/* AURA landing v2 — dark tech scroll experience (taste-skill: variance 8 / motion 8 / density 4) */

:root {
  --bg: #05080c;
  --bg-elevated: #0a1018;
  --bg-card: #0f1620;
  --text: #f0f4f8;
  --muted: #7d8fa3;
  --line: rgba(255, 255, 255, 0.07);
  --accent: #0ea5e9;
  --accent-glow: rgba(14, 165, 233, 0.35);
  --ok: #22c55e;
  --alert: #ef4444;
  --font: "Outfit", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --radius: 16px;
  --nav-h: 68px;
  --max: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 60;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.mesh-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 20% 10%, rgba(14, 165, 233, 0.14), transparent 55%),
    radial-gradient(ellipse 60% 40% at 85% 70%, rgba(34, 197, 94, 0.08), transparent 50%),
    var(--bg);
}

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

/* Nav */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 1.25rem;
  max-width: 100%;
  background: rgba(5, 8, 12, 0.75);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
}

.nav-brand .mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(145deg, #0284c7, var(--accent));
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
}

.nav-links {
  display: none;
  gap: 1.75rem;
  font-size: 0.84rem;
  color: var(--muted);
}

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

@media (min-width: 768px) {
  .nav-links { display: flex; }
  .nav { padding: 0 2rem; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.15s, background 0.2s, box-shadow 0.2s;
  white-space: nowrap;
  cursor: pointer;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--accent);
  color: #031018;
  box-shadow: 0 0 24px var(--accent-glow);
}

.btn-primary:hover {
  background: #38bdf8;
  box-shadow: 0 0 32px var(--accent-glow);
}

.btn-ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.btn-ghost:hover { border-color: rgba(14, 165, 233, 0.45); }

.btn-lg {
  padding: 0.8rem 1.5rem;
  font-size: 0.92rem;
}

/* Hero */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100dvh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 1.5rem) 1.25rem 3rem;
}

.hero-inner {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-inner {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
  }
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 3.75rem);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

.accent-word {
  color: var(--accent);
  font-style: italic;
  font-weight: 700;
}

.lede {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 32rem;
  margin: 0 0 1.5rem;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-visual {
  position: relative;
  aspect-ratio: 1;
  max-width: 420px;
  margin: 0 auto;
  display: grid;
  place-items: center;
}

.orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--line);
}

.orbit-1 {
  width: 88%;
  height: 88%;
  animation: orbit-spin 24s linear infinite;
}

.orbit-2 {
  width: 62%;
  height: 62%;
  border-color: rgba(14, 165, 233, 0.2);
  animation: orbit-spin 18s linear infinite reverse;
}

.hero-glyph {
  font-family: var(--mono);
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 600;
  letter-spacing: 0.2em;
  color: rgba(14, 165, 233, 0.25);
  text-shadow: 0 0 60px var(--accent-glow);
}

@keyframes orbit-spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .orbit-1, .orbit-2 { animation: none; }
}

/* Fleet scroll stage */
.fleet-stage {
  position: relative;
  z-index: 2;
  height: 400vh;
}

.fleet-pin {
  position: relative;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: var(--bg-elevated);
  border-block: 1px solid var(--line);
}

.fleet-progress {
  position: absolute;
  top: var(--nav-h);
  left: 0;
  right: 0;
  height: 2px;
  background: var(--line);
  z-index: 10;
}

.fleet-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--ok));
  transform-origin: left;
}

.fleet-slide {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: center;
  padding: calc(var(--nav-h) + 2rem) 1.25rem 2rem;
  max-width: var(--max);
  margin: 0 auto;
  opacity: 0;
  pointer-events: none;
  will-change: transform, opacity;
}

.fleet-slide-spider {
  opacity: 1;
  pointer-events: auto;
}

@media (min-width: 900px) {
  .fleet-slide {
    grid-template-columns: 1fr 1.15fr;
    padding: calc(var(--nav-h) + 2rem) 2rem 2rem;
    gap: 2.5rem;
  }
}

.fleet-copy h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  line-height: 1.1;
}

.fleet-copy p {
  color: var(--muted);
  margin: 0 0 1.25rem;
  max-width: 38ch;
  font-size: 0.95rem;
}

.fleet-specs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.fleet-specs li {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.55rem 0.85rem;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  font-size: 0.78rem;
}

.fleet-specs span {
  font-family: var(--mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.fleet-specs strong {
  font-weight: 600;
  color: var(--text);
}

/* Sketchfab */
.sketchfab-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: radial-gradient(ellipse at 50% 40%, rgba(14, 165, 233, 0.08), var(--bg-card) 70%);
  box-shadow:
    0 24px 80px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.sketchfab-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

@media (min-width: 900px) {
  .sketchfab-wrap {
    aspect-ratio: 1;
    min-height: 420px;
  }
}

/* Command preview (slide 3) */
.fleet-slide-command {
  grid-template-columns: 1fr;
  text-align: left;
}

@media (min-width: 900px) {
  .fleet-slide-command {
    grid-template-columns: 1fr 1fr;
  }
}

.fleet-copy-wide p {
  max-width: 42ch;
}

.command-preview {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  background: linear-gradient(160deg, #0c1420, #060a0f);
  border: 1px solid var(--line);
  overflow: hidden;
}

.preview-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 28px;
  background: rgba(0, 0, 0, 0.4);
  border-bottom: 1px solid var(--line);
}

.preview-zone {
  position: absolute;
  top: 35%;
  left: 22%;
  width: 48%;
  height: 38%;
  background: rgba(245, 158, 11, 0.15);
  border: 2px solid rgba(251, 191, 36, 0.6);
  transform: rotate(-4deg);
  border-radius: 4px;
}

.preview-pin {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--alert);
  border: 2px solid #fecaca;
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.6);
}

.preview-pin.p1 { top: 48%; left: 35%; }
.preview-pin.p2 { top: 58%; left: 55%; }

.preview-unit {
  position: absolute;
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.55rem;
  font-weight: 600;
  text-transform: uppercase;
  background: rgba(7, 11, 16, 0.9);
  border: 1px solid var(--line);
}

.preview-unit.u1 {
  top: 42%;
  left: 40%;
  color: var(--accent);
  border-color: rgba(14, 165, 233, 0.4);
}

.preview-unit.u2 {
  top: 52%;
  left: 62%;
  color: var(--ok);
  border-color: rgba(34, 197, 94, 0.4);
}

/* Sections */
.section {
  position: relative;
  z-index: 1;
  padding: 5rem 1.25rem;
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section h2 {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 2rem;
  line-height: 1.15;
}

/* Problem */
.problem-section {
  background: var(--bg);
}

.problem-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .problem-grid {
    grid-template-columns: 1.2fr 1fr;
    grid-template-rows: auto auto;
  }
  .problem-card-featured {
    grid-row: span 2;
  }
}

.problem-card {
  padding: 1.5rem;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--line);
}

.problem-card-featured {
  background: linear-gradient(145deg, rgba(14, 165, 233, 0.1), var(--bg-card));
  border-color: rgba(14, 165, 233, 0.2);
}

.problem-num {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}

.problem-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.problem-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Solution */
.solution-section {
  background: var(--bg-elevated);
  border-block: 1px solid var(--line);
}

.solution-split {
  display: grid;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 900px) {
  .solution-split { grid-template-columns: 0.9fr 1.1fr; }
}

.solution-visual {
  position: relative;
  aspect-ratio: 1;
  max-width: 360px;
  margin: 0 auto;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.12), transparent 65%);
  border: 1px solid var(--line);
}

.solution-ring {
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1px dashed rgba(14, 165, 233, 0.35);
  animation: orbit-spin 30s linear infinite;
}

.solution-node {
  position: absolute;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 600;
  background: var(--bg-card);
  border: 1px solid var(--line);
}

.solution-node.n1 { top: 8%; left: 50%; transform: translateX(-50%); color: var(--accent); }
.solution-node.n2 { bottom: 18%; left: 12%; color: var(--muted); }
.solution-node.n3 { bottom: 18%; right: 12%; color: var(--muted); }
.solution-node.n4 { top: 50%; left: 50%; transform: translate(-50%, -50%); color: var(--alert); border-color: rgba(239, 68, 68, 0.4); }

.solution-body {
  color: var(--muted);
  margin: 0 0 1.5rem;
  max-width: 50ch;
}

.solution-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--line);
}

.step-idx {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(14, 165, 233, 0.15);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
}

.step strong {
  display: block;
  margin-bottom: 0.2rem;
  font-size: 0.92rem;
}

.step p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

/* Metrics */
.metrics-section {
  background: var(--bg);
}

.metrics-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .metrics-row { grid-template-columns: repeat(4, 1fr); }
}

.metric-tile {
  padding: 1.25rem;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--line);
  text-align: center;
}

.metric-val {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--mono);
  color: var(--accent);
}

.metric-lbl {
  display: block;
  font-size: 0.68rem;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-top: 0.25rem;
}

.metrics-note {
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 58ch;
  margin: 0;
}

/* Video */
.video-section {
  background: var(--bg-elevated);
  border-block: 1px solid var(--line);
  text-align: center;
}

.video-lead {
  color: var(--muted);
  margin: -1rem 0 1.5rem;
}

.video-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #000;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.5);
}

.video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* CTA */
.cta-section { padding-bottom: 6rem; }

.cta-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
  padding: 2.5rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.12), var(--bg-card));
  border: 1px solid rgba(14, 165, 233, 0.25);
}

@media (min-width: 640px) {
  .cta-panel {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.cta-panel h2 {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
}

.cta-panel p {
  margin: 0;
  color: var(--muted);
  max-width: 28rem;
}

/* Footer */
.footer {
  border-top: 1px solid var(--line);
  padding: 2rem 1.25rem;
  position: relative;
  z-index: 1;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: center;
  font-size: 0.82rem;
}

.footer-muted { color: var(--muted); }

.footer-links {
  margin-left: auto;
  display: flex;
  gap: 1.25rem;
}

.footer-links a:hover { color: var(--accent); }

/* Reduced motion: static fleet layout */
@media (prefers-reduced-motion: reduce) {
  .fleet-stage { height: auto; }
  .fleet-pin {
    height: auto;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    gap: 3rem;
    padding: calc(var(--nav-h) + 2rem) 1.25rem 3rem;
  }
  .fleet-slide {
    position: relative;
    opacity: 1 !important;
    pointer-events: auto !important;
    transform: none !important;
    padding: 0;
  }
  .fleet-progress { display: none; }
  .solution-ring { animation: none; }
}