:root {
  --bg: #04080F;
  --bg-raised: #080F1E;
  --bg-soft: #0C1526;
  --border: #162440;
  --border-strong: #24385D;
  --violet: #7B6EF6;
  --blue: #3B9EFF;
  --text: #F8FAFC;
  --muted: #94A3B8;
  --muted-2: #71829C;
  --success: #57D7A0;
  --warning: #FBBF24;
  --danger: #FB7185;
  --display: "Plus Jakarta Sans", Inter, system-ui, sans-serif;
  --body: Inter, system-ui, sans-serif;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shell: 1200px;
  --shadow: 0 24px 80px rgba(0, 0, 0, .28);
}

* { box-sizing: border-box; }
html { max-width: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  max-width: 100%;
  overflow-x: clip;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }
img, svg { display: block; max-width: 100%; }
[hidden] { display: none !important; }

::selection { background: rgba(123,110,246,.35); color: #fff; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  transform: translateY(-150%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 14px;
  border-radius: 8px;
  font-weight: 700;
}
.skip-link:focus { transform: translateY(0); }

.shell { width: min(calc(100% - 40px), var(--shell)); margin: 0 auto; }
.section { padding: 128px 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: #B6C5DD;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .12em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: var(--display); letter-spacing: -.035em; }
h1 { margin: 24px 0; font-size: clamp(3.7rem, 5vw, 4.55rem); line-height: 1.02; }
h2 { margin: 20px 0; font-size: clamp(2.5rem, 4vw, 3rem); line-height: 1.08; }
h3 { margin: 0 0 18px; font-size: clamp(1.55rem, 2.4vw, 2.1rem); line-height: 1.18; }
p { color: var(--muted); }

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 14px;
  line-height: 1;
  transition: transform .25s ease, border-color .25s ease, background-color .25s ease, box-shadow .25s ease;
}
.button:hover { transform: translateY(-2px); }
.button:focus-visible, a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid rgba(59,158,255,.48);
  outline-offset: 3px;
}
.button-primary {
  background: linear-gradient(110deg, var(--violet), var(--blue));
  color: white;
  box-shadow: 0 10px 28px rgba(65, 102, 222, .25);
}
.button-primary:hover { box-shadow: 0 14px 34px rgba(65, 102, 222, .34); }
.button-quiet { background: rgba(255,255,255,.025); border-color: var(--border); color: #DCE7F8; }
.button-quiet:hover { background: rgba(255,255,255,.05); border-color: var(--border-strong); }
.button-large { min-height: 50px; padding: 0 22px; font-size: 15px; }
.text-link { color: #DCE7F8; font-size: 14px; font-weight: 600; }
.text-link:hover { color: white; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: rgba(4,8,15,0);
  transition: background-color .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}
.site-header.scrolled {
  background: rgba(4,8,15,.92);
  border-color: rgba(22,36,64,.92);
  backdrop-filter: blur(18px);
}
.header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-family: var(--display); font-size: 17px; font-weight: 600; white-space: nowrap; }
.brand strong { color: #C7D6ED; }
.brand-mark { width: 36px; height: 36px; }
.desktop-nav { display: flex; align-items: center; gap: 26px; }
.desktop-nav a { color: #A9B8CE; font-size: 13px; font-weight: 600; }
.desktop-nav a:hover { color: white; }
.header-actions { display: flex; align-items: center; gap: 18px; }
.menu-button { display: none; width: 46px; height: 46px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg-raised); }
.menu-button span { display: block; height: 1px; margin: 5px 0; background: #D8E4F5; transition: transform .25s ease, opacity .25s ease; }
.menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.mobile-nav { border-top: 1px solid var(--border); background: rgba(4,8,15,.98); }
.mobile-nav-inner { padding: 24px 0 30px; display: grid; gap: 4px; }
.mobile-nav a:not(.button) { min-height: 48px; display: flex; align-items: center; color: #C7D6ED; font-weight: 600; }
.mobile-nav .button { margin-top: 14px; }

.hero { position: relative; min-height: 860px; overflow: hidden; padding: 168px 0 118px; border-bottom: 1px solid rgba(22,36,64,.65); }
.hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: -12%;
  width: 58%;
  height: 68%;
  background: radial-gradient(circle at 45% 42%, rgba(59,158,255,.13), transparent 57%);
  pointer-events: none;
}
.hero-grid-floor {
  position: absolute;
  left: 44%;
  right: -10%;
  bottom: -17%;
  height: 55%;
  background-image: linear-gradient(rgba(59,158,255,.13) 1px, transparent 1px), linear-gradient(90deg, rgba(59,158,255,.13) 1px, transparent 1px);
  background-size: 64px 64px;
  transform: perspective(620px) rotateX(62deg) scale(1.2);
  transform-origin: center bottom;
  mask-image: linear-gradient(to bottom, transparent 0, #000 26%, transparent 88%);
  opacity: .36;
  pointer-events: none;
}
.hero-layout { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, .84fr) minmax(0, 1.16fr); gap: 68px; align-items: center; }
.hero-copy { padding-bottom: 30px; }
.hero-lede { max-width: 590px; margin-bottom: 30px; font-size: 18px; line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.reassurance { display: flex; align-items: center; gap: 9px; margin-top: 20px; font-size: 13px; color: #8091AA; }
.reassurance svg { width: 18px; height: 18px; color: var(--blue); flex: 0 0 auto; }

.hero-product { position: relative; min-height: 590px; display: flex; align-items: center; }
.panel { background: linear-gradient(180deg, rgba(12,21,38,.96), rgba(8,15,30,.98)); border: 1px solid var(--border); border-radius: var(--radius-md); box-shadow: var(--shadow); }
.overview-panel { position: relative; z-index: 3; width: 100%; padding: 24px; overflow: hidden; }
.overview-panel::after { content: ""; position: absolute; inset: 0; pointer-events: none; border-radius: inherit; box-shadow: inset -1px 0 rgba(59,158,255,.12), inset 0 1px rgba(255,255,255,.025); }
.panel-topline, .visual-header { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; }
.panel-kicker, .visual-header small { display: block; color: #71829C; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }
.panel-topline h2 { margin: 4px 0 0; font-size: 21px; letter-spacing: -.02em; }
.sample-badge { display: inline-flex; align-items: center; min-height: 26px; padding: 0 9px; border: 1px solid #2A4168; border-radius: 999px; color: #98B3D7; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.sample-badge.small { min-height: 21px; padding: 0 7px; font-size: 9px; }
.overview-toolbar { margin: 24px 0 18px; min-height: 44px; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 0 12px; border: 1px solid var(--border); border-radius: 10px; background: rgba(4,8,15,.46); }
.site-chip { display: flex; align-items: center; gap: 8px; color: #DCE7F8; font-size: 12px; font-weight: 700; }
.site-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 4px rgba(87,215,160,.1); }
.muted { color: #71829C; font-size: 10px; }
.priority-grid { display: grid; grid-template-columns: 1.12fr .88fr; gap: 14px; }
.priority-main, .signal-list { border: 1px solid var(--border); border-radius: 12px; background: rgba(4,8,15,.38); }
.priority-main { min-height: 178px; display: flex; align-items: center; gap: 18px; padding: 18px; }
.score-ring { position: relative; width: 118px; flex: 0 0 118px; }
.score-ring svg { transform: rotate(-90deg); }
.score-ring circle { fill: none; stroke-width: 9; }
.ring-track { stroke: #162440; }
.ring-value { stroke: url(#brandGradient); stroke-linecap: round; animation: ringReveal 1.25s ease both .15s; }
.score-ring > div { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.score-ring strong { font-family: var(--display); font-size: 29px; line-height: 1; }
.score-ring span { margin-top: 6px; color: #71829C; font-size: 9px; text-transform: uppercase; letter-spacing: .06em; }
.signal-label { color: #7F92AD; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }
.score-copy h3 { margin: 7px 0 8px; font-size: 18px; }
.score-copy p { margin: 0; font-size: 11px; line-height: 1.55; }
.signal-list { padding: 9px 14px; }
.signal-row { min-height: 53px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(22,36,64,.72); }
.signal-row:last-child { border-bottom: 0; }
.signal-row > div { display: flex; align-items: center; gap: 9px; }
.signal-row strong, .signal-row > span { font-size: 11px; }
.signal-row small { color: #71829C; font-weight: 500; }
.signal-dot { width: 7px; height: 7px; border-radius: 50%; }
.signal-dot.critical { background: var(--danger); }
.signal-dot.warning { background: var(--warning); }
.signal-dot.info { background: var(--blue); }
.data-path { position: relative; height: 46px; display: flex; align-items: center; justify-content: space-between; margin: 2px 18px 0; }
.data-path-line { position: absolute; left: 6px; right: 6px; height: 1px; background: linear-gradient(90deg, var(--violet), var(--blue), var(--border)); }
.data-path-line::after { content: ""; position: absolute; top: -1px; left: 0; width: 35%; height: 3px; background: linear-gradient(90deg, transparent, #fff, transparent); filter: blur(.5px); animation: trace 4s linear infinite; }
.data-node { position: relative; z-index: 1; width: 9px; height: 9px; border: 2px solid #294267; border-radius: 50%; background: #0B1424; }
.data-node.active { border-color: var(--violet); box-shadow: 0 0 0 5px rgba(123,110,246,.1); }
.audit-table { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.audit-row { min-height: 48px; display: grid; grid-template-columns: 1.3fr .8fr .7fr; align-items: center; gap: 12px; padding: 0 14px; border-bottom: 1px solid rgba(22,36,64,.72); color: #B9C7DB; font-size: 10px; }
.audit-row:last-child { border-bottom: 0; }
.audit-head { min-height: 37px; background: rgba(4,8,15,.45); color: #71829C; font-size: 9px; text-transform: uppercase; letter-spacing: .08em; }
.audit-row > span:first-child { display: flex; align-items: center; gap: 8px; }
.severity { width: 7px; height: 7px; border-radius: 50%; flex: 0 0 auto; }
.severity-high { background: var(--danger); }
.severity-medium { background: var(--warning); }
.priority-tag { display: inline-flex; min-height: 22px; align-items: center; padding: 0 8px; border-radius: 999px; font-size: 8px; text-transform: uppercase; letter-spacing: .05em; }
.priority-tag.high { background: rgba(251,113,133,.09); color: #FF9BAB; border: 1px solid rgba(251,113,133,.2); }
.priority-tag.medium { background: rgba(251,191,36,.08); color: #FACC5D; border: 1px solid rgba(251,191,36,.18); }
.mini-panel { position: absolute; z-index: 4; width: 218px; padding: 14px; }
.mini-panel-left { left: -26px; bottom: 32px; }
.mini-panel-right { right: -20px; top: 34px; }
.mini-title { display: flex; align-items: center; justify-content: space-between; margin-bottom: 13px; color: #B9C7DB; font-size: 10px; font-weight: 700; }
.stacked-bar { height: 8px; display: flex; gap: 3px; margin: 8px 0 12px; }
.stacked-bar span { width: var(--w); border-radius: 999px; background: var(--violet); }
.stacked-bar span:nth-child(2) { background: var(--blue); }
.stacked-bar span:nth-child(3) { background: #27405F; }
.mini-legend { display: flex; gap: 16px; color: #71829C; font-size: 8px; }
.mini-legend span { display: flex; align-items: center; gap: 5px; }
.mini-legend i { width: 6px; height: 6px; border-radius: 50%; }
.mini-legend .violet { background: var(--violet); }
.mini-legend .blue { background: var(--blue); }
.status-dot { color: var(--success); font-size: 9px; }
.mini-panel-right strong { display: block; font-size: 12px; }
.mini-panel-right p { margin: 3px 0 0; font-size: 9px; }
.product-orbit { position: absolute; border: 1px solid rgba(59,158,255,.09); border-radius: 50%; pointer-events: none; }
.product-orbit-one { width: 520px; height: 520px; right: -110px; top: 20px; }
.product-orbit-two { width: 360px; height: 360px; left: -10px; top: 90px; }

.principles-bar { border-bottom: 1px solid var(--border); background: #050A13; }
.principles-grid { min-height: 92px; display: grid; grid-template-columns: repeat(4, 1fr); }
.principles-grid div { display: flex; align-items: center; gap: 14px; padding: 20px 24px; border-right: 1px solid var(--border); }
.principles-grid div:first-child { border-left: 1px solid var(--border); }
.principles-grid span { color: #71829C; font-size: 10px; font-weight: 700; }
.principles-grid strong { color: #AFC0D7; font-size: 12px; }

.section-heading { max-width: 720px; margin-bottom: 66px; }
.section-heading.centered { margin-left: auto; margin-right: auto; text-align: center; }
.section-heading p { max-width: 660px; margin: 0; }
.section-heading.centered p { margin-left: auto; margin-right: auto; }

.narrative { background: linear-gradient(180deg, #04080F, #050A13 48%, #04080F); }
.signal-map { position: relative; min-height: 540px; border: 1px solid var(--border); border-radius: 24px; overflow: hidden; background: radial-gradient(circle at 50% 50%, rgba(59,158,255,.055), transparent 36%), linear-gradient(180deg, rgba(12,21,38,.44), rgba(4,8,15,.7)); }
.signal-map::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(148,163,184,.13) .75px, transparent .75px); background-size: 28px 28px; mask-image: radial-gradient(circle, #000, transparent 78%); }
.signal-source, .signal-output, .signal-core { position: absolute; z-index: 2; border: 1px solid var(--border); background: rgba(8,15,30,.94); box-shadow: 0 18px 50px rgba(0,0,0,.24); }
.signal-source, .signal-output { width: 160px; min-height: 74px; display: grid; align-content: center; padding: 12px 14px; border-radius: 12px; }
.signal-source span, .signal-output span { font-size: 12px; font-weight: 700; }
.signal-source small, .signal-output small { color: #71829C; font-size: 9px; }
.source-one { left: 5%; top: 13%; }
.source-two { left: 3.6%; top: 44%; }
.source-three { left: 6%; bottom: 12%; }
.source-four { left: 27%; bottom: 4%; }
.output-one { right: 5%; top: 15%; }
.output-two { right: 3.5%; top: 45%; }
.output-three { right: 6%; bottom: 12%; }
.signal-core { left: 50%; top: 50%; transform: translate(-50%, -50%); width: 190px; height: 190px; display: grid; place-content: center; text-align: center; border-radius: 50%; border-color: #294267; }
.signal-core::before { content: ""; position: absolute; inset: 15px; border: 1px solid rgba(123,110,246,.25); border-radius: 50%; }
.signal-core .core-label { color: #91A7C6; font-size: 9px; letter-spacing: .12em; font-weight: 700; }
.signal-core strong { margin: 5px 0 2px; font-family: var(--display); font-size: 20px; }
.signal-core p { margin: 0; font-size: 9px; }
.core-pulse { position: absolute; inset: -18px; border: 1px solid rgba(59,158,255,.11); border-radius: 50%; animation: corePulse 4s ease-out infinite; }
.signal-lines { position: absolute; inset: 0; width: 100%; height: 100%; }
.signal-lines path { fill: none; stroke: rgba(59,158,255,.22); stroke-width: 1.2; stroke-dasharray: 5 8; }

.platform { background: #050A13; }
.editorial-row { display: grid; grid-template-columns: .8fr 1.2fr; gap: 82px; align-items: center; padding: 80px 0; border-top: 1px solid var(--border); }
.editorial-row:last-child { border-bottom: 1px solid var(--border); }
.editorial-row.reverse { grid-template-columns: 1.2fr .8fr; }
.editorial-row.reverse .editorial-copy { order: 2; }
.editorial-row.reverse .editorial-visual { order: 1; }
.section-index { display: block; margin-bottom: 22px; color: #71829C; font-size: 11px; font-weight: 700; letter-spacing: .1em; }
.editorial-copy p { margin-bottom: 24px; }
.check-list { list-style: none; margin: 0 0 24px; padding: 0; display: grid; gap: 10px; }
.check-list li { position: relative; padding-left: 24px; color: #BDCADC; font-size: 14px; }
.check-list li::before { content: ""; position: absolute; left: 0; top: .72em; width: 10px; height: 1px; background: linear-gradient(90deg, var(--violet), var(--blue)); }
.verification-note { display: inline-flex; padding: 7px 10px; border: 1px solid #233653; border-radius: 8px; color: #71829C; font-size: 10px; }
.editorial-visual { min-height: 430px; padding: 24px; overflow: hidden; }
.visual-header strong { display: block; margin-top: 3px; font-family: var(--display); font-size: 18px; }
.metric-strip { display: grid; grid-template-columns: repeat(3, 1fr); margin: 24px 0 6px; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.metric-strip > div { min-height: 92px; padding: 14px; border-right: 1px solid var(--border); }
.metric-strip > div:last-child { border-right: 0; }
.metric-strip span, .metric-strip small { display: block; color: #71829C; font-size: 9px; }
.metric-strip strong { display: inline-block; margin: 8px 4px 0 0; font-family: var(--display); font-size: 25px; }
.trend-area { margin-top: 20px; padding-top: 8px; border-top: 1px solid rgba(22,36,64,.7); }
.trend-area svg { width: 100%; min-height: 240px; }
.chart-grid { fill: none; stroke: rgba(36,56,93,.55); stroke-width: 1; }
.chart-area { fill: url(#areaFade); }
.chart-line { fill: none; stroke: var(--blue); stroke-width: 3; stroke-linecap: round; }
.chart-point { fill: var(--bg); stroke: var(--blue); stroke-width: 3; }
.evidence-layout { display: grid; grid-template-columns: 160px 1fr; gap: 20px; margin-top: 30px; }
.evidence-nav { display: grid; align-content: start; gap: 6px; }
.evidence-nav button { min-height: 44px; padding: 0 12px; border: 1px solid transparent; border-radius: 9px; background: transparent; color: #7487A3; text-align: left; font-size: 11px; cursor: pointer; }
.evidence-nav button.active { border-color: #263C61; background: rgba(59,158,255,.07); color: #CFE0F5; }
.evidence-content { padding: 4px 0; }
.evidence-block { padding: 0 0 20px; margin-bottom: 20px; border-bottom: 1px solid var(--border); }
.evidence-block:last-child { border-bottom: 0; }
.evidence-block span { color: #71829C; font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: .09em; }
.evidence-block p { margin: 6px 0 0; font-size: 13px; }
.action-list { display: grid; gap: 10px; margin-top: 30px; }
.action-item { min-height: 82px; display: grid; grid-template-columns: 42px 1fr auto; gap: 14px; align-items: center; padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: rgba(4,8,15,.38); }
.action-item.active { border-color: #2E4D7D; background: rgba(59,158,255,.055); }
.action-number { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid #294267; border-radius: 9px; color: #94B3DB; font-size: 10px; }
.action-item strong, .action-item small { display: block; }
.action-item strong { font-size: 12px; }
.action-item small { margin-top: 3px; color: #71829C; font-size: 9px; }
.action-item b { color: #89A4C9; font-size: 9px; text-transform: uppercase; letter-spacing: .08em; }

.workflow { background: var(--bg); }
.workflow-track { position: relative; list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 0; padding: 0; }
.workflow-track::before { content: ""; position: absolute; top: 26px; left: 12.5%; right: 12.5%; height: 1px; background: linear-gradient(90deg, var(--violet), var(--blue), #28405F); }
.workflow-track li { position: relative; z-index: 1; padding: 0 26px; text-align: center; }
.workflow-number { width: 52px; height: 52px; display: grid; place-items: center; margin: 0 auto 24px; border: 1px solid #294267; border-radius: 50%; background: var(--bg); color: #9CB4D4; font-size: 10px; font-weight: 700; }
.workflow-track strong { display: block; margin-bottom: 7px; font-family: var(--display); font-size: 16px; }
.workflow-track p { margin: 0; font-size: 12px; }

.methodology { background: #050A13; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.methodology-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: start; }
.methodology-copy { position: sticky; top: 120px; }
.text-arrow { display: inline-flex; align-items: center; gap: 10px; margin-top: 16px; color: #CFE0F5; font-size: 13px; font-weight: 700; }
.methodology-matrix { overflow: hidden; box-shadow: none; }
.matrix-row { display: grid; grid-template-columns: .7fr 1fr; gap: 8px 24px; min-height: 112px; align-content: center; padding: 22px 26px; border-bottom: 1px solid var(--border); }
.matrix-row:last-child { border-bottom: 0; }
.matrix-row > span { grid-row: span 2; color: #71829C; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.matrix-row strong { font-family: var(--display); font-size: 15px; }
.matrix-row small { color: #71829C; font-size: 11px; }

.use-cases { background: var(--bg); }
.tabs { display: grid; grid-template-columns: 260px 1fr; gap: 24px; align-items: start; }
.tab-list { display: grid; gap: 8px; }
.tab-list button { min-height: 56px; padding: 0 18px; border: 1px solid var(--border); border-radius: 10px; background: transparent; color: #71829C; text-align: left; font-size: 13px; font-weight: 700; cursor: pointer; }
.tab-list button[aria-selected="true"] { border-color: #2A466F; background: rgba(59,158,255,.06); color: #DCE7F8; }
.tab-panel { min-height: 390px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 54px; align-items: center; padding: 44px; box-shadow: none; }
.tab-label { display: block; margin-bottom: 16px; color: #71829C; font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }
.tab-panel h3 { font-size: 31px; }
.tab-visual { display: grid; gap: 10px; }
.tab-stat { min-height: 82px; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 14px 16px; border: 1px solid var(--border); border-radius: 10px; background: rgba(4,8,15,.4); }
.tab-stat span { color: #71829C; font-size: 10px; text-transform: uppercase; letter-spacing: .07em; }
.tab-stat strong { font-size: 12px; text-align: right; }

.walkthrough { background: #050A13; }
.walkthrough-layout { display: grid; grid-template-columns: 1.12fr .88fr; gap: 86px; align-items: center; }
.walkthrough-visual { padding: 28px; box-shadow: none; }
.walkthrough-steps { display: grid; grid-template-columns: 1fr 28px 1fr 28px 1fr; align-items: center; margin: 44px 0 34px; }
.walkthrough-step { text-align: center; }
.walkthrough-step > span { width: 42px; height: 42px; display: grid; place-items: center; margin: 0 auto 12px; border: 1px solid var(--border); border-radius: 50%; background: #07101E; color: #8091AA; font-size: 11px; }
.walkthrough-step.complete > span { border-color: rgba(87,215,160,.38); color: var(--success); }
.walkthrough-step.active > span { border-color: var(--blue); color: #DCEEFF; box-shadow: 0 0 0 6px rgba(59,158,255,.08); }
.walkthrough-step strong { display: block; font-size: 11px; }
.walkthrough-step small { display: block; margin-top: 3px; color: #71829C; font-size: 8px; }
.walkthrough-connector { height: 1px; background: var(--border); }
.walkthrough-detail { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.walkthrough-detail > div { padding: 14px; border-right: 1px solid var(--border); }
.walkthrough-detail > div:last-child { border-right: 0; }
.walkthrough-detail span, .walkthrough-detail strong { display: block; }
.walkthrough-detail span { color: #71829C; font-size: 8px; text-transform: uppercase; letter-spacing: .08em; }
.walkthrough-detail strong { margin-top: 6px; font-size: 10px; }
.copy-rule { display: grid; grid-template-columns: 34px 1fr; gap: 14px; padding: 17px 0; border-top: 1px solid var(--border); }
.copy-rule:last-child { border-bottom: 1px solid var(--border); }
.copy-rule span { color: #8091AA; font-size: 10px; font-weight: 700; }
.copy-rule p { margin: 0; font-size: 13px; }

.security { background: var(--bg); }
.security-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 70px; }
.security-layout .section-heading { margin-bottom: 0; }
.security-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--border); border-left: 1px solid var(--border); }
.security-item { min-height: 230px; padding: 28px; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.security-icon { display: grid; place-items: center; width: 36px; height: 36px; margin-bottom: 26px; border: 1px solid #294267; border-radius: 10px; color: #84A4D0; font-size: 9px; }
.security-item h3 { font-size: 18px; }
.security-item p { margin: 0; font-size: 12px; }

.faq { background: #050A13; border-top: 1px solid var(--border); }
.faq-layout { display: grid; grid-template-columns: .68fr 1.32fr; gap: 80px; }
.faq-layout .section-heading { margin-bottom: 0; }
.accordion details { border-top: 1px solid var(--border); }
.accordion details:last-child { border-bottom: 1px solid var(--border); }
.accordion summary { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; color: #DCE7F8; font-family: var(--display); font-size: 16px; font-weight: 600; cursor: pointer; list-style: none; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary span { color: #71829C; font-family: var(--body); font-size: 22px; font-weight: 400; transition: transform .2s ease; }
.accordion details[open] summary span { transform: rotate(45deg); }
.accordion details p { max-width: 720px; margin: -4px 0 28px; font-size: 14px; }

.final-cta { position: relative; overflow: hidden; padding: 130px 0; text-align: center; border-top: 1px solid var(--border); }
.final-cta::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 50% 110%, rgba(59,158,255,.14), transparent 44%); }
.final-cta-grid { position: absolute; left: 20%; right: 20%; bottom: -28%; height: 64%; background-image: linear-gradient(rgba(59,158,255,.14) 1px, transparent 1px), linear-gradient(90deg, rgba(59,158,255,.14) 1px, transparent 1px); background-size: 54px 54px; transform: perspective(500px) rotateX(62deg); mask-image: linear-gradient(to bottom, transparent, #000 38%, transparent); opacity: .45; }
.final-cta-inner { position: relative; z-index: 1; max-width: 780px; }
.final-cta h2 { margin-top: 24px; font-size: clamp(2.8rem, 5vw, 4rem); }
.final-cta p { max-width: 570px; margin: 0 auto 30px; }
.centered-actions { justify-content: center; }

.site-footer { padding: 70px 0 24px; border-top: 1px solid var(--border); background: #03070D; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, .75fr); gap: 50px; padding-bottom: 60px; }
.footer-brand p { max-width: 320px; margin: 20px 0 0; font-size: 12px; }
.footer-column { display: grid; align-content: start; gap: 10px; }
.footer-column strong { margin-bottom: 6px; color: #DCE7F8; font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.footer-column a { color: #71829C; font-size: 12px; }
.footer-column a:hover { color: white; }
.footer-bottom { min-height: 54px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--border); color: #71829C; font-size: 10px; }
.toast { position: fixed; left: 50%; bottom: 24px; z-index: 120; transform: translateX(-50%); padding: 10px 14px; border: 1px solid var(--border-strong); border-radius: 10px; background: #0C1526; color: #CFE0F5; box-shadow: var(--shadow); font-size: 12px; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .45s ease, transform .45s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@keyframes trace { from { transform: translateX(-120%); } to { transform: translateX(360%); } }
@keyframes ringReveal { from { stroke-dasharray: 0 100; } }
@keyframes corePulse { 0% { transform: scale(.88); opacity: 0; } 38% { opacity: .7; } 100% { transform: scale(1.15); opacity: 0; } }

@media (max-width: 1100px) {
  .desktop-nav { gap: 16px; }
  .hero-layout { grid-template-columns: .9fr 1.1fr; gap: 38px; }
  .hero-product { transform: scale(.92); transform-origin: right center; }
  .editorial-row, .editorial-row.reverse { gap: 52px; }
  .methodology-layout, .walkthrough-layout { gap: 56px; }
}

@media (max-width: 980px) {
  .desktop-nav, .desktop-only { display: none; }
  .menu-button { display: block; }
  .hero { min-height: auto; padding-top: 140px; }
  .hero-layout { grid-template-columns: 1fr; gap: 46px; }
  .hero-copy { max-width: 760px; }
  .hero-product { width: min(100%, 760px); margin: 0 auto; transform: none; }
  .principles-grid { grid-template-columns: repeat(2, 1fr); }
  .principles-grid div:nth-child(3) { border-left: 1px solid var(--border); border-top: 1px solid var(--border); }
  .principles-grid div:nth-child(4) { border-top: 1px solid var(--border); }
  .editorial-row, .editorial-row.reverse { grid-template-columns: 1fr; gap: 34px; padding: 64px 0; }
  .editorial-row.reverse .editorial-copy, .editorial-row.reverse .editorial-visual { order: initial; }
  .editorial-copy { max-width: 720px; }
  .methodology-layout, .walkthrough-layout, .security-layout, .faq-layout { grid-template-columns: 1fr; gap: 52px; }
  .methodology-copy { position: static; }
  .tabs { grid-template-columns: 1fr; }
  .tab-list { display: flex; overflow-x: auto; padding-bottom: 4px; }
  .tab-list button { flex: 0 0 auto; min-width: 180px; }
  .footer-grid { grid-template-columns: 1.3fr repeat(3, 1fr); gap: 28px; }
}

@media (max-width: 760px) {
  .shell { width: min(calc(100% - 28px), var(--shell)); }
  .section { padding: 82px 0; }
  body { font-size: 16px; }
  h1 { font-size: clamp(2.25rem, 11vw, 2.75rem); }
  h2 { font-size: clamp(1.9rem, 8vw, 2.25rem); }
  .header-inner { min-height: 68px; }
  .brand-mark { width: 32px; height: 32px; }
  .hero { padding: 118px 0 78px; }
  .hero-lede { font-size: 16px; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .button-large { width: 100%; }
  .hero-product { min-height: 500px; align-items: flex-start; }
  .overview-panel { padding: 16px; }
  .priority-grid { grid-template-columns: 1fr; }
  .priority-main { min-height: 155px; }
  .signal-list { display: grid; grid-template-columns: repeat(3, 1fr); padding: 4px 8px; }
  .signal-row { display: grid; justify-content: initial; text-align: center; border-bottom: 0; border-right: 1px solid var(--border); }
  .signal-row:last-child { border-right: 0; }
  .signal-row > div { display: grid; justify-items: center; gap: 4px; }
  .audit-row { grid-template-columns: 1.3fr .7fr; }
  .audit-row > span:nth-child(2) { display: none; }
  .mini-panel { width: 176px; }
  .mini-panel-left { left: 4px; bottom: -18px; }
  .mini-panel-right { right: 4px; top: -24px; }
  .principles-grid { grid-template-columns: 1fr; }
  .principles-grid div, .principles-grid div:first-child, .principles-grid div:nth-child(3) { min-height: 66px; border-left: 1px solid var(--border); border-right: 1px solid var(--border); border-top: 1px solid var(--border); }
  .principles-grid div:first-child { border-top: 0; }
  .section-heading { margin-bottom: 44px; }
  .signal-map { min-height: auto; display: grid; grid-template-columns: 1fr; gap: 10px; padding: 20px; }
  .signal-source, .signal-output, .signal-core { position: relative; inset: auto; width: 100%; min-height: 70px; transform: none; border-radius: 12px; }
  .signal-core { height: 130px; order: 5; }
  .source-one { order: 1; }.source-two { order: 2; }.source-three { order: 3; }.source-four { order: 4; }
  .output-one { order: 6; }.output-two { order: 7; }.output-three { order: 8; }
  .signal-lines { display: none; }
  .editorial-row, .editorial-row.reverse { padding: 54px 0; }
  .editorial-visual { min-height: auto; padding: 18px; }
  .metric-strip { grid-template-columns: 1fr; }
  .metric-strip > div { min-height: 72px; border-right: 0; border-bottom: 1px solid var(--border); }
  .metric-strip > div:last-child { border-bottom: 0; }
  .trend-area svg { min-height: 180px; }
  .evidence-layout { grid-template-columns: 1fr; }
  .evidence-nav { display: flex; overflow-x: auto; }
  .evidence-nav button { white-space: nowrap; }
  .workflow-track { grid-template-columns: 1fr; gap: 0; }
  .workflow-track::before { top: 0; bottom: 0; left: 25px; right: auto; width: 1px; height: auto; }
  .workflow-track li { min-height: 130px; display: grid; grid-template-columns: 52px 1fr; gap: 18px; padding: 0; text-align: left; }
  .workflow-number { margin: 0; }
  .workflow-track li > div { padding-top: 4px; }
  .matrix-row { grid-template-columns: 1fr; gap: 6px; }
  .matrix-row > span { grid-row: auto; }
  .tab-panel { grid-template-columns: 1fr; gap: 34px; padding: 28px 20px; }
  .tab-panel h3 { font-size: 25px; }
  .walkthrough-steps { grid-template-columns: 1fr; gap: 10px; }
  .walkthrough-step { display: grid; grid-template-columns: 44px 1fr; gap: 12px; align-items: center; text-align: left; }
  .walkthrough-step > span { margin: 0; }
  .walkthrough-connector { width: 1px; height: 24px; margin-left: 21px; }
  .walkthrough-detail { grid-template-columns: 1fr; }
  .walkthrough-detail > div { border-right: 0; border-bottom: 1px solid var(--border); }
  .walkthrough-detail > div:last-child { border-bottom: 0; }
  .security-grid { grid-template-columns: 1fr; }
  .security-item { min-height: 190px; }
  .accordion summary { min-height: 74px; font-size: 14px; }
  .final-cta { padding: 90px 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { align-items: flex-start; flex-direction: column; justify-content: center; gap: 2px; }
}

@media (max-width: 420px) {
  .hero-product { min-height: 530px; }
  .priority-main { display: grid; grid-template-columns: 95px 1fr; gap: 12px; padding: 12px; }
  .score-ring { width: 95px; }
  .score-copy h3 { font-size: 15px; }
  .mini-panel { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}