@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg: #f5f5f7;
  --surface: rgba(255,255,255,.82);
  --text: #111114;
  --muted: #6e6e73;
  --line: rgba(17,17,20,.08);
  --shadow: 0 24px 70px rgba(0,0,0,.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 80% 10%, rgba(170,190,255,.22), transparent 28rem),
    radial-gradient(circle at 10% 35%, rgba(175,235,216,.20), transparent 24rem),
    var(--bg);
  color: var(--text);
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 clamp(24px, 6vw, 88px);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  background: rgba(245,245,247,.72);
  border-bottom: 1px solid rgba(0,0,0,.04);
}

.brand {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -.04em;
}

.nav {
  display: flex;
  gap: 28px;
  font-size: 14px;
  color: var(--muted);
}

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

main {
  width: min(1320px, calc(100% - 48px));
  margin: 0 auto;
}

.hero {
  position: relative;
  min-height: 590px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 920px;
}

.eyebrow {
  margin: 0 0 18px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .15em;
  color: var(--muted);
}

h1 {
  margin: 0;
  max-width: 1000px;
  font-size: clamp(58px, 8vw, 112px);
  line-height: .92;
  letter-spacing: -.065em;
  font-weight: 700;
}

.hero-text {
  max-width: 650px;
  margin: 34px 0 0;
  font-size: clamp(19px, 2vw, 27px);
  line-height: 1.35;
  letter-spacing: -.03em;
  color: var(--muted);
}

.hero-orb {
  position: absolute;
  width: 520px;
  height: 520px;
  right: -100px;
  top: 20px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.92), transparent 28%),
    linear-gradient(145deg, rgba(126,170,255,.58), rgba(170,239,218,.5), rgba(255,255,255,.18));
  filter: blur(.2px);
  opacity: .8;
  box-shadow: inset 0 0 60px rgba(255,255,255,.55);
}

.projects-section {
  padding: 70px 0 120px;
}

.section-heading {
  margin-bottom: 32px;
}

h2 {
  margin: 0;
  font-size: clamp(36px, 5vw, 58px);
  letter-spacing: -.045em;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 22px;
}

.project-card {
  min-height: 520px;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,.82);
  border-radius: 30px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,.035);
  transition: transform .35s ease, box-shadow .35s ease;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow);
}

.project-card--disabled:hover {
  transform: none;
  box-shadow: 0 10px 30px rgba(0,0,0,.035);
}

.card-visual {
  height: 300px;
  margin: 12px 12px 0;
  border-radius: 22px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255,255,255,.75), rgba(225,230,237,.82)),
    #e9eaed;
  position: relative;
}

.card-content {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding: 28px;
  flex: 1;
}

.card-kicker {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .14em;
  font-weight: 700;
  color: var(--muted);
}

.card-content h3 {
  margin: 0;
  font-size: 31px;
  letter-spacing: -.045em;
}

.card-content p:not(.card-kicker) {
  margin: 12px 0 0;
  line-height: 1.5;
  color: var(--muted);
  font-size: 14px;
}

.arrow {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #111114;
  color: #fff;
  font-size: 21px;
}

.status {
  padding: 8px 11px;
  border-radius: 999px;
  background: rgba(0,0,0,.05);
  color: var(--muted);
  font-size: 12px;
}

/* Digital twin visual */
.mini-map {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 49.6%, rgba(255,255,255,.6) 50%, transparent 50.4%),
    linear-gradient(transparent 49.6%, rgba(255,255,255,.6) 50%, transparent 50.4%),
    linear-gradient(145deg, #d7e8db, #dbe4ee);
}

.road {
  position: absolute;
  height: 12px;
  border-radius: 12px;
  background: rgba(255,255,255,.92);
  box-shadow: 0 0 0 1px rgba(0,0,0,.05);
}

.road-a { width: 150%; left: -20%; top: 47%; transform: rotate(-14deg); }
.road-b { width: 100%; left: 18%; top: 25%; transform: rotate(67deg); }
.road-c { width: 80%; left: -10%; top: 75%; transform: rotate(26deg); }

.block {
  position: absolute;
  border-radius: 9px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(0,0,0,.05);
}
.block-a { width: 86px; height: 60px; left: 17%; top: 17%; transform: rotate(-10deg); }
.block-b { width: 110px; height: 72px; right: 13%; top: 15%; transform: rotate(12deg); }
.block-c { width: 96px; height: 85px; left: 25%; bottom: 9%; transform: rotate(7deg); }

.pin {
  position: absolute;
  width: 18px;
  height: 18px;
  background: #111114;
  border-radius: 50%;
  left: 53%;
  top: 49%;
  box-shadow: 0 0 0 8px rgba(17,17,20,.13);
}

/* Data explorer visual */
.data-preview {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(3,1fr);
  grid-template-rows: repeat(3,1fr);
  gap: 3px;
  padding: 42px;
  transform: rotate(-7deg) scale(1.12);
}

.cell {
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.6);
  backdrop-filter: blur(4px);
}
.c1,.c5,.c9 { background: rgba(94,140,210,.62); }
.c2,.c6 { background: rgba(112,188,166,.62); }
.c3,.c7 { background: rgba(239,192,102,.58); }
.c4,.c8 { background: rgba(196,133,202,.5); }

/* Coming soon */
.coming-preview {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.coming-preview span {
  width: 58px;
  height: 58px;
  border-radius: 17px;
  background: rgba(255,255,255,.85);
  box-shadow: 0 10px 24px rgba(0,0,0,.06);
}

.coming-preview span:nth-child(2) { transform: translateY(-22px); }

.about-section {
  padding: 0 0 120px;
  max-width: 960px;
}

.about-copy {
  margin: 0;
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.08;
  letter-spacing: -.045em;
}

footer {
  width: min(1320px, calc(100% - 48px));
  margin: 0 auto;
  padding: 30px 0 42px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 950px) {
  .projects-grid { grid-template-columns: 1fr; }
  .project-card { min-height: 470px; }
  .hero { min-height: 500px; }
  .hero-orb { width: 360px; height: 360px; right: -160px; top: 80px; }
}

@media (max-width: 640px) {
  main, footer { width: min(100% - 28px, 1320px); }
  .topbar { height: 62px; padding: 0 18px; }
  .nav { gap: 18px; }
  .hero { min-height: 450px; }
  h1 { font-size: clamp(48px, 15vw, 72px); }
  .hero-text { margin-top: 24px; font-size: 19px; }
  .projects-section { padding-top: 36px; }
  .project-card { border-radius: 24px; }
  .card-visual { height: 240px; }
  .card-content { padding: 22px; }
}