:root {
  color-scheme: dark;
  --bg: #070707;
  --bg-soft: #0f1012;
  --panel: #17181b;
  --panel-2: #202126;
  --line: #34363d;
  --text: #f7f7f8;
  --muted: #b0b1b8;
  --orange: #ff9228;
  --orange-2: #f27f10;
  --orange-soft: #3f230e;
  --green: #33d563;
  --max: 1180px;
  --radius: 22px;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.58; }
a { color: inherit; }
img { max-width: 100%; display: block; }
button, input { font: inherit; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 1000; padding: 10px 14px; background: var(--orange); color: #111; border-radius: 10px; font-weight: 700; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 100; min-height: 72px; display: flex; align-items: center; gap: 24px; padding: 10px max(18px, env(safe-area-inset-left)); background: rgba(7,7,7,.88); backdrop-filter: blur(20px); border-bottom: 1px solid rgba(255,255,255,.08); }
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; margin-right: auto; }
.brand img { border-radius: 11px; }
.brand span { display: grid; line-height: 1.1; }
.brand strong { font-size: 1rem; }
.brand small { margin-top: 4px; color: var(--muted); font-size: .76rem; }
.primary-nav { display: flex; align-items: center; gap: 6px; }
.primary-nav a { padding: 9px 11px; border-radius: 10px; text-decoration: none; color: #d8d8dd; font-size: .9rem; }
.primary-nav a:hover, .primary-nav a:focus-visible { background: var(--panel); color: var(--orange); outline: none; }
.primary-nav a.contact-link { color: var(--orange); }
.primary-nav a.contact-link:hover, .primary-nav a.contact-link:focus-visible { color: var(--orange); }
.header-app-link { flex: 0 0 auto; display: inline-flex; align-items: center; justify-content: center; gap: 4px; padding: 9px 13px; border-radius: 11px; background: var(--orange); color: #111; text-decoration: none; font-weight: 850; white-space: nowrap; box-shadow: 0 0 0 1px rgba(255,145,31,.18), 0 5px 18px rgba(255,145,31,.16); }
.header-app-link:hover, .header-app-link:focus-visible { background: #ffa13f; color: #111; outline: none; transform: translateY(-1px); }
.nav-toggle { display: none; border: 1px solid var(--line); background: var(--panel); color: var(--text); border-radius: 10px; padding: 8px 12px; }
main { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
.hero { min-height: 620px; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr); align-items: center; gap: 70px; padding: 62px 24px 44px; }
.hero-copy { max-width: 720px; }
.eyebrow { display: inline-block; color: var(--orange); font-size: .86rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 14px; }
h1 { margin: 0; font-size: clamp(2.4rem, 6vw, 5rem); line-height: .98; letter-spacing: -.045em; max-width: 12ch; }
.hero-lead { color: #c5c6cc; font-size: clamp(1.05rem, 2vw, 1.3rem); max-width: 65ch; margin: 26px 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; text-decoration: none; align-items: center; justify-content: center; min-height: 48px; padding: 0 18px; border-radius: 14px; font-weight: 750; }
.button.primary { background: var(--orange); color: #111; }
.button.secondary { border: 1px solid #5b3b22; background: #1c120b; color: var(--orange); }
.version-pill { display: inline-flex; margin-top: 20px; padding: 6px 11px; border-radius: 999px; background: #17120e; border: 1px solid #4b2d15; color: #d9b28c; font-size: .8rem; }
.phone-shot { margin: 0 auto; width: min(100%, 340px); }
.phone-shot img { border-radius: 30px; box-shadow: 0 24px 70px rgba(0,0,0,.48); border: 1px solid #2e2f35; background: #000; cursor: zoom-in; }
.phone-shot figcaption { color: var(--muted); text-align: center; font-size: .82rem; margin-top: 9px; }
.hero-shot { width: min(100%, 300px); transform: rotate(1.2deg); }
.search-panel { padding: 22px 26px; border: 1px solid #302a25; background: linear-gradient(145deg, #16110d, #111214); border-radius: var(--radius); margin: 0 0 18px; }
.search-panel label { display: block; font-weight: 800; margin-bottom: 9px; }
.search-wrap { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.search-wrap input { width: 100%; border: 1px solid #474951; background: #090a0b; color: white; border-radius: 13px; padding: 13px 15px; outline: none; }
.search-wrap input:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(255,146,40,.14); }
.search-wrap button { border: 1px solid #57402c; background: #25170d; color: var(--orange); border-radius: 13px; padding: 0 16px; cursor: pointer; }
.search-status { min-height: 1.2em; color: var(--muted); margin: 8px 0 0; font-size: .85rem; }
.quick-links { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; margin: 18px 0 42px; }
.quick-links a { min-height: 76px; display: grid; place-items: center; align-content: center; gap: 2px; text-decoration: none; border: 1px solid var(--line); background: var(--panel); border-radius: 16px; font-size: .82rem; color: #d5d5d9; }
.quick-links span { color: var(--orange); font-size: 1.3rem; }
.guide-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 34px; align-items: start; }
.toc { position: sticky; top: 90px; }
.toc-card { border: 1px solid var(--line); background: var(--bg-soft); border-radius: 16px; padding: 16px 12px; display: grid; gap: 3px; }
.toc-card strong { color: var(--orange); padding: 6px 8px 10px; }
.toc-card a { color: #bebfc5; text-decoration: none; border-radius: 8px; padding: 6px 8px; font-size: .82rem; }
.toc-card a:hover, .toc-card a.active { background: var(--panel); color: white; }
.guide-content { min-width: 0; }
.help-section { scroll-margin-top: 92px; padding: 24px 0 66px; border-bottom: 1px solid rgba(255,255,255,.09); }
.help-section[hidden] { display: none; }
.section-heading { display: flex; gap: 15px; align-items: flex-start; margin-bottom: 26px; }
.section-heading .step { flex: 0 0 auto; min-width: 36px; height: 36px; border-radius: 11px; display: grid; place-items: center; border: 1px solid #6b3b14; background: #2b190c; color: var(--orange); font-weight: 850; }
.section-heading h2 { font-size: clamp(1.75rem, 4vw, 2.65rem); line-height: 1.08; margin: 0 0 7px; letter-spacing: -.025em; }
.section-heading p { color: var(--muted); margin: 0; font-size: 1rem; }
h3 { color: #fff; margin: 24px 0 10px; font-size: 1.18rem; }
p { color: #d0d0d5; }
ol, ul { color: #d0d0d5; padding-left: 1.35rem; }
li + li { margin-top: .55rem; }
.feature-list { padding-left: 0; list-style: none; }
.feature-list li { position: relative; padding-left: 24px; }
.feature-list li::before { content: "•"; position: absolute; left: 6px; color: var(--orange); font-weight: 900; }
.media-grid { display: grid; grid-template-columns: minmax(260px, .7fr) minmax(0, 1.3fr); gap: 34px; align-items: center; margin: 24px 0 36px; }
.media-grid.reverse { grid-template-columns: minmax(0, 1.3fr) minmax(260px, .7fr); }
.media-grid.reverse figure { order: 2; }
.media-grid > .phone-shot + .phone-shot { width: min(100%, 300px); }
.journey-pin-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; align-items: start; margin: 24px 0 36px; }
.journey-pin-grid .phone-shot { width: min(100%, 280px); }
.cards { display: grid; gap: 14px; margin: 20px 0; }
.cards.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cards.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card { padding: 20px 21px; border: 1px solid var(--line); background: linear-gradient(145deg, var(--panel), #121315); border-radius: 18px; }
.card h3 { margin-top: 0; }
.card p:last-child, .card ul:last-child { margin-bottom: 0; }
.callout { border-radius: 16px; padding: 16px 18px; margin: 20px 0; border: 1px solid; }
.callout.info { background: #121820; border-color: #253a52; }
.callout.tip { background: #1d160d; border-color: #674015; }
.callout.tip strong, .callout.warning strong { color: var(--orange); }
.callout.privacy { background: #101915; border-color: #264634; }
.callout.warning { background: #25140d; border-color: #6b361f; }
.note { color: var(--muted); font-size: .9rem; }
.gesture-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.gesture { display: grid; grid-template-columns: 42px 1fr; gap: 12px; padding: 16px; border: 1px solid var(--line); border-radius: 16px; background: var(--panel); }
.gesture-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; background: var(--orange-soft); color: var(--orange); font-size: 1.35rem; }
.gesture p { margin: 3px 0 0; color: var(--muted); font-size: .9rem; }
.definition-list { margin: 0; }
.definition-list > div { display: grid; grid-template-columns: 180px 1fr; gap: 15px; padding: 13px 0; border-bottom: 1px solid #303138; }
.definition-list dt { font-weight: 800; color: var(--orange); }
.definition-list dd { margin: 0; color: #d0d0d5; }
.definition-list.compact > div { grid-template-columns: 160px 1fr; }
.faq details { border: 1px solid var(--line); background: var(--panel); border-radius: 14px; padding: 0 16px; margin: 10px 0; }
.faq summary { cursor: pointer; padding: 15px 0; font-weight: 750; }
.faq details[open] summary { color: var(--orange); }
.faq p { margin-top: 0; }
.screenshot-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.screenshot-grid figure { margin: 0; }
.screenshot-grid img { border-radius: 16px; border: 1px solid var(--line); cursor: zoom-in; }
.screenshot-grid figcaption { text-align: center; color: var(--muted); font-size: .78rem; margin-top: 6px; }
.site-footer { width: min(var(--max), calc(100% - 32px)); margin: 40px auto 0; padding: 34px 0 max(34px, env(safe-area-inset-bottom)); border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.site-footer > div { display: flex; align-items: center; gap: 12px; }
.site-footer > div img { border-radius: 12px; }
.site-footer > div div { display: grid; }
.site-footer span { color: var(--muted); font-size: .8rem; }
.site-footer .nre-credit { flex: 0 0 auto; display: flex; align-items: center; justify-content: center; padding: 12px 16px; border: 1px solid #34404d; border-radius: 14px; background: #f7f9fb; box-shadow: 0 10px 28px rgba(0,0,0,.28); }
.site-footer .nre { width: 290px; max-width: 32vw; border-radius: 0; }
.back-top { position: fixed; right: 18px; bottom: 18px; width: 44px; height: 44px; border: 1px solid #60370f; border-radius: 50%; background: #22150b; color: var(--orange); font-size: 1.3rem; opacity: 0; pointer-events: none; transition: opacity .18s; z-index: 80; }
.back-top.visible { opacity: 1; pointer-events: auto; }
.lightbox { position: fixed; inset: 0; z-index: 500; display: none; place-items: center; padding: 30px; background: rgba(0,0,0,.9); }
.lightbox.open { display: grid; }
.lightbox img { max-height: 88vh; max-width: min(94vw, 760px); border-radius: 24px; box-shadow: 0 25px 90px #000; }
.lightbox p { margin: 12px 0 0; text-align: center; color: #d9d9dd; }
.lightbox-close { position: fixed; top: 18px; right: 18px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid #555; background: #202124; color: white; font-size: 1.7rem; }
mark { background: #60340d; color: #fff; border-radius: 3px; }
@media (max-width: 980px) {
  .primary-nav { display: none; position: absolute; top: 66px; right: 14px; width: min(320px, calc(100vw - 28px)); padding: 8px; flex-direction: column; align-items: stretch; background: #17181b; border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 20px 60px #000; }
  .primary-nav.open { display: flex; }
  .nav-toggle { display: block; }
  .hero { grid-template-columns: 1fr .58fr; gap: 34px; padding-left: 8px; padding-right: 8px; }
  .quick-links { grid-template-columns: repeat(3, 1fr); }
  .guide-layout { grid-template-columns: 1fr; }
  .toc { display: none; }
  .screenshot-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 700px) {
  main { width: min(100% - 22px, var(--max)); }
  .site-header { min-height: 64px; gap: 10px; padding-left: max(12px, env(safe-area-inset-left)); padding-right: max(12px, env(safe-area-inset-right)); }
  .brand { gap: 9px; min-width: 0; }
  .brand img { width: 38px; height: 38px; flex: 0 0 auto; }
  .brand strong { font-size: .96rem; white-space: nowrap; }
  .brand small { font-size: .72rem; white-space: nowrap; }
  .header-app-link { padding: 8px 10px; border-radius: 10px; font-size: .82rem; }
  .nav-toggle { padding: 8px 10px; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 42px; gap: 34px; }
  h1 { max-width: none; font-size: clamp(2.4rem, 13vw, 4.4rem); }
  .hero-shot { width: min(72vw, 300px); }
  .quick-links { grid-template-columns: repeat(2, 1fr); }
  .media-grid, .media-grid.reverse { grid-template-columns: 1fr; gap: 22px; }
  .media-grid.reverse figure { order: 0; }
  .media-grid .phone-shot { width: min(74vw, 330px); }
  .cards.two, .cards.three, .gesture-grid, .journey-pin-grid { grid-template-columns: 1fr; }
  .definition-list > div, .definition-list.compact > div { grid-template-columns: 1fr; gap: 3px; }
  .screenshot-grid { grid-template-columns: repeat(2, 1fr); }
  .site-footer { align-items: flex-start; flex-direction: column; }
  .site-footer .nre-credit { width: 100%; padding: 12px 14px; }
  .site-footer .nre { width: min(100%, 270px); max-width: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}