@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=IBM+Plex+Sans:wght@300;400;500;600&display=swap');

:root {
  color-scheme: light;
  --bg-0: #070e0c;
  --bg-1: #0e1714;
  --bg-2: #12221d;
  --bg-3: #1a2f28;
  --ink-0: #eef7f2;
  --ink-1: #c9ded5;
  --ink-2: #93b3a6;
  --accent-1: #4be3a5;
  --accent-2: #ffb347;
  --accent-3: #7fd6ff;
  --danger: #ff6b6b;
  --grid-line: rgba(96, 142, 124, 0.18);
  --panel: rgba(11, 25, 21, 0.78);
  --panel-strong: rgba(15, 34, 29, 0.95);
  --glass: rgba(255, 255, 255, 0.06);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
}

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

body {
  font-family: 'Space Grotesk', 'IBM Plex Sans', system-ui, sans-serif;
  background:
    radial-gradient(circle at 20% 20%, rgba(75, 227, 165, 0.15), transparent 55%),
    radial-gradient(circle at 80% 10%, rgba(127, 214, 255, 0.12), transparent 50%),
    radial-gradient(circle at 10% 80%, rgba(255, 179, 71, 0.18), transparent 40%),
    linear-gradient(120deg, var(--bg-0) 0%, var(--bg-1) 45%, var(--bg-2) 100%);
  color: var(--ink-0);
  min-height: 100vh;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(circle at 20% 20%, black, transparent 70%);
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(140deg, transparent 65%, rgba(75, 227, 165, 0.12)),
    linear-gradient(-140deg, transparent 70%, rgba(127, 214, 255, 0.1));
  pointer-events: none;
  z-index: 0;
  opacity: 0.8;
}

main {
  position: relative;
  z-index: 1;
}

.container {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

nav {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(8, 14, 12, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  position: relative;
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(145deg, var(--accent-1), var(--accent-3));
  display: grid;
  place-items: center;
  color: var(--bg-0);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-logo {
  height: 110px;
  width: auto;
  object-fit: contain;
  border-radius: 0;
  background: transparent;
  border: none;
  box-shadow: none;
}

.brand h1 {
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 26px;
  align-items: center;
}

.nav-links a {
  color: var(--ink-1);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--accent-1);
  transition: width 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--ink-0);
}

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

.nav-cta {
  display: flex;
  gap: 12px;
  align-items: center;
}

.button {
  text-decoration: none;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  display: inline-flex;
  gap: 10px;
  align-items: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button.primary {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-3));
  color: var(--bg-0);
  box-shadow: 0 18px 35px rgba(75, 227, 165, 0.22);
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--ink-0);
  background: rgba(255, 255, 255, 0.05);
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.35);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--ink-0);
  padding: 10px 14px;
  border-radius: 10px;
  font-weight: 600;
}

.hero {
  padding: 80px 0 60px;
  display: grid;
  gap: 32px;
  align-items: center;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.hero h2 {
  font-size: clamp(2.6rem, 3.8vw, 4rem);
  line-height: 1.05;
}

.hero p {
  color: var(--ink-1);
  font-size: 1.05rem;
  line-height: 1.6;
}

.hero-panel {
  background: var(--panel);
  border-radius: var(--radius-xl);
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.hero-panel::after {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(75, 227, 165, 0.35), transparent 70%);
}

.hero-meta {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.hero-trace {
  margin-top: 20px;
  display: grid;
  gap: 8px;
}

.hero-trace img {
  width: 100%;
  max-height: 140px;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(6, 12, 10, 0.6);
}

.hero-trace span {
  font-size: 0.85rem;
  color: var(--ink-2);
}

.meta-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
  color: var(--ink-2);
}

.meta-row strong {
  color: var(--ink-0);
  font-weight: 600;
}

.section {
  padding: 60px 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 32px;
}

.section-header h3 {
  font-size: 2rem;
}

.section-header p {
  color: var(--ink-2);
  max-width: 520px;
}

.grid {
  display: grid;
  gap: 22px;
}

.grid.cols-2 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid.cols-3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.grid.cols-4 {
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}

.card {
  background: var(--panel);
  border-radius: var(--radius-lg);
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
  min-height: 160px;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(75, 227, 165, 0.4), transparent 60%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover::before {
  opacity: 1;
}

.card h4 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.card p {
  color: var(--ink-2);
  line-height: 1.6;
}

.badge {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-1);
  margin-bottom: 14px;
}

.kpi {
  display: grid;
  gap: 6px;
  padding: 18px;
  border-radius: var(--radius-md);
  background: var(--panel-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.kpi .value {
  font-size: 1.8rem;
  font-weight: 600;
}

.kpi .label {
  color: var(--ink-2);
  font-size: 0.9rem;
}

.tech-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.tech-table th,
.tech-table td {
  text-align: left;
  padding: 14px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.tech-table th {
  color: var(--ink-2);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
}

.sensor-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.sensor {
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(12, 24, 20, 0.8);
}

.sensor span {
  color: var(--accent-3);
  font-weight: 600;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  gap: 10px;
  grid-template-columns: 140px 1fr;
  align-items: start;
}

.timeline-item strong {
  color: var(--accent-1);
}

.data-panel {
  background: rgba(9, 18, 16, 0.9);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.data-panel::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(75, 227, 165, 0.08), transparent 60%);
  opacity: 0.6;
  pointer-events: none;
}

.terminal {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.9rem;
  color: var(--ink-1);
  background: rgba(5, 10, 9, 0.85);
  border-radius: var(--radius-md);
  padding: 16px;
  line-height: 1.6;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.trace-panel {
  display: grid;
  gap: 16px;
}

.trace-image {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(6, 12, 10, 0.7);
}

.trace-caption {
  color: var(--ink-2);
  font-size: 0.95rem;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.cta {
  background: linear-gradient(135deg, rgba(75, 227, 165, 0.2), rgba(127, 214, 255, 0.18));
  border-radius: var(--radius-xl);
  padding: 40px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: grid;
  gap: 20px;
  align-items: center;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.footer {
  padding: 40px 0 60px;
  color: var(--ink-2);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 60px;
}

.funding-strip {
  display: flex;
  justify-content: center;
  padding-bottom: 24px;
}

.funding-strip img {
  max-width: min(630px, 64vw);
  width: 70%;
  height: auto;
  opacity: 0.9;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.35));
}

.footer-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--ink-1);
  font-size: 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.form {
  display: grid;
  gap: 16px;
  width: 100%;
  max-width: 520px;
}

.form input,
.form textarea,
.form select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(6, 12, 10, 0.8);
  color: var(--ink-0);
  font-family: inherit;
  font-size: 0.95rem;
}

.form input:focus,
.form textarea:focus,
.form select:focus {
  outline: 2px solid rgba(75, 227, 165, 0.4);
  border-color: transparent;
}

.form button {
  cursor: pointer;
}

.metric-bar {
  display: grid;
  gap: 6px;
}

.metric-bar span {
  display: inline-flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--ink-2);
}

.metric-bar .bar {
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.metric-bar .bar div {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-3));
}

.tag-grid {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.float-card {
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  animation: reveal 0.8s ease forwards;
}

.reveal.delay-1 {
  animation-delay: 0.15s;
}

.reveal.delay-2 {
  animation-delay: 0.3s;
}

.reveal.delay-3 {
  animation-delay: 0.45s;
}

@keyframes reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .nav-links {
    position: absolute;
    top: 70px;
    right: 4vw;
    background: rgba(8, 14, 12, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 18px;
    border-radius: 16px;
    display: none;
    flex-direction: column;
    gap: 18px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .brand-logo {
    height: 84px;
  }

  .hero {
    padding-top: 50px;
  }

  .cta {
    padding: 28px;
  }
}