/*
 * oalfawzan.sa ecosystem layer
 * Keeps the AI site's educational visuals while sharing the portfolio's
 * liquid-glass shell, typography, spacing, controls, and responsive rhythm.
 */
:root {
  color-scheme: dark;
  --site-font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Inter, Helvetica, Arial, sans-serif;
  --site-bg: #010204;
  --site-bg-top: #1b2942;
  --site-accent: #007aff;
  --site-text: #fff;
  --site-text-muted: rgba(255,255,255,.62);
  --site-text-faint: rgba(255,255,255,.45);
  --site-glass-fill: rgba(255,255,255,.035);
  --site-glass-fill-strong: rgba(255,255,255,.065);
  --site-glass-border: rgba(255,255,255,.12);
  --site-glass-highlight: rgba(255,255,255,.18);
  --site-glass-shadow: rgba(0,0,0,.26);
  --site-glass-blur: 20px;
  --site-glass-saturation: 170%;
  --site-radius-card: 24px;
  --site-radius-nav: 30px;
  --site-radius-control: 999px;
  --site-page-pad: 16px;
  --site-content: 900px;
  --site-section-gap: 64px;
  --site-border-strong: rgba(255,255,255,.22);

  /* Preserve the AI narrative's semantic accent colors. */
  --cyan: #65e8ff;
  --yellow: #ffd76b;
  --green: #7ee787;
  --blue: #6da8ff;
  --pink: #f29bd5;
  --bg: var(--site-bg);
  --text: var(--site-text);
  --muted: var(--site-text-muted);
  --line: var(--site-glass-border);
  --panel: var(--site-glass-fill);
  --max: var(--site-content);
}

html[data-theme="light"] {
  color-scheme: light;
  --site-bg: #e7eff8;
  --site-bg-top: #e7eff8;
  --site-accent: #0062cc;
  --site-text: #0f172a;
  --site-text-muted: #334155;
  --site-text-faint: #415166;
  --site-glass-fill: rgba(255,255,255,.70);
  --site-glass-fill-strong: rgba(255,255,255,.84);
  --site-glass-border: rgba(71,85,105,.16);
  --site-glass-highlight: rgba(255,255,255,.96);
  --site-glass-shadow: rgba(38,55,78,.13);
  --site-glass-blur: 22px;
  --site-glass-saturation: 135%;
  --site-border-strong: rgba(51,65,85,.30);
  --bg: var(--site-bg);
  --text: var(--site-text);
  --muted: var(--site-text-muted);
  --line: var(--site-glass-border);
  --panel: var(--site-glass-fill);
}

*, *::before, *::after { box-sizing: border-box; }
/* Keep all scrollable areas usable without visible scrollbar tracks. */
* { scrollbar-width: none; }
*::-webkit-scrollbar { display: none; }
html { scroll-behavior: smooth; background: var(--site-bg); overflow-x: clip; }
body {
  min-width: 0;
  min-height: 100dvh;
  margin: 0;
  overflow-x: clip;
  color: var(--site-text);
  font-family: var(--site-font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  background:
    linear-gradient(rgba(13,22,45,.84), rgba(1,2,4,.95)),
    url("https://oalfawzan.sa/image-1600.webp") center / cover fixed;
}
html[data-theme="light"] body {
  position: relative;
  isolation: isolate;
  background: var(--site-bg);
}
html[data-theme="light"] body::before {
  content: "";
  position: fixed;
  inset: -34px;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(rgba(231,239,248,.82), rgba(231,239,248,.86)),
    url("https://oalfawzan.sa/image-1600.webp") center / cover no-repeat;
  filter: blur(22px) saturate(.72) brightness(1.06);
  transform: scale(1.08);
}
.noise { display: none !important; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
img, svg { max-width: 100%; }

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 10000;
  padding: 10px 14px;
  border-radius: 10px;
  color: #fff;
  background: var(--site-accent);
  text-decoration: none;
  font-weight: 600;
  transform: translateY(-160%);
}
.skip-link:focus-visible { transform: translateY(0); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--site-accent);
  outline-offset: 3px;
}

/* Shared floating navigation shell */
.site-header {
  position: fixed !important;
  z-index: 1000;
  top: 16px !important;
  left: 50% !important;
  right: auto !important;
  width: min(var(--site-content), calc(100% - 32px)) !important;
  min-height: 56px;
  transform: translateX(-50%);
  display: grid !important;
  grid-template-columns: minmax(0,1fr) auto auto !important;
  align-items: center !important;
  gap: 8px 10px !important;
  padding: 10px 14px !important;
  border: 1px solid var(--site-glass-border) !important;
  border-radius: var(--site-radius-nav) !important;
  background:
    linear-gradient(145deg, rgba(255,255,255,.055), rgba(255,255,255,.008) 58%),
    var(--site-glass-fill) !important;
  box-shadow:
    inset 0 1px 0 var(--site-glass-highlight),
    0 8px 24px var(--site-glass-shadow) !important;
  -webkit-backdrop-filter: blur(var(--site-glass-blur)) saturate(var(--site-glass-saturation)) !important;
  backdrop-filter: blur(var(--site-glass-blur)) saturate(var(--site-glass-saturation)) !important;
}
html[data-theme="light"] .site-header {
  background:
    linear-gradient(145deg, rgba(255,255,255,.93), rgba(255,255,255,.62) 64%),
    rgba(255,255,255,.72) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.98), 0 12px 28px rgba(38,55,78,.12) !important;
}
.brand {
  min-width: 0;
  display: flex !important;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
  white-space: nowrap;
}
.brand-mark {
  color: var(--site-text) !important;
  font-family: var(--site-font) !important;
  font-size: 1.02rem !important;
  font-weight: 600 !important;
  line-height: 1.2 !important;
  letter-spacing: -.02em !important;
}
.brand-sub {
  color: var(--site-text-faint) !important;
  font-size: .78rem !important;
  font-weight: 500 !important;
  letter-spacing: .01em !important;
}
.top-nav {
  display: flex !important;
  align-items: center;
  gap: 7px !important;
  padding: 0 !important;
  overflow-x: auto;
  background: transparent !important;
  border: 0 !important;
  border-radius: 0 !important;
  white-space: nowrap;
  scrollbar-width: none;
}
.top-nav::-webkit-scrollbar { display: none; }
.top-nav a {
  min-height: 34px;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  padding: 7px 13px !important;
  border: 1px solid var(--site-glass-border) !important;
  border-radius: var(--site-radius-control) !important;
  color: var(--site-text) !important;
  font-size: .80rem !important;
  font-weight: 500 !important;
  line-height: 1 !important;
  text-decoration: none;
  background: rgba(255,255,255,.035) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.06) !important;
  -webkit-backdrop-filter: blur(12px) saturate(145%) !important;
  backdrop-filter: blur(12px) saturate(145%) !important;
}
.top-nav a.active {
  color: #fff !important;
  background: rgba(0,122,255,.90) !important;
  border-color: rgba(255,255,255,.22) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.24), 0 3px 10px rgba(0,122,255,.18) !important;
}
html[data-theme="light"] .top-nav a:not(.active) {
  color: var(--site-text) !important;
  background: rgba(255,255,255,.64) !important;
  border-color: rgba(71,85,105,.18) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.94), 0 3px 10px rgba(38,55,78,.06) !important;
}
.theme-toggle {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  color: var(--site-text);
  background: transparent;
  cursor: pointer;
}
.theme-toggle svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.theme-icon-sun { display: none; }
html[data-theme="light"] .theme-icon-sun { display: block; }
html[data-theme="light"] .theme-icon-moon { display: none; }

/* Typography and common rhythm */
main { display: block; }
.hero, .journey, .research-bridge, .capability-section, .labs-hub, .same-model, .interop-section, .sources-section {
  width: min(var(--site-content), calc(100% - (var(--site-page-pad) * 2))) !important;
  max-width: var(--site-content) !important;
  margin-left: auto !important;
  margin-right: auto !important;
}
.eyebrow, .stage-kicker, .example-tag, .lab-tag, .source-grid b, .interop-node small, .system-card > span {
  color: var(--site-text-faint) !important;
  font-family: var(--site-font) !important;
  font-size: .78rem !important;
  font-weight: 500 !important;
  line-height: 1.3 !important;
  letter-spacing: .01em !important;
}
h1, h2, h3, h4, .brand-mark { font-family: var(--site-font) !important; }
p, li, .hero-lede, .hero-thesis { font-family: var(--site-font) !important; }
.hero {
  min-height: auto !important;
  display: block !important;
  padding: 168px 0 86px !important;
  text-align: center;
}
.hero-grid { max-width: 760px; margin: 0 auto; display: block !important; }
.hero .eyebrow { margin-bottom: 18px; }
.hero h1 {
  margin: 0 auto 24px !important;
  max-width: 800px;
  color: var(--site-text) !important;
  font-size: clamp(3.1rem, 7vw, 4.75rem) !important;
  font-weight: 650 !important;
  line-height: .99 !important;
  letter-spacing: -.055em !important;
}
.hero h1 span { color: var(--site-text) !important; }
.hero-lede {
  max-width: 690px !important;
  margin: 0 auto 18px !important;
  color: var(--site-text-muted) !important;
  font-size: 1rem !important;
  line-height: 1.65 !important;
}
.hero-thesis {
  max-width: 650px !important;
  margin: 0 auto 28px !important;
  padding: 0 !important;
  color: var(--site-text-faint) !important;
  font-size: .91rem !important;
  line-height: 1.6 !important;
  border: 0 !important;
}
.hero-actions { display: flex; justify-content: center; align-items: center; gap: 9px; flex-wrap: wrap; }
.primary-btn, .text-link, .lab-btn, .pattern-toggle button {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--site-radius-control) !important;
  padding: 9px 15px !important;
  font-family: var(--site-font) !important;
  font-size: .82rem !important;
  font-weight: 500 !important;
  line-height: 1 !important;
  text-decoration: none !important;
  cursor: pointer;
}
.primary-btn, .lab-btn.primary, .pattern-toggle button.is-on {
  color: #fff !important;
  background: rgba(0,122,255,.90) !important;
  border: 1px solid rgba(255,255,255,.20) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.22), 0 4px 14px rgba(0,122,255,.18) !important;
}
.text-link, .lab-btn, .pattern-toggle button:not(.is-on) {
  color: var(--site-text) !important;
  background: rgba(255,255,255,.035) !important;
  border: 1px solid var(--site-glass-border) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.06) !important;
}
html[data-theme="light"] .text-link,
html[data-theme="light"] .lab-btn:not(.primary),
html[data-theme="light"] .pattern-toggle button:not(.is-on) {
  background: rgba(255,255,255,.64) !important;
  border-color: rgba(71,85,105,.18) !important;
}

/* Shared liquid-glass material */
.timeline-shell,
.research-bridge,
.pattern-stage,
.capability-grid,
.lab-card,
.same-model,
.system-card,
.interop-diagram,
.interop-node,
.sources-section,
.source-grid a,
.example,
.stage-lab {
  background:
    linear-gradient(145deg, rgba(255,255,255,.045), rgba(255,255,255,.004) 58%),
    var(--site-glass-fill) !important;
  border: 1px solid var(--site-glass-border) !important;
  box-shadow: inset 0 1px 0 var(--site-glass-highlight), 0 8px 26px var(--site-glass-shadow) !important;
  -webkit-backdrop-filter: blur(var(--site-glass-blur)) saturate(var(--site-glass-saturation)) !important;
  backdrop-filter: blur(var(--site-glass-blur)) saturate(var(--site-glass-saturation)) !important;
}
html[data-theme="light"] .timeline-shell,
html[data-theme="light"] .research-bridge,
html[data-theme="light"] .pattern-stage,
html[data-theme="light"] .capability-grid,
html[data-theme="light"] .lab-card,
html[data-theme="light"] .same-model,
html[data-theme="light"] .system-card,
html[data-theme="light"] .interop-diagram,
html[data-theme="light"] .interop-node,
html[data-theme="light"] .sources-section,
html[data-theme="light"] .source-grid a,
html[data-theme="light"] .example,
html[data-theme="light"] .stage-lab {
  background: linear-gradient(145deg, rgba(255,255,255,.88), rgba(255,255,255,.54) 62%), var(--site-glass-fill) !important;
  box-shadow: inset 0 1px 0 var(--site-glass-highlight), inset 0 -1px 0 rgba(51,65,85,.06), 0 12px 30px var(--site-glass-shadow) !important;
}

/* Timeline */
.journey { margin-bottom: var(--site-section-gap) !important; }
.timeline-shell {
  position: sticky !important;
  top: 86px !important;
  z-index: 50;
  width: 100% !important;
  margin: 0 auto 46px !important;
  padding: 14px 20px 12px !important;
  border-radius: 24px !important;
  overflow: hidden;
}
.timeline-track { position: relative; display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); align-items: start; margin: 0 auto; }
.timeline-track::before { content: ""; position: absolute; top: 28px; left: 10%; right: 10%; height: 1px; transform: translateY(-50%); background: var(--site-glass-border); }
.timeline-progress { position: absolute; top: 28px; left: 10%; max-width: 80%; height: 2px !important; transform: translateY(-50%); background: var(--site-accent) !important; border-radius: 99px; transition: width .35s ease; }
.timeline-point {
  position: relative; z-index: 2; min-width: 0; padding: 0 4px; gap: 8px; border: 0; color: var(--site-text-faint); background: transparent; cursor: pointer;
}
.timeline-point span, .timeline-point b { display: block; font-family: var(--site-font) !important; }
.timeline-point span { font-size: .68rem !important; line-height: 16px; font-weight: 600; letter-spacing: .08em; }
.timeline-point b { margin-top: 5px; font-size: .72rem !important; font-weight: 500 !important; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.timeline-point i { width: 8px; height: 8px; display: block; margin: 0 auto; border: 2px solid var(--site-text-faint); border-radius: 50%; background: var(--site-bg); }
.timeline-point.is-active { color: var(--site-text); }
.timeline-point.is-active i { border-color: var(--site-accent); background: var(--site-accent); box-shadow: 0 0 0 4px rgba(0,122,255,.12); }
.timeline-note { margin: 10px 0 0 !important; text-align: center; color: var(--site-text-faint) !important; font-size: .72rem !important; }
.mobile-stage-readout { display: none; }

/* Narrative stages */
.stage {
  --stage-accent: var(--site-accent);
  min-height: auto !important;
  width: 100% !important;
  max-width: var(--site-content) !important;
  display: grid !important;
  grid-template-columns: minmax(0,.88fr) minmax(0,1.12fr) !important;
  gap: 28px 30px !important;
  align-items: center !important;
  padding: 60px 0 !important;
  margin: 0 auto !important;
  border: 0 !important;
}
.stage[data-accent="cyan"] { --stage-accent: var(--cyan); }
.stage[data-accent="yellow"] { --stage-accent: var(--yellow); }
.stage[data-accent="green"] { --stage-accent: var(--green); }
.stage[data-accent="blue"] { --stage-accent: var(--blue); }
.stage[data-accent="pink"] { --stage-accent: var(--pink); }
.stage + .stage, .research-bridge + .stage { border-top: 1px solid rgba(255,255,255,.06) !important; }
html[data-theme="light"] .stage + .stage, html[data-theme="light"] .research-bridge + .stage { border-top-color: rgba(51,65,85,.12) !important; }
.stage-copy { min-width: 0; }
.stage-kicker { margin-bottom: 12px; color: var(--stage-accent) !important; }
.stage h2, .section-intro h2, .bridge-head h2, .same-model-head h2, .sources-section > div:first-child h2 {
  color: var(--site-text) !important;
  font-size: clamp(2.1rem, 5vw, 3.25rem) !important;
  font-weight: 650 !important;
  line-height: 1.04 !important;
  letter-spacing: -.045em !important;
}
.stage h2 { margin: 0 0 18px !important; }
.stage h2 em { color: var(--stage-accent) !important; font-style: normal; }
.stage-copy > p, .section-intro p, .bridge-head p, .same-model-head p, .sources-section > div:first-child p {
  color: var(--site-text-muted) !important;
  font-size: .96rem !important;
  line-height: 1.65 !important;
}
.stage-idea { margin-top: 22px !important; padding-top: 17px !important; border-top: 1px solid var(--site-glass-border) !important; }
.stage-idea span { display: block; margin-bottom: 4px; color: var(--site-text-faint) !important; font-size: .78rem; font-weight: 500; letter-spacing: .01em; }
.stage-idea strong { color: var(--site-text) !important; font-size: .94rem; font-weight: 600; }

/* Stage blackboard → Liquid Glass graphic canvas.
   The educational diagram is now a translucent glass panel that
   lets the page background show through, matching the site shell. */
.blackboard {
  position: relative;
  min-width: 0;
  overflow: hidden;
  color: var(--graphic-ink) !important;
  border: 1px solid var(--site-glass-border) !important;
  border-radius: var(--site-radius-card) !important;
  background:
    linear-gradient(150deg, var(--graphic-fill-1), var(--graphic-fill-2) 58%) !important;
  box-shadow:
    inset 0 1px 0 var(--site-glass-highlight),
    0 1px 24px rgba(99,231,255,.07),
    0 8px 26px var(--site-glass-shadow) !important;
  -webkit-backdrop-filter: blur(var(--graphic-blur)) saturate(var(--graphic-sat)) !important;
  backdrop-filter: blur(var(--graphic-blur)) saturate(var(--graphic-sat)) !important;
}
/* Soft top reflection */
.blackboard::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background:
    linear-gradient(to bottom,
      rgba(255,255,255,.10),
      rgba(255,255,255,.025) 20%,
      transparent 44%);
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 46%);
  mask-image: linear-gradient(to bottom, #000, transparent 46%);
}
html[data-theme="light"] .blackboard::before {
  background:
    linear-gradient(to bottom,
      rgba(255,255,255,.68),
      rgba(255,255,255,.16) 24%,
      transparent 48%);
}

.chalk-title { padding: 18px 20px 0 !important; font-family: Caveat, "Comic Sans MS", cursive !important; font-size: clamp(1.2rem,2.4vw,1.6rem) !important; font-weight: 600 !important; }
.board-svg { display: block; width: 100%; height: auto; }

/* Diagram elements are now glass nodes on the glass canvas */
.chalk-box, .chalk-circle, .harness-outer {
  fill: rgba(255,255,255,.075);
  stroke: rgba(255,255,255,.45);
  stroke-width: 1.75;
  vector-effect: non-scaling-stroke;
}
html[data-theme="light"] .chalk-box,
html[data-theme="light"] .chalk-circle,
html[data-theme="light"] .harness-outer {
  fill: rgba(255,255,255,.60);
  stroke: rgba(71,85,105,.45);
}
/* Subtle inner highlight stroke on the glass nodes */
.chalk-box, .chalk-circle, .harness-outer {
  filter: drop-shadow(0 1px 0 rgba(255,255,255,.08));
}
.chalk-text, .chalk-note { fill: var(--graphic-ink); font-family: Caveat, "Comic Sans MS", cursive; }
html[data-theme="light"] .chalk-text,
html[data-theme="light"] .chalk-note { fill: #141b26; }
.chalk-text { font-size: 28px; }
.chalk-note { font-size: 24px; fill: var(--graphic-ink-muted); }
html[data-theme="light"] .chalk-note { fill: #3b4658; }
.cyan-stroke { stroke: var(--cyan) !important; } .yellow-stroke { stroke: var(--yellow) !important; } .green-stroke { stroke: var(--green) !important; } .blue-stroke { stroke: var(--blue) !important; } .pink-stroke { stroke: var(--pink) !important; }
.cyan-text { color: var(--cyan) !important; } .yellow-text { color: var(--yellow) !important; } .green-text { color: var(--green) !important; } .blue-text { color: var(--blue) !important; } .pink-text { color: var(--pink) !important; }
/* Mini IDE → layered glass panels on the glass canvas */
.mini-ide {
  position: relative;
  display: grid;
  grid-template-columns: .75fr 1.25fr;
  gap: 8px;
  margin: 18px;
  border: 1px solid var(--site-glass-border);
  border-radius: 16px;
  padding: 8px;
  background:
    linear-gradient(150deg, rgba(255,255,255,.055), rgba(255,255,255,.012) 60%);
  box-shadow: inset 0 1px 0 var(--site-glass-highlight);
}
html[data-theme="light"] .mini-ide {
  background: linear-gradient(150deg, rgba(255,255,255,.75), rgba(255,255,255,.38) 60%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.95);
}
.ide-tree, .ide-terminal, .ide-diff {
  margin: 0;
  padding: 14px;
  color: var(--graphic-ink);
  background:
    linear-gradient(160deg, var(--graphic-fill-1), var(--graphic-fill-2) 72%);
  border: 1px solid var(--site-glass-border);
  border-radius: 11px;
  box-shadow: inset 0 1px 0 var(--site-glass-highlight);
  font: 12px/1.65 ui-monospace,SFMono-Regular,Menlo,monospace;
  white-space: pre-wrap;
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  backdrop-filter: blur(12px) saturate(140%);
}
html[data-theme="light"] .ide-tree,
html[data-theme="light"] .ide-terminal,
html[data-theme="light"] .ide-diff {
  color: #141b26;
  background: linear-gradient(160deg, rgba(255,255,255,.88), rgba(255,255,255,.48) 72%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.95);
}
.ide-tree { grid-row: 1 / 3; color: var(--graphic-ink-muted); }
html[data-theme="light"] .ide-tree { color: #3b4658; }
.ide-diff { color: #9fe3b0; }
html[data-theme="light"] .ide-diff { color: #1d7a3f; }

.example {
  grid-column: 1 / -1 !important;
  width: 100%;
  display: grid !important;
  grid-template-columns: minmax(0,1fr) auto !important;
  gap: 7px 20px !important;
  padding: 20px 22px !important;
  border-radius: 20px !important;
}
.example-tag { grid-column: 1 / -1; color: var(--stage-accent) !important; }
.example h3 { margin: 0 !important; color: var(--site-text) !important; font-size: 1rem !important; font-weight: 600 !important; line-height: 1.4 !important; }
.example p { margin: 4px 0 0 !important; color: var(--site-text-muted) !important; font-size: .88rem !important; }
.example-result { grid-column: 2; grid-row: 2 / 4; align-self: center; color: var(--site-text-faint) !important; font-size: .78rem !important; }
.example-result strong { color: var(--site-text) !important; }

/* Bridge and supporting sections */
.research-bridge, .capability-section, .labs-hub, .same-model, .interop-section, .sources-section { margin-top: 64px !important; margin-bottom: 64px !important; }
.research-bridge, .same-model, .sources-section { padding: 26px !important; border-radius: var(--site-radius-card) !important; }
.bridge-head, .same-model-head { display: flex !important; justify-content: space-between; align-items: end; gap: 24px; }
.bridge-head > div, .same-model-head > div { max-width: 620px; }
.bridge-head h2, .same-model-head h2, .section-intro h2, .sources-section > div:first-child h2 { margin: 7px 0 12px !important; font-size: clamp(1.9rem,4.5vw,2.75rem) !important; }
.bridge-head p, .same-model-head p, .section-intro p, .sources-section > div:first-child p { margin: 0; }
.pattern-toggle { flex: 0 0 auto; display: flex; gap: 6px; }
.pattern-stage { margin-top: 22px !important; padding: 22px !important; border-radius: 20px !important; }
.pattern-copy h3 { margin: 0 0 6px !important; color: var(--site-text) !important; font-size: 1rem !important; font-weight: 600 !important; }
.pattern-copy p { margin: 0; color: var(--site-text-muted) !important; font-size: .86rem !important; }
.pattern-flow { display: flex; gap: 7px; align-items: center; flex-wrap: wrap; margin-top: 18px; }
.pattern-flow span {
  padding: 7px 10px;
  border: 1px solid var(--site-glass-border);
  border-radius: 12px;
  color: var(--graphic-ink);
  font-size: .76rem;
  background: linear-gradient(150deg, var(--graphic-fill-1), var(--graphic-fill-2) 62%);
  box-shadow: inset 0 1px 0 var(--site-glass-highlight), 0 3px 10px var(--site-glass-shadow);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  backdrop-filter: blur(10px) saturate(140%);
}
html[data-theme="light"] .pattern-flow span {
  color: #141b26;
  background: linear-gradient(150deg, rgba(255,255,255,.9), rgba(255,255,255,.52) 62%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.95), 0 3px 10px rgba(38,55,78,.06);
}
.pattern-flow .decision { color: var(--site-accent); border-color: color-mix(in srgb,var(--site-accent) 35%,transparent); }
.pattern-flow i { color: var(--site-text-faint); font-style: normal; }

.section-intro { display: block !important; margin-bottom: 22px !important; }
.section-intro > div { max-width: 650px; }
.capability-grid { overflow-x: auto; border-radius: var(--site-radius-card) !important; }
.cap-row {
  min-width: 720px; display: grid !important;
  grid-template-columns: minmax(180px,1.5fr) repeat(5,minmax(70px,.72fr));
  align-items: center; padding: 12px 18px !important;
  border-bottom: 1px solid var(--site-glass-border) !important;
  color: var(--site-text-muted) !important;
  transition: background .2s ease;
}
.cap-row:hover { background: rgba(255,255,255,.02); }
html[data-theme="light"] .cap-row:hover { background: rgba(255,255,255,.25); }
.cap-row:last-child { border-bottom: 0 !important; }
.cap-row > * { text-align: center; }
.cap-row > :first-child { text-align: left; }
.cap-row b, .cap-row span { font-size: .78rem !important; font-style: normal; }
.cap-row i {
  font-style: normal;
  color: var(--site-text-faint);
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  line-height: 1;
  justify-self: center;
  margin: 0 auto;
  border-radius: 50%;
  background: rgba(255,255,255,.035);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.05);
}
html[data-theme="light"] .cap-row i {
  background: rgba(255,255,255,.4);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.7);
}
.cap-row i.on {
  color: var(--stage-accent, var(--cyan)) !important;
  background: color-mix(in srgb, var(--stage-accent, var(--cyan)) 16%, transparent);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.10), 0 0 14px color-mix(in srgb, var(--stage-accent, var(--cyan)) 14%, transparent);
}
.cap-row i:nth-child(2) { --stage-accent: var(--cyan); }
.cap-row i:nth-child(3) { --stage-accent: var(--yellow); }
.cap-row i:nth-child(4) { --stage-accent: var(--green); }
.cap-row i:nth-child(5) { --stage-accent: var(--blue); }
.cap-row i:nth-child(6) { --stage-accent: var(--pink); }
.cap-head { color: var(--site-text) !important; font-weight: 600; background: rgba(255,255,255,.025); }
html[data-theme="light"] .cap-head { background: rgba(255,255,255,.28); }

.lab-card-grid { display: grid !important; grid-template-columns: repeat(5,minmax(0,1fr)) !important; gap: 12px !important; }
.lab-card { min-width: 0; min-height: 190px; display: flex !important; flex-direction: column; gap: 9px; padding: 19px !important; border-radius: 20px !important; color: var(--site-text) !important; text-decoration: none !important; }
.lab-card > span { color: var(--site-text-faint) !important; font-size: .78rem; font-weight: 500; }
.lab-card > strong { color: var(--site-text) !important; font-size: .94rem !important; line-height: 1.35; }
.lab-card p { margin: 0; color: var(--site-text-muted) !important; font-size: .78rem !important; line-height: 1.55; }
.lab-card b { margin-top: auto; color: var(--site-accent) !important; font-size: .76rem !important; font-weight: 500 !important; }

.system-compare { display: grid !important; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px !important; margin-top: 22px; }
.system-card { padding: 20px !important; border-radius: 20px !important; }
.system-card > span { color: var(--site-text-faint) !important; }
.system-card h3 { margin: 8px 0 15px !important; color: var(--site-text) !important; font-size: 1rem !important; font-weight: 600 !important; }
.system-console, .lab-console {
  width: 100%; min-height: 210px; margin: 0; padding: 14px !important; overflow: auto;
  color: var(--graphic-ink) !important;
  background:
    linear-gradient(160deg, var(--graphic-fill-1), var(--graphic-fill-2) 72%) !important;
  border: 1px solid var(--site-glass-border) !important;
  border-radius: 14px !important;
  box-shadow: inset 0 1px 0 var(--site-glass-highlight), 0 4px 14px var(--site-glass-shadow) !important;
  -webkit-backdrop-filter: blur(12px) saturate(145%) !important;
  backdrop-filter: blur(12px) saturate(145%) !important;
  font: 12px/1.65 ui-monospace,SFMono-Regular,Menlo,monospace !important; white-space: pre-wrap;
}
html[data-theme="light"] .system-console,
html[data-theme="light"] .lab-console {
  color: #141b26 !important;
  background: linear-gradient(160deg, rgba(255,255,255,.9), rgba(255,255,255,.5) 72%) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.95), 0 4px 14px rgba(38,55,78,.08) !important;
}
.same-model-reveal { color: var(--site-text-muted) !important; }

.interop-diagram { display: grid !important; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: center; gap: 10px !important; padding: 20px !important; border-radius: var(--site-radius-card) !important; }
.interop-node {
  min-height: 110px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 18px !important;
  border-radius: 18px !important;
  background:
    linear-gradient(150deg, var(--graphic-fill-1), var(--graphic-fill-2) 60%) !important;
  border: 1px solid var(--site-glass-border) !important;
  box-shadow: inset 0 1px 0 var(--site-glass-highlight), 0 4px 14px var(--site-glass-shadow) !important;
  -webkit-backdrop-filter: blur(12px) saturate(145%) !important;
  backdrop-filter: blur(12px) saturate(145%) !important;
}
html[data-theme="light"] .interop-node {
  background: linear-gradient(150deg, rgba(255,255,255,.9), rgba(255,255,255,.52) 60%) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.95), 0 4px 14px rgba(38,55,78,.07) !important;
}
.interop-node small { color: var(--site-text-faint) !important; }
.interop-node strong { margin-top: 7px; color: var(--site-text) !important; font-size: .86rem; }
.interop-node.agent-node {
  border-color: color-mix(in srgb, var(--green) 45%, var(--site-glass-border)) !important;
  box-shadow: inset 0 1px 0 var(--site-glass-highlight), 0 1px 18px rgba(126,231,135,.10), 0 4px 14px var(--site-glass-shadow) !important;
}
.interop-link { text-align: center; color: var(--site-text-faint); font-size: .72rem; position: relative; }
.interop-link b { display: block; color: var(--site-accent); font-size: .82rem; }
/* Dashed glass connector line behind the MCP/A2A labels */
.interop-link::before {
  content: "";
  position: absolute;
  left: -6px;
  right: -6px;
  top: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--site-border-strong), transparent);
  opacity: .5;
  pointer-events: none;
}
@media (max-width: 900px) {
  .interop-link::before { display: none; }
  .interop-link { padding: 8px 0; }
  .interop-link::after {
    content: "";
    display: block;
    width: 1px;
    height: 26px;
    margin: 6px auto 0;
    background: linear-gradient(to bottom, transparent, var(--site-border-strong), transparent);
    opacity: .6;
  }
}

.sources-section { display: grid !important; grid-template-columns: .72fr 1.28fr; gap: 26px !important; }
.source-grid { display: grid !important; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px !important; }
.source-grid a { display: block; padding: 16px !important; border-radius: 17px !important; text-decoration: none; }
.source-grid a b { display: block; color: var(--site-accent) !important; }
.source-grid a span { display: block; margin-top: 5px; color: var(--site-text-muted) !important; font-size: .80rem !important; line-height: 1.45; }

/* Labs inserted by script.js */
.stage-lab { grid-column: 1 / -1 !important; margin-top: 2px !important; border-radius: var(--site-radius-card) !important; overflow: hidden; }
.lab-head { display: flex; justify-content: space-between; gap: 20px; padding: 20px 22px !important; border-bottom: 1px solid var(--site-glass-border) !important; }
.lab-head h3 { margin: 4px 0 2px !important; color: var(--site-text) !important; font-size: 1.08rem !important; font-weight: 600 !important; }
.lab-head p { margin: 0; color: var(--site-text-muted) !important; font-size: .82rem !important; }
.lab-tag, .lab-score { color: var(--stage-accent) !important; }
.lab-score { font: 700 .72rem/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; }
.lab-grid { display: grid !important; grid-template-columns: .9fr 1.1fr; }
.lab-pane { min-width: 0; padding: 20px 22px !important; }
.lab-pane + .lab-pane { border-left: 1px solid var(--site-glass-border) !important; }
.lab-label { display: block; margin: 0 0 8px; color: var(--site-text-faint) !important; font-size: .78rem !important; font-weight: 500 !important; letter-spacing: .01em; }
.lab-textarea, .lab-select, .agent-control select {
  width: 100%; color: var(--site-text) !important; background: rgba(0,0,0,.16) !important; border: 1px solid var(--site-glass-border) !important; border-radius: 12px !important; padding: 11px !important;
}
html[data-theme="light"] .lab-textarea, html[data-theme="light"] .lab-select, html[data-theme="light"] .agent-control select { background: rgba(255,255,255,.50) !important; }
.lab-textarea { min-height: 90px; resize: vertical; }
.lab-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.checks, .steps { display: grid; }
.checks { gap: 7px; }
.steps { gap: 6px; }
.check, .step, .scenario button { border: 1px solid var(--site-glass-border) !important; border-radius: 11px !important; background: rgba(255,255,255,.025) !important; color: var(--site-text-muted) !important; }
.check { padding: 9px !important; font-size: .78rem !important; }
.check input { accent-color: var(--site-accent); }
.step { padding: 8px 10px !important; font-size: .74rem !important; }
.step.on, .step.done { border-color: color-mix(in srgb,var(--stage-accent) 45%,transparent) !important; }
.step.done { color: var(--stage-accent) !important; }
.scenario { display: grid; grid-template-columns: repeat(3,1fr); gap: 6px; margin-bottom: 12px; }
.scenario button { padding: 9px 7px; cursor: pointer; }
.scenario button.on { color: #fff !important; background: var(--site-accent) !important; border-color: var(--site-accent) !important; }
.meter { height: 6px; overflow: hidden; margin: 10px 0; border-radius: 99px; background: rgba(255,255,255,.08); }
.meter i { display: block; width: 0; height: 100%; background: var(--site-accent); transition: width .4s; }
.ok { color: #7ee787 !important; } .warn { color: #ffd76b !important; } .bad { color: #ff8c8c !important; }

footer {
  width: min(var(--site-content), calc(100% - (var(--site-page-pad) * 2))) !important;
  max-width: var(--site-content) !important;
  display: flex !important;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin: 24px auto 0 !important;
  padding: 34px 0 42px !important;
  border-top: 1px solid var(--site-glass-border) !important;
  color: var(--site-text-muted) !important;
  font-size: .78rem !important;
}
footer div { display: flex; align-items: center; gap: 9px; }
footer strong { color: var(--site-text) !important; font-weight: 600 !important; }
footer a { color: var(--site-text-muted) !important; text-decoration: none; }

@media (hover:hover) and (pointer:fine) {
  .top-nav a:not(.active):hover, .text-link:hover, .lab-btn:not(.primary):hover, .pattern-toggle button:not(.is-on):hover {
    background: var(--site-glass-fill-strong) !important;
    border-color: var(--site-border-strong) !important;
  }
  .theme-toggle:hover { background: var(--site-glass-fill-strong) !important; }
  .lab-card:hover, .source-grid a:hover { transform: translateY(-2px); border-color: var(--site-border-strong) !important; }
  .lab-card, .source-grid a { transition: transform .2s ease, border-color .2s ease, background .2s ease; }
}

@media (max-width: 900px) {
  .stage { grid-template-columns: 1fr !important; gap: 22px !important; padding: 52px 0 !important; }
  .stage-copy { max-width: 650px; }
  .lab-card-grid { grid-template-columns: repeat(2,minmax(0,1fr)) !important; }
  .interop-diagram { grid-template-columns: 1fr !important; }
  .interop-link { padding: 2px 0; }
  .sources-section { grid-template-columns: 1fr !important; }
}

@media (max-width: 700px), (pointer: coarse) {
  :root {
    --site-page-pad: 14px;
    --site-glass-blur: 14px;
    --site-glass-saturation: 145%;
    --site-section-gap: 52px;
  }
  body, html[data-theme="light"] body { background-attachment: scroll !important; }
  .site-header {
    position: absolute !important;
    top: 12px !important;
    width: calc(100% - 32px) !important;
    grid-template-columns: minmax(0,1fr) auto !important;
    gap: 7px 8px !important;
    padding: 10px 12px !important;
    border-radius: 26px !important;
  }
  .brand { grid-column: 1; grid-row: 1; }
  /* Match the portfolio's compact first row, not the generic 44px link height. */
  .site-header .brand { min-height: 0; }
  .brand-mark { font-size: 1rem !important; }
  .brand-sub { display: none; }
  .theme-toggle { grid-column: 2; grid-row: 1; width: 32px; height: 32px; }
  .top-nav { grid-column: 1 / -1; grid-row: 2; width: 100%; gap: 6px !important; }
  .top-nav a { min-height: 34px; padding: 7px 12px !important; font-size: .78rem !important; }
  .hero { padding: 150px 0 58px !important; }
  .hero h1 { font-size: 2.48rem !important; line-height: 1.02 !important; letter-spacing: -.045em !important; }
  .hero-lede { font-size: .94rem !important; }
  .hero-thesis { font-size: .86rem !important; }
  .timeline-shell {
    top: 0 !important;
    margin-bottom: 30px !important;
    padding: 10px 12px 9px !important;
    border-radius: 20px !important;
  }
  .timeline-track { display: grid !important; }
  .mobile-stage-readout { display: flex !important; justify-content: space-between; align-items: center; color: var(--site-text-muted); font-size: .72rem; }
  .mobile-stage-readout strong { color: var(--site-text); font-size: .72rem; font-weight: 600; letter-spacing: .08em; }
  .timeline-note { display: none !important; }
  .stage { padding: 44px 0 !important; gap: 18px !important; scroll-margin-top: 58px; }
  .stage h2 { font-size: 2.2rem !important; }
  .stage-copy > p { font-size: .94rem !important; }
  .blackboard { border-radius: 20px !important; }
  .example { grid-template-columns: 1fr !important; padding: 18px !important; }
  .example-result { grid-column: 1; grid-row: auto; }
  .research-bridge, .same-model, .sources-section { padding: 20px !important; border-radius: 20px !important; }
  .bridge-head, .same-model-head { align-items: flex-start; flex-direction: column; }
  .bridge-head h2, .same-model-head h2, .section-intro h2, .sources-section > div:first-child h2 { font-size: 2rem !important; }
  .pattern-toggle { width: 100%; }
  .pattern-toggle button { flex: 1; }
  .lab-card-grid { grid-template-columns: 1fr !important; }
  .lab-card { min-height: 150px; }
  .system-compare { grid-template-columns: 1fr !important; }
  .lab-grid { grid-template-columns: 1fr !important; }
  .lab-pane + .lab-pane { border-left: 0 !important; border-top: 1px solid var(--site-glass-border) !important; }
  .lab-head { flex-direction: column; }
  .source-grid { grid-template-columns: 1fr !important; }
  .capability-grid { border-radius: 20px !important; }
  .mini-ide { grid-template-columns: 1fr; }
  .ide-tree { grid-row: auto; }
  footer { flex-direction: column; align-items: center; text-align: center; padding: 30px 0 36px !important; }
  footer div { flex-direction: column; gap: 2px; }
  .timeline-shell, .research-bridge, .pattern-stage, .capability-grid, .lab-card, .same-model, .system-card, .interop-diagram, .interop-node, .sources-section, .source-grid a, .example, .stage-lab, .site-header {
    -webkit-backdrop-filter: blur(14px) saturate(145%) !important;
    backdrop-filter: blur(14px) saturate(145%) !important;
  }
}

@media (pointer: coarse) {
  /* Keep larger touch controls in the content, but mirror the main site's
     32px theme button and 34px navigation pills in the header. */
  .primary-btn,
  .text-link,
  .lab-btn,
  .pattern-toggle button,
  .scenario button,
  .check {
    min-height: 44px;
  }

  .theme-toggle {
    min-height: 32px;
    width: 32px;
    height: 32px;
  }

  .top-nav a {
    min-height: 34px;
  }

  .check {
    display: flex;
    align-items: center;
  }
}

@media (max-width: 390px) {
  .hero h1 { font-size: 2.28rem !important; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .primary-btn, .text-link { width: 100%; }
  .stage h2 { font-size: 2rem !important; }
  .research-bridge, .same-model, .sources-section { padding: 18px !important; }
}

@supports (padding: max(0px)) {
  body { padding-left: env(safe-area-inset-left,0px); padding-right: env(safe-area-inset-right,0px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* Compact timeline and readable demonstrations, in both themes. */
.timeline-point i { background: var(--site-glass-fill-strong) !important; border-color: var(--site-border-strong) !important; }
.demo-options { display: flex; flex-wrap: wrap; gap: 10px; }
.demo-options label { display: flex; align-items: center; gap: 8px; }
.demo-output { margin-top: 16px; min-height: 70px; color: var(--site-text-muted); }
.system-console, .lab-console { background: var(--site-glass-fill) !important; color: var(--site-text) !important; border-color: var(--site-glass-border) !important; font-family: var(--site-font) !important; }
@media (max-width: 700px) {
  body .journey .timeline-shell { min-height: 60px; gap: 12px; padding: 8px 14px !important; }
  body .journey .timeline-point i { width: 10px !important; height: 10px !important; }
  body .journey .timeline-point.is-active i, body .journey .timeline-point[aria-current="step"] i { width: 14px !important; height: 14px !important; box-shadow: 0 0 0 4px rgba(0,122,255,.13) !important; background: var(--site-accent) !important; }
  .stage { scroll-margin-top: 78px !important; }
  .blackboard { padding: 16px !important; }
  .board-svg { margin: -16px 0; }
  .example-result { grid-column: 1 !important; grid-row: auto !important; }
}

/* Mobile navigation stays in the document, so it cannot cover reading content. */
@media (max-width: 700px), (pointer: coarse) {
  body .journey .timeline-shell {
    position: relative !important;
    top: auto !important;
    z-index: 1;
    margin-bottom: 20px !important;
    min-height: 56px;
  }
  .stage { padding: 30px 0 !important; scroll-margin-top: 20px !important; }
  .stage h2 { font-size: clamp(1.65rem, 7.5vw, 2rem) !important; line-height: 1.12 !important; }
  .stage .lab-head { padding: 14px 16px !important; }
  .stage .lab-pane { padding: 14px 16px !important; }
  .stage .lab-actions { display: flex !important; margin-top: 0; }
  .stage .lab-btn { width: auto; padding: 10px 16px !important; }
  .demo-output { min-height: 0; font-size: .88rem; line-height: 1.6; margin-top: 14px; }
  .research-bridge, .capability-section, .labs-hub, .same-model, .interop-section, .sources-section { margin-top: 36px !important; margin-bottom: 36px !important; }
}

/* ============================================================
   LIQUID GLASS GRAPHICS SYSTEM
   Shared visual language for every diagram, graph, flow, board,
   console and illustrated panel on the site. A "liquid-graphic"
   is a translucent glass canvas; "liquid-node" styles a glass
   element inside it; "liquid-console" is the glass terminal
   surface used by readouts, IDE panels and diffs.
   ============================================================ */

:root {
  --graphic-fill-1: rgba(255,255,255,.085);
  --graphic-fill-2: rgba(255,255,255,.028);
  --graphic-line: rgba(255,255,255,.35);
  --graphic-line-soft: rgba(255,255,255,.22);
  --graphic-ink: rgba(255,255,255,.94);
  --graphic-ink-muted: rgba(255,255,255,.62);
  --graphic-glow: 0 1px 24px rgba(99,231,255,.08);
  --graphic-blur: 22px;
  --graphic-sat: 165%;
}

html[data-theme="light"] {
  --graphic-fill-1: rgba(255,255,255,.92);
  --graphic-fill-2: rgba(255,255,255,.55);
  --graphic-line: rgba(71,85,105,.48);
  --graphic-line-soft: rgba(71,85,105,.24);
  --graphic-ink: #10161f;
  --graphic-ink-muted: #3b4658;
  --graphic-glow: 0 1px 22px rgba(0,98,204,.07);
}

/* --- The glass canvas ------------------------------------- */
.liquid-graphic,
.liquid-diagram {
  position: relative;
  color: var(--graphic-ink);
  background:
    linear-gradient(150deg, var(--graphic-fill-1), var(--graphic-fill-2) 58%);
  box-shadow:
    inset 0 1px 0 var(--site-glass-highlight),
    inset 0 0 0 1px rgba(255,255,255,.04),
    var(--graphic-glow),
    0 8px 26px var(--site-glass-shadow);
  -webkit-backdrop-filter: blur(var(--graphic-blur)) saturate(var(--graphic-sat));
  backdrop-filter: blur(var(--graphic-blur)) saturate(var(--graphic-sat));
}

/* Top sheen — a soft reflection along the upper rim */
.liquid-graphic::before,
.liquid-diagram::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background:
    linear-gradient(to bottom,
      rgba(255,255,255,.09),
      rgba(255,255,255,.02) 18%,
      transparent 42%);
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 44%);
  mask-image: linear-gradient(to bottom, #000, transparent 44%);
}
html[data-theme="light"] .liquid-graphic::before,
html[data-theme="light"] .liquid-diagram::before {
  background:
    linear-gradient(to bottom,
      rgba(255,255,255,.65),
      rgba(255,255,255,.14) 22%,
      transparent 46%);
}

/* --- Glass nodes / strokes inside an SVG graphic ---------- */
.liquid-node {
  fill: rgba(255,255,255,.07);
  stroke: rgba(255,255,255,.42);
  stroke-width: 1.5;
  vector-effect: non-scaling-stroke;
}
.liquid-node-core {
  fill: rgba(255,255,255,.16);
  stroke: rgba(255,255,255,.6);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}
.liquid-ink { fill: var(--graphic-ink); }
.liquid-ink-muted { fill: var(--graphic-ink-muted); }
.liquid-hairline { stroke: var(--graphic-line-soft); stroke-width: 1.25; vector-effect: non-scaling-stroke; fill: none; }
.liquid-hairline-core { stroke: var(--graphic-line); stroke-width: 1.5; vector-effect: non-scaling-stroke; fill: none; }

/* --- Console surfaces (terminals, diffs, readouts) -------- */
.liquid-console {
  position: relative;
  color: var(--graphic-ink);
  background:
    linear-gradient(160deg, var(--graphic-fill-1), var(--graphic-fill-2) 70%);
  border: 1px solid var(--site-glass-border);
  box-shadow:
    inset 0 1px 0 var(--site-glass-highlight),
    0 6px 20px var(--site-glass-shadow);
  -webkit-backdrop-filter: blur(var(--graphic-blur)) saturate(var(--graphic-sat));
  backdrop-filter: blur(var(--graphic-blur)) saturate(var(--graphic-sat));
}

/* --- Flow diagram nodes (HTML) ---------------------------- */
.liquid-flow-node {
  color: var(--graphic-ink);
  background:
    linear-gradient(150deg, var(--graphic-fill-1), var(--graphic-fill-2) 62%);
  border: 1px solid var(--site-glass-border);
  box-shadow:
    inset 0 1px 0 var(--site-glass-highlight),
    0 4px 14px var(--site-glass-shadow);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  backdrop-filter: blur(14px) saturate(150%);
}

/* --- Small chip / badge glass ---------------------------- */
.liquid-pill {
  color: var(--graphic-ink);
  background:
    linear-gradient(150deg, var(--graphic-fill-1), var(--graphic-fill-2) 62%);
  border: 1px solid var(--site-glass-border);
  box-shadow: inset 0 1px 0 var(--site-glass-highlight);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  backdrop-filter: blur(10px) saturate(140%);
}

@media (prefers-reduced-motion: reduce) {
  .liquid-graphic,
  .liquid-diagram,
  .liquid-console,
  .liquid-flow-node,
  .liquid-pill {
    transition: none;
  }
}