:root {
  --color-page: #fff;
  --color-surface: #fff;
  --color-warm: #f6f5f4;
  --color-text: rgba(0, 0, 0, 0.95);
  --color-muted: #615d59;
  --color-subtle: #a39e98;
  --color-border: rgba(0, 0, 0, 0.1);
  --color-blue: #0075de;
  --color-blue-dark: #005bab;
  --color-blue-tint: #f2f9ff;
  --color-focus: #097fe8;
  --shadow-card: rgba(0, 0, 0, 0.04) 0 4px 18px,
    rgba(0, 0, 0, 0.027) 0 2.025px 7.85px,
    rgba(0, 0, 0, 0.02) 0 0.8px 2.93px,
    rgba(0, 0, 0, 0.01) 0 0.175px 1.04px;
  --shadow-deep: rgba(0, 0, 0, 0.01) 0 1px 3px,
    rgba(0, 0, 0, 0.02) 0 3px 7px,
    rgba(0, 0, 0, 0.02) 0 7px 15px,
    rgba(0, 0, 0, 0.04) 0 14px 28px,
    rgba(0, 0, 0, 0.05) 0 23px 52px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-page);
  color: var(--color-text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, summary { font: inherit; }
a:focus-visible, summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 4px;
}
::selection { background: #d6eaff; }
.container { width: min(1200px, calc(100% - 48px)); margin-inline: auto; }
.skip-link {
  position: absolute;
  z-index: 50;
  top: -100px;
  left: 16px;
  padding: 8px 16px;
  border-radius: 4px;
  background: var(--color-blue);
  color: #fff;
}
.skip-link:focus { top: 12px; }

.site-header { position: relative; z-index: 10; background: #fff; }
.header-inner { display: flex; align-items: center; gap: 32px; min-height: 80px; }
.brand { display: inline-flex; align-items: center; gap: 10px; white-space: nowrap; font-size: 18px; font-weight: 700; letter-spacing: -0.4px; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 8px; background: var(--color-blue); color: #fff; }
.brand-mark svg { width: 28px; height: 28px; }
.desktop-nav { display: flex; align-items: center; gap: 32px; margin-left: auto; }
.desktop-nav a, .site-footer a { font-size: 15px; font-weight: 600; transition: color 160ms ease; }
.desktop-nav a:hover, .site-footer a:hover { color: var(--color-blue); }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 46px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: var(--color-blue);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.33;
  white-space: nowrap;
  transition: background 160ms ease, transform 160ms ease;
}
.button:hover { background: var(--color-blue-dark); transform: translateY(-1px); }
.button:active { transform: scale(0.98); }
.button-small { min-height: 40px; padding: 8px 15px; }
.mobile-nav { display: none; }

.hero { background: #fff; }
.hero-layout { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); align-items: center; gap: 44px; min-height: 640px; }
.hero-copy { padding: 76px 0 82px; }
.eyebrow, .section-kicker, .signal-caption, .incident-meta, .analysis-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.13em;
  line-height: 1.4;
}
.eyebrow { display: inline-flex; align-items: center; gap: 9px; margin-bottom: 26px; color: var(--color-blue-dark); letter-spacing: 0.075em; text-transform: uppercase; }
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--color-blue); box-shadow: 0 0 0 4px var(--color-blue-tint); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 640px; margin-bottom: 25px; font-size: clamp(50px, 5.35vw, 76px); font-weight: 700; line-height: 0.99; letter-spacing: -0.045em; }
h1 span { color: var(--color-blue); }
.hero-intro { max-width: 490px; margin-bottom: 29px; color: var(--color-muted); font-size: 19px; line-height: 1.52; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 26px; }
.text-link { color: var(--color-text); font-size: 15px; font-weight: 600; }
.text-link:hover { color: var(--color-blue); text-decoration: underline; text-underline-offset: 4px; }
.text-link span { margin-left: 5px; }
.hero-footnote { display: flex; align-items: center; gap: 10px; margin-top: 58px; color: var(--color-subtle); font-size: 12px; font-weight: 500; letter-spacing: 0.025em; }
.footnote-line { width: 24px; height: 1px; background: #c8c3bd; }
.hero-visual { min-width: 0; margin: 0; padding: 20px; border: 1px solid var(--color-border); border-radius: 16px; background: var(--color-warm); box-shadow: var(--shadow-card); }
.workflow-panel { padding: 20px; border: 1px solid var(--color-border); border-radius: 12px; background: #fff; box-shadow: var(--shadow-card); }
.workflow-topline, .workflow-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.workflow-topline { margin-bottom: 17px; }
.workflow-title { font-size: 13px; font-weight: 700; }
.workflow-preview { padding: 4px 7px; border-radius: 9999px; background: var(--color-warm); color: var(--color-muted); font-size: 10px; font-weight: 700; letter-spacing: .1em; }
.workflow-alert, .workflow-evidence, .workflow-result { border: 1px solid var(--color-border); border-radius: 10px; }
.workflow-alert { padding: 18px; }
.workflow-label { display: block; color: var(--color-blue-dark); font-size: 10px; font-weight: 700; letter-spacing: .12em; line-height: 1.4; }
.workflow-source { color: var(--color-muted); font-size: 11px; font-weight: 600; }
.workflow-alert strong { display: block; margin-top: 12px; font-size: 20px; line-height: 1.2; letter-spacing: -.25px; }
.workflow-detail { display: block; margin-top: 5px; color: var(--color-muted); font-size: 12px; }
.workflow-connector { position: relative; height: 25px; margin-left: 26px; border-left: 1px dashed #c8c3bd; }
.workflow-connector span { position: absolute; bottom: -3px; left: -3px; width: 5px; height: 5px; border-radius: 50%; background: var(--color-blue); }
.workflow-context { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.workflow-evidence { min-width: 0; min-height: 116px; padding: 14px; background: #fcfcfb; }
.workflow-evidence strong, .workflow-evidence > span:last-child { display: block; }
.workflow-evidence strong { margin-top: 9px; font-size: 13px; line-height: 1.3; }
.workflow-evidence > span:last-child { margin-top: 5px; color: var(--color-muted); font-size: 11px; line-height: 1.4; }
.workflow-result { display: flex; align-items: start; gap: 11px; padding: 15px; border-color: rgba(0, 117, 222, .16); background: var(--color-blue-tint); }
.workflow-result-icon { display: grid; place-items: center; flex: 0 0 24px; width: 24px; height: 24px; border-radius: 50%; background: var(--color-blue); color: #fff; font-size: 12px; }
.workflow-result strong { display: block; margin-top: 6px; font-size: 13px; line-height: 1.35; }
.hero-visual figcaption { margin-top: 11px; color: var(--color-muted); font-size: 11px; text-align: center; }

.signal-strip { border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); background: var(--color-warm); }
.signal-inner { display: flex; align-items: center; gap: 40px; min-height: 92px; }
.signal-caption { flex: 0 0 auto; color: var(--color-muted); }
.signal-inner ul { display: flex; justify-content: space-between; align-items: center; flex: 1; gap: 22px; margin: 0; padding: 0; list-style: none; }
.signal-inner li { color: #494744; font-size: 15px; font-weight: 600; white-space: nowrap; }

.section { padding: 112px 0; }
.section-heading { margin-bottom: 48px; }
.section-kicker { margin-bottom: 18px; color: var(--color-blue-dark); text-transform: uppercase; }
h2 { margin-bottom: 0; font-size: clamp(38px, 4.1vw, 54px); font-weight: 700; line-height: 1.05; letter-spacing: -0.038em; }
h2 em { font-style: normal; color: var(--color-blue); }
.section-heading p:not(.section-kicker) { max-width: 410px; margin: 0; color: var(--color-muted); font-size: 18px; line-height: 1.58; }
.split-heading { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); align-items: end; gap: 64px; }
.problem-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.problem-card, .engineering-card { position: relative; min-height: 270px; padding: 28px; border: 1px solid var(--color-border); border-radius: 12px; background: #fff; box-shadow: var(--shadow-card); }
.card-index { position: absolute; top: 27px; right: 28px; color: var(--color-subtle); font-size: 12px; font-weight: 600; }
.problem-icon { display: grid; place-items: center; width: 46px; height: 46px; margin-bottom: 36px; border-radius: 10px; background: var(--color-blue-tint); color: var(--color-blue); font-size: 28px; font-weight: 500; }
.problem-card h3, .engineering-card h3 { margin-bottom: 8px; font-size: 22px; line-height: 1.27; letter-spacing: -.25px; }
.problem-card p, .engineering-card p { max-width: 320px; margin-bottom: 0; color: var(--color-muted); line-height: 1.55; }

.flow-section { background: var(--color-warm); }
.centered-heading { display: grid; justify-items: center; text-align: center; }
.centered-heading h2 { max-width: 760px; }
.centered-heading p:not(.section-kicker) { max-width: 580px; margin-top: 20px; }
.flow-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 0; padding: 0; list-style: none; }
.flow-card { position: relative; display: flex; flex-direction: column; min-height: 315px; padding: 24px; border: 1px solid var(--color-border); border-radius: 12px; background: #fff; box-shadow: var(--shadow-card); }
.flow-card:not(:last-child)::after { position: absolute; z-index: 2; top: 76px; right: -20px; display: grid; place-items: center; width: 28px; height: 28px; border: 1px solid var(--color-border); border-radius: 50%; background: #fff; color: var(--color-blue); font-size: 18px; content: "→"; }
.flow-number { color: var(--color-subtle); font-size: 12px; font-weight: 700; letter-spacing: .13em; }
.flow-symbol { display: grid; place-items: center; width: 46px; height: 46px; margin: 22px 0 24px; border-radius: 10px; background: var(--color-blue-tint); color: var(--color-blue); font-size: 24px; font-weight: 600; }
.flow-card h3 { margin-bottom: 8px; font-size: 20px; line-height: 1.25; letter-spacing: -.25px; }
.flow-card p { margin-bottom: 20px; color: var(--color-muted); font-size: 14px; line-height: 1.5; }
.flow-tag { margin-top: auto; color: var(--color-blue-dark); font-size: 12px; font-weight: 600; }
.flow-note { margin: 20px 0 0; color: var(--color-muted); font-size: 13px; text-align: center; }

.showcase-section { overflow: hidden; }
.showcase-layout { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); align-items: center; gap: 66px; }
.showcase-copy h2 { max-width: 400px; margin-bottom: 22px; }
.showcase-copy > p:not(.section-kicker):not(.illustration-note) { max-width: 430px; margin-bottom: 24px; color: var(--color-muted); font-size: 18px; line-height: 1.57; }
.check-list { display: grid; gap: 11px; margin: 0; padding: 0; list-style: none; }
.check-list li { display: flex; align-items: start; gap: 11px; font-size: 15px; font-weight: 600; }
.check-list span { display: grid; place-items: center; flex: 0 0 auto; width: 20px; height: 20px; border-radius: 50%; background: #e8f7f5; color: #18867f; font-size: 12px; }
.illustration-note { margin: 30px 0 0; color: var(--color-subtle); font-size: 12px; }
.product-window { overflow: hidden; border: 1px solid var(--color-border); border-radius: 16px; background: #fff; box-shadow: var(--shadow-deep); }
.window-topbar { display: flex; align-items: center; gap: 28px; min-height: 58px; padding: 0 22px; border-bottom: 1px solid var(--color-border); }
.window-brand { display: flex; align-items: center; gap: 7px; white-space: nowrap; font-size: 13px; font-weight: 700; }
.mini-brand-icon { display: grid; place-items: center; width: 21px; height: 21px; border-radius: 5px; background: var(--color-blue); color: #fff; font-size: 16px; }
.window-tabs { display: flex; align-self: stretch; align-items: stretch; gap: 22px; margin-left: auto; }
.window-tabs span { display: flex; align-items: center; border-bottom: 2px solid transparent; color: var(--color-subtle); font-size: 12px; font-weight: 600; }
.window-tabs .active-tab { border-bottom-color: var(--color-blue); color: var(--color-text); }
.window-avatar { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--color-warm); color: var(--color-muted); font-size: 9px; font-weight: 700; }
.window-body { padding: 26px 28px 30px; background: linear-gradient(#fff, #fcfcfb); }
.window-breadcrumb { margin-bottom: 20px; color: var(--color-muted); font-size: 11px; font-weight: 600; }
.window-breadcrumb span { padding: 0 5px; color: var(--color-subtle); }
.incident-heading { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.incident-meta { color: var(--color-subtle); font-size: 10px; }
.incident-heading h3 { margin: 4px 0 0; font-size: 23px; line-height: 1.2; letter-spacing: -.5px; }
.status-pill { display: inline-flex; align-items: center; gap: 6px; padding: 5px 9px; border-radius: 9999px; background: #fff5ef; color: #ad480b; font-size: 11px; font-weight: 600; white-space: nowrap; }
.status-pill span { width: 6px; height: 6px; border-radius: 50%; background: #dd5b00; }
.incident-details { display: flex; flex-wrap: wrap; gap: 6px; margin: 18px 0 20px; }
.incident-details span { padding: 5px 8px; border: 1px solid var(--color-border); border-radius: 9999px; color: var(--color-muted); font-size: 10px; font-weight: 600; }
.analysis-panel { overflow: hidden; border: 1px solid var(--color-border); border-radius: 10px; background: #fff; }
.analysis-section { padding: 18px 20px; border-bottom: 1px solid var(--color-border); }
.analysis-section:last-child { border-bottom: 0; }
.analysis-label { display: block; margin-bottom: 8px; color: var(--color-blue-dark); font-size: 10px; letter-spacing: .1em; }
.analysis-section p { margin: 0; color: #44413e; font-size: 12px; line-height: 1.55; }
.evidence-row { display: flex; align-items: baseline; gap: 8px; margin: 5px 0; color: #44413e; font-size: 11px; line-height: 1.4; }
.evidence-dot { flex: 0 0 5px; width: 5px; height: 5px; border-radius: 50%; background: var(--color-blue); }
.mitigation-section p + p { margin-top: 3px; }
.mitigation-section strong { color: var(--color-blue-dark); }

.engineering-section { background: var(--color-warm); }
.engineering-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.engineering-card { min-height: 270px; }
.engineering-glyph { display: block; height: 58px; color: var(--color-blue); font-size: 36px; line-height: 1; }

.closing-section { padding: 82px 0; background: #fff; }
.closing-inner { display: flex; justify-content: space-between; align-items: center; gap: 40px; }
.closing-inner h2 { max-width: 710px; font-size: clamp(36px, 4vw, 50px); }
.closing-inner p:not(.section-kicker) { max-width: 580px; margin: 18px 0 0; color: var(--color-muted); font-size: 17px; }
.site-footer { border-top: 1px solid var(--color-border); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 76px; color: var(--color-muted); font-size: 13px; }

@media (max-width: 1080px) {
  .hero-layout { gap: 24px; }
  .hero-visual { padding: 14px; }
  .workflow-panel { padding: 14px; }
  .signal-inner { align-items: start; flex-direction: column; justify-content: center; gap: 13px; padding-block: 20px; }
  .signal-inner ul { justify-content: flex-start; flex-wrap: wrap; gap: 10px 24px; }
  .split-heading { gap: 36px; }
  .showcase-layout { gap: 36px; }
  .flow-card { padding: 19px; }
}

@media (max-width: 800px) {
  .desktop-nav, .header-cta { display: none; }
  .header-inner { justify-content: space-between; min-height: 68px; }
  .mobile-nav { position: relative; display: block; }
  .mobile-nav summary { display: flex; flex-direction: column; justify-content: center; gap: 4px; width: 40px; height: 40px; padding: 10px; border: 1px solid var(--color-border); border-radius: 4px; cursor: pointer; list-style: none; }
  .mobile-nav summary::-webkit-details-marker { display: none; }
  .mobile-nav summary span { display: block; width: 18px; height: 2px; border-radius: 2px; background: var(--color-text); }
  .mobile-nav nav { position: absolute; top: 47px; right: 0; display: grid; gap: 1px; width: 210px; padding: 8px; border: 1px solid var(--color-border); border-radius: 8px; background: #fff; box-shadow: var(--shadow-deep); }
  .mobile-nav nav a { padding: 9px 10px; border-radius: 4px; font-size: 14px; font-weight: 600; }
  .mobile-nav nav a:hover { background: var(--color-warm); }
  .hero-layout { grid-template-columns: 1fr; gap: 0; }
  .hero-copy { max-width: 650px; padding: 66px 0 34px; }
  .hero-visual { width: min(100%, 680px); margin: 0 0 70px; }
  .section { padding-block: 80px; }
  .split-heading { grid-template-columns: 1fr; }
  .split-heading p:not(.section-kicker) { max-width: 650px; }
  .problem-grid, .engineering-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow-card:nth-child(2)::after { display: none; }
  .showcase-layout { grid-template-columns: 1fr; }
  .showcase-copy h2, .showcase-copy > p:not(.section-kicker):not(.illustration-note) { max-width: 650px; }
  .product-window { max-width: 720px; }
}

@media (max-width: 600px) {
  .container { width: min(100% - 32px, 1200px); }
  .brand { font-size: 17px; }
  .hero-layout { min-height: auto; }
  .hero-copy { padding: 66px 0 28px; }
  .eyebrow { margin-bottom: 22px; font-size: 10px; }
  h1 { font-size: clamp(43px, 12vw, 58px); letter-spacing: -.045em; }
  .hero-intro { font-size: 17px; }
  .hero-actions { gap: 18px; }
  .hero-footnote { margin-top: 34px; }
  .hero-visual { margin-bottom: 56px; padding: 12px; }
  .workflow-panel { padding: 12px; }
  .workflow-alert { padding: 15px; }
  .workflow-alert strong { font-size: 17px; }
  .workflow-evidence { padding: 11px; }
  .signal-inner { gap: 12px; }
  .signal-inner ul { gap: 7px 17px; }
  .signal-inner li { font-size: 12px; }
  .section { padding-block: 68px; }
  .section-heading { margin-bottom: 30px; }
  h2 { font-size: clamp(35px, 9vw, 45px); }
  .section-heading p:not(.section-kicker), .showcase-copy > p:not(.section-kicker):not(.illustration-note) { font-size: 16px; }
  .problem-grid, .engineering-grid, .flow-grid { grid-template-columns: 1fr; }
  .problem-card, .engineering-card { min-height: auto; padding: 23px; }
  .problem-icon { margin-bottom: 25px; }
  .flow-card { min-height: 240px; padding: 23px; }
  .flow-card:not(:last-child)::after { top: auto; right: auto; bottom: -20px; left: calc(50% - 14px); content: "↓"; }
  .flow-card:nth-child(2)::after { display: grid; }
  .flow-symbol { margin: 15px 0; }
  .window-topbar { gap: 10px; padding-inline: 14px; }
  .window-tabs { gap: 9px; }
  .window-avatar { display: none; }
  .window-body { padding: 18px 14px; }
  .incident-heading h3 { font-size: 18px; }
  .analysis-section { padding: 14px; }
  .closing-section { padding-block: 66px; }
  .closing-inner { align-items: start; flex-direction: column; gap: 28px; }
  .closing-inner h2 { font-size: 38px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}
