
  max-width: 720px;
  margin: 0 auto;
}

.paper-card .kicker {
  color: var(--neon-pink);
  margin-bottom: 1rem;
}

.paper-lede {
  color: var(--text-secondary);
  margin: 1.5rem 0 2.5rem;
  font-size: 1.05rem;
  line-height: 1.7;
}

.paper-form .form-row {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.2rem;
}

.paper-form label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--neon-cyan);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.paper-form input {
  background: rgba(10, 4, 32, 0.6);
  border: 1px solid var(--bg-card-edge);
  border-radius: 4px;
  padding: 0.9rem 1.2rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.paper-form input:focus {
  outline: none;
  border-color: var(--neon-cyan);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.3);
}

.paper-form input::placeholder { color: var(--text-dim); }

.form-disclaimer {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-align: center;
  margin-top: 1rem;
}

/* Footer */
footer {
  border-top: 1px solid rgba(255, 16, 240, 0.2);
  padding: 3rem 4rem;
  margin-top: 4rem;
  background: rgba(10, 4, 32, 0.5);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.2rem;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.footer-text, .footer-stack {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin: 0.5rem 0;
}

.footer-text a {
  color: var(--neon-cyan);
  text-decoration: none;
  transition: text-shadow 0.2s;
}

.footer-text a:hover {
  text-shadow: 0 0 8px var(--neon-cyan);
}

/* Mobile */
@media (max-width: 768px) {
  header { padding: 1rem 1.5rem; flex-direction: column; gap: 1rem; }
  nav { gap: 1rem; font-size: 0.9rem; }
  .hero { padding: 3rem 1.5rem 2rem; }
  .engine, .renders, .story, .paper { padding: 2rem 1.5rem; }
  .paper-card { padding: 2rem 1.5rem; }
  .sun { width: 140px; height: 140px; top: 12%; right: -20px; opacity: 0.5; }
  h1 { font-size: 2.4rem; }
}