:root {
  --ink: #171817;
  --ink-soft: #242522;
  --paper: #f4f0e8;
  --paper-deep: #e9e2d6;
  --line: rgba(23, 24, 23, 0.16);
  --muted: #686b65;
  --orange: #f47a2a;
  --orange-dark: #cf5812;
  --lime: #d7e8b3;
  --radius: 0.45rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Manrope', 'Segoe UI', sans-serif;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
.icon { width: 1.05em; height: 1.05em; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.icon-lg { width: 25px; height: 25px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.site-shell { min-height: 100vh; overflow-x: clip; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  height: 84px;
  margin: 0 auto;
  padding-inline: max(28px, calc((100vw - 1460px) / 2));
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 91%, transparent);
  backdrop-filter: blur(16px) saturate(1.25);
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 720; letter-spacing: -0.02em; }
.brand img { width: 36px; height: 36px; object-fit: contain; border-radius: 8px; }
.site-header nav { display: flex; gap: 32px; color: var(--muted); font-size: 14px; }
.site-header nav a:hover { color: var(--ink); }
.header-cta { justify-self: end; display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 650; }
.header-tools { justify-self: end; display: flex; align-items: center; gap: 20px; }
.locale-switch { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 999px; }
.locale-switch button { width: 34px; height: 27px; border: 0; border-radius: 999px; background: transparent; color: var(--muted); font: 600 11px/1 'IBM Plex Mono', monospace; cursor: pointer; }
.locale-switch button.active { background: var(--ink); color: white; }

.hero {
  width: min(1460px, calc(100% - 56px));
  margin: 0 auto;
  min-height: 760px;
  display: grid;
  grid-template-columns: minmax(430px, 0.86fr) minmax(570px, 1.14fr);
  gap: clamp(48px, 6vw, 100px);
  align-items: center;
  padding: 72px 0 90px;
}
.eyebrow { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 12px; font-weight: 650; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow span { width: 8px; height: 8px; background: var(--orange); border-radius: 50%; box-shadow: 0 0 0 5px rgba(244,122,42,.13); }
.hero h1 { margin: 28px 0 26px; max-width: 740px; font-size: clamp(64px, 6.2vw, 104px); line-height: .91; letter-spacing: -.072em; font-weight: 760; }
.hero h1 em { color: var(--orange-dark); font-style: normal; }
.hero-lead { max-width: 630px; margin: 0; color: #565852; font-size: clamp(18px, 1.45vw, 22px); line-height: 1.55; letter-spacing: -.02em; }
.hero-actions { display: flex; align-items: center; gap: 22px; margin-top: 38px; flex-wrap: wrap; }
.primary-action { display: inline-flex; align-items: center; gap: 12px; padding: 16px 21px; background: var(--ink); color: white; border-radius: 4px; font-weight: 670; transition: transform .2s ease, background .2s ease; }
.primary-action:hover { transform: translateY(-2px); background: var(--orange-dark); }
.release-pill { padding: 10px 13px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-family: 'IBM Plex Mono', monospace; font-size: 12px; }
.hero-checks { display: flex; flex-wrap: wrap; gap: 12px 22px; margin-top: 42px; color: var(--muted); font-size: 13px; }
.hero-checks span { display: flex; align-items: center; gap: 7px; }
.hero-checks svg { color: var(--orange-dark); }
.platform-card { width: fit-content; display: grid; grid-template-columns: auto repeat(3, auto); align-items: center; gap: 0; margin-top: 22px; overflow: hidden; border: 1px solid var(--line); border-radius: 5px; color: var(--muted); font-size: 12px; }
.platform-label { padding: 11px 14px; background: var(--paper-deep); color: var(--ink); font-weight: 650; }
.platform { display: flex; align-items: center; gap: 6px; padding: 11px 13px; border-left: 1px solid var(--line); }
.platform.ready svg { color: #527534; }
.platform:not(.ready) svg { color: var(--orange-dark); }
.platform small { color: #8a8c86; font-size: 10px; }

.hero-visual { position: relative; align-self: stretch; min-height: 560px; margin-right: -8vw; background: var(--ink-soft); border: 1px solid rgba(255,255,255,.1); border-radius: 7px 0 0 7px; box-shadow: 0 35px 90px rgba(38,33,26,.23); overflow: hidden; }
.visual-topline { height: 48px; display: flex; align-items: center; gap: 8px; padding: 0 16px; border-bottom: 1px solid rgba(255,255,255,.11); color: rgba(255,255,255,.58); font-size: 12px; }
.visual-dot { width: 8px; height: 8px; border-radius: 50%; background: #555751; }
.visual-dot.orange { background: var(--orange); }
.visual-title { margin-left: 8px; font-family: 'IBM Plex Mono', monospace; }
.hero-visual > img { width: 100%; height: calc(100% - 96px); object-fit: cover; object-position: center; filter: saturate(.82) contrast(1.04); display: block; }
.visual-status { position: absolute; inset: auto 0 0; min-height: 48px; display: flex; align-items: center; gap: 24px; padding: 0 18px; background: rgba(23,24,23,.92); color: rgba(255,255,255,.72); font-size: 12px; backdrop-filter: blur(10px); }
.visual-status span { display: flex; align-items: center; gap: 8px; }
.visual-status svg { color: var(--orange); }

.proof-strip { min-height: 92px; display: flex; align-items: center; justify-content: center; gap: clamp(24px, 4vw, 68px); padding: 22px 28px; background: var(--ink); color: rgba(255,255,255,.58); font-family: 'IBM Plex Mono', monospace; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.proof-strip p { margin: 0 auto 0 0; color: white; font-family: 'Manrope', sans-serif; font-size: 16px; font-weight: 650; text-transform: none; letter-spacing: -.01em; }

.section { width: min(1280px, calc(100% - 56px)); margin: 0 auto; }
.section-tag { margin: 0 0 18px; color: var(--orange-dark); font: 600 11px/1.2 'IBM Plex Mono', monospace; letter-spacing: .1em; text-transform: uppercase; }
.section-tag.light { color: #ffa469; }
.section h2 { margin: 0; max-width: 850px; font-size: clamp(42px, 4.8vw, 74px); line-height: .98; letter-spacing: -.055em; font-weight: 720; }
.section-heading { display: grid; grid-template-columns: 1.1fr .72fr; gap: 80px; align-items: end; }
.section-heading > p, .systems-heading > p:last-child, .mechanics-copy > p, .detail-copy > p, .beta-copy > p { margin: 0; color: var(--muted); font-size: 18px; line-height: 1.65; }
.product-section { padding: 142px 0; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 78px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.feature-card { min-height: 330px; position: relative; padding: 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.feature-card > svg { width: 25px; height: 25px; color: var(--orange-dark); }
.feature-card > span { position: absolute; top: 31px; right: 28px; color: #95978f; font: 12px 'IBM Plex Mono', monospace; }
.feature-card h3 { margin: 72px 0 15px; max-width: 230px; font-size: 23px; line-height: 1.12; letter-spacing: -.035em; }
.feature-card p { margin: 0; color: var(--muted); line-height: 1.6; }

.systems-section { background: var(--ink); color: white; }
.systems-inner { padding: 138px 0 148px; }
.systems-heading { display: grid; grid-template-columns: 1.1fr .7fr; gap: 70px; align-items: end; }
.systems-heading .section-tag { grid-column: 1 / -1; margin-bottom: -40px; }
.systems-heading > p:last-child { color: rgba(255,255,255,.56); }
.systems-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 72px; }
.system-card { min-height: 470px; display: flex; flex-direction: column; padding: 30px; border: 1px solid rgba(255,255,255,.13); background: linear-gradient(145deg, rgba(255,255,255,.055), rgba(255,255,255,.015)); }
.system-number { color: var(--orange); font: 13px 'IBM Plex Mono', monospace; }
.system-card h3 { margin: 78px 0 18px; max-width: 300px; font-size: 28px; line-height: 1.08; letter-spacing: -.04em; }
.system-card > p { margin: 0; color: rgba(255,255,255,.58); line-height: 1.65; }
.system-card ul { display: grid; gap: 11px; margin: auto 0 0; padding: 26px 0 0; border-top: 1px solid rgba(255,255,255,.12); list-style: none; color: rgba(255,255,255,.76); font-size: 13px; }
.system-card li { display: flex; align-items: center; gap: 9px; }
.system-card li svg { color: var(--orange); }

.mechanics-section { display: grid; grid-template-columns: 1fr .9fr; gap: clamp(70px, 10vw, 150px); align-items: center; padding: 150px 0; }
.mechanics-copy h2 { margin-bottom: 28px; }
.mechanics-copy ul { display: grid; gap: 14px; margin: 38px 0 0; padding: 0; list-style: none; }
.mechanics-copy li { display: flex; align-items: center; gap: 12px; color: #4d504b; }
.mechanics-copy li svg { color: var(--orange-dark); flex: 0 0 auto; }
.mechanics-panel { padding: 20px; border: 1px solid #343632; border-radius: 7px; background: #20211f; color: white; box-shadow: 18px 22px 0 var(--paper-deep); font-family: 'IBM Plex Mono', monospace; }
.panel-head { display: flex; justify-content: space-between; padding: 2px 4px 18px; border-bottom: 1px solid rgba(255,255,255,.13); color: rgba(255,255,255,.46); font-size: 11px; }
.panel-rows > div { display: flex; justify-content: space-between; gap: 22px; padding: 20px 4px; border-bottom: 1px solid rgba(255,255,255,.1); font-size: 12px; }
.panel-rows span { display: flex; align-items: center; gap: 9px; color: rgba(255,255,255,.55); }
.panel-rows svg { width: 15px; height: 15px; color: var(--orange); }
.panel-rows strong { text-align: right; font-weight: 560; }
.panel-result { display: flex; align-items: center; gap: 14px; margin-top: 20px; padding: 17px; border: 1px solid rgba(215,232,179,.28); background: rgba(215,232,179,.1); }
.panel-result > svg { color: var(--lime); }
.panel-result div { display: grid; gap: 3px; }
.panel-result small { color: rgba(255,255,255,.48); font-size: 9px; letter-spacing: .12em; }
.panel-result strong { font-size: 13px; }

.workflow-section { padding: 138px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #ece6db; }
.workflow-title { display: flex; align-items: end; justify-content: space-between; }
.step-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 76px; }
.step-grid article { position: relative; min-height: 270px; padding: 27px; border-top: 2px solid var(--ink); background: rgba(255,255,255,.35); }
.step-grid article::before { content: ''; position: absolute; top: -6px; left: 0; width: 10px; height: 10px; border-radius: 50%; background: var(--orange); }
.step-grid span { color: var(--orange-dark); font: 12px 'IBM Plex Mono', monospace; }
.step-grid h3 { margin: 70px 0 14px; font-size: 21px; letter-spacing: -.025em; }
.step-grid p { margin: 0; color: var(--muted); line-height: 1.55; }

.detail-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: center; padding: 142px 0; }
.detail-copy h2 { margin-bottom: 28px; font-size: clamp(40px, 4vw, 66px); }
.metrics-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.metrics-grid > div { min-height: 190px; display: grid; align-content: end; padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metrics-grid svg { width: 20px; height: 20px; margin-bottom: 32px; color: var(--orange-dark); }
.metrics-grid strong { font: 600 clamp(25px, 3vw, 42px)/1 'IBM Plex Mono', monospace; letter-spacing: -.05em; }
.metrics-grid span { margin-top: 8px; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.metrics-grid small { margin-top: 7px; color: var(--orange-dark); font: 500 10px/1.35 'IBM Plex Mono', monospace; letter-spacing: .035em; text-transform: uppercase; }

.beta-section { background: var(--ink); color: white; }
.beta-grid { display: grid; grid-template-columns: .8fr 1fr; gap: clamp(70px, 10vw, 150px); padding: 142px 0; }
.beta-copy h2 { margin-bottom: 28px; font-size: clamp(44px, 4.5vw, 72px); }
.beta-copy > p { color: rgba(255,255,255,.6); }
.closed-note { width: fit-content; display: flex; align-items: center; gap: 10px; margin-top: 34px; padding: 12px 14px; border: 1px solid rgba(244,122,42,.35); color: #ffae78; font-size: 13px; }
.beta-points { display: grid; gap: 13px; margin-top: 45px; color: rgba(255,255,255,.54); font-size: 13px; }
.beta-points span { display: flex; align-items: center; gap: 10px; }
.beta-points svg { width: 16px; height: 16px; color: var(--orange); }
.beta-form { display: flex; flex-direction: column; gap: 22px; padding: 34px; border: 1px solid rgba(255,255,255,.13); background: rgba(255,255,255,.04); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 8px; }
.beta-form label { color: rgba(255,255,255,.76); font-size: 12px; }
.beta-form input, .beta-form select, .beta-form textarea { min-height: 48px; border: 1px solid rgba(255,255,255,.18); border-radius: 3px; background: rgba(0,0,0,.14); color: white; padding: 11px 13px; outline: none; }
.beta-form input:focus, .beta-form select:focus, .beta-form textarea:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(244,122,42,.15); }
.beta-form input::placeholder, .beta-form textarea::placeholder { color: rgba(255,255,255,.32); }
.beta-select { width: 100%; }
.beta-form select { width: 100%; }
.beta-form textarea { width: 100%; resize: vertical; font: inherit; }
.beta-form option { background: #242522; color: white; }
.consent-field { display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: flex-start; }
.consent-field input { width: 18px; min-height: 18px; margin: 2px 0 0; accent-color: var(--orange); }
.consent-field label { max-width: 580px; cursor: pointer; line-height: 1.5; }
.field-description { margin: -10px 0 0 28px; color: rgba(255,255,255,.38); font-size: 11px; }
.beta-submit { min-height: 51px; display: flex; align-items: center; justify-content: space-between; border: 0; border-radius: 3px; background: var(--orange); color: var(--ink); padding: 0 17px; font-weight: 720; cursor: pointer; }
.beta-submit:hover { background: #ff9550; }
.beta-submit:disabled { cursor: wait; opacity: .68; }
.form-message { min-height: 22px; color: #ff9777; font-size: 12px; line-height: 1.45; }
.form-message.success { display: flex; align-items: center; gap: 8px; color: var(--lime); }
.form-message svg { width: 17px; height: 17px; flex: 0 0 auto; }
.honeypot { position: absolute !important; left: -9999px !important; width: 1px !important; height: 1px !important; opacity: 0 !important; }

.faq-section { display: grid; grid-template-columns: .55fr 1fr; gap: 100px; padding: 140px 0; }
.faq-section h2 { font-size: clamp(42px, 4vw, 64px); }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 27px 4px; cursor: pointer; font-size: 17px; font-weight: 650; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary svg { color: var(--orange-dark); transition: transform .2s ease; }
.faq-list details[open] summary svg { transform: rotate(45deg); }
.faq-list details p { max-width: 760px; margin: -4px 40px 27px 4px; color: var(--muted); line-height: 1.65; }

.guide-main { width: min(1180px, calc(100% - 56px)); margin: 0 auto; padding: 88px 0 130px; }
.guide-hero { max-width: 920px; padding-bottom: 64px; border-bottom: 1px solid var(--line); }
.guide-hero h1 { margin: 24px 0; font-size: clamp(52px, 7vw, 92px); line-height: .94; letter-spacing: -.065em; }
.guide-hero > p { max-width: 760px; color: var(--muted); font-size: 19px; line-height: 1.65; }
.guide-version { display: inline-flex; margin-top: 18px; padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; font: 500 11px/1 'IBM Plex Mono', monospace; }
.guide-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 72px; padding-top: 58px; }
.guide-toc { position: sticky; top: 116px; align-self: start; display: grid; gap: 5px; }
.guide-toc strong { margin-bottom: 10px; font: 600 11px/1 'IBM Plex Mono', monospace; color: var(--orange-dark); letter-spacing: .08em; }
.guide-toc a { padding: 10px 12px; border-left: 2px solid var(--line); color: var(--muted); font-size: 13px; }
.guide-toc a:hover { border-color: var(--orange); color: var(--ink); }
.guide-content { display: grid; gap: 76px; }
.guide-content section { scroll-margin-top: 110px; }
.guide-content h2 { margin: 0 0 22px; font-size: clamp(32px, 4vw, 52px); letter-spacing: -.045em; }
.guide-content h3 { margin: 30px 0 10px; font-size: 19px; }
.guide-content p, .guide-content li { color: var(--muted); line-height: 1.72; }
.guide-content ol, .guide-content ul { margin: 18px 0 0; padding-left: 22px; }
.guide-content li + li { margin-top: 10px; }
.guide-note { margin-top: 24px; padding: 18px 20px; border-left: 3px solid var(--orange); background: var(--paper-deep); color: var(--ink) !important; }
.guide-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 24px; }
.guide-card { padding: 22px; border: 1px solid var(--line); }
.guide-card h3 { margin-top: 0; }
.guide-overview { display: grid; grid-template-columns: .62fr 1.38fr; gap: 64px; align-items: start; padding: 70px 0; border-bottom: 1px solid var(--line); }
.guide-overview h2 { margin: 12px 0 0; font-size: clamp(30px, 3vw, 46px); line-height: 1.05; letter-spacing: -.045em; }
.guide-flow { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 0; padding: 1px; list-style: none; background: var(--line); }
.guide-flow li { display: grid; grid-template-columns: 36px 1fr; gap: 12px; align-items: start; min-height: 88px; padding: 18px; background: var(--paper); }
.guide-flow strong, .guide-kicker { color: var(--orange-dark); font: 600 11px/1.3 'IBM Plex Mono', monospace; letter-spacing: .08em; }
.guide-flow span { font-size: 13px; line-height: 1.45; }
.guide-figure { margin: 58px 0 0; border: 1px solid var(--line); background: var(--ink); }
.guide-figure img { display: block; width: 100%; height: auto; }
.guide-figure figcaption { padding: 16px 18px; color: rgba(255,255,255,.68); font-size: 12px; line-height: 1.55; }
.guide-figure-wide img { aspect-ratio: 16 / 8.4; object-fit: cover; object-position: center top; }
.guide-kicker { margin: 0 0 12px; }
.guide-path { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 0 0 24px; }
.guide-path span { padding: 7px 10px; border: 1px solid var(--line); border-radius: 999px; background: var(--paper-deep); color: var(--ink); font: 500 11px/1.2 'IBM Plex Mono', monospace; }
.guide-path i { color: var(--orange-dark); font-style: normal; }
.guide-steps { display: grid; gap: 1px; margin: 24px 0 0 !important; padding: 1px !important; list-style: none; background: var(--line); }
.guide-steps li { display: grid; grid-template-columns: 44px 1fr; gap: 18px; margin: 0 !important; padding: 22px; background: var(--paper); }
.guide-steps h3 { margin: 0 0 6px; color: var(--ink); }
.guide-steps p { margin: 0; }
.step-number { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: white; font: 600 12px/1 'IBM Plex Mono', monospace; }
.guide-callout { margin-top: 26px; padding: 20px 22px; border: 1px solid var(--line); border-left-width: 4px; background: var(--paper-deep); }
.guide-callout strong { display: block; margin-bottom: 6px; }
.guide-callout p { margin: 0; color: var(--muted); }
.guide-callout.warning { border-left-color: var(--orange); }
.guide-callout.danger { border-left-color: #b83a2e; background: #f5e6e2; }
.guide-callout.success { border-left-color: #5a7b3d; background: #eaf0df; }
.guide-stage-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin-top: 26px; padding: 1px; background: var(--line); }
.guide-stage-grid > div { display: grid; grid-template-columns: 34px 1fr; gap: 2px 12px; align-items: baseline; padding: 17px; background: var(--paper); }
.guide-stage-grid b { grid-row: 1 / 3; color: var(--orange-dark); font: 600 11px/1 'IBM Plex Mono', monospace; }
.guide-stage-grid strong { font-size: 14px; }
.guide-stage-grid span { grid-column: 2; color: var(--muted); font-size: 12px; line-height: 1.4; }
.guide-table-wrap { margin-top: 24px; overflow-x: auto; border: 1px solid var(--line); }
.guide-table { width: 100%; border-collapse: collapse; background: rgba(255,255,255,.3); }
.guide-table th, .guide-table td { min-width: 150px; padding: 15px 16px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.guide-table th { color: var(--ink); background: var(--paper-deep); font: 600 10px/1.3 'IBM Plex Mono', monospace; letter-spacing: .06em; text-transform: uppercase; }
.guide-table td { color: var(--muted); font-size: 13px; line-height: 1.55; }
.guide-table tr:last-child td { border-bottom: 0; }
.guide-table th:last-child, .guide-table td:last-child { border-right: 0; }
.guide-checks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 22px; }
.guide-checks div { display: grid; gap: 6px; padding: 18px; border-top: 2px solid var(--orange); background: var(--paper-deep); }
.guide-checks span { color: var(--muted); font-size: 13px; line-height: 1.5; }
.guide-report { display: grid; grid-template-columns: .8fr 1.2fr; gap: 24px; margin-top: 30px; padding: 24px; background: var(--ink); color: white; }
.guide-report p { color: rgba(255,255,255,.58); }
.guide-report ol { margin: 0; color: rgba(255,255,255,.72); }

footer { width: min(1460px, calc(100% - 56px)); min-height: 132px; margin: 0 auto; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 26px 40px; padding-block: 28px; border-top: 1px solid var(--line); }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand img { width: 40px; height: 40px; border-radius: 8px; }
.footer-brand div { display: grid; gap: 4px; }
.footer-brand span, .footer-meta { color: var(--muted); font-size: 12px; }
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 14px 28px; }
.status-dot { display: flex; align-items: center; gap: 8px; }
.status-dot i { width: 7px; height: 7px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 4px rgba(244,122,42,.12); }
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 45;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 50%;
  background: var(--ink);
  color: white;
  box-shadow: 0 12px 35px rgba(23,24,23,.28);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s ease, background .2s ease;
}
.back-to-top .icon { width: 20px; height: 20px; transform: rotate(-90deg); }
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--orange-dark); }
.back-to-top:focus-visible { outline: 3px solid rgba(244,122,42,.42); outline-offset: 3px; }

@media (max-width: 1050px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 62px; }
  .hero-copy { max-width: 800px; }
  .hero-visual { margin-right: -28px; min-height: 560px; }
  .proof-strip { flex-wrap: wrap; justify-content: flex-start; }
  .proof-strip p { width: 100%; }
  .section-heading, .systems-heading, .mechanics-section, .detail-section, .beta-grid, .faq-section, .guide-overview { grid-template-columns: 1fr; gap: 54px; }
  .systems-heading .section-tag { margin-bottom: 0; }
  .feature-grid, .step-grid { grid-template-columns: repeat(2, 1fr); }
  .systems-list { grid-template-columns: 1fr; }
  .system-card { min-height: 390px; }
  .mechanics-panel { max-width: 720px; }
  footer { align-items: flex-start; }
  .footer-meta { justify-content: flex-start; }
  .guide-layout { grid-template-columns: 1fr; gap: 42px; }
  .guide-toc { position: static; grid-template-columns: repeat(2, 1fr); }
  .guide-toc strong { grid-column: 1 / -1; }
}
@media (min-width: 1051px) and (max-height: 1000px) {
  .hero {
    min-height: calc(100svh - 84px - 92px);
    padding-block: 40px 44px;
  }
  .hero h1 { margin: 20px 0 18px; font-size: clamp(60px, 5vw, 90px); }
  .hero-lead { font-size: 18px; line-height: 1.48; }
  .hero-actions { margin-top: 24px; }
  .hero-checks { margin-top: 24px; }
  .platform-card { margin-top: 14px; }
  .hero-visual { min-height: 0; }
}
@media (max-width: 780px) {
  .feature-grid, .systems-list, .step-grid {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: min(86vw, 430px);
    grid-template-columns: none;
    gap: 14px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-snap-type: inline mandatory;
    scroll-padding-inline: 1px;
    padding-bottom: 14px;
    scrollbar-width: thin;
  }
  .feature-card, .system-card, .step-grid article { scroll-snap-align: start; scroll-snap-stop: always; }
  .feature-grid { border-left: 0; }
  .feature-card { border: 1px solid var(--line); }
}
@media (max-width: 640px) {
  .hero { width: min(100% - 32px, 1460px); }
  .site-header { height: 72px; padding-inline: 16px; }
  .brand span { font-size: 15px; }
  .header-cta { font-size: 0; }
  .header-cta svg { width: 20px; height: 20px; }
  .header-tools { gap: 10px; }
  .hero { min-height: auto; padding: 48px 0 64px; gap: 50px; }
  .hero h1 { margin-top: 22px; font-size: clamp(50px, 17vw, 70px); }
  .hero-lead { font-size: 17px; }
  .hero-visual { min-height: 390px; margin-right: -16px; }
  .hero-visual > img { object-position: 47% center; }
  .visual-status { gap: 14px; }
  .proof-strip { padding: 28px 16px; gap: 18px 26px; }
  .section, footer { width: min(100% - 32px, 1280px); }
  .product-section, .mechanics-section, .detail-section, .faq-section { padding: 92px 0; }
  .systems-inner, .beta-grid { padding: 92px 0; }
  .workflow-section { padding: 92px 0; }
  .section-heading, .systems-heading { gap: 28px; }
  .metrics-grid, .form-row { grid-template-columns: 1fr; }
  .feature-card { min-height: 280px; }
  .mechanics-panel { padding: 16px; box-shadow: 9px 12px 0 var(--paper-deep); }
  .panel-rows > div { align-items: flex-start; flex-direction: column; gap: 9px; }
  .panel-rows strong { text-align: left; }
  .beta-form { padding: 22px; }
  .platform-card { width: 100%; grid-template-columns: 1fr; }
  .platform { border-top: 1px solid var(--line); border-left: 0; }
  .platform small { margin-left: auto; }
  footer { align-items: flex-start; flex-direction: column; padding: 34px 0; }
  .footer-meta { align-items: flex-start; flex-direction: column; gap: 12px; }
  .back-to-top { right: 16px; bottom: 16px; width: 44px; height: 44px; }
  .guide-main { width: min(100% - 32px, 1180px); padding: 56px 0 92px; }
  .guide-hero { padding-bottom: 44px; }
  .guide-layout { padding-top: 38px; }
  .guide-toc, .guide-cards, .guide-flow, .guide-stage-grid, .guide-checks, .guide-report { grid-template-columns: 1fr; }
  .guide-stage-grid > div { grid-template-columns: 30px 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .back-to-top { transition: none; }
}