@import url("https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700;800&display=swap");

:root {
  color-scheme: dark;
  --bg: #0b0f14;
  --surface: #121820;
  --surface-2: #172028;
  --ink: #f1f3ee;
  --muted: #98a3a6;
  --line: #263039;
  --accent: #c6f27b;
  --blue: #9fbfff;
  --mono: "DM Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
  --sans: Manrope, "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
a { color: inherit; text-decoration: none; }
button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
::selection { background: var(--accent); color: #0b0f14; }
.page-shell { overflow: hidden; position: relative; }
.page-shell::before { content: ""; position: absolute; z-index: 0; top: -480px; left: 45%; width: 950px; height: 900px; border-radius: 50%; background: radial-gradient(circle, rgba(122, 150, 113, .11), transparent 68%); pointer-events: none; }
.wrap { width: min(1200px, calc(100% - 80px)); margin-inline: auto; position: relative; }

.site-header { height: 100px; display: flex; align-items: center; gap: 28px; border-bottom: 1px solid rgba(255,255,255,.08); z-index: 5; }
.brand { display: inline-flex; align-items: center; gap: 13px; flex: 0 0 auto; }
.brand-mark { width: 36px; height: 36px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 3px; transform: rotate(-12deg); }
.brand-mark i { display: block; border: 2px solid var(--accent); border-radius: 2px; }
.brand-mark i:nth-child(2), .brand-mark i:nth-child(3) { background: var(--accent); }
.brand-type { display: flex; flex-direction: column; gap: 1px; letter-spacing: -.03em; }
.brand-type strong { font-size: 14px; font-weight: 800; line-height: 1.1; }
.brand-type small { font-size: 11px; color: var(--muted); font-weight: 600; letter-spacing: .04em; }
.site-nav { display: flex; gap: 24px; margin-left: auto; }
.site-nav a { font-size: 13px; color: #b9c2c0; transition: color .2s; }
.site-nav a:hover, .footer-links a:hover { color: var(--accent); }
.nav-link { margin-left: 8px; display: inline-flex; align-items: center; gap: 15px; border: 1px solid #475150; padding: 12px 16px; border-radius: 5px; font: 500 11px var(--mono); letter-spacing: -.03em; transition: border .2s, background .2s; }
.nav-link:hover { border-color: var(--accent); background: rgba(198,242,123,.06); }
.nav-link span { color: var(--accent); font-size: 16px; line-height: 0; }

.hero { min-height: 705px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(470px, .98fr); align-items: center; gap: 70px; padding-top: 75px; padding-bottom: 90px; }
.hero-copy { position: relative; z-index: 2; padding-bottom: 8px; }
.eyebrow, .section-kicker { font: 500 10px var(--mono); letter-spacing: .2em; color: var(--accent); }
.eyebrow { display: inline-flex; align-items: center; gap: 12px; white-space: nowrap; }
.live-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 13px var(--accent); }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(62px, 6.6vw, 100px); line-height: 1.12; letter-spacing: -.085em; font-weight: 800; margin: 31px 0 30px; }
h1 em { color: var(--accent); font-style: normal; }
.hero-lead { font-size: 17px; line-height: 1.9; color: #b7c1c2; max-width: 555px; letter-spacing: -.015em; }
.hero-actions { display: flex; align-items: center; gap: 24px; margin-top: 39px; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 21px; min-height: 53px; padding: 0 22px; border-radius: 5px; font-size: 13px; font-weight: 700; cursor: pointer; transition: transform .2s, background .2s, border-color .2s; white-space: nowrap; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--accent); border: 1px solid var(--accent); color: #101810; box-shadow: 0 0 34px rgba(198,242,123,.09); }
.button-primary:hover { background: #d8ffa1; }
.button-primary span { font-size: 17px; font-weight: 400; }
.button-quiet { color: var(--ink); padding-inline: 0; }
.button-quiet span { font-size: 17px; color: var(--accent); }
.button-outline { border: 1px solid #a3ba8e; color: var(--ink); }
.button-outline:hover { background: rgba(255,255,255,.08); }
.hero-note { display: flex; align-items: center; gap: 13px; color: #83908f; font-size: 11px; margin: 40px 0 0; letter-spacing: .035em; }
.note-line { width: 22px; height: 1px; background: var(--accent); }

.hero-visual { min-height: 500px; position: relative; border: 1px solid #39453d; border-radius: 12px; background: linear-gradient(145deg, rgba(26,35,33,.85), #10161c 68%); box-shadow: 0 30px 100px rgba(0,0,0,.35), inset 0 1px rgba(255,255,255,.06); padding: 31px; overflow: hidden; }
.visual-glow { position: absolute; inset: -190px auto auto -70px; width: 390px; height: 430px; background: radial-gradient(circle, rgba(198,242,123,.16), transparent 70%); filter: blur(22px); pointer-events: none; }
.visual-grid { position: absolute; inset: 0; opacity: .42; background-image: linear-gradient(rgba(185,211,187,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(185,211,187,.08) 1px, transparent 1px); background-size: 33px 33px; mask-image: linear-gradient(to bottom, black, transparent 92%); }
.visual-content { position: relative; z-index: 1; }
.visual-topline, .output-heading, .visual-footer { display: flex; align-items: center; justify-content: space-between; font: 500 10px var(--mono); letter-spacing: .06em; }
.visual-topline { color: #9eafae; margin-bottom: 31px; }
.visual-online { color: var(--accent); display: inline-flex; align-items: center; gap: 8px; }
.visual-online span { height: 5px; width: 5px; border-radius: 50%; background: var(--accent); }
.visual-input { min-height: 55px; display: flex; align-items: center; gap: 16px; padding: 10px 15px; border: 1px solid #384347; background: rgba(17,25,30,.82); border-radius: 7px; font-size: 12px; color: #e6ebe7; box-shadow: 0 10px 25px rgba(0,0,0,.15); }
.visual-avatar { display: grid; place-items: center; flex: 0 0 auto; width: 30px; height: 30px; background: #27363d; border-radius: 4px; font: 500 9px var(--mono); color: #b8c9ce; }
.visual-connector { height: 45px; display: flex; align-items: center; margin-left: 29px; border-left: 1px dashed #65756b; position: relative; }
.visual-connector span { position: absolute; left: -3px; top: 50%; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.visual-connector-short { height: 34px; margin-left: 29px; }
.visual-source { min-height: 67px; border: 1px solid rgba(198,242,123,.72); background: rgba(172,221,126,.09); border-radius: 7px; display: flex; align-items: center; gap: 16px; padding: 12px 17px; box-shadow: 0 0 35px rgba(198,242,123,.09); }
.source-icon { width: 31px; height: 31px; display: grid; place-items: center; border: 1px solid rgba(198,242,123,.55); border-radius: 5px; color: var(--accent); font-size: 24px; line-height: 0; }
.visual-source div { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.visual-source small { font: 500 9px var(--mono); color: var(--accent); letter-spacing: .08em; }
.visual-source strong { font: 500 13px var(--mono); color: #f1ffe1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.source-arrow { margin-left: auto; font-size: 18px; color: var(--accent); }
.visual-output { background: #131c22; border: 1px solid #3c474c; padding: 17px; border-radius: 7px; }
.output-heading { color: #a5b1b3; margin-bottom: 10px; }
.output-check { color: var(--accent); font-size: 9px; }
.file-row { display: flex; align-items: center; gap: 12px; min-height: 35px; border-top: 1px solid #27343a; font: 400 11px var(--mono); color: #d5dfdb; }
.file-row:first-of-type { border-top: 0; }
.file-icon { color: var(--accent); font-size: 17px; width: 18px; text-align: center; }
.file-row small { margin-left: auto; color: #819095; font: 400 10px var(--sans); }
.visual-footer { border-top: 1px solid rgba(255,255,255,.1); padding: 17px 2px 0; margin-top: 20px; color: #718187; font-size: 9px; }
.visual-footer span:nth-child(3) { color: var(--accent); }

.marquee { border-block: 1px solid #29343c; background: #11181d; }
.marquee-inner { max-width: 1200px; margin: auto; min-height: 72px; display: flex; justify-content: space-between; align-items: center; gap: 20px; color: #d4ddda; white-space: nowrap; font-size: 12px; font-weight: 600; letter-spacing: .07em; }
.marquee b { font-size: 11px; color: var(--accent); font-weight: 400; }

.section { padding-top: 126px; padding-bottom: 126px; scroll-margin-top: 30px; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 60px; margin-bottom: 55px; }
.section-kicker { margin: 0 0 19px; }
.section-heading h2, .scope-panel h2, .final-cta h2 { font-size: clamp(37px, 4vw, 57px); line-height: 1.25; letter-spacing: -.065em; margin: 0; font-weight: 800; }
.section-heading > p { max-width: 320px; margin: 0 0 4px; color: var(--muted); line-height: 1.85; font-size: 14px; }
.handoff-card { border: 1px solid #495b45; border-radius: 11px; background: linear-gradient(140deg, #1b2928, #131b20 68%); box-shadow: inset 0 1px rgba(255,255,255,.06); overflow: hidden; }
.handoff-header { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 20px 28px; border-bottom: 1px solid #394b48; font: 500 11px var(--mono); color: #dfe8df; }
.handoff-header > span:first-child { display: flex; align-items: center; gap: 12px; }
.spark { font-size: 18px; color: var(--accent); line-height: .7; }
.handoff-tag { color: #91a6a0; font-size: 9px; letter-spacing: .11em; }
.handoff-card > p { padding: 31px 28px 26px; max-width: 900px; font-size: 19px; line-height: 2; color: #e7ede7; margin: 0; }
.handoff-card strong { color: var(--accent); font-weight: 600; word-break: break-all; }
.handoff-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 28px; background: rgba(0,0,0,.12); border-top: 1px solid #30403d; color: #889b99; font-size: 11px; }
.copy-link { background: none; border: 0; color: var(--accent); cursor: pointer; font-weight: 700; padding: 4px 0; white-space: nowrap; }
.copy-link span { margin-left: 10px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 35px; margin-top: 55px; }
.step { border-top: 1px solid #3d4d48; padding-top: 20px; }
.step-number { color: var(--accent); font: 500 12px var(--mono); display: flex; align-items: center; justify-content: space-between; }
.step-number i { display: block; width: 6px; height: 6px; border: 1px solid var(--accent); transform: rotate(45deg); }
.step h3 { margin: 38px 0 12px; font-size: 21px; letter-spacing: -.04em; }
.step p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; max-width: 315px; }

.section-inside { background: #10171d; border-block: 1px solid #1f2b32; }
.system-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.system-card { min-height: 320px; padding: 28px; border: 1px solid #30404a; border-radius: 7px; background: #152028; display: flex; flex-direction: column; transition: border-color .2s, transform .2s; }
.system-card:hover { border-color: #718c70; transform: translateY(-3px); }
.system-card-featured { background: linear-gradient(145deg, #253c33, #172721 72%); border-color: #577759; }
.card-top { display: flex; align-items: center; justify-content: space-between; color: #8ea3a3; font: 500 10px var(--mono); letter-spacing: .1em; }
.card-glyph { color: var(--accent); font: 400 27px var(--sans); line-height: .7; }
.system-card h3 { font-size: 25px; letter-spacing: -.055em; margin: 45px 0 10px; }
.system-card p { margin: 0; max-width: 425px; color: #abb9b6; font-size: 13px; line-height: 1.85; }
.card-code, .card-foot { margin-top: auto; padding-top: 26px; color: var(--accent); font: 400 11px var(--mono); }
.card-foot { color: #91aeaa; }
.system-note { display: flex; align-items: center; gap: 20px; margin-top: 24px; padding: 19px 22px; border: 1px solid #354443; border-radius: 6px; background: #131e21; }
.system-note > span { flex: 0 0 auto; color: var(--accent); font: 500 10px var(--mono); letter-spacing: .08em; }
.system-note p { color: #9dafad; line-height: 1.7; font-size: 11px; margin: 0; }
.system-note code { color: #d7e5c7; font: 11px var(--mono); }
.system-note a { flex: 0 0 auto; color: var(--accent); font-size: 11px; font-weight: 700; }

.flow-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 12px; }
.flow-tab { display: flex; align-items: center; gap: 17px; min-height: 64px; padding: 0 21px; color: #a9b9b6; text-align: left; background: #151e23; border: 1px solid #334148; border-radius: 6px; cursor: pointer; font-size: 15px; font-weight: 700; transition: background .2s, border-color .2s, color .2s; }
.flow-tab:hover { border-color: #6d8a67; }
.flow-tab.is-active { border-color: #9cc66d; color: #ecf4e7; background: #263729; }
.flow-tab > span { font: 500 11px var(--mono); color: var(--accent); }
.flow-tab small { font: 400 9px var(--mono); color: #91a49a; letter-spacing: .08em; margin-left: auto; }
.flow-panel { padding: 31px; border: 1px solid #42564b; border-radius: 7px; background: radial-gradient(circle at 2% 0%, rgba(156,199,118,.1), transparent 45%), #17211e; }
.flow-panel[hidden] { display: none; }
.flow-panel-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 31px; }
.flow-panel-heading h3 { font-size: 23px; letter-spacing: -.04em; margin: 0; }
.flow-panel-heading p { max-width: 525px; font-size: 12px; line-height: 1.7; color: #a5b7aa; margin: 0; }
.flow-stages { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(128px, 1fr); gap: 8px; overflow-x: auto; list-style: none; margin: 0; padding: 0 0 5px; scrollbar-color: #5a7959 transparent; }
.flow-stages li { position: relative; display: flex; flex-direction: column; justify-content: space-between; min-height: 103px; padding: 15px; background: #222d27; border: 1px solid #3a4d3d; border-radius: 5px; }
.flow-stages li:not(:last-child)::after { content: "→"; position: absolute; right: -8px; top: 40px; z-index: 2; color: var(--accent); font-size: 13px; }
.flow-stages span { font: 500 10px var(--mono); color: #9ac579; }
.flow-stages strong { font-size: 12px; font-weight: 700; white-space: nowrap; }
.flow-source { margin: 20px 0 0; font-size: 11px; line-height: 1.7; color: #8b9b98; }
.flow-source a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

.section-artifacts { background: #10171d; border-block: 1px solid #27363c; }
.artifact-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.artifact-card { min-width: 0; min-height: 258px; display: flex; flex-direction: column; padding: 23px; border: 1px solid #34454b; border-radius: 7px; background: #172128; }
.artifact-card > span { color: var(--accent); font: 500 10px var(--mono); letter-spacing: .08em; }
.artifact-card h3 { margin: 36px 0 10px; font-size: 20px; letter-spacing: -.04em; }
.artifact-card p { color: #aabbb8; font-size: 12px; line-height: 1.75; margin-bottom: 22px; }
.artifact-card code { display: block; margin-top: auto; overflow-wrap: anywhere; color: #c9dfb5; font: 400 10px/1.7 var(--mono); }
.artifact-trace { display: flex; align-items: center; gap: 35px; margin-top: 18px; padding: 22px 24px; border: 1px solid #4e644e; border-radius: 6px; background: #1b2c27; }
.artifact-trace strong { flex: 0 0 auto; color: var(--accent); font-size: 12px; }
.artifact-trace span { color: #d2ddd2; font-size: 12px; line-height: 1.7; }
.artifact-trace b { padding-inline: 9px; color: var(--accent); font-weight: 400; }
.artifact-note { margin: 21px 0 0; color: #91a3a1; font-size: 11px; line-height: 1.85; }
.artifact-note code { color: #d5e8c4; font: 400 11px var(--mono); }
.artifact-note a { color: var(--accent); white-space: nowrap; }

.section-evolution { background: #111a1a; border-block: 1px solid #263b34; }
.evolution-track { display: grid; grid-template-columns: repeat(4, 1fr); gap: 11px; }
.evolution-track article { position: relative; min-height: 188px; padding: 23px; border: 1px solid #42564b; background: #1a2824; border-radius: 7px; }
.evolution-track article:not(:last-child)::after { content: "↗"; position: absolute; z-index: 2; right: -10px; top: 47%; color: var(--accent); font-size: 17px; }
.evolution-index { color: var(--accent); font: 500 10px var(--mono); letter-spacing: .08em; }
.evolution-track h3 { margin: 32px 0 9px; font-size: 19px; letter-spacing: -.04em; }
.evolution-track p { margin: 0; color: #a9b9af; font-size: 12px; line-height: 1.7; }
.evolution-status { display: grid; grid-template-columns: 175px minmax(0, 1fr) auto; align-items: center; gap: 35px; padding: 25px 0; margin-top: 25px; border-top: 1px solid #3a4c42; }
.status-label { display: inline-flex; gap: 9px; align-items: center; color: var(--accent); font: 500 10px var(--mono); white-space: nowrap; }
.status-label i { height: 6px; width: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.evolution-status h3 { margin: 0 0 7px; font-size: 15px; }
.evolution-status p { margin: 0; color: #9dafaa; line-height: 1.75; font-size: 11px; }
.evolution-status a { color: var(--accent); font-size: 11px; font-weight: 700; white-space: nowrap; }

.principle-list { border-top: 1px solid #3a4548; }
.principle-list article { display: grid; grid-template-columns: 90px 1fr 30px; gap: 25px; align-items: center; border-bottom: 1px solid #3a4548; padding: 33px 0; }
.principle-index { font: 500 13px var(--mono); color: var(--accent); }
.principle-list h3 { margin: 0 0 9px; font-size: 20px; letter-spacing: -.04em; }
.principle-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }
.principle-symbol { color: #698476; font-size: 25px; }
.scope-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; padding: 55px; border: 1px solid #435744; border-radius: 10px; background: radial-gradient(circle at 90% 20%, rgba(145,196,116,.12), transparent 45%), #18251f; }
.scope-copy { align-self: end; }
.scope-copy p { color: #becbc3; font-size: 14px; line-height: 2; margin-bottom: 25px; }
.scope-copy code { color: var(--accent); font: 12px var(--mono); }
.scope-copy a { color: var(--accent); font-size: 12px; font-weight: 700; }
.scope-copy a span { margin-left: 12px; }
.final-cta { min-height: 475px; margin-top: 35px; margin-bottom: 115px; padding: 85px 40px; text-align: center; border: 1px solid #3c5141; border-radius: 11px; background: radial-gradient(circle at 50% 0%, rgba(145,198,107,.19), transparent 55%), #121c1b; }
.cta-star { font-size: 32px; color: var(--accent); margin-bottom: 25px; }
.final-cta h2 { margin: 0 0 16px; }
.final-cta > p:not(.section-kicker) { color: #aabbb1; font-size: 14px; margin-bottom: 35px; }
.cta-actions { display: flex; justify-content: center; gap: 14px; }
.site-footer { min-height: 155px; border-top: 1px solid #2d393d; display: flex; align-items: center; gap: 70px; }
.footer-brand { display: flex; align-items: center; gap: 15px; font-size: 13px; font-weight: 800; line-height: 1.25; white-space: nowrap; }
.footer-brand small { color: #849594; font-size: 11px; font-weight: 500; }
.footer-brand small a { color: #bccfc5; }
.footer-mark { color: var(--accent); font-size: 32px; }
.footer-links { display: flex; align-items: center; gap: 26px; margin-left: auto; white-space: nowrap; }
.footer-links a { color: #a1aeae; font-size: 11px; transition: color .2s; }
.footer-note { color: #627471; font: 400 10px var(--mono); white-space: nowrap; }
.toast { position: fixed; z-index: 20; bottom: 28px; left: 50%; transform: translate(-50%, 18px); opacity: 0; pointer-events: none; background: var(--accent); color: #142015; padding: 12px 18px; border-radius: 5px; font-size: 12px; font-weight: 700; box-shadow: 0 10px 30px rgba(0,0,0,.3); transition: opacity .2s, transform .2s; }
.toast.visible { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 1050px) {
  .site-nav { display: none; }
  .nav-link { margin-left: auto; }
  .hero { grid-template-columns: 1fr; gap: 55px; padding-top: 90px; }
  .hero-copy { max-width: 700px; }
  .hero-visual { max-width: 630px; width: 100%; margin-left: auto; margin-right: auto; }
  .system-grid { grid-template-columns: 1fr 1fr; }
  .system-card:last-child { grid-column: 1 / -1; min-height: 260px; }
  .system-note { flex-wrap: wrap; }
  .artifact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .artifact-card { min-height: 220px; }
  .artifact-card h3 { margin-top: 25px; }
  .evolution-status { grid-template-columns: 1fr; gap: 14px; }
  .footer-note { display: none; }
}
@media (max-width: 700px) {
  .wrap { width: min(100% - 40px, 1200px); }
  .site-header { height: 76px; }
  .brand-type strong { font-size: 12px; }
  .brand-mark { width: 29px; height: 29px; }
  .nav-link { padding: 10px; font-size: 0; gap: 0; }
  .nav-link span { font-size: 16px; }
  .hero { min-height: 0; padding-top: 78px; padding-bottom: 80px; gap: 45px; }
  .eyebrow { font-size: 8px; letter-spacing: .13em; }
  h1 { font-size: clamp(56px, 13vw, 78px); margin: 27px 0 23px; }
  .hero-lead { font-size: 14px; line-height: 1.9; }
  .hero-actions { gap: 14px; flex-wrap: wrap; margin-top: 28px; }
  .button { min-height: 49px; font-size: 12px; }
  .hero-note { margin-top: 30px; font-size: 10px; }
  .hero-visual { min-height: 0; padding: 20px; }
  .visual-topline { font-size: 8px; margin-bottom: 22px; }
  .visual-input { font-size: 11px; }
  .visual-source strong { font-size: 10px; }
  .file-row { font-size: 9px; }
  .file-row small { font-size: 8px; }
  .marquee-inner { overflow-x: auto; justify-content: flex-start; padding-inline: 20px; gap: 20px; scrollbar-width: none; }
  .marquee-inner::-webkit-scrollbar { display: none; }
  .section { padding-top: 85px; padding-bottom: 85px; }
  .section-heading { display: block; margin-bottom: 37px; }
  .section-heading h2, .scope-panel h2, .final-cta h2 { font-size: 36px; }
  .section-heading > p { margin-top: 18px; font-size: 13px; }
  .handoff-header { padding: 17px 18px; }
  .handoff-tag { display: none; }
  .handoff-card > p { padding: 23px 18px; font-size: 15px; line-height: 1.9; }
  .handoff-bottom { padding: 16px 18px; align-items: start; }
  .handoff-bottom > span { font-size: 10px; line-height: 1.5; }
  .steps { grid-template-columns: 1fr; gap: 28px; margin-top: 43px; }
  .step { padding-top: 15px; }
  .step h3 { margin: 16px 0 8px; font-size: 19px; }
  .system-grid { grid-template-columns: 1fr; }
  .system-card { min-height: 245px; padding: 24px; }
  .system-card:last-child { grid-column: auto; min-height: 245px; }
  .system-card h3 { margin-top: 33px; font-size: 23px; }
  .system-note { display: block; padding: 19px; }
  .system-note p { margin: 10px 0; }
  .flow-tabs { display: flex; overflow-x: auto; scrollbar-width: none; }
  .flow-tabs::-webkit-scrollbar { display: none; }
  .flow-tab { flex: 0 0 auto; min-height: 54px; padding: 0 16px; font-size: 13px; gap: 10px; }
  .flow-tab small { display: none; }
  .flow-panel { padding: 20px; }
  .flow-panel-heading { display: block; margin-bottom: 20px; }
  .flow-panel-heading h3 { font-size: 20px; margin-bottom: 9px; }
  .flow-stages { grid-auto-columns: 125px; }
  .flow-stages li { min-height: 95px; }
  .artifact-grid { grid-template-columns: 1fr; }
  .artifact-card { min-height: 185px; }
  .artifact-card h3 { margin-top: 22px; }
  .artifact-trace { display: block; padding: 19px; }
  .artifact-trace span { display: block; margin-top: 10px; }
  .artifact-trace b { padding-inline: 4px; }
  .evolution-track { grid-template-columns: 1fr 1fr; }
  .evolution-track article { min-height: 150px; padding: 17px; }
  .evolution-track article:nth-child(2)::after { display: none; }
  .evolution-track h3 { margin-top: 21px; font-size: 16px; }
  .evolution-track p { font-size: 11px; }
  .principle-list article { grid-template-columns: 25px 1fr; gap: 16px; align-items: start; padding: 26px 0; }
  .principle-symbol { display: none; }
  .principle-list h3 { font-size: 18px; }
  .scope-panel { grid-template-columns: 1fr; gap: 25px; padding: 29px; }
  .scope-copy p { font-size: 13px; }
  .final-cta { padding: 75px 18px; min-height: 0; margin: 15px auto 90px; }
  .cta-actions { flex-wrap: wrap; }
  .site-footer { padding-top: 30px; padding-bottom: 35px; min-height: 0; display: block; }
  .footer-links { margin-top: 32px; gap: 20px; flex-wrap: wrap; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}