/* =====================================================================
   Grok Bot 導入支援 LP  —  style.css
   構成: tokens → base → utilities → components → sections → responsive
   ===================================================================== */

/* ---------- Tokens ---------- */
:root {
  --ink: #171a21;
  --ink-2: #2b3040;
  --ink-3: #59637a;
  --muted: #7e8899;
  --paper: #fafbfd;
  --paper-2: #f1f4f9;
  --paper-3: #e6ebf3;
  --line: #d9dfe9;
  --line-strong: #b9c2d0;
  --white: #ffffff;

  --accent: #2453d8;
  --accent-deep: #1b3fad;
  --accent-soft: #e6ecfb;
  --cta: #e4262b;
  --cta-deep: #c91d22;
  --cta-soft: #fdeaea;

  --bot-blue: #3d7cf2;
  --bot-orange: #ff8a2b;
  --bot-green: #2fb56c;
  --bot-black: #23262d;
  --bot-gray: #9aa3b3;
  --bot-brown: #9b6a3f;

  --ok: #1e9e6a;
  --ok-soft: #e3f6ec;
  --warn: #d28a00;
  --warn-soft: #fff3d6;
  --stop: #d6453c;
  --stop-soft: #fde7e5;

  --on-dark: #f3f5f9;
  --on-dark-muted: #a9b2c1;
  --dark-line: rgba(255, 255, 255, 0.14);
  --dark-surface: rgba(255, 255, 255, 0.05);

  --font-jp: "Zen Kaku Gothic New", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Menlo, Consolas, monospace;

  --r-sm: 10px;
  --r: 16px;
  --r-lg: 24px;
  --container: 1120px;
  --header-h: 68px;
  --shadow: 0 10px 30px rgba(23, 26, 33, 0.08);
  --shadow-lg: 0 24px 60px rgba(23, 26, 33, 0.14);
}

/* ---------- Base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-jp);
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.01em;
  font-feature-settings: "palt";
  text-wrap: balance;
}

p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
img, svg { display: block; max-width: 100%; }
strong { font-weight: 700; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ---------- Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow .num {
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  height: 22px;
  padding: 0 6px;
  border-radius: 6px;
  background: var(--accent);
  color: var(--white);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.ic {
  width: 1.25em;
  height: 1.25em;
  flex: none;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.3;
  white-space: nowrap;
  transition: transform 0.18s ease, background-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

.btn .ic { width: 1.1em; height: 1.1em; }

.btn-cta {
  background: var(--cta);
  color: var(--white);
  box-shadow: 0 8px 22px rgba(255, 106, 31, 0.32);
}
.btn-cta:hover { background: var(--cta-deep); transform: translateY(-2px); }

.btn-ghost {
  border: 1.5px solid var(--ink);
  color: var(--ink);
  background: transparent;
}
.btn-ghost:hover { background: var(--ink); color: var(--white); transform: translateY(-2px); }

.btn-light {
  background: var(--white);
  color: var(--ink);
}
.btn-light:hover { background: var(--paper-2); transform: translateY(-2px); }

.btn-outline-light {
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  color: var(--on-dark);
}
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-2px); }

.btn-sm { padding: 10px 20px; font-size: 0.92rem; }

/* ---------- Bot characters (SVG symbol #bot / #bot-main) ---------- */
.bot {
  width: 72px;
  height: 84px;
  color: var(--bot-blue);
}

.bot-figure {
  position: relative;
  display: inline-block;
}

.bot-badge {
  position: absolute;
  right: -6px;
  bottom: 8px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--white);
  color: var(--ink);
  border: 2px solid var(--paper);
  box-shadow: 0 2px 8px rgba(23, 26, 33, 0.15);
}
.bot-badge .ic { width: 14px; height: 14px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(250, 251, 253, 0.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 4px 20px rgba(23, 26, 33, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
}
.brand .bot { width: 30px; height: 35px; color: var(--ink); }
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}
.brand-text small {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.nav {
  display: flex;
  gap: 4px;
}
.nav a {
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-2);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.nav a:hover { background: var(--paper-2); color: var(--ink); }

.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 10px;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  position: absolute;
  left: 11px;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
  content: "";
}
.nav-toggle span { top: 21px; }
.nav-toggle span::before { left: 0; top: -7px; }
.nav-toggle span::after { left: 0; top: 7px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Sections (shared) ---------- */
.section {
  padding: 104px 0;
  scroll-margin-top: var(--header-h);
}
.section-alt { background: var(--paper-2); }
.section-dark {
  background: var(--ink);
  color: var(--on-dark);
}

.section-head {
  max-width: 760px;
  margin-bottom: 56px;
}
.section-head h2 {
  margin-top: 18px;
  font-size: clamp(1.6rem, 2.95vw, 2.3rem);
  font-weight: 900;
}
.section-head .lead {
  margin-top: 20px;
  font-size: 1.05rem;
  color: var(--ink-3);
  max-width: 40em;
}
.section-dark .section-head .lead { color: var(--on-dark-muted); }
.section-dark .eyebrow,
.contact .eyebrow { color: #8fb0ff; }
.section-dark .eyebrow .num,
.contact .eyebrow .num { background: #8fb0ff; color: var(--ink); }

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-head.center .lead { margin-left: auto; margin-right: auto; }

.statement {
  margin-top: 56px;
  padding: 36px 40px;
  border-left: 4px solid var(--accent);
  background: var(--white);
  border-radius: 0 var(--r) var(--r) 0;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 700;
  line-height: 1.6;
  text-wrap: balance;
}
.statement small {
  display: block;
  margin-top: 10px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-3);
}

.note {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.8;
}

/* chevron connector */
.chev {
  display: block;
  width: 12px;
  height: 12px;
  margin: 0 auto;
  border-right: 2px solid var(--line-strong);
  border-bottom: 2px solid var(--line-strong);
  transform: rotate(45deg);
}
.chev-right { transform: rotate(-45deg); }

/* ---------- Tool chip (02 で使用) ---------- */
.tool-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-2);
  white-space: nowrap;
}
.tool-chip .ic { width: 15px; height: 15px; color: var(--accent); }

/* ---------- 01 About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}
.about-text p + p { margin-top: 18px; }
.about-text p { color: var(--ink-2); }

.team {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 460px;
  margin: 0 auto;
}
.team::before {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1.5px dashed var(--line-strong);
}
.team::after {
  content: "";
  position: absolute;
  inset: 34%;
  border-radius: 50%;
  background: radial-gradient(closest-side, var(--accent-soft), rgba(230, 236, 251, 0));
}
.team-center {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  text-align: center;
}
.team-center .bot { width: 118px; height: 138px; color: var(--ink); margin: 0 auto; }
.team-center .name {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
}
.team-member {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 96px;
  margin: -58px 0 0 -48px;
  text-align: center;
  z-index: 2;
  --r: 170px;
  /* リング上に配置: --a は角度、--r は半径 */
  transform: translate(calc(cos(var(--a)) * var(--r)), calc(sin(var(--a)) * var(--r)));
}
.team-member .bot { width: 62px; height: 72px; margin: 0 auto; }
.team-member .role {
  display: block;
  margin-top: 4px;
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.3;
  white-space: nowrap;
}

/* Comparison */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 64px;
}
.compare-col {
  border-radius: var(--r-lg);
  padding: 28px 28px 24px;
  border: 1px solid var(--line);
  background: var(--white);
}
.compare-col.is-grok {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.compare-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.compare-col.is-grok .compare-title { color: var(--accent); }
.compare-title .bot { width: 26px; height: 30px; }
.flow {
  margin-top: 18px;
}
.flow li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: 10px;
  background: var(--paper-2);
  font-weight: 500;
  color: var(--ink-2);
}
.flow li.human { background: var(--paper-2); }
.flow li.bot-step { background: var(--accent-soft); color: var(--accent-deep); font-weight: 700; }
.flow li + li { margin-top: 24px; position: relative; }
.flow li + li::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -18px;
  width: 10px;
  height: 10px;
  margin-left: -5px;
  border-right: 2px solid var(--line-strong);
  border-bottom: 2px solid var(--line-strong);
  transform: rotate(45deg);
}
.flow .who {
  flex: none;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--white);
  color: var(--ink-3);
}
.flow li.bot-step .who { color: var(--accent); }
.flow .who .ic { width: 15px; height: 15px; }
.flow .who .bot { width: 18px; height: 21px; }
.compare-note {
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--muted);
}

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-top: 40px;
}
.feature {
  padding: 22px 18px;
  border-radius: var(--r);
  background: var(--white);
  border: 1px solid var(--line);
}
.feature .fi {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
}
.feature .fi .ic { width: 21px; height: 21px; }
.feature h3 {
  margin-top: 14px;
  font-size: 0.98rem;
  line-height: 1.5;
}
.feature p {
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--ink-3);
  line-height: 1.7;
}

/* ---------- 02 How ---------- */
.how-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 48px;
  align-items: start;
}
.stage {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  padding: 32px 28px;
  border-radius: var(--r-lg);
  background: var(--white);
  border: 1px solid var(--line);
  text-align: center;
}
.stage-row { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.stage .chev { margin: 14px auto; }
.requester {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px 8px 10px;
  border-radius: 999px;
  background: var(--paper-2);
  font-weight: 700;
  font-size: 0.92rem;
}
.requester .av {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--white);
  color: var(--ink-3);
}
.requester .av .ic { width: 16px; height: 16px; }
.stage-tools {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  max-width: 380px;
}
.stage-bot .bot { width: 110px; height: 128px; color: var(--ink); margin: 0 auto; }
.stage-bot .name {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
}
.stage-outputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  width: 100%;
}
.output {
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 0.86rem;
  font-weight: 700;
  line-height: 1.5;
}
.output.deliverable { background: var(--accent-soft); color: var(--accent-deep); }
.output.approval { background: var(--cta-soft); color: #9a3f0a; }
.output small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  opacity: 0.8;
  margin-bottom: 2px;
}

.bubble {
  position: relative;
  padding: 18px 22px;
  border-radius: 18px;
  background: var(--white);
  border: 1px solid var(--line);
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.6;
}
.bubble .from {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.bubble.user { border-bottom-left-radius: 4px; }
.bubble.grok {
  border-bottom-right-radius: 4px;
  background: var(--ink);
  color: var(--on-dark);
  border-color: var(--ink);
}
.bubble.grok .from { color: #8fb0ff; }
.bubble-row {
  display: flex;
  align-items: flex-end;
  gap: 12px;
}
.bubble-row.grok { flex-direction: row-reverse; }
.bubble-row .bot { width: 44px; height: 52px; flex: none; color: var(--ink); }

.steps {
  margin: 28px 0;
  counter-reset: step;
}
.steps li {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
}
.steps li + li::before {
  content: "";
  position: absolute;
  left: 21px;
  top: -14px;
  height: 14px;
  border-left: 2px dashed var(--line-strong);
}
.steps .n {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--white);
  border: 1.5px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
}
.steps .t { font-weight: 700; }
.steps .tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--white);
  border: 1px solid var(--line);
  white-space: nowrap;
}
.steps li.final .n { background: var(--cta); border-color: var(--cta); color: var(--white); }
.steps li.final .tag { border-color: var(--cta); color: var(--cta-deep); }

/* ---------- 03 Use cases (tabs) ---------- */
.tabs {
  display: flex;
  gap: 6px;
  padding: 6px;
  border-radius: 999px;
  background: var(--paper-2);
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  flex: 1 0 auto;
  padding: 11px 18px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ink-3);
  white-space: nowrap;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.tab:hover { color: var(--ink); }
.tab[aria-selected="true"] {
  background: var(--ink);
  color: var(--white);
}
.tab-panel {
  margin-top: 28px;
  padding: 36px 40px;
  border-radius: var(--r-lg);
  background: var(--white);
  border: 1px solid var(--line);
}
.tab-panel[hidden] { display: none; }
.panel-head {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-bottom: 24px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.panel-head .bot { width: 54px; height: 64px; }
.panel-head h3 { font-size: 1.3rem; }
.panel-head p { font-size: 0.92rem; color: var(--ink-3); margin-top: 2px; }
.panel-cols {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 32px;
}
.col-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 12px;
}
.col-title::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
}
.col-title.human::before { background: var(--cta); }
.col-title.output::before { background: var(--ok); }
.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 7px 0;
  font-size: 0.95rem;
  color: var(--ink-2);
}
.checklist li .ic { width: 18px; height: 18px; margin-top: 5px; color: var(--accent); }
.checklist.human li .ic { color: var(--cta); }
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 13px;
  border-radius: 8px;
  background: var(--ok-soft);
  color: #146b47;
  font-size: 0.86rem;
  font-weight: 700;
}
.chip.neutral { background: var(--paper-2); color: var(--ink-2); font-weight: 600; }

/* ---------- 04 Adoption ---------- */
.adopters-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}
.adopters-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}
.adopters {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 18px;
}
.adopter {
  padding: 26px 26px 22px;
  border-radius: var(--r);
  background: var(--white);
  border: 1px solid var(--line);
}
.adopter .industry {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent);
}
.adopter .name {
  margin-top: 8px;
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.adopters-note { margin-top: 12px; }

.adoption-copy {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.adoption-copy p { color: var(--ink-2); }
.adoption-copy .key {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.6;
  padding-left: 18px;
  border-left: 3px solid var(--cta);
}

.case {
  margin-top: 64px;
  padding: 40px 40px 36px;
  border-radius: var(--r-lg);
  background: var(--white);
  border: 1px solid var(--line);
}
.case-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent);
}
.case h3 {
  margin-top: 12px;
  font-size: 1.35rem;
}
.case > p { margin-top: 12px; color: var(--ink-2); max-width: 44em; }
.beforeafter {
  display: grid;
  grid-template-columns: 1fr 150px 1fr;
  gap: 20px;
  align-items: stretch;
  margin-top: 30px;
}
.ba-col {
  padding: 22px 24px;
  border-radius: var(--r);
}
.ba-col.before { background: var(--paper-2); }
.ba-col.after { background: var(--accent-soft); }
.ba-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--muted);
}
.ba-col.after .ba-title { color: var(--accent); }
.ba-col ul { margin-top: 12px; }
.ba-col li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
  font-weight: 500;
  color: var(--ink-2);
  border-bottom: 1px dashed rgba(23, 26, 33, 0.12);
}
.ba-col li:last-child { border-bottom: 0; }
.ba-col li .ic { width: 16px; height: 16px; flex: none; color: var(--muted); }
.ba-col.after li .ic { color: var(--accent); }
.ba-col.after li.human { font-weight: 700; color: var(--ink); }
.ba-col.after li.human .ic { color: var(--cta); }
.ba-mid {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.ba-mid .bot { width: 76px; height: 88px; color: var(--ink); }
.ba-mid .name {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
}
.ba-mid .arrow {
  width: 40px;
  height: 20px;
  color: var(--line-strong);
}
.case-foot {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
  color: var(--ink-3);
}

/* ---------- 05 Fit ---------- */
.fit-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.fit {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  padding: 26px 28px;
  border-radius: var(--r);
  background: var(--white);
  border: 1px solid var(--line);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.fit:hover { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.fit .box {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 2px solid var(--accent);
  color: var(--accent);
}
.fit .box .ic { width: 22px; height: 22px; stroke-width: 2.4; }
.fit h3 { font-size: 1.1rem; }
.fit p { margin-top: 8px; font-size: 0.95rem; color: var(--ink-3); }
.fit .chips { margin-top: 12px; }
.fit.wide { grid-column: 1 / -1; }
.fit.wide .inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
}
.mid-cta {
  margin-top: 40px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 32px;
  border-radius: var(--r-lg);
  background: var(--ink);
  color: var(--on-dark);
}
.mid-cta p { font-size: 1.1rem; font-weight: 700; }
.mid-cta small { display: block; font-weight: 400; font-size: 0.88rem; color: var(--on-dark-muted); margin-top: 2px; }

/* ---------- 06 Problem (dark) ---------- */
.problems {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.problem {
  padding: 28px 30px;
  border-radius: var(--r);
  background: var(--dark-surface);
  border: 1px solid var(--dark-line);
}
.problem .pi {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: #ffb27a;
}
.problem .pi .ic { width: 22px; height: 22px; }
.problem h3 { margin-top: 16px; font-size: 1.15rem; }
.problem p { margin-top: 8px; color: var(--on-dark-muted); font-size: 0.95rem; }
.section-dark .statement {
  background: transparent;
  border-left-color: var(--cta);
  color: var(--on-dark);
  padding-left: 28px;
}

/* ---------- 07 Support (process cards) ---------- */
.section.sec-support {
  --support-blue: #155ce2;
  --support-red: #e5252d;
  --support-orange: #ff5d18;
  position: relative;
  isolation: isolate;
  min-height: calc(100svh - var(--header-h));
  padding: 46px 0 52px;
  background: #fff;
  overflow: clip;
}
.sec-support::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  right: -5%;
  width: 83%;
  height: 355px;
  background: repeating-linear-gradient(
    118deg,
    transparent 0 132px,
    rgba(231, 236, 244, 0.5) 132px 258px,
    transparent 258px 390px
  );
}
.sec-support .container {
  max-width: 1760px;
  padding-right: 68px;
  padding-left: 68px;
}
.support-top {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(0, 1.16fr);
  min-height: 318px;
  align-items: stretch;
}
.sec-support .support-head {
  position: relative;
  z-index: 3;
  align-self: center;
  max-width: none;
  margin: 0;
  padding: 0 0 30px;
}
.sec-support .eyebrow {
  gap: 18px;
  margin: 0 0 26px;
  color: var(--support-blue);
  font-size: 14px;
  letter-spacing: 0.14em;
}
.sec-support .eyebrow .num {
  min-width: 42px;
  height: 36px;
  border-radius: 7px;
  background: var(--support-blue);
  font-size: 14px;
}
.sec-support .support-head h2 {
  margin: 0;
  font-size: clamp(44px, 3.55vw, 60px);
  font-weight: 900;
  line-height: 1.48;
  letter-spacing: -0.04em;
  color: #151d2c;
}
.sec-support .support-head h2 em {
  color: var(--support-red);
  font-style: normal;
}
.support-hero-art {
  position: relative;
  min-width: 0;
  min-height: 318px;
}
.support-hand-note {
  position: absolute;
  z-index: 5;
  top: 4px;
  left: 25%;
  font-family: "Yomogi", cursive;
  font-size: clamp(25px, 2vw, 35px);
  line-height: 1.42;
  letter-spacing: 0.08em;
  color: #172033;
  transform: rotate(-5deg);
}
.support-hand-note::after {
  content: "";
  display: block;
  width: 74%;
  height: 16px;
  margin: 0 0 0 27%;
  border-top: 4px solid var(--support-red);
  border-radius: 50%;
  transform: rotate(-6deg);
}
.support-hero-route {
  position: absolute;
  z-index: 1;
  right: 9%;
  bottom: 2px;
  width: 88%;
  height: 188px;
  overflow: visible;
  fill: none;
  stroke: var(--support-orange);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 1 10;
}
.support-hero-route .support-route-arrow {
  fill: var(--support-orange);
  stroke: none;
}
.support-cloud {
  position: absolute;
  z-index: 3;
  bottom: 42px;
  left: 28%;
  width: 96px;
  height: auto;
}
.support-cloud-dot {
  position: absolute;
  z-index: 2;
  bottom: 20px;
  left: calc(28% + 44px);
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #7e8794;
}
.support-person {
  position: absolute;
  z-index: 3;
  right: 14%;
  bottom: 0;
  width: min(35%, 304px);
  height: auto;
}
.support-bot {
  position: absolute;
  z-index: 3;
  right: 1%;
  bottom: 8px;
  width: min(13%, 112px);
  height: auto;
}
.support-speech {
  position: absolute;
  z-index: 4;
  top: 46px;
  right: 0;
  display: grid;
  place-items: center;
  width: 174px;
  min-height: 104px;
  padding: 18px 20px;
  border-radius: 17px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(25, 32, 48, 0.1);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.65;
  color: #1a2231;
}
.support-speech::after {
  content: "";
  position: absolute;
  bottom: -12px;
  left: 24px;
  border-top: 13px solid #fff;
  border-right: 12px solid transparent;
  border-left: 12px solid transparent;
}
.support-process {
  position: relative;
  z-index: 6;
  container: support-process / inline-size;
}
.support-process__list {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 34px;
}
.support-process__card {
  --support-icon: #e84b35;
  --support-icon-bg: #fff0ee;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 210px;
  min-width: 0;
  padding: 20px 8px 17px;
  border: 1px solid #edf0f4;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(25, 32, 48, 0.075);
  text-align: center;
}
.support-process__card:nth-child(2) { --support-icon: #ff6b0a; --support-icon-bg: #fff3e9; }
.support-process__card:nth-child(3) { --support-icon: #f2a600; --support-icon-bg: #fff8e5; }
.support-process__card:nth-child(4) { --support-icon: #16be72; --support-icon-bg: #eaf9f1; }
.support-process__card:nth-child(5) { --support-icon: #3478f6; --support-icon-bg: #edf3ff; }
.support-process__card:nth-child(6) { --support-icon: #8c4bd8; --support-icon-bg: #f5eefc; }
.support-process__card:nth-child(7) { --support-icon: #d93960; --support-icon-bg: #fff0f4; }
.support-process__card:nth-child(8) { --support-icon: #985d32; --support-icon-bg: #f6efe8; }
.support-process__card:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -22px;
  width: 10px;
  height: 10px;
  border-right: 2px solid #969caa;
  border-bottom: 2px solid #969caa;
  transform: translateY(-50%) rotate(-45deg);
}
.support-process__step {
  flex: none;
  color: var(--fv-red, #e52028);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 1.2px;
  white-space: nowrap;
}
.support-process__illustration {
  display: grid;
  place-items: center;
  flex: none;
  width: 72px;
  height: 72px;
  margin-top: 12px;
  border-radius: 50%;
  background: var(--support-icon-bg);
  color: var(--support-icon);
}
.support-process__illustration svg {
  width: 40px;
  height: 40px;
  overflow: visible;
}
.support-process__title {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  justify-content: center;
  height: 44px;
  margin-top: 11px;
  color: #1b2130;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: 0;
  text-align: center;
}
.support-process__keep {
  white-space: nowrap;
}

@container support-process (max-width: 1330px) {
  .support-process__list { gap: 22px; }
  .support-process__card:not(:last-child)::after { right: -15px; }
  .support-process__title { font-size: 14.5px; }
}

@container support-process (max-width: 1039px) {
  .support-process__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px 20px;
  }
  .support-process__card:not(:last-child)::after { right: -14px; }
  .support-process__card:nth-child(4n)::after { display: none; }
}

@container support-process (max-width: 639px) {
  .support-process__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 12px;
  }
  .support-process__card {
    height: 190px;
    padding: 16px 9px;
  }
  .support-process__card::after { display: none; }
  .support-process__illustration {
    width: 64px;
    height: 64px;
    margin-top: 10px;
  }
  .support-process__illustration svg {
    width: 36px;
    height: 36px;
  }
  .support-process__title {
    height: 42px;
    margin-top: 10px;
    font-size: 14.5px;
  }
}
.support-copy {
  margin-top: 72px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 100px;
  align-items: start;
}
.support-copy .big {
  position: relative;
  max-width: 630px;
  padding-bottom: 26px;
  color: #151d2c;
  font-size: clamp(23px, 1.9vw, 32px);
  font-weight: 900;
  line-height: 1.65;
  letter-spacing: -0.025em;
}
.support-copy .big::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 48px;
  border-top: 4px solid var(--support-red);
}
.support-copy p:not(.big) {
  max-width: 680px;
  color: #667187;
  font-size: 18px;
  line-height: 2;
}

@media (min-width: 1181px) and (max-height: 820px) {
  .section.sec-support { padding-top: 22px; padding-bottom: 24px; }
  .support-top,
  .support-hero-art { min-height: 226px; }
  .sec-support .support-head { padding-bottom: 10px; }
  .sec-support .eyebrow { margin-bottom: 13px; font-size: 12px; }
  .sec-support .eyebrow .num { min-width: 38px; height: 30px; font-size: 12px; }
  .sec-support .support-head h2 { font-size: clamp(39px, 3.25vw, 53px); line-height: 1.38; }
  .support-hand-note { top: 0; font-size: clamp(21px, 1.65vw, 28px); }
  .support-hand-note::after { border-top-width: 3px; }
  .support-hero-route { bottom: -7px; height: 145px; }
  .support-cloud { bottom: 25px; width: 70px; }
  .support-cloud-dot { bottom: 10px; left: calc(28% + 32px); width: 6px; height: 6px; }
  .support-person { width: min(30%, 226px); }
  .support-bot { width: min(11%, 82px); }
  .support-speech { top: 25px; width: 148px; min-height: 82px; padding: 12px 16px; font-size: 14px; }
  .support-process__card { height: 178px; padding-top: 14px; padding-bottom: 13px; }
  .support-process__step { font-size: 12px; }
  .support-process__illustration { width: 60px; height: 60px; margin-top: 7px; }
  .support-process__illustration svg { width: 34px; height: 34px; }
  .support-process__title { height: 38px; margin-top: 7px; font-size: 14px; line-height: 1.35; }
  .support-copy { margin-top: 27px; gap: 70px; }
  .support-copy .big { padding-bottom: 16px; font-size: 23px; line-height: 1.5; }
  .support-copy p:not(.big) { font-size: 14px; line-height: 1.75; }
}

@media (max-width: 1180px) {
  .section.sec-support { padding-top: 54px; padding-bottom: 64px; }
  .sec-support .container { padding-right: 32px; padding-left: 32px; }
  .support-top { min-height: 286px; }
  .support-hero-art { min-height: 286px; }
  .sec-support .support-head h2 { font-size: clamp(40px, 4.8vw, 54px); }
  .support-speech { width: 145px; font-size: 14px; }
  .support-copy { gap: 54px; }
  .support-copy p:not(.big) { font-size: 15px; }
}

@media (max-width: 900px) {
  .section.sec-support { padding-top: 52px; padding-bottom: 62px; }
  .support-top { grid-template-columns: minmax(0, 1fr); }
  .sec-support .support-head { padding-bottom: 18px; }
  .support-hero-art { min-height: 300px; }
  .support-copy { gap: 22px; }
  .support-copy .big { padding-bottom: 19px; }
}

@media (max-width: 600px) {
  .section.sec-support { padding-top: 46px; padding-bottom: 54px; }
  .sec-support .container { padding-right: 18px; padding-left: 18px; }
  .sec-support::before { right: -70%; width: 150%; height: 520px; }
  .sec-support .eyebrow { gap: 12px; margin-bottom: 20px; font-size: 11px; }
  .sec-support .eyebrow .num { min-width: 40px; height: 28px; font-size: 12px; }
  .sec-support .support-head h2 { font-size: clamp(34px, 10.5vw, 44px); line-height: 1.42; }
  .support-hero-art { min-height: 230px; }
  .support-hand-note { top: 4px; left: 2%; font-size: 20px; }
  .support-hero-route { right: 4%; bottom: -8px; width: 96%; height: 135px; }
  .support-cloud { bottom: 27px; left: 15%; width: 64px; }
  .support-cloud-dot { bottom: 13px; left: calc(15% + 29px); width: 5px; height: 5px; }
  .support-person { right: 15%; width: 43%; }
  .support-bot { right: 1%; width: 16%; }
  .support-speech { top: 19px; right: 0; width: 116px; min-height: 70px; padding: 10px; border-radius: 13px; font-size: 12px; }
  .support-process__card { height: 184px; }
  .support-copy { margin-top: 38px; }
  .support-copy .big { font-size: 20px; }
  .support-copy p:not(.big) { font-size: 14px; line-height: 1.9; }
}

/* ---------- 08 PoC ---------- */
.poc-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.poc-step {
  position: relative;
  padding: 26px 24px 24px;
  border-radius: var(--r);
  background: var(--white);
  border: 1px solid var(--line);
}
.poc-step .n {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--white);
  background: var(--accent);
  padding: 3px 10px;
  border-radius: 6px;
}
.poc-step h3 { margin-top: 14px; font-size: 1.15rem; }
.poc-step p { margin-top: 8px; font-size: 0.92rem; color: var(--ink-3); }
.metrics {
  margin-top: 36px;
  padding: 28px 32px;
  border-radius: var(--r-lg);
  background: var(--white);
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  align-items: center;
}
.metrics .col-title { margin-bottom: 4px; }
.metrics h3 { font-size: 1.1rem; }
.metrics .chips .chip { background: var(--paper-2); color: var(--ink-2); font-weight: 600; }
.poc-note {
  margin-top: 20px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 22px;
  border-radius: 12px;
  background: var(--warn-soft);
  color: #6b4700;
  font-size: 0.95rem;
  line-height: 1.7;
}
.poc-note .ic { margin-top: 5px; flex: none; }
.poc-note strong { color: #4d3300; }

/* ---------- 09 Security tiers ---------- */
.tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.tier {
  border-radius: var(--r);
  background: var(--white);
  border: 1px solid var(--line);
  overflow: hidden;
}
.tier-head {
  padding: 20px 24px;
  color: var(--white);
}
.tier-head .k {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  opacity: 0.85;
}
.tier-head h3 { margin-top: 4px; font-size: 1.2rem; }
.tier.auto .tier-head { background: var(--ok); }
.tier.approve .tier-head { background: var(--warn); }
.tier.never .tier-head { background: var(--stop); }
.tier ul { padding: 12px 24px 18px; }
.tier li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
  font-weight: 500;
  color: var(--ink-2);
}
.tier li:last-child { border-bottom: 0; }
.tier li .ic { width: 16px; height: 16px; flex: none; }
.tier.auto li .ic { color: var(--ok); }
.tier.approve li .ic { color: var(--warn); }
.tier.never li .ic { color: var(--stop); }
.security-note {
  margin-top: 28px;
  padding: 24px 28px;
  border-radius: var(--r);
  background: var(--white);
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
  color: var(--ink-2);
}
.security-note .ic { width: 24px; height: 24px; color: var(--accent); margin-top: 4px; }

/* ---------- 10 Flow ---------- */
.timeline-arrow {
  position: relative;
  isolation: isolate;
  display: grid;
  align-items: center;
  min-height: 220px;
  padding: 30px 92px 30px 30px;
}
.timeline-arrow__frame {
  position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 12px 24px rgba(36, 83, 216, 0.08));
}
.timeline-arrow__frame path {
  fill: rgba(255, 255, 255, 0.88);
  stroke: var(--accent);
  stroke-width: 5px;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}
.timeline-arrow__frame--vertical { display: none; }
.timeline {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 12px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 5.5%;
  right: 5.5%;
  top: 22px;
  border-top: 2px dashed var(--line-strong);
}
.tl-item {
  position: relative;
  text-align: center;
}
.tl-item .dot {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin: 0 auto;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-3);
}
.tl-item.phase-free .dot { border-color: var(--accent); color: var(--accent); }
.tl-item.phase-poc .dot { border-color: var(--ink); color: var(--ink); }
.tl-item.phase-live .dot { background: var(--cta); border-color: var(--cta); color: var(--white); }
.tl-item .t {
  margin-top: 12px;
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 1.4;
}
.tl-item .ph {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.timeline-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 28px;
  font-size: 0.86rem;
  color: var(--ink-3);
}
.timeline-legend li { display: inline-flex; align-items: center; gap: 8px; }
.timeline-legend .sw {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--line-strong);
}
.timeline-legend .sw.free { border-color: var(--accent); }
.timeline-legend .sw.poc { border-color: var(--ink); }
.timeline-legend .sw.live { background: var(--cta); border-color: var(--cta); }

/* ---------- 11 FAQ ---------- */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 32px;
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.6;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .q {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: 4px;
}
.faq-item summary .plus {
  flex: none;
  margin-left: auto;
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 4px;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 12px;
  height: 2px;
  background: var(--ink);
  transform: translate(-50%, -50%);
  transition: transform 0.2s ease;
}
.faq-item summary .plus::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-item[open] summary .plus::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq-body {
  padding: 0 0 22px 38px;
  color: var(--ink-2);
  font-size: 0.95rem;
}

/* ---------- 12 Final CTA / contact ---------- */
.contact {
  padding: 104px 0;
  background: var(--ink);
  color: var(--on-dark);
  scroll-margin-top: var(--header-h);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact h2 {
  margin-top: 18px;
  font-size: clamp(1.7rem, 3.15vw, 2.5rem);
  font-weight: 900;
}
.contact .lead {
  margin-top: 20px;
  color: var(--on-dark-muted);
  max-width: 34em;
}
.contact-team {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  margin-top: 36px;
}
.contact-team .bot { width: 52px; height: 60px; }
.contact-team .bot.lead-bot { width: 74px; height: 86px; color: var(--on-dark); }
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.form-card {
  padding: 32px;
  border-radius: var(--r-lg);
  background: var(--white);
  color: var(--ink);
}
.form-card h3 { font-size: 1.15rem; }
.form-card .hint { margin-top: 4px; font-size: 0.88rem; color: var(--ink-3); }
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink-2);
}
.field label .req {
  margin-left: 6px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--cta);
  letter-spacing: 0.1em;
}
.field input,
.field select,
.field textarea {
  font: inherit;
  font-size: 0.95rem;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1.5px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field textarea { min-height: 96px; resize: vertical; line-height: 1.6; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.choice {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.choice label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1.5px solid var(--line);
  background: var(--paper);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
}
.choice input { accent-color: var(--cta); width: 16px; height: 16px; margin: 0; }
.choice label:has(input:checked) {
  border-color: var(--cta);
  background: var(--cta-soft);
}
.form-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 20px;
}
.form-foot .note { max-width: 24em; }
.form-thanks {
  padding: 28px 24px;
  border-radius: 14px;
  background: var(--ok-soft);
  color: #146b47;
  text-align: center;
  font-weight: 700;
  margin-top: 20px;
}
.form-thanks small { display: block; margin-top: 6px; font-weight: 400; font-size: 0.88rem; }

/* ---------- Footer ---------- */
.site-footer {
  padding: 48px 0 36px;
  background: #0f1116;
  color: var(--on-dark-muted);
  font-size: 0.86rem;
}
.footer-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--dark-line);
}
.site-footer .brand .bot { color: var(--on-dark); }
.site-footer .brand-text { color: var(--on-dark); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 4px 20px; }
.footer-nav a:hover { color: var(--on-dark); }
.footer-notes {
  margin-top: 24px;
  display: grid;
  gap: 8px;
  max-width: 62em;
  line-height: 1.8;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  margin-top: 28px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .features { grid-template-columns: repeat(3, 1fr); }
  .timeline-arrow { padding: 32px 72px 32px 28px; }
  .timeline { grid-template-columns: repeat(4, 1fr); gap: 28px 12px; }
  .timeline::before { display: none; }
  .team-member { --r: 150px; }
}

@media (max-width: 900px) {
  .section { padding: 80px 0; }
  .contact { padding: 80px 0; }
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 12px 16px 20px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 40px rgba(23, 26, 33, 0.12);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }
  .nav.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .nav a { padding: 12px 10px; font-size: 1rem; }
  .nav-toggle { display: block; }
  .header-inner { gap: 12px; }

  .about-grid { grid-template-columns: 1fr; }
  .compare { grid-template-columns: 1fr; }
  .how-grid { grid-template-columns: 1fr; }
  .stage { position: static; }
  .panel-cols { grid-template-columns: 1fr; gap: 24px; }
  .adopters { grid-template-columns: 1fr; }
  .adoption-copy { grid-template-columns: 1fr; }
  .beforeafter { grid-template-columns: 1fr; }
  .ba-mid { flex-direction: row; gap: 14px; }
  .ba-mid .arrow { transform: rotate(90deg); }
  .fit-list { grid-template-columns: 1fr; }
  .fit.wide .inner { grid-template-columns: 1fr; gap: 8px; }
  .problems { grid-template-columns: 1fr; }
  .support-copy { grid-template-columns: 1fr; }
  .poc-steps { grid-template-columns: 1fr 1fr; }
  .metrics { grid-template-columns: 1fr; }
  .tiers { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .case { padding: 28px 24px; }
  .tab-panel { padding: 26px 22px; }
}

@media (max-width: 600px) {
  body { font-size: 15px; }
  .container { padding: 0 18px; }
  .section-head { margin-bottom: 40px; }
  .features { grid-template-columns: 1fr; gap: 10px; }
  .feature { display: grid; grid-template-columns: 42px 1fr; gap: 14px; align-items: start; padding: 16px 16px; }
  .feature h3 { margin-top: 0; }
  .feature p { margin-top: 4px; }
  .team { max-width: 340px; }
  .team-member { --r: 118px; width: 80px; margin-left: -40px; }
  .team-member .bot { width: 46px; height: 54px; }
  .team-member .role { font-size: 0.7rem; }
  .team-center .bot { width: 84px; height: 98px; }
  .stage-outputs { grid-template-columns: 1fr; }
  .steps li { grid-template-columns: 36px 1fr; }
  .steps .n { width: 36px; height: 36px; }
  .steps li + li::before { left: 17px; }
  .steps .tag { grid-column: 2; justify-self: start; }
  .poc-steps { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .timeline-arrow {
    min-height: 650px;
    padding: 30px 22px 92px;
  }
  .timeline-arrow__frame--horizontal { display: none; }
  .timeline-arrow__frame--vertical { display: block; }
  .form-grid { grid-template-columns: 1fr; }
  .choice { grid-template-columns: 1fr; }
  .mid-cta { padding: 24px 22px; }
  .mid-cta .btn { width: 100%; }
  .statement { padding: 24px 22px; }
  .contact-actions .btn { width: 100%; }
}