:root {
  color-scheme: dark;
  --bg: #07090d;
  --bg-2: #0a0d13;
  --panel: rgba(15, 19, 27, 0.76);
  --panel-solid: #0e1219;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f4f7fb;
  --muted: #9ba7b7;
  --muted-2: #728095;
  --cyan: #8ee9ff;
  --cyan-2: #3fd6ff;
  --violet: #a997ff;
  --amber: #ffc977;
  --red: #ff8a96;
  --green: #9ef0c3;
  --shadow: 0 28px 80px rgba(0,0,0,.44);
  --radius: 22px;
  --shell: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 10% 0%, rgba(69, 121, 255, .08), transparent 26%),
    radial-gradient(circle at 90% 10%, rgba(145, 76, 255, .08), transparent 24%),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
code, pre { font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; }

.shell { width: min(calc(100% - 40px), var(--shell)); margin-inline: auto; }
.narrow { max-width: 880px; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 1000; padding: 10px 14px; border-radius: 10px; background: white; color: black; }
.skip-link:focus { top: 12px; }

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  background: linear-gradient(to bottom, rgba(7,9,13,.86), rgba(7,9,13,.54), transparent);
  backdrop-filter: blur(10px);
  transition: .25s ease;
}
.site-header.scrolled { background: rgba(7,9,13,.82); border-bottom-color: var(--line); box-shadow: 0 12px 42px rgba(0,0,0,.18); }
.nav-wrap { height: 72px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 26px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 700; letter-spacing: -.02em; font-size: 18px; width: max-content; }
.brand-mark { position: relative; display: inline-grid; place-items: center; width: 28px; height: 28px; }
.brand-mark::before { content: ""; position: absolute; inset: 4px; border: 1px solid rgba(142,233,255,.42); transform: rotate(45deg); border-radius: 3px; box-shadow: 0 0 24px rgba(63,214,255,.16); }
.brand-mark i { position: absolute; width: 3px; height: 3px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.brand-mark i:nth-child(1) { transform: translate(-7px, 3px); }
.brand-mark i:nth-child(2) { transform: translate(6px, -5px); }
.brand-mark i:nth-child(3) { transform: translate(4px, 8px); }
.desktop-nav { display: flex; align-items: center; gap: 28px; color: var(--muted); font-size: 14px; }
.desktop-nav a:hover { color: var(--text); }
.nav-cta { justify-self: end; padding: 10px 15px; border: 1px solid var(--line-strong); border-radius: 999px; font-size: 13px; color: #eaf7ff; background: rgba(255,255,255,.035); }
.nav-cta:hover { border-color: rgba(142,233,255,.36); background: rgba(142,233,255,.06); }

.hero { position: relative; overflow: hidden; padding: 150px 0 100px; min-height: 760px; display: flex; align-items: center; }
.hero-grid { position: absolute; inset: 0; opacity: .28; background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size: 56px 56px; mask-image: linear-gradient(to bottom, black, transparent 82%); }
.hero-grid::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 54% 46%, transparent 0 12%, rgba(7,9,13,.25) 44%, rgba(7,9,13,.95) 78%); }
.orb { position: absolute; border-radius: 50%; filter: blur(54px); pointer-events: none; }
.orb-a { width: 420px; height: 420px; right: 2%; top: 12%; background: rgba(63,214,255,.07); }
.orb-b { width: 330px; height: 330px; left: 2%; bottom: 8%; background: rgba(169,151,255,.06); }
.hero-layout { position: relative; display: grid; grid-template-columns: 1.02fr .98fr; gap: 68px; align-items: center; }
.eyebrow, .section-tag { text-transform: uppercase; letter-spacing: .14em; font-size: 11px; font-weight: 800; color: var(--cyan); }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; padding: 7px 10px; border-radius: 999px; border: 1px solid rgba(142,233,255,.15); background: rgba(142,233,255,.035); }
.pulse-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px rgba(142,233,255,.05), 0 0 16px rgba(142,233,255,.7); }
.hero h1 { margin: 24px 0 22px; max-width: 750px; font-size: clamp(54px, 6.7vw, 84px); line-height: .98; letter-spacing: -.055em; font-weight: 690; }
.hero h1 span { color: transparent; background: linear-gradient(115deg, #f3fbff 0%, var(--cyan) 42%, #bac7ff 100%); -webkit-background-clip: text; background-clip: text; }
.hero-lede { margin: 0; max-width: 700px; color: #b5c0cf; font-size: clamp(17px, 2vw, 20px); line-height: 1.62; }
.hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }
.button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 0 18px; border-radius: 12px; border: 1px solid transparent; font-size: 14px; font-weight: 700; transition: .2s ease; }
.button.primary { color: #071015; background: linear-gradient(135deg, #dff9ff, var(--cyan)); box-shadow: 0 10px 34px rgba(63,214,255,.13); }
.button.primary:hover { transform: translateY(-1px); box-shadow: 0 14px 38px rgba(63,214,255,.22); }
.button.secondary { color: #e9eef6; background: rgba(255,255,255,.035); border-color: var(--line-strong); }
.button.secondary:hover { border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.06); }
.button.full { width: 100%; }
.button.disabled { color: #6f7987; border-color: var(--line); background: rgba(255,255,255,.02); cursor: not-allowed; }
.hero-meta { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px 18px; color: var(--muted-2); font-size: 12px; }
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta span::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: #536074; }

.hero-stage { position: relative; }
.stage-label { margin: 0 0 12px 12px; color: #66758a; letter-spacing: .16em; font-size: 9px; font-weight: 800; }
.flow-card { position: relative; padding: 24px; border: 1px solid rgba(255,255,255,.11); border-radius: 26px; background: linear-gradient(180deg, rgba(18,23,33,.92), rgba(10,13,19,.96)); box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.03); overflow: hidden; }
.flow-card::before { content: ""; position: absolute; width: 300px; height: 300px; right: -140px; top: -170px; border-radius: 50%; background: rgba(63,214,255,.08); filter: blur(20px); }
.flow-row { display: grid; grid-template-columns: 1fr 42px 1fr 42px 1fr; align-items: center; position: relative; }
.flow-node { min-width: 0; padding: 16px 13px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.025); }
.flow-node span { display: block; color: #607086; font-size: 9px; letter-spacing: .13em; }
.flow-node strong { display: block; margin-top: 8px; font-size: 14px; }
.flow-node small { display: block; margin-top: 2px; color: var(--muted-2); font-size: 10px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.guard-node { border-color: rgba(142,233,255,.22); background: rgba(142,233,255,.045); box-shadow: inset 0 0 26px rgba(63,214,255,.03); }
.provider-node { border-color: rgba(158,240,195,.18); }
.flow-line { height: 1px; background: #2d3747; position: relative; overflow: hidden; }
.flow-line b { position: absolute; top: -2px; width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); animation: travel 2.4s linear infinite; }
.flow-line:nth-of-type(4) b { animation-delay: .8s; }
@keyframes travel { from { left: -6px; } to { left: calc(100% + 6px); } }
.fault-banner { margin: 22px 0 14px; display: flex; align-items: center; justify-content: center; gap: 9px; min-height: 39px; border: 1px solid rgba(255,138,150,.18); border-radius: 10px; background: rgba(255,138,150,.045); color: #dbaab0; font-size: 12px; }
.fault-banner span { display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; color: var(--red); background: rgba(255,138,150,.07); }
.state-card { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px; border-radius: 14px; border: 1px solid rgba(255,201,119,.22); background: linear-gradient(120deg, rgba(255,201,119,.07), rgba(255,255,255,.018)); }
.state-kicker { display: block; color: #8e7d63; text-transform: uppercase; font-size: 9px; letter-spacing: .14em; }
.state-card strong { display: block; margin-top: 3px; color: var(--amber); letter-spacing: .06em; font-size: 18px; }
.blocked-retry { color: #8591a1; font-size: 11px; }
.blocked-retry b { color: var(--red); font-weight: 700; }
.reconcile-row { margin-top: 14px; display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 16px 2px 2px; }
.reconcile-icon { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; border: 1px solid rgba(142,233,255,.16); color: var(--cyan); background: rgba(142,233,255,.04); }
.reconcile-row strong { display: block; font-size: 11px; }
.reconcile-row small { display: block; margin-top: 2px; color: var(--muted-2); font-size: 9px; }
.status-pill { padding: 5px 8px; border-radius: 999px; background: rgba(158,240,195,.07); color: var(--green); border: 1px solid rgba(158,240,195,.16); font-size: 8px; letter-spacing: .08em; white-space: nowrap; }

section:not(.hero) { padding: 110px 0; }
.section-tag { margin: 0 0 16px; }
.section-heading { margin-bottom: 44px; }
.section-heading h2, .problem-band h2 { margin: 0; font-size: clamp(38px, 5vw, 60px); line-height: 1.05; letter-spacing: -.045em; font-weight: 650; }
.problem-band h2 em { color: var(--amber); font-style: normal; }
.section-heading.split { display: grid; grid-template-columns: 1.2fr .8fr; gap: 80px; align-items: end; }
.section-heading.split > p, .section-heading.center > p { margin: 0; color: var(--muted); max-width: 560px; font-size: 16px; }
.section-heading.center { text-align: center; max-width: 800px; margin-inline: auto; }
.section-heading.center > p { margin-inline: auto; }
.section-lede { color: var(--muted); font-size: 18px; line-height: 1.7; }
.problem-band { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: linear-gradient(180deg, rgba(255,255,255,.015), rgba(255,255,255,.004)); }
.problem-band .section-lede { margin: 26px 0 0; }
.risk-grid { margin-top: 48px; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.risk-card { padding: 26px; border-radius: var(--radius); border: 1px solid var(--line); background: rgba(255,255,255,.018); }
.risk-card.bad { box-shadow: inset 0 0 50px rgba(255,138,150,.02); }
.risk-card.good { border-color: rgba(142,233,255,.14); box-shadow: inset 0 0 50px rgba(63,214,255,.025); }
.risk-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; }
.risk-head span { font-weight: 700; }
.risk-head b { padding: 5px 8px; border-radius: 999px; font-size: 9px; letter-spacing: .12em; }
.bad .risk-head b { color: var(--red); background: rgba(255,138,150,.06); border: 1px solid rgba(255,138,150,.12); }
.good .risk-head b { color: var(--green); background: rgba(158,240,195,.06); border: 1px solid rgba(158,240,195,.12); }
.risk-sequence { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; color: #9ca8b8; font-family: ui-monospace, monospace; font-size: 11px; }
.risk-sequence span { padding: 7px 9px; border-radius: 8px; background: rgba(255,255,255,.035); border: 1px solid var(--line); }
.risk-sequence .danger { color: var(--red); border-color: rgba(255,138,150,.14); background: rgba(255,138,150,.04); }
.risk-sequence .safe { color: var(--cyan); border-color: rgba(142,233,255,.14); background: rgba(142,233,255,.04); }
.risk-sequence i { color: #4b5667; font-style: normal; }
.risk-card p { margin: 24px 0 0; color: var(--muted); font-size: 14px; }

.positioning-section { background: radial-gradient(circle at center, rgba(63,214,255,.045), transparent 45%); }
.stack-diagram { max-width: 900px; margin: 0 auto; }
.stack-layer { display: grid; grid-template-columns: 180px 1fr auto; gap: 18px; align-items: center; padding: 22px 24px; border: 1px solid var(--line); border-radius: 16px; }
.stack-layer span { text-transform: uppercase; letter-spacing: .12em; color: var(--muted-2); font-size: 9px; font-weight: 800; }
.stack-layer b { font-size: 16px; }
.stack-layer small { color: var(--muted-2); font-size: 11px; text-align: right; }
.stack-layer.muted { background: rgba(255,255,255,.018); }
.agentk-layer { border-color: rgba(142,233,255,.26); background: linear-gradient(90deg, rgba(142,233,255,.075), rgba(169,151,255,.045)); box-shadow: 0 18px 58px rgba(63,214,255,.07); }
.agentk-layer span { color: var(--cyan); }
.stack-connector { padding: 10px 0; color: #536174; text-align: center; font-size: 10px; letter-spacing: .08em; }

.mechanics { border-top: 1px solid var(--line); }
.steps-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.steps-grid li { min-height: 230px; padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: linear-gradient(180deg, rgba(255,255,255,.022), rgba(255,255,255,.009)); }
.steps-grid li:nth-child(5), .steps-grid li:nth-child(6), .steps-grid li:nth-child(7) { grid-column: span 1; }
.steps-grid li:nth-child(7) { grid-column: span 2; }
.steps-grid li > span { color: #536174; font-family: ui-monospace, monospace; font-size: 11px; }
.steps-grid h3 { margin: 38px 0 10px; font-size: 20px; letter-spacing: -.02em; }
.steps-grid p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }

.proof-section { background: linear-gradient(180deg, rgba(255,255,255,.018), rgba(255,255,255,0)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.proof-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.proof-copy h2 { margin: 0; font-size: clamp(38px, 4.4vw, 55px); line-height: 1.05; letter-spacing: -.045em; }
.proof-copy > p:not(.section-tag) { color: var(--muted); font-size: 15px; line-height: 1.7; }
.proof-list { margin-top: 28px; display: grid; gap: 12px; }
.proof-list > div { display: grid; grid-template-columns: 28px 1fr; gap: 12px; align-items: start; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.06); }
.proof-list > div > span { color: var(--cyan); }
.proof-list p { margin: 0; }
.proof-list b { display: block; font-size: 13px; }
.proof-list small { display: block; margin-top: 2px; color: var(--muted-2); font-size: 11px; line-height: 1.5; }
.terminal-card { border: 1px solid rgba(255,255,255,.13); border-radius: 20px; background: #090c11; box-shadow: var(--shadow); overflow: hidden; }
.terminal-top { height: 46px; display: flex; align-items: center; gap: 7px; padding: 0 16px; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.018); }
.terminal-top span { width: 8px; height: 8px; border-radius: 50%; background: #343b48; }
.terminal-top em { margin-left: auto; color: #5f6d80; font-style: normal; font-size: 10px; }
.terminal-card pre { margin: 0; padding: 28px; overflow: auto; color: #c6d0de; font-size: 12px; line-height: 1.8; }
.cyan { color: var(--cyan); }.amber { color: var(--amber); }.red { color: var(--red); }.green { color: var(--green); }.violet { color: var(--violet); }.dim { color: #586579; }

.install-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 18px; align-items: stretch; }
.install-card, .code-card { border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.018); }
.install-card { padding: 28px; display: flex; flex-direction: column; justify-content: center; }
.install-label { margin-bottom: 12px; color: var(--muted-2); text-transform: uppercase; letter-spacing: .12em; font-size: 9px; font-weight: 800; }
.copy-line { display: grid; grid-template-columns: 1fr auto; gap: 10px; padding: 9px 9px 9px 14px; align-items: center; border: 1px solid rgba(142,233,255,.14); border-radius: 12px; background: #090d12; }
.copy-line code { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #dff9ff; font-size: 12px; }
.copy-line button { border: 0; border-radius: 8px; padding: 7px 9px; background: rgba(142,233,255,.08); color: var(--cyan); cursor: pointer; font-size: 10px; font-weight: 700; }
.install-notes { margin-top: 18px; display: grid; gap: 7px; color: var(--muted-2); font-size: 11px; }
.install-notes span::before { content: "✓"; margin-right: 8px; color: #5e7384; }
.code-card { overflow: hidden; }
.code-top { height: 46px; display: flex; align-items: center; justify-content: space-between; padding: 0 18px; border-bottom: 1px solid var(--line); color: #8794a6; font-size: 11px; }
.code-top small { color: #596678; }
.code-card pre { margin: 0; padding: 26px; overflow: auto; color: #c8d2df; font-size: 12px; line-height: 1.75; }

.access-section { background: radial-gradient(circle at 50% 10%, rgba(169,151,255,.055), transparent 34%), linear-gradient(180deg, rgba(255,255,255,.012), transparent); border-top: 1px solid var(--line); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: stretch; }
.price-card { position: relative; min-height: 520px; padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(180deg, rgba(255,255,255,.023), rgba(255,255,255,.01)); display: flex; flex-direction: column; }
.price-card.featured { border-color: rgba(142,233,255,.24); box-shadow: 0 28px 74px rgba(63,214,255,.055), inset 0 1px 0 rgba(142,233,255,.08); transform: translateY(-10px); }
.price-card.future { opacity: .74; }
.founding-ribbon { position: absolute; top: 16px; right: 16px; padding: 5px 7px; border-radius: 999px; background: rgba(142,233,255,.07); color: var(--cyan); border: 1px solid rgba(142,233,255,.14); font-size: 8px; letter-spacing: .12em; font-weight: 800; }
.price-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.price-top span { font-size: 16px; font-weight: 700; }
.price-top b { color: #657286; font-size: 9px; letter-spacing: .06em; text-transform: uppercase; }
.price { margin-top: 26px; font-size: 38px; letter-spacing: -.035em; font-weight: 650; }
.price small { display: block; margin-top: 2px; color: var(--muted-2); font-size: 11px; font-weight: 500; letter-spacing: 0; }
.price-card > p { color: var(--muted); font-size: 13px; line-height: 1.6; }
.price-card ul { list-style: none; padding: 18px 0 24px; margin: 8px 0 auto; border-top: 1px solid var(--line); display: grid; gap: 12px; }
.price-card li { position: relative; padding-left: 18px; color: #a9b4c3; font-size: 12px; }
.price-card li::before { content: "·"; position: absolute; left: 3px; color: var(--cyan); }
.founding-note { margin-top: 26px; padding: 20px 22px; border: 1px solid rgba(255,201,119,.15); border-radius: 16px; background: rgba(255,201,119,.035); display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; }
.founding-note > div { display: grid; grid-template-columns: 32px 1fr; gap: 12px; align-items: start; }
.lock-mark { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 8px; border: 1px solid rgba(255,201,119,.16); color: var(--amber); }
.founding-note p { margin: 0; }
.founding-note b { display: block; font-size: 12px; }
.founding-note small { display: block; margin-top: 3px; color: #8e8376; font-size: 10px; line-height: 1.55; }
.founding-cta { max-width: 290px; color: #9b8c7a; font-size: 10px; text-align: right; }

.boundaries-section { border-top: 1px solid var(--line); }
.boundary-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.boundary-grid > div { padding: 24px; border-left: 1px solid rgba(255,255,255,.1); }
.boundary-grid strong { font-size: 14px; }
.boundary-grid p { margin: 10px 0 0; color: var(--muted-2); font-size: 12px; line-height: 1.65; }

.final-cta { padding-top: 20px !important; }
.final-card { min-height: 260px; padding: 54px; display: flex; align-items: center; justify-content: space-between; gap: 40px; border: 1px solid rgba(142,233,255,.16); border-radius: 28px; background: radial-gradient(circle at 78% 16%, rgba(63,214,255,.10), transparent 28%), linear-gradient(135deg, rgba(142,233,255,.045), rgba(169,151,255,.03)); box-shadow: inset 0 1px 0 rgba(255,255,255,.03); }
.final-card h2 { margin: 0; font-size: clamp(38px, 5vw, 60px); letter-spacing: -.05em; line-height: 1; }
.final-card p:not(.section-tag) { margin: 16px 0 0; max-width: 610px; color: var(--muted); }

footer { padding: 38px 0 48px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1fr auto auto; gap: 50px; align-items: end; }
.footer-brand { font-size: 16px; }
.footer-grid p { margin: 8px 0 0; color: #657286; font-size: 11px; }
.footer-links { display: flex; gap: 18px; color: #748195; font-size: 11px; }
.footer-links a:hover { color: var(--text); }
.footer-meta { display: grid; gap: 4px; color: #586578; font-size: 10px; text-align: right; }

.toast { position: fixed; left: 50%; bottom: 24px; z-index: 100; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; padding: 10px 14px; border-radius: 10px; background: #eef9ff; color: #071015; font-size: 11px; font-weight: 700; transition: .22s ease; }
.toast.show { transform: translate(-50%, 0); opacity: 1; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: .08s; }
.delay-2 { transition-delay: .16s; }

@media (max-width: 1020px) {
  .desktop-nav { display: none; }
  .nav-wrap { grid-template-columns: 1fr auto; }
  .hero-layout, .proof-layout { grid-template-columns: 1fr; }
  .hero { padding-top: 132px; }
  .hero-copy { max-width: 800px; }
  .hero-stage { max-width: 700px; }
  .section-heading.split { grid-template-columns: 1fr; gap: 24px; align-items: start; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid li:nth-child(7) { grid-column: span 2; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 720px; margin-inline: auto; }
  .price-card { min-height: 0; }
  .price-card.featured { transform: none; }
  .boundary-grid { grid-template-columns: repeat(2, 1fr); }
  .install-grid { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .shell { width: min(calc(100% - 28px), var(--shell)); }
  .nav-wrap { height: 64px; }
  .nav-cta { font-size: 11px; padding: 8px 11px; }
  .hero { min-height: auto; padding: 118px 0 72px; }
  .hero h1 { font-size: clamp(46px, 15vw, 68px); }
  .hero-lede { font-size: 16px; }
  .hero-actions { align-items: stretch; }
  .hero-actions .button { flex: 1 1 100%; }
  .flow-card { padding: 15px; border-radius: 18px; }
  .flow-row { grid-template-columns: 1fr 18px 1fr 18px 1fr; }
  .flow-node { padding: 11px 7px; }
  .flow-node strong { font-size: 11px; }
  .flow-node small { font-size: 8px; }
  .state-card { align-items: flex-start; flex-direction: column; }
  .reconcile-row { grid-template-columns: auto 1fr; }
  .status-pill { grid-column: 2; width: max-content; }
  section:not(.hero) { padding: 78px 0; }
  .problem-band h2, .section-heading h2 { font-size: clamp(34px, 10vw, 48px); }
  .risk-grid { grid-template-columns: 1fr; }
  .stack-layer { grid-template-columns: 1fr; gap: 5px; }
  .stack-layer small { text-align: left; }
  .steps-grid { grid-template-columns: 1fr; }
  .steps-grid li, .steps-grid li:nth-child(7) { grid-column: span 1; min-height: 190px; }
  .boundary-grid { grid-template-columns: 1fr; }
  .founding-note { grid-template-columns: 1fr; }
  .founding-cta { max-width: none; text-align: left; }
  .final-card { padding: 34px 26px; align-items: flex-start; flex-direction: column; }
  .final-card .button { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; align-items: start; }
  .footer-meta { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}