/* COGNIS marketing site.
 *
 * The palette, type and radii are the COGNIS shell's own (COGNIS/ui/src/styles/shell.css,
 * COGNIS/ui/DESIGN.md) so the site and the product read as one thing: slate "ink" grounds,
 * one cyan accent for selection and action, and every other saturated colour carrying a
 * meaning (live, replay, alert bands, CISE). IBM Plex Serif is the site's only addition,
 * for display headings.
 *
 * Layout: desktop first at 1440 px, with two breakpoints —
 *   ≤ 1100 px  the hero stacks (globe below the copy) and wide grids drop a column;
 *   ≤ 720 px   phone: single column, full-width buttons, collapsed navigation.
 */

:root {
  --ink-0: #05080c;
  --ink-1: #0b1219;
  --ink-2: #111b25;
  --ink-3: #1a2734;
  --cise-ground: #0c1014;
  --line: rgba(200, 218, 236, 0.12);
  --line-strong: rgba(200, 218, 236, 0.24);
  --glass: rgba(11, 18, 25, 0.86);

  --fg: #e6edf3;
  --fg-muted: #8fa1b3;
  --fg-dim: #7a8c9e;          /* ≥ 5.0:1 on every ink ground (WCAG AA); was #5f7080 at 3.4–3.9:1 */

  --accent: #5be7dc;
  --accent-hover: #a6f3ec;
  --live: #38b26d;
  --playing: #4c8df6;
  --critical: #ff5c5c;
  --warning: #ff9b4a;
  --info: #5aa9ff;
  --band-fresh: #4fd58a;
  --band-aging: #c9d36a;
  --band-stale: #f5c542;
  --band-ghost: #8fa1b3;
  --cise: #d9b25a;
  --cise-soft: #e9cf8f;

  --sans: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --serif: 'IBM Plex Serif', Georgia, serif;

  --gutter: 80px;
  --r-1: 6px;
  --r-2: 10px;
  --r-3: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--ink-0);
  color: var(--fg);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3, p { margin: 0; }
img, svg { display: block; }

.skip-link { position: absolute; left: -9999px; top: 8px; z-index: 100; padding: 10px 16px; background: var(--accent); color: var(--ink-0); border-radius: var(--r-2); font-weight: 600; }
.skip-link:focus { left: 16px; }

.wrap { max-width: 1440px; margin: 0 auto; padding: 0 var(--gutter); }
.tabular { font-variant-numeric: tabular-nums; }

/* ---------- type ---------- */
.eyebrow { font-size: 14px; color: var(--accent); }
.eyebrow--sim { color: var(--playing); }
.display { font-family: var(--serif); font-weight: 400; letter-spacing: -0.015em; line-height: 1.1; }
.display em { font-style: italic; color: var(--accent); }
.h2 { font-size: 52px; }
.h2--lg { font-size: 56px; line-height: 1.08; }
.h2--md { font-size: 48px; }
.lead { font-size: 17px; line-height: 1.6; color: var(--fg-muted); }
.muted { color: var(--fg-muted); }
.dim { color: var(--fg-dim); }
.h3 { font-size: 20px; font-weight: 600; }
.body { font-size: 15px; line-height: 1.6; color: var(--fg-muted); }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; height: 52px; padding: 0 26px; border-radius: var(--r-2); font-weight: 600; font-size: 16px; white-space: nowrap; }
.btn--primary { background: var(--accent); color: var(--ink-0); }
.btn--primary:hover { background: var(--accent-hover); color: var(--ink-0); }
.btn--ghost { border: 1px solid var(--line-strong); color: var(--fg); font-weight: 500; background: rgba(5, 8, 12, 0.6); }
.btn--ghost:hover { border-color: var(--accent); color: var(--fg); }
.btn--cise { background: var(--cise); color: var(--ink-0); }
.btn--cise:hover { background: var(--cise-soft); color: var(--ink-0); }
.btn--sm { height: 44px; padding: 0 20px; font-size: 15px; }

/* ---------- nav ---------- */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(5, 8, 12, 0.92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav__inner { height: 84px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--fg); }
.brand:hover { color: var(--fg); }
.brand__name { font-size: 19px; font-weight: 600; letter-spacing: 0.14em; }
.brand__by { font-size: 13px; color: var(--fg-dim); padding-left: 12px; border-left: 1px solid rgba(200, 218, 236, 0.18); }
.nav__links { display: flex; align-items: center; gap: 34px; font-size: 15px; }
.nav__links a:not(.btn) { color: var(--fg-muted); }
.nav__links a:not(.btn):hover { color: var(--fg); }
.nav__toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; color: var(--fg); cursor: pointer; align-items: center; justify-content: center; }
.nav__demo-sm { display: none; }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; height: 900px; }
.hero__copy { position: relative; z-index: 2; width: 640px; padding-top: 128px; display: flex; flex-direction: column; gap: 28px; }
.status { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--fg-muted); }
.status__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--live); box-shadow: 0 0 10px var(--live); animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 2px var(--live); opacity: 0.7; } }
@media (prefers-reduced-motion: reduce) { .status__dot { animation: none; } }
.hero__title { font-size: 84px; line-height: 1; letter-spacing: -0.02em; }
.hero__lead { font-size: 20px; line-height: 1.55; color: var(--fg-muted); max-width: 560px; }
.hero__after { position: relative; z-index: 2; }
.hero__after-inner { width: 640px; max-width: 100%; display: flex; flex-direction: column; gap: 28px; margin-top: 36px; }
.hero__ctas { display: flex; gap: 14px; }
.chips { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; font-size: 13.5px; color: var(--fg-muted); list-style: none; padding: 0; }
.chips li { padding: 6px 12px; border-radius: 16px; border: 1px solid rgba(200, 218, 236, 0.16); }

/* The globe stage is authored at 900 × 900; every overlay is positioned in those coordinates. */
.hero__visual { position: absolute; right: calc(50% - 890px); top: -30px; width: 900px; height: 900px; }
@media (max-width: 1440px) { .hero__visual { right: -170px; } }
.stage { position: absolute; left: 0; top: 0; width: 900px; height: 900px; }
.stage > img, .stage > svg { position: absolute; inset: 0; width: 100%; height: 100%; }

.glass { background: var(--glass); border: 1px solid rgba(200, 218, 236, 0.18); box-shadow: var(--shadow); border-radius: var(--r-3); }
.entity-card { position: absolute; left: 60px; top: 590px; width: 272px; padding: 16px 18px; display: flex; flex-direction: column; gap: 10px; z-index: 3; }
.entity-card__head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.entity-card__name { font-size: 15px; font-weight: 600; }
.entity-card__age { font-size: 12px; color: var(--band-fresh); white-space: nowrap; }
.kv { display: grid; grid-template-columns: 84px minmax(0, 1fr); gap: 6px 12px; font-size: 13px; margin: 0; }
.kv dt { color: var(--fg-muted); }
.kv dd { margin: 0; }
.actions { display: flex; gap: 8px; }
.pill { font-size: 12px; padding: 5px 10px; border-radius: var(--r-1); background: var(--ink-3); }
.insight-chip { position: absolute; left: 466px; top: 524px; width: 238px; padding: 12px 14px; display: flex; flex-direction: column; gap: 6px; border-color: rgba(255, 155, 74, 0.45); border-radius: 12px; z-index: 3; }
.insight-chip__tag { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--warning); font-weight: 600; }
.insight-chip__title { font-size: 14px; font-weight: 600; }
.insight-chip__body { font-size: 12.5px; color: var(--fg-muted); line-height: 1.45; }

/* 3D globe (globe/hero3d.js): fades in over the SVG globe, which stays as the fallback. */
.globe3d { position: absolute; left: -6%; top: -6%; width: 112%; height: 112%; max-width: none; opacity: 0; transition: opacity 0.9s ease; touch-action: pan-y; cursor: grab; }
.globe3d:active { cursor: grabbing; }
.stage > img, .stage > svg { transition: opacity 0.9s ease; }
.hero__visual.is-3d .globe3d { opacity: 1; }
.hero__visual.is-3d .stage > img, .hero__visual.is-3d .stage > svg { opacity: 0; }
.insight-chip { transition: opacity 0.5s ease, transform 0.5s ease; }
.insight-chip.is-off { opacity: 0; transform: translateY(8px); }
@media (prefers-reduced-motion: reduce) { .globe3d, .stage > img, .stage > svg, .insight-chip { transition: none; } }

/* The ribbon becomes a scrubber once the 3D globe drives it. */
.ribbon__scrub { display: none; }
.ribbon.is-live .ribbon__scrub { display: block; position: absolute; left: 0; right: 0; top: -16px; width: 100%; height: 34px; margin: 0; opacity: 0; cursor: ew-resize; }
.ribbon.is-live .track:focus-within .track__cursor { outline: 2px solid var(--accent); outline-offset: 3px; }
.track__tick { transition: opacity 0.3s ease; }

.ribbon-wrap { position: absolute; left: 0; right: 0; bottom: 40px; z-index: 2; }
.ribbon { height: 44px; display: flex; align-items: center; gap: 18px; font-size: 13px; color: var(--fg-muted); }
.mode { display: inline-flex; align-items: center; gap: 8px; height: 28px; padding: 0 12px; border-radius: var(--r-1); font-weight: 600; white-space: nowrap; }
.mode--live { background: rgba(56, 178, 109, 0.14); color: var(--live); }
.mode--live::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--live); }
.mode--replay { background: rgba(76, 141, 246, 0.16); color: var(--playing); height: 26px; padding: 0 10px; }
.track { flex-grow: 1; position: relative; height: 2px; background: rgba(200, 218, 236, 0.18); }
.track__fill { position: absolute; left: 0; top: 0; height: 2px; }
.track__cursor { position: absolute; top: -6px; width: 14px; height: 14px; margin-left: -7px; border-radius: 50%; }
.track__tick { position: absolute; top: -5px; width: 2px; height: 12px; }
.track--live .track__fill { width: 88%; background: linear-gradient(90deg, rgba(56, 178, 109, 0), var(--live)); }
.track--live .track__cursor { left: 88%; background: var(--live); box-shadow: 0 0 16px 4px rgba(56, 178, 109, 0.55); }
.track--replay .track__fill { width: 42%; background: linear-gradient(90deg, rgba(76, 141, 246, 0), var(--playing)); }
.track--replay .track__cursor { left: 42%; background: var(--playing); box-shadow: 0 0 16px 4px rgba(76, 141, 246, 0.5); }

/* ---------- sources strip ---------- */
.sources { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--ink-1); }
.sources__inner { min-height: 140px; display: flex; align-items: center; gap: 48px; }
.sources__label { font-size: 14px; line-height: 1.5; color: var(--fg-dim); width: 180px; flex-shrink: 0; }
.sources__main { flex-grow: 1; min-width: 0; display: flex; flex-direction: column; gap: 14px; padding: 30px 0; }
.sources__also { font-size: 14px; line-height: 1.55; color: var(--fg-dim); }
.sources__list { flex-grow: 1; display: flex; justify-content: space-between; gap: 16px; font-size: 17px; font-weight: 500; color: var(--fg-muted); list-style: none; margin: 0; padding: 0; }

/* ---------- sections ---------- */
.section { padding: 130px 0; }
.section--alt { background: var(--ink-1); border-top: 1px solid var(--line); }
.section--tight { padding: 110px 0; }
.stack { display: flex; flex-direction: column; }
.gap-64 { gap: 64px; } .gap-56 { gap: 56px; } .gap-52 { gap: 52px; } .gap-28 { gap: 28px; } .gap-22 { gap: 22px; } .gap-18 { gap: 18px; } .gap-14 { gap: 14px; } .gap-10 { gap: 10px; }
.head-split { display: flex; justify-content: space-between; align-items: flex-end; gap: 80px; }
.head-split > p { max-width: 440px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 40px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 20px; }
.card { border-radius: var(--r-3); border: 1px solid var(--line); padding: 32px; display: flex; flex-direction: column; gap: 14px; }
.card--filled { background: var(--ink-2); padding: 28px; gap: 10px; }
.card--deep { background: var(--ink-0); padding: 40px; gap: 28px; }
.card--sunk { background: var(--ink-1); padding: 26px; gap: 10px; }
.ruled { display: flex; flex-direction: column; gap: 10px; border-top: 1px solid var(--line-strong); padding-top: 22px; }
.ruled h3 { font-size: 18px; font-weight: 600; }
.tag { font-size: 13px; font-weight: 600; letter-spacing: 0.08em; color: var(--accent); }
.tag--cise { color: var(--cise); }

/* ---------- AI ---------- */
.ai-head { display: grid; grid-template-columns: minmax(0, 1fr) 460px; gap: 80px; align-items: end; }
.ai-body { display: grid; grid-template-columns: minmax(0, 1fr) 500px; gap: 48px; align-items: start; }
.cells { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-3); overflow: hidden; }
.cells > div { background: var(--ink-0); padding: 32px; display: flex; flex-direction: column; gap: 10px; }
.cells h3 { font-size: 19px; font-weight: 600; }
.feed { margin: 0; border-radius: 16px; background: var(--ink-1); border: 1px solid rgba(200, 218, 236, 0.14); padding: 22px; display: flex; flex-direction: column; gap: 14px; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5); }
.feed__head { display: flex; justify-content: space-between; align-items: center; font-size: 14px; }
.insight { padding: 16px; border-radius: 12px; background: var(--ink-2); border: 1px solid var(--line); display: flex; flex-direction: column; gap: 10px; }
.insight--hot { border-color: rgba(255, 155, 74, 0.35); }
.insight__meta { display: flex; justify-content: space-between; gap: 12px; font-size: 12.5px; }
.insight__meta b { font-weight: 600; }
.insight__text { font-size: 14px; line-height: 1.5; }
.evidence { display: flex; gap: 6px; flex-wrap: wrap; font-size: 12px; color: var(--fg-muted); }
.evidence span { padding: 3px 8px; border-radius: var(--r-1); background: var(--ink-3); }
.ask { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }
.ask__label { font-size: 12.5px; color: var(--fg-muted); }
.ask__row { display: flex; gap: 8px; }
.ask__field { flex-grow: 1; min-width: 0; height: 44px; display: flex; align-items: center; padding: 0 14px; border-radius: var(--r-2); border: 1px solid var(--line-strong); background: var(--ink-0); font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ask__go { width: 44px; height: 44px; flex-shrink: 0; border-radius: var(--r-2); background: var(--accent); display: flex; align-items: center; justify-content: center; }
.c-warning { color: var(--warning); } .c-stale { color: var(--band-stale); } .c-info { color: var(--info); } .c-cise { color: var(--cise); } .c-fresh { color: var(--band-fresh); }

/* ---------- picture ---------- */
.screen { height: 200px; border-radius: var(--r-2); background: var(--ink-2); padding: 22px; display: flex; flex-direction: column; justify-content: flex-end; gap: 14px; }
.screen__bar { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--fg-muted); }
.screen__span { margin-left: auto; padding: 3px 8px; border-radius: var(--r-1); border: 1px solid rgba(200, 218, 236, 0.18); }
.bands { height: 200px; border-radius: var(--r-2); background: var(--ink-2); display: flex; align-items: center; justify-content: space-around; padding: 0 20px; list-style: none; margin: 0; }
.bands li { display: flex; flex-direction: column; align-items: center; gap: 16px; font-size: 13px; color: var(--fg-muted); }
.bands i { width: 18px; height: 18px; border-radius: 50%; }
.b-fresh { background: var(--band-fresh); box-shadow: 0 0 0 4px rgba(79, 213, 138, 0.18); }
.b-aging { background: var(--band-aging); box-shadow: 0 0 0 8px rgba(201, 211, 106, 0.14); }
.b-stale { background: var(--band-stale); opacity: 0.8; box-shadow: 0 0 0 13px rgba(245, 197, 66, 0.12); }
.b-ghost { background: var(--band-ghost); opacity: 0.5; box-shadow: 0 0 0 18px rgba(143, 161, 179, 0.1); }
.big-h3 { font-size: 24px; font-weight: 600; }
.big-p { font-size: 16px; line-height: 1.6; color: var(--fg-muted); }

/* ---------- operate ---------- */
.operate { display: grid; grid-template-columns: 520px minmax(0, 1fr); gap: 56px; align-items: start; }
.ring { position: relative; aspect-ratio: 520 / 560; border-radius: 16px; background: var(--ink-1); border: 1px solid var(--line); overflow: hidden; }
.ring > svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.ring__hint { position: absolute; left: 24px; right: 24px; top: 22px; font-size: 12.5px; color: var(--fg-dim); }
.cap { position: absolute; font-size: 12.5px; padding: 7px 12px; border-radius: 16px; background: var(--ink-3); border: 1px solid rgba(200, 218, 236, 0.18); white-space: nowrap; }
.cap--on { border-color: rgba(91, 231, 220, 0.6); color: var(--accent); font-weight: 600; }
.ring__bar { position: absolute; left: 24px; right: 24px; bottom: 24px; padding: 16px 18px; border-radius: 12px; background: rgba(11, 18, 25, 0.9); border: 1px solid rgba(200, 218, 236, 0.18); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.ring__bar b { font-size: 14px; font-weight: 600; display: block; }
.ring__bar small { font-size: 12.5px; color: var(--fg-muted); }
.ring__send { display: inline-flex; align-items: center; height: 36px; padding: 0 14px; border-radius: 8px; background: var(--accent); color: var(--ink-0); font-size: 13px; font-weight: 600; flex-shrink: 0; }

.ladder { list-style: none; margin: 0; padding: 0; }
.ladder li { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 20px; }
.ladder__rail { display: flex; flex-direction: column; align-items: center; }
.ladder__rail::after { content: ""; flex-grow: 1; width: 1px; min-height: 40px; background: rgba(200, 218, 236, 0.2); }
.ladder li:last-child .ladder__rail::after { display: none; }
.ladder__n { width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(200, 218, 236, 0.4); font-weight: 600; font-size: 15px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.ladder li:nth-child(1) .ladder__n { background: var(--accent); border-color: var(--accent); color: var(--ink-0); }
.ladder li:nth-child(2) .ladder__n { border-color: var(--accent); color: var(--accent); }
.ladder__body { display: flex; flex-direction: column; gap: 8px; padding: 6px 0 28px; }
.ladder__body h3 { font-size: 22px; font-weight: 600; }
.ladder__body p { font-size: 15.5px; line-height: 1.6; color: var(--fg-muted); }
.flow { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 12.5px; margin-top: 6px; }
.flow span { padding: 5px 10px; border-radius: var(--r-1); background: var(--ink-3); }
.flow .flow__if { background: transparent; border: 1px dashed rgba(91, 231, 220, 0.6); color: var(--accent); }
.flow .flow__arrow { background: none; padding: 0; color: var(--fg-dim); }

/* ---------- platform ---------- */
.backbone { margin-top: 0; width: 100%; height: 56px; }
.backbone-note { display: flex; justify-content: space-between; align-items: center; gap: 24px; font-size: 14px; color: var(--fg-muted); }
.backbone-note strong { color: var(--fg); font-weight: 600; }
.sim-badge { display: inline-flex; align-items: center; gap: 10px; padding: 8px 14px; border-radius: 8px; border: 1px dashed rgba(76, 141, 246, 0.6); color: var(--playing); }
.domain-title { font-size: 16px; font-weight: 500; }
.domain-text { font-size: 14px; line-height: 1.55; color: var(--fg-muted); }

/* ---------- modules ---------- */
.modules { display: grid; grid-template-columns: 500px minmax(0, 1fr); gap: 80px; }
.tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; align-content: start; list-style: none; margin: 0; padding: 0; }
.tile { height: 104px; padding: 20px; border-radius: var(--r-2); background: var(--ink-2); border: 1px solid var(--line); display: flex; flex-direction: column; justify-content: space-between; }
.tile b { font-size: 16px; font-weight: 600; }
.tile small { font-size: 13px; color: var(--fg-dim); }
.tile--addon { background: transparent; border-color: rgba(217, 178, 90, 0.6); color: var(--fg); }
.tile--addon:hover { color: var(--fg); border-color: var(--cise); }
.tile--addon small { color: var(--cise); }
.tile--yours { grid-column: span 3; height: 90px; background: transparent; border: 1px dashed var(--line-strong); align-items: center; justify-content: center; font-size: 15px; color: var(--fg-muted); }

/* ---------- CISE ---------- */
.cise { background: var(--cise-ground); border-top: 1px solid rgba(217, 178, 90, 0.4); padding: 120px 0 110px; }
.cise-head { display: grid; grid-template-columns: minmax(0, 1fr) 480px; gap: 80px; align-items: end; }
.addon-badge { display: inline-flex; align-self: flex-start; align-items: center; height: 30px; padding: 0 12px; border-radius: var(--r-1); border: 1px solid rgba(217, 178, 90, 0.6); color: var(--cise); font-size: 13px; font-weight: 600; }
.compliance { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; list-style: none; margin: 0; padding: 0; }
.compliance__label { font-size: 15px; font-weight: 600; margin-right: 8px; }
.compliance li { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 16px; border-radius: 20px; background: rgba(217, 178, 90, 0.12); color: var(--cise-soft); font-size: 14px; font-weight: 500; }
.cise-foot { display: flex; justify-content: space-between; align-items: flex-end; gap: 60px; }
.disclaimer { font-size: 12.5px; line-height: 1.65; color: var(--fg-dim); max-width: 900px; }

/* ---------- AI-first ---------- */
/* What a model inferred is dotted and neutral grey: the product has not chosen the inferred hue. */
.section--ruled { border-top: 1px solid var(--line); }
.br-wide { display: inline; }   /* a line break for wide screens only; phones let the text flow */
.card--raised { background: var(--ink-1); padding: 40px; gap: 28px; }
.screen--mock { height: auto; min-height: 292px; margin: 0; justify-content: center; gap: 18px; }
.subhead { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.subhead__note { font-size: 14px; color: var(--fg-dim); }
.cells--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.facts__scene { width: 100%; height: auto; }
.facts { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; font-size: 13px; }
.facts li { display: grid; grid-template-columns: 36px 76px minmax(0, 1fr); gap: 12px; align-items: center; color: var(--fg-muted); }
.facts svg { width: 36px; height: 10px; }
.facts b { font-weight: 600; color: var(--fg); }

.proposal { display: flex; flex-direction: column; gap: 12px; padding: 18px; border-radius: 12px; background: var(--ink-1); border: 1px solid var(--line); }
.proposal__tag { display: inline-flex; align-items: center; gap: 8px; color: var(--fg); }
.proposal__title { font-size: 15px; font-weight: 600; }
.keys { display: flex; gap: 8px; flex-wrap: wrap; font-size: 12.5px; margin-top: 2px; }
.keys span { display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 12px 0 6px; border-radius: var(--r-1); background: var(--ink-3); }
.keys kbd { min-width: 20px; height: 20px; padding: 0 5px; display: inline-flex; align-items: center; justify-content: center; border-radius: 4px; border: 1px solid var(--line-strong); font: inherit; font-size: 12px; color: var(--fg-muted); }
.keys .keys__on { background: var(--accent); color: var(--ink-0); font-weight: 600; }
.keys .keys__on kbd { border-color: rgba(5, 8, 12, 0.4); color: var(--ink-0); }

.limits { display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 80px; align-items: start; }
.limits__list { list-style: none; margin: 0; padding: 0; font-size: 16px; line-height: 1.55; }
.limits__list li { padding: 18px 0; border-top: 1px solid var(--line-strong); }
.limits__list li:last-child { border-bottom: 1px solid var(--line-strong); }

.waves { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-3); overflow: hidden; }
.waves li { background: var(--ink-1); padding: 28px 32px; display: flex; flex-direction: column; gap: 8px; }
.waves b { font-size: 17px; font-weight: 600; }
.waves span { font-size: 14.5px; line-height: 1.55; color: var(--fg-muted); }

/* ---------- CTA + footer ---------- */
.cta { position: relative; overflow: hidden; margin: 0 auto; max-width: 1280px; min-height: 440px; border-radius: 20px; background: var(--ink-2); border: 1px solid var(--line); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 26px; text-align: center; padding: 64px 24px; }
.cta__mark { position: absolute; left: 50%; top: 165px; width: 550px; height: 550px; margin-left: -275px; color: var(--accent); opacity: 0.06; pointer-events: none; }
.cta > :not(.cta__mark) { position: relative; }
.cta__title { font-size: 56px; max-width: 820px; }
.cta__lead { font-size: 18px; line-height: 1.6; color: var(--fg-muted); max-width: 620px; }
.cta__ctas { display: flex; gap: 14px; }
.cta-wrap { padding: 0 var(--gutter); }

.footer { padding: 80px 0 60px; font-size: 14px; color: var(--fg-dim); }
.footer__top { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; }
.footer__brand { display: flex; flex-direction: column; gap: 14px; }
.footer__nav { display: flex; gap: 32px; flex-wrap: wrap; }
.footer__nav a { color: var(--fg-muted); }
.footer__nav a:hover { color: var(--fg); }
.footer__bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); }
.footer__bottom span { display: flex; align-items: center; gap: 10px; }

/* ================= ≤ 1100 px: stacked hero, fewer columns ================= */
@media (max-width: 1100px) {
  :root { --gutter: 40px; }
  .hero { height: auto; display: flex; flex-direction: column; }
  .hero > .wrap { width: 100%; }
  .hero__after-inner { margin-top: 28px; }
  .hero__copy { width: auto; max-width: 640px; padding-top: 72px; }
  .hero__visual { position: relative; right: auto; top: auto; width: auto; height: 520px; margin-top: 24px; overflow: hidden; }
  .stage { width: 780px; height: 780px; left: calc(50% - 373px); top: -170px; }
  .entity-card { left: auto; right: var(--gutter); top: auto; bottom: 24px; }
  .insight-chip { display: none; }
  .ribbon-wrap { position: static; padding-top: 8px; padding-bottom: 56px; }

  .sources__inner { flex-direction: column; align-items: flex-start; gap: 16px; padding-top: 28px; padding-bottom: 28px; }
  .sources__main { padding: 0; }
  .sources__label { width: auto; }
  .sources__list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px 16px; width: 100%; font-size: 16px; }

  .h2, .h2--lg { font-size: 44px; }
  .h2--md, .cta__title { font-size: 42px; }
  .head-split, .ai-head, .cise-head { display: flex; flex-direction: column; align-items: flex-start; gap: 20px; }
  .head-split > p { max-width: 640px; }
  .ai-body, .operate, .modules { grid-template-columns: minmax(0, 1fr); }
  .operate .ring { max-width: 560px; }
  .feed { max-width: 640px; }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
  .grid-5 { grid-template-columns: minmax(0, 1fr); gap: 12px; border-left: 2px solid var(--accent); padding-left: 20px; }
  .backbone { display: none; }
  .backbone-note { flex-direction: column; align-items: flex-start; margin-top: 16px; }
  .cise-foot { flex-direction: column; align-items: stretch; gap: 28px; }
  .cise-foot .btn { align-self: flex-start; }

  .cells--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .limits { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .sources__main { width: 100%; }
}

/* ================= ≤ 960 px: collapsed navigation ================= */
@media (max-width: 1100px) {
  .brand__by { display: none; }
  .nav__links { gap: 22px; }
}
@media (max-width: 960px) {
  .nav__inner { height: 64px; }
  .brand__name { font-size: 17px; }
  .brand svg { width: 26px; height: 26px; }
  .nav__toggle { display: inline-flex; }
  .nav__demo-sm { display: inline-flex; height: 40px; padding: 0 14px; font-size: 14px; border-radius: 8px; }
  .nav__right { display: flex; align-items: center; gap: 4px; }
  .nav__links { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; padding: 8px var(--gutter) 20px; background: var(--ink-0); box-shadow: 0 24px 40px rgba(0, 0, 0, 0.6); border-bottom: 1px solid var(--line); }
  .nav__links a:not(.btn) { min-height: 48px; display: flex; align-items: center; font-size: 17px; border-bottom: 1px solid var(--line); }
  .nav__links .btn { margin-top: 16px; height: 50px; }
  .nav.is-open .nav__links { display: flex; }
}

/* ================= ≤ 720 px: phone ================= */
@media (max-width: 720px) {
  :root { --gutter: 20px; }

  .hero__copy { padding-top: 44px; gap: 20px; }
  .status { font-size: 13px; }
  .hero__title { font-size: 46px; line-height: 1.02; }
  .hero__lead { font-size: 17px; }
  .hero__after { order: 4; }
  .hero__after-inner { margin-top: 0; padding: 28px 0 44px; gap: 20px; }
  .hero__ctas { flex-direction: column; gap: 10px; }
  .hero__ctas .btn { width: 100%; height: 50px; }
  .hero__visual { height: 470px; margin-top: 20px; }
  .stage { width: 700px; height: 700px; left: calc(50% - 335px); top: -150px; }
  .entity-card { left: 16px; right: 16px; width: auto; bottom: 16px; }
  .entity-card .actions { display: none; }
  .ribbon-wrap { order: 3; padding-bottom: 0; }
  .hero__visual { order: 2; }
  .ribbon { gap: 12px; font-size: 12px; }
  .ribbon .ribbon__from { display: none; }
  .chips { font-size: 13px; gap: 8px; margin-top: 0; }

  .sources__list { grid-template-columns: repeat(2, minmax(0, 1fr)); font-size: 15px; }
  .sources__label { font-size: 13px; }

  .section, .section--tight { padding: 72px 0; }
  .cise { padding: 72px 0; }
  .gap-64, .gap-56, .gap-52 { gap: 28px; }
  .eyebrow { font-size: 13px; }
  .h2, .h2--lg { font-size: 34px; }
  .h2--md, .cta__title { font-size: 32px; }
  .lead { font-size: 16px; }

  .cells { grid-template-columns: minmax(0, 1fr); }
  .cells > div { padding: 22px; }
  .cells h3 { font-size: 17px; }
  .feed { padding: 16px; }
  .ask__field { font-size: 13.5px; }

  .grid-2, .grid-3 { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .grid-4 { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .card { padding: 22px; }
  .card--deep { padding: 20px; gap: 18px; }
  .screen { height: 130px; padding: 16px; }
  .screen__span { display: none; }
  .bands { height: 120px; padding: 0 8px; }
  .bands li { font-size: 12px; gap: 14px; }
  .bands i { width: 14px; height: 14px; }
  .big-h3 { font-size: 20px; }
  .big-p { font-size: 15px; }

  .ring__hint { display: none; }
  .cap { font-size: 12px; padding: 6px 10px; }
  .ring__bar { left: 12px; right: 12px; bottom: 12px; padding: 12px 14px; }
  .ring__bar b { font-size: 13.5px; }
  .ring__bar small { font-size: 12px; }
  .ladder li { grid-template-columns: 40px minmax(0, 1fr); gap: 14px; }
  .ladder__n { width: 32px; height: 32px; font-size: 14px; }
  .ladder__body { padding-bottom: 24px; }
  .ladder__body h3 { font-size: 18px; }
  .ladder__body p { font-size: 15px; }

  .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .tile { height: auto; gap: 4px; padding: 14px 16px; }
  .tile--yours { grid-column: span 2; height: 64px; }

  .compliance { gap: 8px; }
  .compliance__label { width: 100%; font-size: 14px; }
  .compliance li { height: 34px; padding: 0 12px; font-size: 13px; }
  .cise-foot .btn { align-self: stretch; }
  .disclaimer { font-size: 12px; }

  .br-wide { display: none; }
  .cells--3 { grid-template-columns: minmax(0, 1fr); }
  .card--raised { padding: 20px; gap: 18px; }
  .screen--mock { height: auto; min-height: 0; padding: 16px; }
  .facts { font-size: 12.5px; }
  .facts li { grid-template-columns: 30px 64px minmax(0, 1fr); gap: 10px; }
  .facts svg { width: 30px; }
  .proposal { padding: 14px; }
  .keys span { height: 30px; padding: 0 10px 0 5px; }
  .subhead__note { width: 100%; font-size: 13.5px; }
  .limits__list { font-size: 15px; }
  .limits__list li { padding: 14px 0; }
  .waves { grid-template-columns: minmax(0, 1fr); }
  .waves li { padding: 20px 22px; }
  .sources__also { font-size: 13px; }

  .cta-wrap { padding: 0 16px; }
  .cta { min-height: 0; padding: 56px 20px 48px; gap: 18px; }
  .cta__mark { width: 320px; height: 320px; margin-left: -160px; top: 190px; }
  .cta__lead { font-size: 15.5px; }
  .cta__ctas { flex-direction: column; align-self: stretch; gap: 10px; }
  .cta__ctas .btn { width: 100%; height: 50px; }

  .footer { padding: 56px 0 40px; }
  .footer__top { flex-direction: column; gap: 28px; }
  .footer__nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; }
  .footer__nav a { min-height: 44px; display: flex; align-items: center; }
  .footer__bottom { flex-direction: column; gap: 8px; font-size: 12.5px; }
}