:root {
  --bg: #ffffff;
  --bg-2: #f6f6f7;
  --ink: #08080a;
  --muted: #6f6f78;
  --hair: #e7e7ea;
  --accent: #0a84ff;
  --radius: 20px;
  --maxw: 1080px;
  --prose: 680px;
  --mono: ui-monospace, "SF Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #08080a;
    --bg-2: #101013;
    --ink: #f4f4f6;
    --muted: #9a9aa2;
    --hair: #232327;
    --accent: #2b95ff;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.prose { max-width: var(--prose); }

/* Type helpers */
.eyebrow {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  margin: 0 0 18px;
}
.mono { font-family: var(--mono); font-feature-settings: "tnum" 1; }

/* Header */
header {
  position: sticky; top: 0; z-index: 20;
  border-bottom: 1px solid var(--hair);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(180%) blur(24px);
  -webkit-backdrop-filter: saturate(180%) blur(24px);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 650; font-size: 18px; letter-spacing: -0.02em; color: var(--ink); text-decoration: none; }
.brand .mark {
  width: 27px; height: 27px; border-radius: 8px;
  background: var(--ink); color: var(--bg);
  display: grid; place-items: center; font-weight: 800; font-size: 15px;
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 15px; transition: color 0.15s ease; }
.nav-links a:hover { color: var(--ink); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 52px; padding: 0 26px; border-radius: 999px;
  font-size: 16px; font-weight: 600; text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: opacity 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { opacity: 0.88; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--hair); }
.btn-ghost:hover { border-color: var(--muted); }
.btn.disabled { background: var(--bg-2); color: var(--muted); cursor: default; border-color: var(--hair); }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* Hero */
.hero { padding: 96px 0 40px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.hero h1 {
  font-size: clamp(44px, 7vw, 82px);
  line-height: 0.98; letter-spacing: -0.045em; font-weight: 680;
  margin: 0 0 24px;
}
.hero .lede { font-size: clamp(18px, 2.2vw, 22px); color: var(--muted); max-width: 30ch; margin: 0 0 32px; }
.hero .meta { margin-top: 30px; font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.04em; color: var(--muted); text-transform: uppercase; }

/* Device mockup */
.device {
  position: relative; width: 300px; max-width: 82%; margin: 0 auto;
  border-radius: 46px; padding: 12px;
  background: linear-gradient(160deg, #d9d9de, #a9a9b2);
  box-shadow: 0 40px 80px -30px rgba(0,0,0,0.45), 0 4px 12px rgba(0,0,0,0.1);
}
@media (prefers-color-scheme: dark) { .device { background: linear-gradient(160deg, #2a2a30, #131317); } }
.screen {
  border-radius: 36px; overflow: hidden; background: var(--bg-2);
  aspect-ratio: 300 / 620; display: flex; flex-direction: column;
  border: 1px solid var(--hair);
}
.screen-status { display: flex; justify-content: space-between; align-items: center; padding: 14px 20px 6px; font-family: var(--mono); font-size: 12px; color: var(--ink); }
.screen-hero {
  margin: 8px 14px 0; border-radius: 18px; height: 190px; position: relative; overflow: hidden;
  background: linear-gradient(150deg, #1c2733 0%, #0a84ff 55%, #063a6b 100%);
}
.screen-hero .tag { position: absolute; top: 14px; left: 16px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; color: rgba(255,255,255,0.82); text-transform: uppercase; }
.screen-hero .pct { position: absolute; left: 16px; bottom: 12px; color: #fff; font-size: 46px; font-weight: 700; letter-spacing: -0.03em; line-height: 1; }
.screen-hero .pct small { display:block; font-family: var(--mono); font-size: 10px; font-weight: 500; letter-spacing: 0.14em; opacity: 0.85; text-transform: uppercase; margin-top: 4px; }
.statline { padding: 6px 20px 18px; }
.statline .row { display: flex; justify-content: space-between; align-items: baseline; padding: 12px 0; border-bottom: 1px solid var(--hair); }
.statline .row:last-child { border-bottom: 0; }
.statline .k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.statline .v { font-family: var(--mono); font-size: 15px; color: var(--ink); }

/* Section rhythm */
.section { padding: 92px 0; }
.section.alt { background: var(--bg-2); border-top: 1px solid var(--hair); border-bottom: 1px solid var(--hair); }
.section-head { max-width: 640px; margin: 0 0 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(30px, 4.6vw, 48px); letter-spacing: -0.035em; line-height: 1.04; font-weight: 660; margin: 0 0 16px; }
.section-head p { color: var(--muted); font-size: 19px; margin: 0; }

/* Data cards (drives / charges — the Flighty "flight card" analogue) */
.datacards { display: grid; gap: 14px; }
.datacard {
  display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 20px;
  background: var(--bg); border: 1px solid var(--hair); border-radius: 16px; padding: 20px 22px;
}
.section.alt .datacard { background: var(--bg); }
.datacard .route { font-size: 19px; font-weight: 600; letter-spacing: -0.01em; }
.datacard .sub { font-family: var(--mono); font-size: 12.5px; color: var(--muted); margin-top: 5px; letter-spacing: 0.02em; }
.datacard .stat { text-align: right; }
.datacard .stat .big { font-family: var(--mono); font-size: 19px; font-weight: 600; letter-spacing: -0.01em; }
.datacard .stat .lbl { font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin-top: 4px; }
.chip { display: inline-block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--hair)); border-radius: 999px; padding: 3px 9px; margin-top: 8px; }

/* Feature rows (alternating editorial) */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 8px 0; }
.feature + .feature { margin-top: 30px; }
.feature h3 { font-size: clamp(24px, 3.2vw, 34px); letter-spacing: -0.03em; line-height: 1.08; margin: 0 0 14px; font-weight: 640; }
.feature p { color: var(--muted); font-size: 18px; margin: 0 0 20px; }
.feature .metrics { display: flex; gap: 34px; flex-wrap: wrap; }
.feature .metric .n { font-family: var(--mono); font-size: 26px; font-weight: 600; letter-spacing: -0.02em; }
.feature .metric .l { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-top: 3px; }
.feature.reverse .visual { order: -1; }
.visual {
  border-radius: var(--radius); border: 1px solid var(--hair); min-height: 300px;
  background: var(--bg-2); position: relative; overflow: hidden;
}
.visual .fill { position: absolute; inset: 0; }

/* Compact feature list (no emoji soup — clean typographic list) */
.flist { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 48px; }
.flist li { border-top: 1px solid var(--hair); padding: 22px 0; }
.flist li b { display: block; font-size: 18px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 5px; }
.flist li span { color: var(--muted); font-size: 15.5px; }

/* Cinematic dark block (live charging) */
.cinema { background: #0a0a0c; color: #f4f4f6; border-radius: 28px; padding: 64px; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.cinema .eyebrow { color: #2b95ff; }
.cinema h2 { font-size: clamp(28px, 4vw, 42px); letter-spacing: -0.035em; line-height: 1.05; margin: 0 0 16px; font-weight: 660; }
.cinema p { color: #9a9aa2; margin: 0 0 12px; font-size: 18px; }
.ring { aspect-ratio: 1; max-width: 260px; margin: 0 auto; border-radius: 50%; position: relative; background: conic-gradient(#2b95ff 0% 78%, #26262a 78% 100%); display: grid; place-items: center; }
.ring::before { content: ""; position: absolute; inset: 26px; border-radius: 50%; background: #0a0a0c; }
.ring .lbl { position: relative; text-align: center; }
.ring .lbl .n { font-size: 52px; font-weight: 700; letter-spacing: -0.03em; }
.ring .lbl .u { font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: #9a9aa2; margin-top: 6px; }

/* Pricing */
.pricing { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.price-card { background: var(--bg); border: 1px solid var(--hair); border-radius: 22px; padding: 34px; display: flex; flex-direction: column; }
.price-card.featured { border-color: var(--ink); }
.section.alt .price-card { background: var(--bg); }
.price-card .name { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.price-card h3 { margin: 0; font-size: 18px; font-weight: 600; }
.price-card .tag { font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--bg); background: var(--ink); border-radius: 999px; padding: 4px 10px; }
.price { font-family: var(--mono); font-size: 42px; font-weight: 600; letter-spacing: -0.04em; margin: 0 0 4px; }
.price small { font-family: var(--sans); font-size: 15px; font-weight: 500; color: var(--muted); letter-spacing: 0; }
.price-note { color: var(--muted); font-size: 14px; margin: 0 0 26px; }
.checklist { list-style: none; padding: 0; margin: 0 0 26px; flex: 1; }
.checklist li { position: relative; padding-left: 26px; margin-bottom: 13px; font-size: 15.5px; }
.checklist li::before { content: ""; position: absolute; left: 2px; top: 8px; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); }

/* Privacy statement */
.statement { max-width: 780px; }
.statement p.big { font-size: clamp(24px, 3.4vw, 36px); letter-spacing: -0.03em; line-height: 1.22; font-weight: 560; margin: 0 0 28px; }
.statement p.big b { color: var(--ink); }
.statement .lines { border-top: 1px solid var(--hair); }
.statement .lines div { border-bottom: 1px solid var(--hair); padding: 20px 0; display: grid; grid-template-columns: 200px 1fr; gap: 24px; }
.statement .lines .t { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); padding-top: 3px; }
.statement .lines .d { color: var(--ink); font-size: 16.5px; }

/* Steps */
.steps { list-style: none; counter-reset: step; padding: 0; margin: 0; max-width: 720px; }
.steps li { position: relative; counter-increment: step; padding: 0 0 30px 60px; }
.steps li::before { content: counter(step, decimal-leading-zero); position: absolute; left: 0; top: 0; font-family: var(--mono); font-size: 13px; color: var(--accent); padding-top: 4px; letter-spacing: 0.05em; }
.steps li::after { content: ""; position: absolute; left: 5px; top: 26px; bottom: 6px; width: 1px; background: var(--hair); }
.steps li:last-child::after { display: none; }
.steps h4 { margin: 0 0 6px; font-size: 18px; font-weight: 600; }
.steps p { margin: 0; color: var(--muted); font-size: 16px; }
.steps code, .legal code, .faq code { font-family: var(--mono); background: var(--bg-2); border: 1px solid var(--hair); border-radius: 6px; padding: 1px 6px; font-size: 13px; }

/* FAQ */
.faq { max-width: 780px; }
.faq details { border-top: 1px solid var(--hair); }
.faq details:last-of-type { border-bottom: 1px solid var(--hair); }
.faq summary { cursor: pointer; list-style: none; padding: 22px 4px; font-weight: 600; font-size: 18px; letter-spacing: -0.01em; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--muted); font-size: 22px; font-weight: 400; transition: transform 0.2s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 4px 22px; color: var(--muted); font-size: 16.5px; }
.faq details p a { color: var(--accent); }

/* Legal / article */
.legal { padding: 64px 0 24px; max-width: var(--prose); }
.legal h1 { font-size: clamp(32px, 5vw, 44px); letter-spacing: -0.035em; margin: 0 0 8px; font-weight: 660; }
.legal .updated { font-family: var(--mono); color: var(--muted); font-size: 13px; margin: 0 0 44px; }
.legal h2 { font-size: 22px; letter-spacing: -0.02em; margin: 42px 0 12px; font-weight: 640; }
.legal p, .legal li { color: var(--ink); }
.legal p { margin: 0 0 16px; }
.legal ul { padding-left: 22px; margin: 0 0 16px; }
.legal li { margin-bottom: 8px; }
.legal a { color: var(--accent); }
.callout { background: var(--bg-2); border: 1px solid var(--hair); border-radius: 16px; padding: 22px 24px; margin: 0 0 30px; }
.callout p { margin: 0; color: var(--muted); font-size: 16px; }

/* Footer */
footer { border-top: 1px solid var(--hair); padding: 48px 0; margin-top: 20px; }
.foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; color: var(--muted); font-size: 14px; }
.foot .foot-links { display: flex; flex-wrap: wrap; gap: 24px; }
.foot a { color: var(--muted); text-decoration: none; }
.foot a:hover { color: var(--ink); }
.disclaimer { color: var(--muted); font-size: 12.5px; margin-top: 26px; max-width: 640px; line-height: 1.5; }

/* Utility */
.center { text-align: center; }
.pills { display: flex; flex-wrap: wrap; gap: 10px; }
.pill { font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em; color: var(--muted); border: 1px solid var(--hair); border-radius: 999px; padding: 7px 14px; text-transform: uppercase; }
.pill.on { color: var(--ink); }

@media (max-width: 860px) {
  .hero { padding: 60px 0 20px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero .device { margin-top: 8px; }
  .feature, .cinema, .pricing, .statement .lines div { grid-template-columns: 1fr; }
  .cinema { padding: 40px 28px; gap: 32px; }
  .feature.reverse .visual { order: 0; }
  .flist { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
}