/* LiDAR Photo — website styles, "blueprint" theme: plan-blue paper, grid, white line work,
   yellow dimension lines. One stylesheet, system fonts only, no dependencies. */

:root {
  --paper: #0f3a6e;
  --paper-deep: #0b2d57;
  --grid-minor: rgba(214, 233, 255, 0.07);
  --grid-major: rgba(214, 233, 255, 0.14);
  --ink: #eaf3ff;
  --ink-soft: #b9d3f2;
  --ink-dim: #86a9d3;
  --line: rgba(214, 233, 255, 0.28);
  --line-soft: rgba(214, 233, 255, 0.16);
  --yellow: #ffd23f;
  --cyan: #8fdcff;
  --max: 1120px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  font: 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  background-color: var(--paper);
  /* Blueprint paper: fine 20 px grid, stronger 100 px grid, soft light from the top. */
  background-image:
    radial-gradient(1200px 800px at 50% -10%, rgba(255, 255, 255, 0.07), transparent 70%),
    linear-gradient(var(--grid-major) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-major) 1px, transparent 1px),
    linear-gradient(var(--grid-minor) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-minor) 1px, transparent 1px);
  background-size: auto, 100px 100px, 100px 100px, 20px 20px, 20px 20px;
  background-position: center top;
}

a { color: var(--yellow); text-decoration: none; }
a:hover { text-decoration: underline; }

img, svg { display: block; max-width: 100%; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

.eyebrow, .fig, .chip, .tag, .figure small, .requirement { font-family: var(--mono); }

/* ---------- Navigation ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 45, 87, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 62px; }

.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 700; font-size: 18px; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.brand img { width: 32px; height: 32px; border-radius: 8px; outline: 1px solid var(--line); }

.nav-links { display: flex; gap: 24px; font: 12.5px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.08em; }
.nav-links a { color: var(--ink-soft); }
.nav-links a:hover { color: var(--ink); text-decoration: none; }

@media (max-width: 760px) {
  .nav-links .optional { display: none; }
  .nav-links { gap: 16px; }
}

/* ---------- Buttons and labels ---------- */

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border-radius: 3px;
  font: 600 13.5px/1.2 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.button:hover { text-decoration: none; }
.button.primary { background: var(--yellow); color: #13213a; box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.25); }
.button.ghost { border: 1px solid var(--ink-soft); color: var(--ink); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--yellow);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--yellow); }

/* ---------- Hero ---------- */

.hero { padding: 76px 0 84px; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }

.hero h1 { font-size: clamp(44px, 6.6vw, 80px); line-height: 1.0; letter-spacing: -0.035em; margin: 0 0 22px; }
.hero h1 em { font-style: normal; color: var(--yellow); }
.hero .lead { font-size: clamp(18px, 2.1vw, 21px); color: var(--ink-soft); max-width: 560px; margin: 0 0 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.requirement { margin-top: 22px; color: var(--ink-dim); font-size: 12.5px; line-height: 1.6; }

.device { width: min(540px, 100%); margin: 0 auto; }

@media (max-width: 880px) {
  .hero { padding-top: 48px; }
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
}

/* ---------- Key figures, drawn like a title block ---------- */

.figures { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); background: rgba(11, 45, 87, 0.55); }
.figure { padding: 24px 20px; border-right: 1px solid var(--line); }
.figure:last-child { border-right: none; }
.figure small { display: block; color: var(--ink-dim); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 10px; }
.figure strong { display: block; font-size: 30px; letter-spacing: -0.02em; }
.figure span { color: var(--ink-soft); font-size: 14px; }

@media (max-width: 760px) {
  .figures { grid-template-columns: repeat(2, 1fr); }
  .figure:nth-child(2) { border-right: none; }
  .figure:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

/* ---------- Sections ---------- */

section { padding: 96px 0; }
section.tight { padding: 72px 0; }

.section-head { max-width: 740px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow::after { content: ""; width: 26px; height: 1px; background: var(--yellow); }

h2 { font-size: clamp(32px, 4.4vw, 50px); line-height: 1.08; letter-spacing: -0.03em; margin: 0 0 18px; }
.section-head p { color: var(--ink-soft); font-size: 19px; margin: 0; }

/* ---------- Drawing sheets (framed illustrations) ---------- */

.sheet { position: relative; border: 1px solid var(--line); background: rgba(11, 45, 87, 0.5); padding: 22px 22px 48px; }
/* Registration marks in two corners. */
.sheet::before, .sheet::after { content: ""; position: absolute; width: 16px; height: 16px; border-color: var(--yellow); border-style: solid; }
.sheet::before { top: -1px; left: -1px; border-width: 2px 0 0 2px; }
.sheet::after { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; }

.fig {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 15px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--ink-dim);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.shot { display: block; width: 100%; border: 1px solid var(--line); border-radius: 18px; background: #000; }

/* ---------- Story rows ---------- */

.story { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; margin-bottom: 104px; }
.story:last-child { margin-bottom: 0; }
.story.reverse .story-visual { order: 2; }
.story h3 { font-size: clamp(26px, 3.2vw, 36px); line-height: 1.12; letter-spacing: -0.02em; margin: 0 0 16px; }
.story p { color: var(--ink-soft); margin: 0 0 14px; }

.checks { list-style: none; padding: 0; margin: 22px 0 0; }
.checks li { position: relative; padding-left: 28px; margin-bottom: 10px; }
.checks li::before { content: ""; position: absolute; left: 2px; top: 8px; width: 10px; height: 10px; border: 1.5px solid var(--yellow); transform: rotate(45deg); }

@media (max-width: 880px) {
  .story { grid-template-columns: 1fr; gap: 30px; margin-bottom: 76px; }
  .story.reverse .story-visual { order: 0; }
}

/* ---------- Feature grid ---------- */

.grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.card { position: relative; padding: 28px 26px 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(11, 45, 87, 0.35); }
.card .tag { position: absolute; top: 14px; right: 16px; color: var(--ink-dim); font-size: 11px; letter-spacing: 0.12em; }
.card .icon { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--yellow); color: var(--yellow); margin-bottom: 18px; }
.card .icon svg { width: 24px; height: 24px; }
.card h4 { margin: 0 0 8px; font-size: 19px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--ink-soft); font-size: 15.5px; }

@media (max-width: 960px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid { grid-template-columns: 1fr; } }

/* ---------- AI band ---------- */

.ai-band { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; padding: 56px; border: 1px solid var(--yellow); background: rgba(11, 45, 87, 0.6); }
.ai-band h2 { margin-bottom: 18px; }
.ai-band p { color: var(--ink-soft); margin: 0 0 14px; }
.ai-band em { color: var(--ink); }
@media (max-width: 900px) { .ai-band { grid-template-columns: 1fr; padding: 32px 22px; } }

/* ---------- Real screens ---------- */

.screens { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px 24px; max-width: 960px; margin: 0 auto; }
.screens figure { margin: 0; }
.screens figcaption { margin-top: 10px; color: var(--ink-dim); font: 11px/1.5 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; }
@media (max-width: 900px) { .screens { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Steps ---------- */

.steps { display: grid; grid-template-columns: repeat(3, 1fr); counter-reset: step; border: 1px solid var(--line); }
.step { padding: 30px 26px; border-right: 1px solid var(--line); background: rgba(11, 45, 87, 0.35); }
.step:last-child { border-right: none; }
.step::before { counter-increment: step; content: "STEP 0" counter(step); display: block; color: var(--yellow); font: 600 12px/1 var(--mono); letter-spacing: 0.14em; margin-bottom: 18px; }
.step h4 { margin: 0 0 8px; font-size: 21px; }
.step p { margin: 0; color: var(--ink-soft); }
@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr; }
  .step { border-right: none; border-bottom: 1px solid var(--line); }
  .step:last-child { border-bottom: none; }
}

/* ---------- Trades ---------- */

.chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.chip { padding: 9px 16px; border: 1px solid var(--line); color: var(--ink); font-size: 13px; letter-spacing: 0.03em; background: rgba(11, 45, 87, 0.45); }

/* ---------- Privacy band ---------- */

.privacy-band { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; padding: 52px; border: 1px solid var(--line); background: rgba(11, 45, 87, 0.55); }
.privacy-band p { color: var(--ink-soft); margin: 0 0 18px; }
.privacy-list { display: grid; border: 1px solid var(--line); }
.privacy-list div { display: flex; gap: 12px; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line-soft); }
.privacy-list div:last-child { border-bottom: none; }
.privacy-list b { color: var(--yellow); font-family: var(--mono); }
@media (max-width: 860px) { .privacy-band { grid-template-columns: 1fr; padding: 30px 22px; } }

/* ---------- FAQ ---------- */

.faq { max-width: 820px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); padding: 20px 4px; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 18px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--yellow); font: 22px/1 var(--mono); }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--ink-soft); margin: 12px 0 0; }

/* ---------- Final call ---------- */

.final { text-align: center; padding: 104px 0 112px; }
.final h2 { font-size: clamp(36px, 5.4vw, 60px); }
.final p { color: var(--ink-soft); font-size: 19px; margin: 0 auto 32px; max-width: 600px; }
.final img { width: 96px; height: 96px; border-radius: 22px; margin: 0 auto 28px; outline: 1px dashed var(--line); outline-offset: 12px; }

/* ---------- Footer, drawn as a title block ---------- */

footer { padding: 40px 0 56px; }
.title-block { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; border: 1px solid var(--line); background: rgba(11, 45, 87, 0.6); font: 12px/1.6 var(--mono); color: var(--ink-soft); }
.title-block > div { padding: 14px 16px; border-right: 1px solid var(--line); }
.title-block > div:last-child { border-right: none; }
.title-block small { display: block; color: var(--ink-dim); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 4px; }
.title-block strong { color: var(--ink); font: 700 15px/1.4 var(--sans); }
.title-block nav { display: flex; flex-direction: column; }
.title-block a { color: var(--ink); }
footer .trademarks { margin-top: 14px; font: 11px/1.6 var(--mono); color: var(--ink-dim); }
@media (max-width: 760px) {
  .title-block { grid-template-columns: 1fr 1fr; }
  .title-block > div { border-bottom: 1px solid var(--line); }
  .title-block > div:nth-child(2n) { border-right: none; }
}

/* ---------- Text pages (privacy, support, legal) ---------- */

.page { max-width: 800px; margin: 0 auto; padding: 64px 20px 32px; }
.page h1 { font-size: clamp(36px, 5vw, 54px); letter-spacing: -0.03em; line-height: 1.06; margin: 0 0 10px; }
.page .updated { color: var(--ink-dim); font: 12.5px/1.5 var(--mono); margin: 0 0 36px; }
.page h2 { font-size: 26px; letter-spacing: -0.01em; margin: 48px 0 12px; padding-bottom: 8px; border-bottom: 1px solid var(--line-soft); }
.page h3 { font-size: 19px; margin: 28px 0 6px; }
.page p, .page li { color: var(--ink-soft); }
.page strong { color: var(--ink); }
.page ul { padding-left: 22px; }
.page .summary, .contact-card { border: 1px solid var(--line); border-left: 3px solid var(--yellow); background: rgba(11, 45, 87, 0.6); padding: 22px 24px; margin: 24px 0 8px; }
.contact-card p { margin: 0 0 18px; }
.page hr { border: none; border-top: 1px dashed var(--line); margin: 48px 0; }
.page section { padding: 0; }

/* ---------- Motion ---------- */

@media (prefers-reduced-motion: no-preference) {
  .hero h1, .hero .lead, .hero-actions, .device { animation: rise 0.9s cubic-bezier(.2, .7, .2, 1) both; }
  .hero .lead { animation-delay: 0.08s; }
  .hero-actions { animation-delay: 0.16s; }
  .device { animation-delay: 0.22s; }
  .scan { animation: scan 4.5s ease-in-out infinite; }
  .pulse { animation: pulse 2.4s ease-in-out infinite; transform-origin: center; transform-box: fill-box; }
}

@keyframes rise { from { transform: translateY(18px); } to { transform: none; } }
@keyframes scan { 0%, 100% { transform: translateY(0); opacity: 0; } 15%, 85% { opacity: 0.9; } 50% { transform: translateY(330px); } }
@keyframes pulse { 0%, 100% { opacity: 0.4; transform: scale(1); } 50% { opacity: 1; transform: scale(1.3); } }