/* ---------- Tokens ---------- */
:root {
  --bg: #0A0E14;
  --bg-elev: #0E141C;
  --surface: #11161F;
  --surface-2: #161D28;
  --border: #1F2733;
  --border-strong: #2A3445;

  --fg: #E6EAF2;
  --fg-muted: #8A95A8;
  --fg-dim: #5A6577;

  --accent: #5EEAD4;
  --accent-strong: #2DD4BF;
  --accent-glow: rgba(94, 234, 212, 0.18);
  --warn: #F59E0B;

  --radius: 14px;
  --radius-sm: 8px;
  --maxw: 1200px;
  --maxw-narrow: 760px;

  --t-fast: 160ms cubic-bezier(.4,0,.2,1);
  --t: 280ms cubic-bezier(.4,0,.2,1);

  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

/* ---------- Reset-ish ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #04181A;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: clamp(1.25rem, 4vw, 2rem);
}
.container.narrow { max-width: var(--maxw-narrow); }

.section {
  padding-block: clamp(4.5rem, 10vw, 8rem);
  position: relative;
}

.section-head {
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
  max-width: 760px;
}
.section-head h2 { margin-top: 0.4rem; }
.section-sub {
  color: var(--fg-muted);
  font-size: 1.05rem;
  margin: 0.6rem 0 0;
}

.section-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
}

h1, h2, h3 {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--fg);
  margin: 0;
}
h2 { font-size: clamp(1.85rem, 3.4vw, 2.75rem); }
h3 { font-size: 1.18rem; letter-spacing: -0.01em; }
p { margin: 0 0 1rem; }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 1rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand-mark { color: var(--accent); display: inline-flex; }
.brand-name { font-size: 1.02rem; }
.brand-accent { color: var(--accent); font-weight: 600; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  font-size: 0.95rem;
}
.nav-menu a:not(.btn) {
  color: var(--fg-muted);
  transition: color var(--t-fast);
}
.nav-menu a:not(.btn):hover { color: var(--fg); }
.nav-cta { margin-left: 0.4rem; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 40px;
  height: 40px;
  padding: 0;
  position: relative;
}
.nav-toggle span {
  display: block;
  position: absolute;
  left: 9px; right: 9px;
  height: 2px;
  background: var(--fg);
  transition: transform var(--t), opacity var(--t);
}
.nav-toggle span:nth-child(1) { top: 13px; }
.nav-toggle span:nth-child(2) { top: 19px; }
.nav-toggle span:nth-child(3) { top: 25px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav-menu {
    position: absolute;
    inset: 64px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 1.25rem 1.25rem;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--t), opacity var(--t);
  }
  .nav-menu.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-menu a:not(.btn) {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--border);
  }
  .nav-cta { margin: 1rem 0 0; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.78rem 1.15rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent);
  color: #04181A;
  box-shadow: 0 0 0 0 var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-strong);
  box-shadow: 0 6px 28px var(--accent-glow);
}
.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-block: clamp(5rem, 12vw, 9rem) clamp(4rem, 8vw, 7rem);
  overflow: hidden;
  isolation: isolate;
}
.hero-grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(1100px 540px at 80% -10%, var(--accent-glow), transparent 60%),
    radial-gradient(900px 480px at -10% 110%, rgba(45, 212, 191, 0.10), transparent 60%),
    linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: auto, auto, 56px 56px, 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 50%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 50%, transparent 100%);
}
.hero-inner { position: relative; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.42rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1.6rem;
}
.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.hero-title {
  font-size: clamp(2.4rem, 5.6vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.02;
  margin: 0 0 1.4rem;
  max-width: 18ch;
}
.hero-title .accent {
  color: var(--accent);
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-strong) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  color: var(--fg-muted);
  max-width: 60ch;
  margin: 0 0 2rem;
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 1rem 1.5rem;
  max-width: 720px;
  margin: 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.hero-stats > div { min-width: 0; }
.hero-stats dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 0.3rem;
}
.hero-stats dd {
  margin: 0;
  font-weight: 600;
  color: var(--fg);
  font-size: 0.98rem;
}

@media (max-width: 560px) {
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 0.9rem;
  }
}

/* ---------- Problem ---------- */
.problem .lede {
  font-size: 1.18rem;
  color: var(--fg);
  margin-top: 1rem;
}
.problem p { color: var(--fg-muted); }

/* ---------- How / steps ---------- */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 1.25rem;
  counter-reset: step;
}
.step {
  position: relative;
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-elev) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem 1.4rem 1.5rem;
  transition: border-color var(--t-fast), transform var(--t-fast), background var(--t-fast);
}
.step:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.step-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.08em;
}
.step-icon {
  margin: 1rem 0 1.25rem;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(94, 234, 212, 0.07);
  border: 1px solid rgba(94, 234, 212, 0.22);
  color: var(--accent);
}
.step-icon svg { width: 30px; height: 30px; }
.step h3 { margin-bottom: 0.4rem; }
.step p { color: var(--fg-muted); margin: 0; font-size: 0.97rem; }

@media (max-width: 920px) {
  .steps { grid-template-columns: 1fr; }
}

/* ---------- Benefits ---------- */
.benefits-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 1.25rem;
}
.benefit {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.5rem;
  transition: border-color var(--t-fast), transform var(--t-fast);
}
.benefit:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.benefit h3 { margin: 0 0 0.5rem; }
.benefit p { color: var(--fg-muted); margin: 0; }
.benefit-lead {
  grid-row: span 2;
  background:
    radial-gradient(800px 320px at -10% -20%, var(--accent-glow), transparent 60%),
    var(--surface-2);
  border-color: rgba(94, 234, 212, 0.22);
  padding: 2rem 1.8rem;
}
.benefit-lead h3 {
  font-size: clamp(1.25rem, 2.4vw, 1.6rem);
  letter-spacing: -0.02em;
}
.benefit-lead p {
  color: var(--fg);
  font-size: 1.02rem;
  margin-bottom: 1.25rem;
}
.benefit-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}
.benefit-list li {
  position: relative;
  padding-left: 1.4rem;
  color: var(--fg-muted);
  font-size: 0.97rem;
}
.benefit-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55rem;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

@media (max-width: 920px) {
  .benefits-grid {
    grid-template-columns: 1fr;
  }
  .benefit-lead { grid-row: auto; }
}

/* ---------- Trust strip ---------- */
.trust {
  padding-block: clamp(2rem, 4vw, 3rem);
  border-block: 1px solid var(--border);
  background: var(--bg-elev);
}
.trust-inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  justify-content: center;
  text-align: center;
}
.badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(94, 234, 212, 0.08);
  border: 1px solid rgba(94, 234, 212, 0.3);
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
}
.trust-line {
  margin: 0;
  color: var(--fg-muted);
  font-size: 1rem;
}

/* ---------- Form ---------- */
.contact { background: var(--bg-elev); }
.form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 1rem 1.25rem;
  max-width: 760px;
}
.field { display: flex; flex-direction: column; gap: 0.45rem; }
.field-full { grid-column: 1 / -1; }
.field label {
  font-size: 0.85rem;
  color: var(--fg-muted);
  font-weight: 500;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--surface);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.78rem 0.9rem;
  font: inherit;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--surface-2);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-actions {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}
.form-note { margin: 0; color: var(--fg-dim); font-size: 0.85rem; }
.form-status {
  grid-column: 1 / -1;
  min-height: 1.2rem;
  font-size: 0.95rem;
}
.form-status.is-success { color: var(--accent); }
.form-status.is-error { color: var(--warn); }

.hp { position: absolute; left: -10000px; opacity: 0; pointer-events: none; }

@media (max-width: 720px) {
  .form { grid-template-columns: 1fr; }
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 2.5rem;
  background: var(--bg);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-brand { display: inline-flex; align-items: center; gap: 0.5rem; }
.footer-tag { color: var(--fg-muted); margin: 0; font-size: 0.95rem; }
.footer-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--fg-muted);
  font-size: 0.9rem;
  flex-wrap: wrap;
}
.footer-meta a:hover { color: var(--accent); }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 600ms ease, transform 600ms ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Demo teaser ---------- */
.demo-teaser { background: var(--bg-elev); }
.demo-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.75rem, 4vw, 3rem);
  overflow: hidden;
  position: relative;
}
.demo-card::before {
  content: '';
  position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(600px 300px at 80% 50%, var(--accent-glow), transparent 70%);
  pointer-events: none;
}
.demo-card-left { position: relative; z-index: 1; }
.demo-card-left h2 { margin: 0.4rem 0 0.75rem; }
.demo-card-left p { color: var(--fg-muted); font-size: 1rem; line-height: 1.6; }

.demo-card-right { position: relative; z-index: 1; }
.demo-viz {
  position: relative;
  height: 260px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.demo-viz-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
}
.demo-rack {
  position: absolute; top: 20px;
  left: 50%; transform: translateX(-50%);
  width: 180px; height: 48px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.6rem; letter-spacing: 0.1em;
  color: var(--fg-dim);
  display: grid; place-items: center;
}
.demo-arm {
  position: absolute;
  top: 54px; left: calc(50% - 8px);
  width: 16px; height: 110px;
  transform-origin: 8px 8px;
  animation: demoArmSweep 4s ease-in-out infinite;
}
@keyframes demoArmSweep {
  0%,100% { transform: rotate(-60deg); }
  50%      { transform: rotate(0deg); }
}
.demo-arm-boom {
  position: absolute; top: 14px; left: 3px;
  width: 10px; height: 82px;
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
  border-radius: 5px;
  box-shadow: 0 0 8px var(--accent-glow);
}
.demo-arm-nozzle {
  position: absolute; top: 94px; left: 50%;
  transform: translateX(-50%);
  width: 16px; height: 16px;
  background: radial-gradient(circle, #22C55E, #15803D);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(34,197,94,0.7);
  animation: demoNozzle 4s ease-in-out infinite;
}
@keyframes demoNozzle {
  0%,40%,100% { box-shadow: 0 0 12px rgba(34,197,94,0.4); }
  50%,60%     { box-shadow: 0 0 20px rgba(34,197,94,0.9), 0 0 36px rgba(34,197,94,0.4); }
}
.demo-bay {
  position: absolute;
  bottom: 28px; left: 50%; transform: translateX(-50%);
  width: 160px; height: 52px;
  background: var(--surface-2);
  border: 1px dashed rgba(94,234,212,0.2);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
}
.demo-hatch {
  width: 24px; height: 24px;
  background: radial-gradient(circle, #2A3445, #1F2733);
  border-radius: 50%;
  border: 2px solid var(--border-strong);
  animation: demoHatch 4s ease-in-out infinite;
}
@keyframes demoHatch {
  0%,40%,100% { border-color: var(--border-strong); box-shadow: none; }
  50%,70%     { border-color: #22C55E; box-shadow: 0 0 14px rgba(34,197,94,0.7); background: radial-gradient(circle, #22C55E, #15803D); }
}
.demo-bay-label {
  position: absolute; bottom: -18px;
  left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.6rem; letter-spacing: 0.1em;
  color: var(--fg-dim); white-space: nowrap;
}
.demo-scan {
  position: absolute; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  animation: demoScan 3s linear infinite;
  opacity: 0.5;
}
@keyframes demoScan {
  0%   { top: 0; }
  100% { top: 100%; }
}

@media (max-width: 860px) {
  .demo-card { grid-template-columns: 1fr; }
  .demo-card-right { display: none; }
}

/* ---------- Reveal animation ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}