:root {
  --bg: #0a0e17;
  --bg-surface: #111827;
  --bg-card: #161f33;
  --fg: #e8ecf4;
  --fg-muted: #8b97b0;
  --cyan: #22d3ee;
  --cyan-dim: rgba(34, 211, 238, 0.12);
  --cyan-glow: rgba(34, 211, 238, 0.25);
  --navy: #1e3a5f;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 6rem 2rem 4rem;
  overflow: hidden;
}

.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--cyan-dim) 1px, transparent 1px),
    linear-gradient(90deg, var(--cyan-dim) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 50% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 50% at 50% 40%, black 20%, transparent 70%);
  opacity: 0.5;
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 720px;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  padding: 6px 18px;
  border: 1px solid var(--cyan-dim);
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 2rem;
  background: var(--cyan-dim);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 1.5rem;
}

.hero h1 .accent {
  color: var(--cyan);
  display: block;
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Hero Visual: 2D to 3D Transform Demo */
.hero-visual {
  position: relative;
  z-index: 1;
  margin-top: 4rem;
}

.transform-demo {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.flat-plan {
  position: relative;
  width: 140px;
  height: 140px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 3px;
  padding: 3px;
  border: 2px solid var(--cyan);
  border-radius: 4px;
  opacity: 0.7;
}

.plan-room {
  border: 1px solid rgba(34, 211, 238, 0.4);
  border-radius: 2px;
}

.plan-label {
  position: absolute;
  bottom: -28px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--fg-muted);
  letter-spacing: 0.1em;
}

.arrow-morph svg {
  display: block;
}

.risen-plan {
  position: relative;
  width: 140px;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.iso-building {
  position: relative;
  width: 100px;
  height: 100px;
}

.iso-face {
  position: absolute;
}

.iso-top {
  width: 70px;
  height: 40px;
  background: var(--cyan);
  opacity: 0.35;
  transform: skewX(-30deg);
  top: 10px;
  left: 28px;
  border-radius: 2px;
}

.iso-left {
  width: 50px;
  height: 55px;
  background: var(--cyan);
  opacity: 0.2;
  transform: skewY(-15deg);
  top: 22px;
  left: 8px;
  border-radius: 2px;
}

.iso-right {
  width: 50px;
  height: 55px;
  background: var(--cyan);
  opacity: 0.45;
  transform: skewY(15deg);
  top: 34px;
  left: 42px;
  border-radius: 2px;
}

/* PROCESS */
.process {
  padding: 6rem 2rem;
  background: var(--bg-surface);
}

.process-inner {
  max-width: 960px;
  margin: 0 auto;
}

.process h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 3.5rem;
  text-align: center;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.step {
  position: relative;
  padding: 2rem 1.5rem;
}

.step-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--cyan);
  opacity: 0.25;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.step-line {
  width: 40px;
  height: 3px;
  background: var(--cyan);
  margin-bottom: 1.25rem;
  border-radius: 2px;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--fg);
}

.step p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* FEATURES */
.features {
  padding: 6rem 2rem;
}

.features-inner {
  max-width: 1060px;
  margin: 0 auto;
}

.feature-block {
  max-width: 600px;
  margin-bottom: 3.5rem;
}

.feature-tag {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1rem;
}

.feature-block h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.feature-block p {
  color: var(--fg-muted);
  font-size: 1.05rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid rgba(34, 211, 238, 0.08);
  border-radius: 12px;
  padding: 2rem;
  transition: border-color 0.2s ease;
}

.feature-card:hover {
  border-color: rgba(34, 211, 238, 0.25);
}

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

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  color: var(--fg);
}

.feature-card p {
  color: var(--fg-muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* CLOSING */
.closing {
  padding: 7rem 2rem;
  text-align: center;
  background: var(--bg-surface);
}

.closing-inner {
  max-width: 680px;
  margin: 0 auto;
}

.closing-line {
  width: 60px;
  height: 3px;
  background: var(--cyan);
  margin: 0 auto 2.5rem;
  border-radius: 2px;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 1.5rem;
}

.closing-sub {
  color: var(--fg-muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

/* FOOTER */
.site-footer {
  padding: 3rem 2rem;
  border-top: 1px solid rgba(34, 211, 238, 0.08);
}

.footer-inner {
  max-width: 1060px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--fg);
}

.footer-tagline {
  color: var(--fg-muted);
  font-size: 0.9rem;
  font-style: italic;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .steps {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

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

  .transform-demo {
    flex-direction: column;
    gap: 1.5rem;
  }

  .arrow-morph svg {
    transform: rotate(90deg);
  }

  .hero {
    padding: 4rem 1.5rem 3rem;
    min-height: auto;
  }

  .process, .features, .closing {
    padding: 4rem 1.5rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}
/* ─── Hero CTA Button ────────────────────────────────────────────────────── */
.hero-cta {
  display: inline-block;
  margin-top: 2.5rem;
  padding: 1rem 2.25rem;
  background: var(--cyan);
  color: #0a0e17;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  border-radius: 12px;
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: opacity 0.15s, transform 0.15s;
  box-shadow: 0 0 30px var(--cyan-glow);
}

.hero-cta:hover {
  opacity: 0.88;
  transform: translateY(-2px);
}