/* ==========================================================================
   Portfolio — editorial, chapter-based layout
   - Vertical scroll snaps between chapters (sections).
   - Experience / Projects / Skills scroll horizontally, one slide at a time.
   - Every slide declares its own identity via [data-theme]; JS copies the
     active slide's tokens into --chrome-* so header, controls and page
     background follow it.
   ========================================================================== */

/* ---------- Base tokens ---------- */
:root {
  --font-serif: "Instrument Serif", "Times New Roman", serif;
  --font-sans: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-hand: "Caveat", "Comic Sans MS", cursive;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  --header-h: 4rem;
  --foot-h: 4.25rem;
  --gutter: clamp(1.25rem, 5vw, 5rem);
  --ease: cubic-bezier(0.2, 0.7, 0.1, 1);
  --theme-dur: 0.45s;

  /* Chrome tokens (overwritten at runtime from the active slide) */
  --chrome-bg: #0f0f0f;
  --chrome-ink: #f2eee7;
  --chrome-muted: rgba(242, 238, 231, 0.6);
  --chrome-line: rgba(242, 238, 231, 0.18);
  --chrome-accent: #f2eee7;
  --chrome-on-accent: #0f0f0f;
  --chrome-display: var(--font-serif);
}

/* ---------- Slide identities ---------- */
[data-theme] {
  --font-display: var(--font-serif);
  --font-body: var(--font-sans);
  --display-weight: 400;
  --display-scale: 1;
  --display-tracking: -0.02em;
  --em-style: italic;
  --em-color: inherit;
  --radius: 4px;
  --card: rgba(255, 255, 255, 0.5);
  --on-card: var(--ink);
  --shadow: 0 30px 60px -35px rgba(0, 0, 0, 0.45);
}

[data-theme="ink"],
[data-theme="ink-glow"] {
  --bg: #0f0f0f;
  --ink: #f2eee7;
  --muted: rgba(242, 238, 231, 0.64);
  --line: rgba(242, 238, 231, 0.16);
  --accent: #f2eee7;
  --on-accent: #0f0f0f;
  --accent-2: #7f93a9;
  --on-accent-2: #ffffff;
  --card: rgba(255, 255, 255, 0.04);
}

[data-theme="ink-glow"] {
  --bg-image:
    radial-gradient(70% 90% at 78% -15%, rgba(255, 255, 255, 0.13), transparent 60%),
    radial-gradient(40% 60% at 0% 110%, rgba(127, 147, 169, 0.16), transparent 70%);
}

[data-theme="paper"] {
  --bg: #e9e5dc;
  --ink: #141414;
  --muted: rgba(20, 20, 20, 0.64);
  --line: rgba(20, 20, 20, 0.14);
  --accent: #141414;
  --on-accent: #e9e5dc;
  --accent-2: #7f93a9;
  --on-accent-2: #ffffff;
  --bg-image: radial-gradient(60% 80% at 100% 0%, rgba(255, 255, 255, 0.55), transparent 70%);
}

[data-theme="stone"] {
  --bg: #d6d2c9;
  --ink: #161616;
  --muted: rgba(22, 22, 22, 0.66);
  --line: rgba(22, 22, 22, 0.16);
  --accent: #161616;
  --on-accent: #d6d2c9;
  --accent-2: #7f93a9;
  --on-accent-2: #ffffff;
  --bg-image: radial-gradient(50% 70% at 0% 0%, rgba(255, 255, 255, 0.45), transparent 70%);
}

/* Experience · Northbridge University — from northbridge.edu: navy, gold, Lato */
[data-theme="northbridge"] {
  --bg: #f4f4f4;
  --ink: #021132;
  --muted: rgba(2, 17, 50, 0.68);
  --line: rgba(2, 17, 50, 0.13);
  --accent: #e2b13c;
  --on-accent: #021132;
  --accent-2: #021132;
  --on-accent-2: #ffffff;
  --accent-3: #1032cf;
  --font-display: "Lato", Arial, sans-serif;
  --font-body: "Lato", Arial, sans-serif;
  --display-weight: 900;
  --display-scale: 0.86;
  --display-tracking: -0.03em;
  --em-style: normal;
  --radius: 10px;
  --card: #ffffff;
  --shadow: 0 30px 60px -35px rgba(2, 17, 50, 0.45);
  --bg-image: linear-gradient(180deg, #ffffff 0%, #f4f4f4 55%, #dbdbdb 100%);
}

[data-theme="northbridge"] .display em {
  background: linear-gradient(transparent 62%, rgba(226, 177, 60, 0.9) 62%, rgba(226, 177, 60, 0.9) 92%, transparent 92%);
}

[data-theme="northbridge"] .board {
  border-top: 4px solid #e2b13c;
}

/* Experience · Cleatus — from cleat.ai: airy blue gradient, slate ink, system sans */
[data-theme="cleatus"] {
  --bg: #f8faff;
  --ink: #0f172a;
  --muted: #475569;
  --line: rgba(15, 23, 42, 0.1);
  --accent: #3b82f6;
  --on-accent: #ffffff;
  --accent-2: #eaf2ff;
  --on-accent-2: #243665;
  --accent-3: #d9566e;
  --font-display: "Inter", -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-body: "Inter", -apple-system, "Segoe UI", Roboto, sans-serif;
  --display-weight: 700;
  --display-scale: 0.88;
  --display-tracking: -0.04em;
  --em-style: normal;
  --radius: 16px;
  --card: #ffffff;
  --shadow: 0 30px 60px -30px rgba(36, 54, 101, 0.35);
  --bg-image:
    radial-gradient(30% 40% at 3% 62%, rgba(59, 130, 246, 0.22), transparent 74%),
    linear-gradient(180deg, #ffffff 0%, #f8faff 40%, #eaf2ff 70%, #e2e9fb 100%);
}

[data-theme="cleatus"] .display em {
  background: linear-gradient(90deg, #3b82f6, #243665);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

[data-theme="cleatus"] .tape {
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: none;
  transform: none;
}

/* Experience · Ábaco — from abacosoftware.com.ar: royal navy, lavender haze, Rajdhani */
[data-theme="abaco"] {
  --bg: #0d2d78;
  --ink: #ffffff;
  --muted: rgba(255, 255, 255, 0.74);
  --line: rgba(255, 255, 255, 0.18);
  --accent: #a6b0cb;
  --on-accent: #0d2d78;
  --accent-2: #a6b0cb;
  --on-accent-2: #0d2d78;
  --font-display: "Rajdhani", sans-serif;
  --font-body: "Lato", Arial, sans-serif;
  --display-weight: 600;
  --display-scale: 1.05;
  --display-tracking: -0.01em;
  --em-style: normal;
  --em-color: #c4b5fd;
  --radius: 14px;
  --card: #f8f9fb;
  --shadow: 0 40px 70px -35px rgba(5, 10, 40, 0.8);
  --bg-image:
    radial-gradient(45% 60% at 85% 20%, rgba(167, 139, 250, 0.35), transparent 70%),
    linear-gradient(135deg, #0d2d78 0%, #1b2a6b 55%, #191825 100%);
}

/* The Ábaco board is a light sheet on the navy slide */
[data-theme="abaco"] .board {
  --ink: #191825;
  --muted: rgba(25, 24, 37, 0.62);
  --line: rgba(13, 45, 120, 0.14);
  --accent: #0d2d78;
  --card: #f8f9fb;
}

[data-theme="abaco"] .tape {
  border-radius: 999px;
  font-weight: 700;
  transform: none;
}

/* Project · Fluent AI — product dark, emerald */
[data-theme="fluent"] {
  --bg: #0a0d14;
  --ink: #f3f4f6;
  --muted: rgba(243, 244, 246, 0.62);
  --line: rgba(243, 244, 246, 0.12);
  --accent: #10b981;
  --on-accent: #04110c;
  --accent-2: #10b981;
  --on-accent-2: #04110c;
  --font-display: "Manrope", sans-serif;
  --font-body: "Manrope", sans-serif;
  --display-weight: 800;
  --display-scale: 0.92;
  --display-tracking: -0.045em;
  --em-style: normal;
  --em-color: #10b981;
  --radius: 12px;
  --card: #0f141e;
  --bg-image: radial-gradient(40% 55% at 80% 20%, rgba(16, 185, 129, 0.14), transparent 70%);
}

/* Project · AutoBid AI — auction cream, mahogany */
[data-theme="autobid"] {
  --bg: #f2e9dc;
  --ink: #1e1611;
  --muted: rgba(30, 22, 17, 0.68);
  --line: rgba(30, 22, 17, 0.15);
  --accent: #9b2c1f;
  --on-accent: #ffffff;
  --accent-2: #9b2c1f;
  --on-accent-2: #ffffff;
  --font-display: "DM Serif Display", serif;
  --display-scale: 1;
  --em-color: #9b2c1f;
  --radius: 2px;
  --card: #f8f2e8;
}

/* Project · RAG Assistant — lavender, electric violet */
[data-theme="rag"] {
  --bg: #ebe6ff;
  --ink: #1b1340;
  --muted: rgba(27, 19, 64, 0.7);
  --line: rgba(27, 19, 64, 0.13);
  --accent: #6a45ff;
  --on-accent: #ffffff;
  --accent-2: #ff7ac6;
  --on-accent-2: #1b1340;
  --font-display: "Unbounded", sans-serif;
  --display-weight: 600;
  --display-scale: 0.74;
  --display-tracking: -0.04em;
  --em-style: normal;
  --em-color: #6a45ff;
  --radius: 22px;
  --card: #f6f3ff;
  --bg-image: radial-gradient(45% 60% at 90% 90%, rgba(255, 122, 198, 0.25), transparent 70%);
}

/* Project · Absence Predictor — sticky-note yellow, handwritten */
[data-theme="absence"] {
  --bg: #f6e05e;
  --ink: #161616;
  --muted: rgba(22, 22, 22, 0.72);
  --line: rgba(22, 22, 22, 0.16);
  --accent: #161616;
  --on-accent: #f6e05e;
  --accent-2: #2747ff;
  --on-accent-2: #ffffff;
  --font-display: "Caveat", cursive;
  --display-weight: 700;
  --display-scale: 1.3;
  --display-tracking: -0.01em;
  --em-style: normal;
  --em-color: #2747ff;
  --radius: 2px;
  --card: #fff8c4;
}

/* Project · K-Means Clustering — lab white, cluster primaries */
[data-theme="cluster"] {
  --bg: #fbfaf7;
  --ink: #111111;
  --muted: rgba(17, 17, 17, 0.66);
  --line: rgba(17, 17, 17, 0.12);
  --accent: #3a56d4;
  --on-accent: #ffffff;
  --accent-2: #e63946;
  --on-accent-2: #ffffff;
  --font-display: "Syne", sans-serif;
  --display-weight: 800;
  --display-scale: 0.86;
  --display-tracking: -0.04em;
  --em-style: normal;
  --em-color: #3a56d4;
  --radius: 0;
  --card: #ffffff;
  --bg-image: radial-gradient(rgba(17, 17, 17, 0.09) 1px, transparent 1px);
}

/* Project · Crypto Tracker — terminal black, bitcoin orange */
[data-theme="crypto"] {
  --bg: #060707;
  --ink: #e7e7e7;
  --muted: rgba(231, 231, 231, 0.62);
  --line: rgba(231, 231, 231, 0.12);
  --accent: #f7931a;
  --on-accent: #060707;
  --accent-2: #f7931a;
  --on-accent-2: #060707;
  --font-display: "JetBrains Mono", monospace;
  --display-weight: 700;
  --display-scale: 0.78;
  --display-tracking: -0.05em;
  --em-style: normal;
  --em-color: #22c55e;
  --radius: 6px;
  --card: #0c0e0e;
  --bg-image: linear-gradient(rgba(34, 197, 94, 0.05) 1px, transparent 1px);
}

/* Coming soon · Ronda — from the Ronda brand manual: papel, monte, mandarina, Bricolage Grotesque */
[data-theme="ronda"] {
  --bg: #faf4e8;
  --ink: #143830;
  --muted: #4f6259;
  --line: #e4d9c4;
  --accent: #245847;
  --on-accent: #fffdf8;
  --accent-2: #fce2d6;
  --on-accent-2: #8a3a1b;
  --font-display: "Bricolage Grotesque", ui-rounded, system-ui, sans-serif;
  --font-body: ui-rounded, "SF Pro Rounded", var(--font-sans);
  --display-weight: 800;
  --display-scale: 0.98;
  --display-tracking: -0.03em;
  --em-style: normal;
  --em-color: #b5431f;
  --radius: 22px;
  --card: #fffdf8;
  --shadow: 0 1px 2px rgba(20, 56, 48, 0.08), 0 30px 60px -30px rgba(20, 56, 48, 0.35);
  --bg-image:
    radial-gradient(40% 55% at 88% 12%, rgba(240, 107, 62, 0.16), transparent 70%),
    radial-gradient(35% 45% at 0% 100%, rgba(247, 166, 57, 0.14), transparent 70%);
}

/* Coming soon · Lumbre — from the "Gris neurona" palette: gray, neuron black, one spark pink, Fraunces */
[data-theme="lumbre"] {
  --bg: #e3e3df;
  --ink: #0e0e10;
  --muted: #5a5a5e;
  --line: #c6c6c0;
  --accent: #0e0e10;
  --on-accent: #f2f2ef;
  --accent-2: #d5d5d0;
  --on-accent-2: #0e0e10;
  --font-display: "Fraunces", Georgia, serif;
  --display-weight: 600;
  --display-scale: 1.02;
  --display-tracking: -0.025em;
  --em-style: normal;
  --em-color: #ff3ea5;
  --radius: 14px;
  --card: #ecece9;
  --shadow: 0 1px 2px rgba(14, 14, 16, 0.06), 0 30px 60px -30px rgba(14, 14, 16, 0.25);
  /* The app's dormant neural network: a band at the top that fades into the content */
  --bg-image:
    linear-gradient(to bottom, rgba(227, 227, 223, 0) 4rem, #e3e3df 17rem),
    url("../assets/logos/lumbre-red.svg");
}

[data-theme="lumbre"].slide {
  background-position: top center;
  background-repeat: no-repeat;
  background-size: auto, max(75rem, 100%) auto;
}

[data-theme="lumbre"] .display,
[data-theme="lumbre"] .specs__aa,
.brandmark--lumbre .brandmark__word {
  font-variation-settings: "SOFT" 100, "WONK" 1;
}

/* Coming soon · Zero — from the Zero theme: bordó, ice-blue ink, Outfit */
[data-theme="zero"] {
  --bg: #620b26;
  --ink: #cfe5ff;
  --muted: #d2b7c2;
  --line: rgba(207, 229, 255, 0.14);
  --accent: #cfe5ff;
  --on-accent: #7c1034;
  --accent-2: #cfe5ff;
  --on-accent-2: #7c1034;
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Outfit", system-ui, sans-serif;
  --display-weight: 600;
  --display-scale: 1;
  --display-tracking: -0.04em;
  --em-style: normal;
  --em-color: #4fe0ae;
  --radius: 22px;
  --card: #7c1034;
  --shadow: 0 40px 70px -35px rgba(30, 2, 10, 0.8);
  --bg-image:
    radial-gradient(45% 60% at 85% 15%, rgba(255, 241, 244, 0.1), transparent 70%),
    linear-gradient(180deg, #6c0d2b 0%, #620b26 55%, #5a0923 100%);
}

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

html {
  height: 100%;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  background-color: var(--chrome-bg);
  transition: background-color var(--theme-dur) var(--ease);
  scrollbar-width: none;
  -webkit-text-size-adjust: 100%;
}

html::-webkit-scrollbar {
  display: none;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--chrome-ink);
  background-color: var(--chrome-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Film grain over everything, like a scanned print */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 45;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .5 0 0 0 0 .5 0 0 0 0 .5 0 0 0 .9 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img {
  max-width: 100%;
}

a {
  color: inherit;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent, var(--chrome-accent));
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--chrome-ink);
  color: var(--chrome-bg);
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: none;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 0 var(--gutter);
  color: var(--chrome-ink);
  transition: color var(--theme-dur) var(--ease);
}

.site-header__brand {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  text-decoration: none;
  line-height: 1;
}

.site-header__mark {
  font-family: var(--chrome-display);
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.site-header__brand small {
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--chrome-muted);
  white-space: nowrap;
}

.site-nav {
  margin-left: auto;
}

.site-nav ul {
  display: flex;
  gap: clamp(1rem, 2vw, 2rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  position: relative;
  padding: 0.4rem 0;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  opacity: 0.62;
  transition: opacity 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}

.nav-link:hover,
.nav-link.active {
  opacity: 1;
}

.nav-link.active::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: none;
  color: inherit;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.icon-button:hover {
  border-color: var(--chrome-line);
}

.lang-toggle {
  display: inline-flex;
  gap: 0.3rem;
  width: auto;
  padding: 0 0.8rem;
  border-color: var(--chrome-line);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.lang-toggle span {
  opacity: 0.45;
  transition: opacity 0.2s ease;
}

.lang-toggle .is-current {
  opacity: 1;
}

.mobile-only {
  display: none;
}

/* ---------- Mobile navigation ---------- */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 55;
  display: flex;
  align-items: center;
  padding: var(--header-h) var(--gutter);
  background: var(--chrome-bg);
  color: var(--chrome-ink);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease), visibility 0.35s;
}

.mobile-nav.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav ul {
  display: grid;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.mobile-nav .nav-link {
  font-family: var(--chrome-display);
  font-size: 2.6rem;
  letter-spacing: -0.01em;
  text-transform: none;
  opacity: 1;
}

/* ---------- Chapter dots ---------- */
.chapter-dots {
  position: fixed;
  top: 50%;
  right: calc(var(--gutter) * 0.4);
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transform: translateY(-50%);
}

.chapter-dots a {
  display: block;
  width: 0.45rem;
  height: 0.45rem;
  border: 1px solid var(--chrome-ink);
  border-radius: 50%;
  opacity: 0.45;
  transition: background-color 0.3s ease, opacity 0.3s ease, transform 0.3s var(--ease), border-color var(--theme-dur);
}

.chapter-dots a:hover,
.chapter-dots a.active {
  opacity: 1;
}

.chapter-dots a.active {
  background: var(--chrome-ink);
  transform: scale(1.35);
}

/* ---------- Chapters & slides ---------- */
.chapter {
  position: relative;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.h-track {
  display: flex;
  height: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
  cursor: grab;
}

.h-track::-webkit-scrollbar {
  display: none;
}

.h-track:focus-visible {
  outline: none;
}

.h-track.is-dragging {
  scroll-snap-type: none;
  scroll-behavior: auto;
  cursor: grabbing;
  user-select: none;
}

.h-track.is-dragging img {
  pointer-events: none;
}

.slide {
  position: relative;
  display: flex;
  flex-direction: column;
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  padding: calc(var(--header-h) + clamp(0.5rem, 2vh, 1.5rem)) var(--gutter) var(--foot-h);
  overflow: hidden;
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--bg);
  background-image: var(--bg-image, none);
  background-size: auto;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

[data-theme="cluster"].slide {
  background-size: 1.4rem 1.4rem;
}

[data-theme="crypto"].slide {
  background-size: 100% 2.2rem;
}

.slide__body {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5.5rem);
  align-items: center;
}

.slide__foot {
  position: absolute;
  left: var(--gutter);
  bottom: 1.5rem;
  display: flex;
  gap: 0.9rem;
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.slide__foot > span:first-child {
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  color: var(--ink);
}

/* Reveal on slide activation */
.js .reveal {
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
  transition-delay: calc(var(--d, 0) * 45ms);
}

.js .is-seen .reveal {
  opacity: 1;
  transform: none;
}

/* ---------- Typography primitives ---------- */
.display {
  margin: 0;
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: calc(var(--display-size, clamp(2.4rem, min(5vw, 8.5vh), 4.75rem)) * var(--display-scale));
  line-height: 0.95;
  letter-spacing: var(--display-tracking);
  text-wrap: balance;
}

.display em {
  font-style: var(--em-style);
  color: var(--em-color);
}

.display--xl {
  --display-size: clamp(4rem, min(12vw, 21vh), 11.5rem);
  line-height: 0.85;
}

.display--xxl {
  --display-size: clamp(4.5rem, min(15vw, 26vh), 15rem);
  line-height: 0.82;
}

.kicker {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.kicker::before {
  content: "";
  width: 1.75rem;
  height: 1px;
  background: currentColor;
}

.lead {
  max-width: 34rem;
  margin: 1.5rem 0 0;
  font-size: clamp(0.95rem, 0.4vw + 0.8rem, 1.15rem);
  line-height: 1.55;
  color: var(--muted);
}

.hand {
  margin: 0;
  font-family: var(--font-hand);
  font-weight: 500;
  font-size: 1.45rem;
  line-height: 1.1;
}

/* Tape label (bold sans on a colored strip) */
.tape {
  display: inline-block;
  padding: 0.38em 0.7em 0.32em;
  font-family: var(--font-sans);
  font-size: 0.74rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--on-accent-2);
  background: var(--accent-2);
  transform: rotate(-1.5deg);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.18);
}

/* Serif word printed on a paper strip */
.paper-word {
  display: inline-block;
  padding: 0.08em 0.28em 0.04em;
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 2.6vw, 2.6rem);
  line-height: 1;
  color: #141414;
  background: #f6f3ee;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
}

/* Polaroid frame */
.polaroid {
  position: relative;
  width: fit-content;
  margin: 0;
  padding: 0.6rem 0.6rem 2.4rem;
  background: #f7f5f0;
  box-shadow: 0 22px 45px -12px rgba(0, 0, 0, 0.45), 0 2px 6px rgba(0, 0, 0, 0.18);
  transform: rotate(var(--rot, -3deg));
}

.polaroid img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.polaroid figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.45rem;
  font-family: var(--font-hand);
  font-size: 1.3rem;
  text-align: center;
  color: #222222;
}

.clip {
  position: absolute;
  top: -1.6rem;
  left: 1.4rem;
  z-index: 2;
  width: 1.3rem;
  height: 3.1rem;
  color: #a9a9a9;
  filter: drop-shadow(1px 2px 1px rgba(0, 0, 0, 0.35));
}

/* Translucent masking-tape strip */
.strip {
  position: absolute;
  z-index: 2;
  width: 5.5rem;
  height: 1.5rem;
  background: rgba(238, 230, 210, 0.72);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
}

.strip--tl {
  top: 0.4rem;
  left: 0.6rem;
  transform: rotate(-28deg);
}

.strip--br {
  right: 0.6rem;
  bottom: 0.6rem;
  transform: rotate(-28deg);
}

/* Buttons */
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: clamp(1rem, 2.5vh, 1.75rem);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.8rem 1.15rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: none;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background-color 0.25s ease, color 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--solid {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--on-accent);
}

[data-theme="northbridge"] .btn,
[data-theme="autobid"] .btn,
[data-theme="cluster"] .btn,
[data-theme="absence"] .btn {
  border-radius: var(--radius);
}

/* ---------- Horizontal controls ---------- */
.h-controls {
  position: absolute;
  left: 50%;
  bottom: 1.1rem;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--chrome-ink);
  transform: translateX(-50%);
  transition: color var(--theme-dur) var(--ease);
}

.h-btn {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--chrome-line);
  border-radius: 50%;
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: background-color 0.25s ease, color 0.25s ease, opacity 0.25s ease, border-color var(--theme-dur);
}

.h-btn:hover:not(:disabled) {
  background: var(--chrome-ink);
  color: var(--chrome-bg);
}

.h-btn:disabled {
  opacity: 0.3;
  cursor: default;
}

.h-progress {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.h-counter b {
  font-weight: 700;
}

.h-bar {
  position: relative;
  width: 5.5rem;
  height: 1px;
  overflow: hidden;
  background: var(--chrome-line);
}

.h-bar i {
  position: absolute;
  inset: 0;
  background: currentColor;
  transform: scaleX(var(--p, 0.25));
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}

.h-hint {
  position: absolute;
  left: calc(100% + 1rem);
  font-family: var(--font-hand);
  font-size: 1.05rem;
  white-space: nowrap;
  color: var(--chrome-muted);
}

/* ==========================================================================
   Cover — open binder, "Port | folio" across the spine
   ========================================================================== */
.cover {
  justify-content: center;
}

.binder {
  position: relative;
  container-type: inline-size;
  width: min(100%, 74rem, calc((100dvh - var(--header-h) - var(--foot-h) - 2rem) * 1.6));
  aspect-ratio: 1.6;
  margin: auto;
  padding: 2.2% 3.4% 2.2% 2.6%;
  border-radius: 2.4cqw;
  background:
    radial-gradient(80% 120% at 20% 0%, rgba(255, 255, 255, 0.7), transparent 60%),
    linear-gradient(135deg, #eeece8, #c9c6bf);
  box-shadow: 0 50px 90px -40px rgba(0, 0, 0, 0.9), inset 0 0 0 1px rgba(255, 255, 255, 0.5), inset 0 -6px 18px rgba(0, 0, 0, 0.12);
}

.binder__pages {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  height: 100%;
}

.binder__page {
  position: relative;
}

.binder__page--left {
  border-radius: 1.4cqw 0 0 1.4cqw;
  color: #f2eee7;
  background:
    radial-gradient(60% 50% at 60% 40%, rgba(255, 255, 255, 0.08), transparent 70%),
    linear-gradient(160deg, #2a2a2a, #111111 65%, #1d1d1d);
  box-shadow: inset -12px 0 24px rgba(0, 0, 0, 0.5);
}

.binder__page--right {
  border-radius: 0 1.4cqw 1.4cqw 0;
  color: #141414;
  background: linear-gradient(200deg, #f5f3ef, #dcd9d2);
  box-shadow: inset 14px 0 24px rgba(0, 0, 0, 0.18);
}

.binder__rings {
  position: absolute;
  top: 7%;
  bottom: 7%;
  left: 50%;
  z-index: 3;
  display: flex;
  flex-direction: column;
  width: 6.4cqw;
  transform: translateX(-50%);
}

.binder__rings span {
  height: 1.25cqw;
  margin-bottom: 2.4cqw;
  border-radius: 1cqw;
  background: linear-gradient(180deg, #fafafa, #a3a3a3 45%, #e7e7e7 62%, #8c8c8c);
  box-shadow: 0 0.3cqw 0.4cqw rgba(0, 0, 0, 0.45);
}

.binder__rings span:nth-child(3) {
  margin-bottom: auto;
}

.binder__rings span:last-child {
  margin-bottom: 0;
}

.binder__title {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 27%;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 0;
  font-family: var(--font-serif);
  font-size: 16.5cqw;
  font-weight: 400;
  line-height: 0.8;
  letter-spacing: -0.03em;
  pointer-events: none;
}

.binder__port {
  padding-right: 0.03em;
  text-align: right;
  color: #f2eee7;
}

.binder__folio {
  padding-left: 0.05em;
  font-style: italic;
  text-align: left;
  color: #111111;
}

.binder__owner {
  position: absolute;
  top: 7%;
  left: 7%;
  display: grid;
  gap: 0.5cqw;
  margin: 0;
  font-size: max(0.6rem, 0.95cqw);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.binder__owner small {
  font-weight: 400;
  letter-spacing: 0.12em;
  opacity: 0.6;
}

.binder__pill {
  position: absolute;
  top: 31%;
  left: 19%;
  padding: 0.3cqw 0.9cqw;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-family: var(--font-hand);
  font-size: max(0.75rem, 1.35cqw);
  background: #f2eee7;
  color: #141414;
  transform: rotate(-4deg);
}

.binder__role {
  position: absolute;
  font-size: max(0.6rem, 1.75cqw);
}

.binder__role--1 {
  top: 36%;
  left: 14%;
  background: #7f93a9;
  color: #ffffff;
}

.binder__role--2 {
  top: 73.5%;
  left: 6%;
  background: #141414;
  color: #ffffff;
  transform: rotate(1deg);
}

.binder__card {
  position: absolute;
  left: 7%;
  bottom: 8%;
  display: grid;
  gap: 0.35cqw;
  padding: 1.2cqw 1.6cqw 1.2cqw 5.2cqw;
  font-size: max(0.55rem, 0.95cqw);
  color: #1a1a1a;
  background:
    linear-gradient(90deg, #cdbf9f 0 3.8cqw, transparent 3.8cqw),
    #f0eee9;
  box-shadow: 0 1cqw 2cqw rgba(0, 0, 0, 0.45);
  transform: rotate(-3deg);
}

.binder__card a {
  text-decoration: none;
}

.binder__card a:hover {
  text-decoration: underline;
}

.binder__photo {
  position: absolute;
  top: 6%;
  right: 12%;
  width: 15cqw;
  padding: 0.6cqw 0.6cqw 2.6cqw;
  --rot: 4deg;
}

.binder__photo img {
  aspect-ratio: 3 / 4;
  filter: grayscale(1) contrast(1.08);
}

.binder__photo figcaption {
  bottom: 0.4cqw;
  font-size: max(0.8rem, 1.7cqw);
}

.binder__photo .clip {
  top: -1.6cqw;
  left: 1.2cqw;
  width: 1.6cqw;
  height: 4cqw;
}

.binder__note {
  position: absolute;
  right: 13%;
  bottom: 7%;
  max-width: 17cqw;
  font-size: max(0.9rem, 1.65cqw);
  text-align: right;
  transform: rotate(-6deg);
}

.binder__tabs {
  position: absolute;
  top: 12%;
  right: 0.9cqw;
  z-index: 1;
  display: grid;
  gap: 0.8cqw;
}

.binder__tabs a {
  display: grid;
  place-items: center;
  width: 2.6cqw;
  height: 8.5cqw;
  border-radius: 0 0.9cqw 0.9cqw 0;
  font-size: max(0.5rem, 0.8cqw);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: #d8d8d8;
  background: linear-gradient(90deg, #1b1b1b, #3a3a3a);
  writing-mode: vertical-rl;
  transition: transform 0.3s var(--ease);
}

.binder__tabs a:hover {
  transform: translateX(0.5cqw);
}

/* ==========================================================================
   About
   ========================================================================== */
.about__body {
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
}

.about__visual {
  position: relative;
  justify-self: center;
}

.polaroid--lg {
  width: min(21rem, 28vw, 46vh);
}

.polaroid--lg img {
  aspect-ratio: 3 / 4;
  filter: contrast(1.05);
}

.paper-word {
  position: absolute;
  z-index: 3;
}

.paper-word--1 {
  top: 7%;
  left: -14%;
  transform: rotate(-5deg);
}

.paper-word--2 {
  right: -16%;
  bottom: 12%;
  transform: rotate(3deg);
}

.about__hello {
  display: inline-flex;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
  transform: rotate(-4deg);
}

.about__name {
  --display-size: clamp(2.4rem, min(4.6vw, 8vh), 4.4rem);
  padding-bottom: 0.25em;
  border-bottom: 1px solid var(--line);
}

.about__copy {
  display: grid;
  gap: 0.75rem;
  margin-top: clamp(1rem, 2.4vh, 1.6rem);
}

.about__copy p {
  max-width: 40rem;
  margin: 0;
  font-size: clamp(0.85rem, 0.3vw + 0.72rem, 1rem);
  line-height: 1.6;
  color: var(--muted);
}

.facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem 2rem;
  max-width: 40rem;
  margin: clamp(1rem, 2.5vh, 1.6rem) 0 0;
}

.facts dt,
.specs__label,
.contact-list__label {
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.facts dd {
  margin: 0.3rem 0 0;
  font-size: 0.9rem;
}

/* ==========================================================================
   Chapter intro (table of contents)
   ========================================================================== */
.intro__body {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
}

.intro__note {
  margin-top: 1.25rem;
  transform: rotate(-3deg);
  transform-origin: left;
}

.index {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.index li {
  border-bottom: 1px solid var(--line);
}

.index__item {
  position: relative;
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr) auto;
  grid-template-areas:
    "num name year"
    "num role year";
  align-items: baseline;
  gap: 0.15rem 1rem;
  width: 100%;
  padding: clamp(0.9rem, 2.4vh, 1.4rem) 0.5rem;
  border: 0;
  background: none;
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: padding 0.35s var(--ease), background-color 0.35s ease;
}

.index__item::before {
  content: "";
  position: absolute;
  top: 50%;
  right: 0.5rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--dot);
  transform: translateY(-50%) scale(0);
  transition: transform 0.35s var(--ease);
}

.index__item:hover {
  padding-left: 1.1rem;
}

.index__item:hover::before {
  transform: translateY(-50%) scale(1);
}

.index__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
}

.index__name {
  grid-area: name;
  font-family: var(--f);
  font-weight: var(--fw, 400);
  font-size: clamp(1.35rem, min(2.4vw, 4.2vh), 2.2rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.index__role {
  grid-area: role;
  font-size: 0.78rem;
  color: var(--muted);
}

.index__year {
  grid-area: year;
  margin-right: 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
}

.index--compact .index__item {
  grid-template-areas: "num name role";
  align-items: center;
  padding-top: clamp(0.6rem, 1.6vh, 1rem);
  padding-bottom: clamp(0.6rem, 1.6vh, 1rem);
}

.index--compact .index__name {
  font-size: clamp(1.15rem, min(2vw, 3.6vh), 1.8rem);
}

.index--compact .index__role {
  margin-right: 1.75rem;
  text-align: right;
}

/* ==========================================================================
   Case slides (experience + projects)
   ========================================================================== */
.case__body {
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  align-items: stretch;
}

.case__text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.case__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.75rem;
  margin: clamp(0.9rem, 2.2vh, 1.4rem) 0 clamp(1rem, 2.6vh, 1.6rem);
  font-size: 0.8rem;
  color: var(--muted);
}

.case__desc {
  max-width: 36rem;
  margin: 0 0 clamp(0.75rem, 2vh, 1.2rem);
  font-size: clamp(0.88rem, 0.35vw + 0.72rem, 1.02rem);
  line-height: 1.6;
  color: var(--ink);
}

.points {
  display: grid;
  gap: clamp(0.5rem, 1.4vh, 0.85rem);
  max-width: 38rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.points li {
  position: relative;
  padding-left: 1.5rem;
  font-size: clamp(0.8rem, 0.3vw + 0.66rem, 0.93rem);
  line-height: 1.52;
  color: var(--muted);
}

.points li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 0.8rem;
  height: 1px;
  background: var(--accent);
}

.points strong {
  font-weight: 700;
  color: var(--ink);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: clamp(0.9rem, 2.2vh, 1.3rem) 0 0;
  padding: 0;
  list-style: none;
}

.chips li {
  padding: 0.32rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

[data-theme="crypto"] .chips li,
[data-theme="cluster"] .chips li,
[data-theme="northbridge"] .chips li {
  border-radius: var(--radius);
}

.case__visual {
  display: flex;
  align-items: center;
  min-width: 0;
  min-height: 0;
}

/* Brand board: logo + key visual + palette + typeface */
.board {
  position: relative;
  display: grid;
  color: var(--ink);
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: clamp(0.8rem, 2vh, 1.25rem);
  width: 100%;
  height: min(100%, 38rem);
  padding: clamp(1rem, 2vw, 1.6rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}

.board__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: clamp(0.7rem, 1.8vh, 1rem);
  border-bottom: 1px solid var(--line);
}

.board__num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
}

.board__art {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 0;
}

.board__caption {
  position: absolute;
  top: 0;
  left: 0;
  margin: 0;
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.specs {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem 2rem;
  padding-top: clamp(0.7rem, 1.8vh, 1rem);
  border-top: 1px solid var(--line);
}

.specs__label {
  display: block;
  margin-bottom: 0.55rem;
}

.swatches {
  display: flex;
  gap: 0.45rem;
  padding-bottom: 0.95rem;
}

.swatches i {
  position: relative;
  display: block;
  width: 1.9rem;
  height: 1.9rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--c);
}

.swatches i::after {
  content: attr(data-hex);
  position: absolute;
  top: calc(100% + 0.25rem);
  left: 50%;
  font-family: var(--font-mono);
  font-size: 0.48rem;
  font-style: normal;
  color: var(--muted);
  transform: translateX(-50%);
}

.specs__type {
  display: grid;
  grid-template-columns: auto auto;
  align-items: baseline;
  column-gap: 0.6rem;
}

.specs__type .specs__label {
  grid-column: 1 / -1;
}

.specs__aa {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: calc(2.4rem * var(--display-scale));
  line-height: 0.9;
}

.specs__name {
  font-size: 0.75rem;
  color: var(--muted);
}

/* ---------- Brandmarks ---------- */
.brandmark {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  min-width: 0;
}

.brandmark__word {
  display: block;
  margin: 0;
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: 1.45rem;
  line-height: 1;
  letter-spacing: -0.01em;
}

.brandmark__word small {
  display: block;
  margin-top: 0.3rem;
  font-family: var(--font-sans);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.brandmark__tile,
.brandmark__seal,
.brandmark__bubble,
.brandmark__note {
  display: grid;
  flex: none;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
}

/* Official logos (Northbridge, Cleatus, Ábaco) */
.brandmark__logo {
  display: block;
  width: auto;
  max-width: 100%;
  height: 2.6rem;
}

.brandmark--northbridge .brandmark__logo {
  height: 3.1rem;
}

.brandmark--cleatus .brandmark__logo {
  height: 1.35rem;
}

.brandmark--abaco .brandmark__logo {
  height: 2.5rem;
}

.brandmark__badge {
  padding: 0.3rem 0.65rem;
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 600;
  white-space: nowrap;
  color: #243665;
  background: #eaf2ff;
}

/* Fluent tile */
.brandmark--fluent .brandmark__tile {
  border-radius: 0.6rem;
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  font-size: 1.4rem;
  color: #111827;
  background: #f3f4f6;
}

.brandmark--fluent .brandmark__word {
  display: flex;
  align-items: flex-start;
  font-size: 1.75rem;
  letter-spacing: -0.05em;
  background: linear-gradient(90deg, #ffffff, #9ca3af);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brandmark--fluent sup {
  margin-left: 0.35rem;
  padding: 0.2rem 0.4rem;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #04110c;
  background: #10b981;
  -webkit-text-fill-color: #04110c;
}

/* AutoBid wax seal */
.brandmark__seal {
  border-radius: 50%;
  font-family: "DM Serif Display", serif;
  font-size: 1.05rem;
  color: #f2e9dc;
  background: radial-gradient(circle at 35% 30%, #c24a3a, #7c2016 70%);
  box-shadow: inset 0 0 0 3px rgba(242, 233, 220, 0.25), 0 4px 10px rgba(124, 32, 22, 0.4);
}

.brandmark--autobid .brandmark__word em {
  color: var(--accent);
}

/* RAG speech bubble */
.brandmark__bubble {
  width: 3.4rem;
  border-radius: 1.2rem 1.2rem 1.2rem 0.25rem;
  font-family: "Unbounded", sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  color: #ffffff;
  background: #6a45ff;
}

.brandmark--rag .brandmark__word {
  font-size: 1.15rem;
}

.brandmark--rag .brandmark__word em {
  font-style: normal;
  color: #ff7ac6;
}

/* Absence sticky note */
.brandmark__note {
  font-family: "Caveat", cursive;
  font-weight: 700;
  font-size: 1.1rem;
  color: #161616;
  background: #fff8c4;
  box-shadow: 0 6px 12px -4px rgba(0, 0, 0, 0.35);
  transform: rotate(-6deg);
}

.brandmark--absence .brandmark__word {
  font-size: 2rem;
}

/* Cluster dots */
.brandmark__dots {
  position: relative;
  flex: none;
  width: 2.9rem;
  height: 2.6rem;
}

.brandmark__dots i {
  position: absolute;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  mix-blend-mode: multiply;
}

.brandmark__dots i:nth-child(1) {
  top: 0;
  left: 0.7rem;
  background: #e63946;
}

.brandmark__dots i:nth-child(2) {
  bottom: 0;
  left: 0;
  background: #3a56d4;
}

.brandmark__dots i:nth-child(3) {
  right: 0;
  bottom: 0;
  background: #2a9d8f;
}

/* Crypto tile */
.brandmark--crypto .brandmark__tile {
  border: 1px solid #f7931a;
  border-radius: 0.4rem;
  font-size: 1.4rem;
  color: #f7931a;
}

.brandmark--crypto .brandmark__word {
  font-size: 1.15rem;
  letter-spacing: -0.04em;
}

/* ---------- Coming soon (Ronda, Lumbre, Zero) ---------- */
.index__item--soon {
  opacity: 0.5;
}

.index__item--soon:hover {
  opacity: 0.85;
}

.index__item--soon .index__name {
  filter: blur(1.5px);
  transition: filter 0.35s ease;
}

.index__item--soon:hover .index__name {
  filter: none;
}

.index__item--soon .index__role {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.soon-status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: clamp(1rem, 2.6vh, 1.6rem) 0 0;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.soon-status i {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent);
  animation: soon-pulse 2s ease-out infinite;
}

@keyframes soon-pulse {
  70% {
    box-shadow: 0 0 0 0.5rem transparent;
  }

  100% {
    box-shadow: 0 0 0 0 transparent;
  }
}

/* App icons (rounded like the home screen) */
.brandmark__icon {
  display: block;
  flex: none;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 22.37%;
  box-shadow: 0 4px 12px -4px rgba(0, 0, 0, 0.35);
}

.brandmark--ronda .brandmark__word {
  font-size: 1.7rem;
  letter-spacing: -0.03em;
}

.brandmark--lumbre .brandmark__word {
  font-size: 1.75rem;
}

.brandmark--lumbre .brandmark__word b {
  color: #ff3ea5;
}

/* Zero tile, drawn like ZeroMark: Outfit "0" on a bordó squircle */
.brandmark__icon--zero {
  display: grid;
  place-items: center;
  border: 0.5px solid rgba(255, 241, 244, 0.15);
  font-family: "Outfit", sans-serif;
  font-weight: 600;
  font-size: 2rem;
  line-height: 1;
  color: #fff1f4;
  background: linear-gradient(180deg, #8a1e40, #7c1034);
  box-shadow: 0 6px 16px -4px rgba(0, 0, 0, 0.45);
}

.brandmark--zero .brandmark__word {
  font-size: 1.75rem;
  letter-spacing: -0.04em;
}

/* Blurred phone teaser */
.soon-phone {
  --m-pad: clamp(0.55rem, 1.4vh, 0.85rem);
  display: flex;
  flex-direction: column;
  gap: var(--m-pad);
  height: 100%;
  max-height: 24rem;
  aspect-ratio: 9 / 18.5;
  padding: calc(var(--m-pad) * 2.2) var(--m-pad) var(--m-pad);
  overflow: hidden;
  border: 0.4rem solid var(--m-frame);
  border-radius: 2rem;
  background: var(--m-bg);
  filter: blur(5px) saturate(1.1);
  transform: rotate(-4deg);
  user-select: none;
}

.soon-phone > * {
  flex: none;
}

.mock-title,
.mock-sub,
.mock-card b,
.mock-row b {
  display: block;
  height: 0.65rem;
  border-radius: 999px;
  background: var(--m-ink);
}

.mock-title {
  width: 58%;
  height: 0.95rem;
}

.mock-sub {
  width: 38%;
  height: 0.45rem;
  margin-top: -0.3rem;
  opacity: 0.45;
}

.mock-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--m-pad);
}

.mock-card {
  display: grid;
  gap: 0.3rem;
}

.mock-card i {
  display: block;
  aspect-ratio: 1;
  border-radius: 0.7rem;
  background: var(--m);
}

.mock-card b {
  width: 85%;
  height: 0.4rem;
  opacity: 0.7;
}

.mock-card b + b {
  width: 55%;
  opacity: 0.35;
}

.mock-hero {
  display: grid;
  place-items: center;
  padding: 1.1rem 0.5rem;
  border-radius: 1rem;
  font-family: var(--m-font, inherit);
  font-weight: 600;
  font-size: 2.1rem;
  line-height: 1;
  color: var(--m-hero-ink, var(--m-ink));
  background: var(--m-soft);
}

.mock-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem;
  border-radius: 0.8rem;
  background: var(--m-soft);
}

.mock-row i {
  flex: none;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 50%;
  background: var(--m, var(--m-accent));
}

.mock-row b {
  flex: 1;
  height: 0.45rem;
  opacity: 0.6;
}

.mock-tab {
  margin-top: auto;
  height: 2.2rem;
  border-radius: 999px;
  background: var(--m-soft);
  box-shadow: inset 0 0 0 1px var(--m-line, transparent);
}

.soon-phone--ronda {
  --m-frame: #143830;
  --m-bg: #faf4e8;
  --m-ink: #143830;
  --m-soft: #f2eada;
}

.soon-phone--lumbre {
  --m-frame: #0e0e10;
  --m-bg: #e3e3df;
  --m-ink: #0e0e10;
  --m-soft: #d5d5d0;
  --m-accent: #0e0e10;
  --m-line: #c6c6c0;
}

/* The daily spark: two neurons meeting at a synapse, pink only on black */
.mock-spark {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 0.35rem;
  padding: 1.2rem 0.4rem;
  font-size: 1.1rem;
  line-height: 1;
}

.mock-spark b {
  position: relative;
  height: 0.3rem;
  border-radius: 999px;
  background: #0e0e10;
}

.mock-spark b::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  background: inherit;
  transform: translateY(-50%);
}

.mock-spark b:last-child::before {
  right: 0;
  left: auto;
}

.mock-spark span {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  color: #ff3ea5;
  background: #0e0e10;
  box-shadow: 0 0 1.4rem rgba(255, 62, 165, 0.45);
}

.soon-phone--zero {
  --m-frame: #2a0710;
  --m-bg: #620b26;
  --m-ink: #cfe5ff;
  --m-soft: #7c1034;
  --m-accent: #4fe0ae;
  --m-hero-ink: #fff1f4;
  --m-font: "Outfit", sans-serif;
}

.soon-badge {
  position: absolute;
  top: 50%;
  left: 50%;
  padding: 0.6rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--on-accent);
  background: var(--accent);
  box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.45);
  transform: translate(-50%, -50%) rotate(-4deg);
}

@media (prefers-reduced-motion: reduce) {
  .soon-status i {
    animation: none;
  }
}

/* ---------- Key visuals ---------- */

/* Northbridge — MCP connector diagram */
.mcp {
  display: grid;
  grid-template-columns: auto minmax(1rem, 1fr) auto minmax(1rem, 1fr) auto;
  align-items: center;
  width: 100%;
  margin-top: 1rem;
}

.mcp__sources {
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.mcp__sources li {
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--line);
  font-size: 0.7rem;
  font-weight: 500;
  white-space: nowrap;
  background: var(--bg);
}

.mcp__wire {
  position: relative;
  height: 1px;
  border-top: 1px dashed var(--accent);
}

.mcp__wire::after {
  content: "";
  position: absolute;
  top: -4px;
  right: -1px;
  border: 4px solid transparent;
  border-left-color: var(--accent);
  border-right: 0;
}

.mcp__hub {
  display: grid;
  place-items: center;
  width: clamp(3.5rem, 6vw, 4.75rem);
  aspect-ratio: 1;
  border: 1px solid var(--accent);
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--ink);
  box-shadow: 0 0 0 6px var(--card), 0 0 0 7px var(--line);
}

.mcp__target {
  display: grid;
  gap: 0.3rem;
  padding: 0.8rem 0.9rem;
  color: #f3eee3;
  background: var(--ink);
}

.mcp__target strong {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1;
}

.mcp__target small {
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.stamp {
  position: absolute;
  right: 4%;
  bottom: 2%;
  display: grid;
  place-items: center;
  align-content: center;
  width: 5.2rem;
  height: 5.2rem;
  border: 2px solid var(--accent-3, #7a1f2b);
  border-radius: 50%;
  color: var(--accent-3, #7a1f2b);
  text-align: center;
  transform: rotate(-12deg);
  opacity: 0.85;
}

.stamp strong {
  font-family: var(--font-display);
  font-size: 1.4rem;
  line-height: 1;
}

.stamp span {
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* Cleatus — browser frame */
.browser {
  width: min(100%, 30rem);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: #ffffff;
  box-shadow: 0 30px 60px -25px rgba(36, 54, 101, 0.45), 0 0 0 6px rgba(59, 130, 246, 0.1);
  transform: rotate(-2deg);
}

.browser__bar {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 0.75rem;
  font-size: 0.62rem;
  color: #6b7280;
  background: #f3f4f6;
}

.browser__bar i {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #d1d5db;
}

.browser__bar i:nth-child(1) {
  background: #ef4444;
}

.browser__bar i:nth-child(2) {
  background: #eab308;
}

.browser__bar i:nth-child(3) {
  background: #22c55e;
}

.browser__bar span {
  margin-left: 0.5rem;
}

.browser img {
  display: block;
  width: 100%;
  max-height: 30vh;
  object-fit: cover;
  object-position: top;
}

/* Abaco — data grid mock + sticker */
.grid-mock {
  display: grid;
  gap: 1px;
  width: min(100%, 28rem);
  margin-top: 1rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--line);
}

.grid-mock__row {
  display: grid;
  grid-template-columns: 0.6fr 1.4fr 1fr 1fr 0.8fr;
  gap: 1px;
}

.grid-mock__row span {
  position: relative;
  height: clamp(1.4rem, 3.6vh, 2rem);
  background: var(--card);
}

.grid-mock__row span::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0.5rem;
  width: var(--w, 55%);
  height: 0.3rem;
  border-radius: 999px;
  background: var(--line);
  transform: translateY(-50%);
}

.grid-mock__row span:nth-child(2)::after {
  --w: 75%;
}

.grid-mock__row span:nth-child(4)::after {
  --w: 40%;
}

.grid-mock__row--head span {
  background: var(--ink);
}

.grid-mock__row--head span::after {
  background: rgba(255, 255, 255, 0.4);
}

.grid-mock__row.is-selected span {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
}

.grid-mock__row.is-selected span::after {
  background: var(--accent);
}

.sticker {
  position: absolute;
  right: 2%;
  bottom: 4%;
  display: grid;
  place-items: center;
  align-content: center;
  width: 6.2rem;
  height: 6.2rem;
  border-radius: 50%;
  color: #ffffff;
  text-align: center;
  background: var(--accent);
  box-shadow: 0 12px 24px -10px rgba(0, 0, 0, 0.4);
  transform: rotate(10deg);
}

.sticker strong {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 600;
  line-height: 1;
}

.sticker span {
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Fluent — agent graph */
.agent-graph {
  display: grid;
  justify-items: center;
  gap: 0;
  width: 100%;
}

.node {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  white-space: nowrap;
  background: #141a26;
}

.node--core {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 30px -6px rgba(16, 185, 129, 0.55);
}

.node--out {
  color: var(--on-accent);
  background: var(--accent);
  border-color: var(--accent);
}

.edge {
  width: 1px;
  height: clamp(0.8rem, 2.6vh, 1.4rem);
  background: linear-gradient(var(--accent), transparent);
}

.agent-graph__tools {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}

/* Photos inside boards */
.art-photo {
  width: min(78%, 22rem);
  padding: 0.5rem 0.5rem 1.9rem;
}

.art-photo img {
  aspect-ratio: 4 / 3;
  max-height: 30vh;
}

[data-theme="cluster"] .art-photo img {
  object-fit: contain;
  background: #ffffff;
}

/* AutoBid — SHAP card */
.shap {
  position: absolute;
  right: 0;
  bottom: 4%;
  display: grid;
  gap: 0.4rem;
  width: min(48%, 13rem);
  padding: 0.85rem;
  border: 1px solid var(--line);
  background: #fffaf2;
  box-shadow: 0 16px 30px -18px rgba(0, 0, 0, 0.5);
  transform: rotate(2deg);
}

.shap__title {
  font-size: 0.56rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.shap__row {
  display: grid;
  grid-template-columns: 4.2rem 1fr;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.62rem;
}

.shap__row i {
  width: var(--w);
  height: 0.4rem;
  background: var(--accent);
}

/* RAG — photo + chat bubbles */
.rag-visual {
  position: relative;
  width: min(88%, 26rem);
}

.rag-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  max-height: 32vh;
  object-fit: cover;
  border-radius: var(--radius);
}

.bubble {
  position: absolute;
  max-width: 70%;
  padding: 0.65rem 0.9rem;
  border-radius: 1.1rem;
  font-size: 0.72rem;
  font-weight: 500;
  line-height: 1.35;
  box-shadow: 0 12px 24px -12px rgba(27, 19, 64, 0.55);
}

.bubble--user {
  top: -0.9rem;
  left: -1.2rem;
  border-bottom-left-radius: 0.25rem;
  color: #ffffff;
  background: #6a45ff;
}

.bubble--bot {
  right: -1rem;
  bottom: -0.9rem;
  border-bottom-right-radius: 0.25rem;
  background: #ffffff;
}

.typing {
  display: inline-flex;
  gap: 0.25rem;
}

.typing i {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: #ff7ac6;
  animation: typing 1.2s infinite ease-in-out;
}

.typing i:nth-child(2) {
  animation-delay: 0.15s;
}

.typing i:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes typing {
  0%,
  80%,
  100% {
    transform: translateY(0);
    opacity: 0.4;
  }

  40% {
    transform: translateY(-0.25rem);
    opacity: 1;
  }
}

/* Absence — handwritten note */
.art-note {
  position: absolute;
  right: 2%;
  bottom: 6%;
  max-width: 11rem;
  font-size: 1.5rem;
  color: #2747ff;
  transform: rotate(-7deg);
}

/* Crypto — chart + terminal */
.art-chart {
  display: block;
  width: 100%;
  height: 100%;
  max-height: 32vh;
  object-fit: cover;
  border-radius: var(--radius);
  opacity: 0.85;
}

.terminal {
  position: absolute;
  right: -0.5rem;
  bottom: -0.5rem;
  width: min(86%, 24rem);
  overflow: hidden;
  border: 1px solid rgba(247, 147, 26, 0.4);
  border-radius: var(--radius);
  background: rgba(6, 7, 7, 0.94);
  box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.9);
}

.terminal__bar {
  display: block;
  padding: 0.4rem 0.7rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--muted);
}

.terminal code {
  display: block;
  padding: 0.7rem;
  font-family: var(--font-mono);
  font-size: clamp(0.56rem, 0.7vw, 0.68rem);
  line-height: 1.6;
  white-space: pre;
  color: var(--ink);
}

.terminal b {
  color: var(--accent);
}

.terminal em {
  font-style: normal;
  color: #22c55e;
}

/* ==========================================================================
   Sheet slides (skills + background)
   ========================================================================== */
.sheet__body {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: safe center;
  gap: clamp(1.5rem, 4.5vh, 3rem);
  /* Fallback for small laptops: the sheet scrolls before the chapter changes */
  overflow-y: auto;
  scrollbar-width: none;
}

.sheet__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem 3rem;
  padding-bottom: clamp(1rem, 2.6vh, 1.6rem);
  border-bottom: 1px solid var(--line);
}

.sheet__head .kicker {
  order: 2;
  margin: 0;
}

.sheet__head .display {
  --display-size: clamp(3rem, min(7vw, 13vh), 6.5rem);
}

.sheet__cols {
  display: grid;
  gap: clamp(1.25rem, 3vw, 3rem);
}

.sheet__cols--5 {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.sheet__cols--3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.sheet__col h3 {
  margin: 0 0 0.9rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.8vw, 1.7rem);
  font-weight: 400;
  line-height: 1.05;
}

.sheet__col ul {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sheet__col li {
  font-size: clamp(0.78rem, 0.25vw + 0.66rem, 0.9rem);
  line-height: 1.4;
}

.entries {
  display: grid;
  gap: clamp(0.8rem, 2.2vh, 1.25rem);
  margin: 0;
}

.entries dt {
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.35;
}

.entries dd {
  margin: 0.15rem 0 0;
  font-size: 0.8rem;
  line-height: 1.4;
  color: var(--muted);
}

.entries__period {
  font-family: var(--font-serif);
  font-size: 0.95rem !important;
  font-style: italic;
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact__body {
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
}

.contact__note {
  margin-top: 1.25rem;
  transform: rotate(-3deg);
  transform-origin: left;
}

.contact-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.contact-list li {
  border-bottom: 1px solid var(--line);
}

.contact-list a {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  padding: clamp(1rem, 2.6vh, 1.5rem) 0.25rem;
  text-decoration: none;
  transition: padding 0.35s var(--ease);
}

.contact-list a:hover {
  padding-left: 1rem;
}

.contact-list__value {
  overflow: hidden;
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 1.8vw, 1.7rem);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.contact-list i {
  font-size: 0.8rem;
  transition: transform 0.35s var(--ease);
}

.contact-list a:hover i {
  transform: translateX(0.3rem) rotate(-45deg);
}

/* ==========================================================================
   Chat widget (RAG demo)
   ========================================================================== */
.chat-widget-container {
  position: fixed;
  right: 1.25rem;
  bottom: 1.1rem;
  z-index: 80;
}

.chat-toggle-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.1rem;
  height: 3.1rem;
  border: 0;
  border-radius: 50%;
  font-size: 1.15rem;
  color: var(--chrome-bg);
  background: var(--chrome-ink);
  box-shadow: 0 10px 24px -8px rgba(0, 0, 0, 0.45);
  cursor: pointer;
  transition: transform 0.3s var(--ease), background-color var(--theme-dur), color var(--theme-dur);
}

.chat-toggle-button:hover {
  transform: scale(1.06);
}

.chat-toggle-button .fa-times,
.chat-widget-container.open .chat-toggle-button .fa-comments {
  display: none;
}

.chat-widget-container.open .chat-toggle-button .fa-times {
  display: inline-block;
}

.chat-widget {
  position: absolute;
  right: 0;
  bottom: 4rem;
  display: flex;
  flex-direction: column;
  width: 350px;
  max-width: calc(100vw - 2.5rem);
  height: 480px;
  max-height: 70vh;
  overflow: hidden;
  border: 1px solid rgba(20, 20, 20, 0.12);
  border-radius: 1.25rem;
  font-family: var(--font-sans);
  color: #141414;
  background: #f6f3ee;
  box-shadow: 0 24px 50px -20px rgba(0, 0, 0, 0.55);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.95);
  transform-origin: bottom right;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
}

.chat-widget-container.open .chat-widget {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.chat-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(20, 20, 20, 0.1);
}

.chat-header h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 400;
}

.chat-messages {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  gap: 0.75rem;
  padding: 1.25rem;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.chat-message {
  max-width: 85%;
  padding: 0.7rem 0.95rem;
  border-radius: 1rem;
  font-size: 0.9rem;
  line-height: 1.5;
  word-wrap: break-word;
}

.chat-message.user {
  align-self: flex-end;
  border-bottom-right-radius: 4px;
  color: #ffffff;
  background: #141414;
}

.chat-message.bot {
  align-self: flex-start;
  border-bottom-left-radius: 4px;
  background: #e6e1d8;
}

.chat-input-area {
  display: flex;
  gap: 0.6rem;
  padding: 0.9rem;
  border-top: 1px solid rgba(20, 20, 20, 0.1);
}

#chat-input {
  flex-grow: 1;
  min-width: 0;
  padding: 0.7rem 1rem;
  border: 1px solid rgba(20, 20, 20, 0.18);
  border-radius: 999px;
  font: inherit;
  font-size: 0.9rem;
  color: #141414;
  background: #ffffff;
}

#chat-input:focus {
  outline: none;
  border-color: #141414;
}

.chat-send-button {
  display: grid;
  flex-shrink: 0;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  border: 0;
  border-radius: 50%;
  color: #ffffff;
  background: #141414;
  cursor: pointer;
}

@keyframes loading-dots {
  0%,
  20% {
    content: ".";
  }

  40% {
    content: "..";
  }

  60%,
  100% {
    content: "...";
  }
}

.chat-message.bot.loading::after {
  content: ".";
  display: inline-block;
  animation: loading-dots 1.5s infinite steps(3, end);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

/* Short laptop screens: tighten vertical rhythm */
@media screen and (max-height: 760px) and (min-width: 861px) {
  :root {
    --header-h: 3.5rem;
    --foot-h: 3.9rem;
  }

  .points li {
    font-size: 0.78rem;
    line-height: 1.45;
  }

  .specs__aa {
    font-size: calc(2rem * var(--display-scale));
  }

  .swatches {
    padding-bottom: 0;
  }

  .swatches i {
    width: 1.6rem;
    height: 1.6rem;
  }

  .swatches i::after {
    display: none;
  }

  .board {
    gap: 0.6rem;
    padding: 0.9rem 1.1rem;
  }

  .mcp__sources li {
    padding: 0.35rem 0.6rem;
  }
}

@media screen and (max-width: 1180px) {
  .sheet__cols--5 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .h-hint {
    display: none;
  }
}

@media screen and (max-width: 1024px) {
  .site-header__brand small {
    display: none;
  }

  .stamp,
  .sticker {
    transform: rotate(8deg) scale(0.85);
  }
}

@media screen and (max-width: 860px) {
  :root {
    --header-h: 3.5rem;
    --foot-h: 4.5rem;
  }

  .site-nav,
  .chapter-dots,
  .slide__foot {
    display: none;
  }

  .mobile-only {
    display: inline-grid;
  }

  .site-header {
    gap: 0.75rem;
  }

  .site-header__brand {
    min-width: 0;
    overflow: hidden;
  }

  .site-header__mark {
    overflow: hidden;
    font-size: 1.15rem;
    text-overflow: ellipsis;
  }

  .header-actions {
    margin-left: auto;
  }

  .slide {
    padding-top: calc(var(--header-h) + 0.5rem);
  }

  /* Stacked layout; long slides scroll inside themselves */
  .slide__body,
  .case__body,
  .intro__body,
  .about__body,
  .contact__body {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 1.5rem;
    padding-bottom: 1.5rem;
    overflow-y: auto;
    scrollbar-width: none;
    /* Fade the bottom edge so it's clear the slide continues */
    -webkit-mask-image: linear-gradient(to bottom, #000 calc(100% - 2.5rem), transparent);
    mask-image: linear-gradient(to bottom, #000 calc(100% - 2.5rem), transparent);
  }

  .slide__body::-webkit-scrollbar {
    display: none;
  }

  .intro__body,
  .contact__body {
    justify-content: center;
  }

  .case__visual {
    order: -1;
    flex: none;
  }

  .board {
    height: auto;
    grid-template-rows: auto auto;
    padding: 0.9rem;
  }

  .board .specs {
    display: none;
  }

  .board__art {
    height: 11rem;
  }

  .board__caption,
  .stamp,
  .sticker,
  .shap,
  .art-note,
  .terminal {
    display: none;
  }

  .mcp {
    margin-top: 0;
    transform: scale(0.85);
  }

  .art-photo img,
  .rag-visual img,
  .art-chart,
  .browser img {
    max-height: 8.5rem;
  }

  .rag-visual .bubble--bot {
    display: none;
  }

  .grid-mock {
    margin-top: 0;
  }

  .grid-mock__row:nth-child(n + 5) {
    display: none;
  }

  .brandmark__word {
    font-size: 1.2rem;
  }

  .about__visual {
    flex: none;
    margin-top: 1.5rem;
  }

  .polaroid--lg {
    width: min(12rem, 48vw);
  }

  .paper-word {
    font-size: 1.35rem;
  }

  .paper-word--1 {
    left: -30%;
  }

  .paper-word--2 {
    right: -32%;
  }

  .sheet__cols--5,
  .sheet__cols--3 {
    grid-template-columns: 1fr 1fr;
  }

  .sheet__body {
    justify-content: flex-start;
  }

  .h-controls {
    bottom: 0.9rem;
  }

  .chat-widget-container {
    bottom: 0.9rem;
    right: 1rem;
  }
}

@media screen and (max-width: 640px) {
  .chat-toggle-button {
    width: 2.6rem;
    height: 2.6rem;
    font-size: 1rem;
  }

  .h-controls {
    left: var(--gutter);
    transform: none;
  }

  .index__item {
    grid-template-columns: 1.75rem minmax(0, 1fr);
    grid-template-areas:
      "num name"
      "num role";
  }

  .index--compact .index__item {
    grid-template-areas:
      "num name"
      "num role";
  }

  .index--compact .index__role {
    text-align: left;
  }

  .index__year {
    display: none;
  }

  .facts {
    grid-template-columns: 1fr;
  }

  .contact-list a {
    grid-template-columns: 4rem minmax(0, 1fr) auto;
  }

  .sheet__cols--3 {
    grid-template-columns: 1fr;
  }

  .sheet__cols--3 .sheet__col:last-child h3 {
    display: none;
  }

  /* Cover binder turns portrait: dark page on top, light page below */
  .binder {
    width: min(100%, calc((100dvh - var(--header-h) - var(--foot-h) - 1rem) * 0.62));
    aspect-ratio: 0.62;
    padding: 3.5%;
    border-radius: 5cqw;
  }

  .binder__pages {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr;
  }

  .binder__page--left {
    border-radius: 3cqw 3cqw 0 0;
  }

  .binder__page--right {
    border-radius: 0 0 3cqw 3cqw;
  }

  .binder__rings {
    top: 50%;
    bottom: auto;
    left: 6%;
    right: 6%;
    flex-direction: row;
    width: auto;
    height: 9cqw;
    transform: translateY(-50%);
  }

  .binder__rings span {
    width: 2.4cqw;
    height: auto;
    margin: 0 5cqw 0 0;
  }

  .binder__rings span:nth-child(3) {
    margin-right: auto;
  }

  .binder__title {
    top: 0;
    bottom: 0;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr;
    font-size: 33cqw;
  }

  .binder__port {
    align-self: end;
    padding: 0 0 0.04em;
    text-align: center;
  }

  .binder__folio {
    align-self: start;
    padding: 0.06em 0 0;
    text-align: center;
  }

  .binder__owner {
    top: 6%;
    left: 7%;
    font-size: 2.4cqw;
  }

  .binder__pill {
    top: 25%;
    left: 8%;
    font-size: 4cqw;
  }

  .binder__role {
    font-size: 3.6cqw;
  }

  .binder__role--1 {
    top: 33%;
    left: 22%;
  }

  .binder__role--2 {
    top: 38%;
    left: auto;
    right: 8%;
  }

  .binder__card,
  .binder__tabs {
    display: none;
  }

  .binder__photo {
    top: auto;
    right: auto;
    bottom: 7%;
    left: 8%;
    width: 25cqw;
    padding: 1.2cqw 1.2cqw 5cqw;
  }

  .binder__photo figcaption {
    font-size: 4cqw;
  }

  .binder__photo .clip {
    width: 3cqw;
    height: 7cqw;
    top: -3cqw;
  }

  .binder__note {
    right: 7%;
    bottom: 9%;
    max-width: 38cqw;
    font-size: 4.6cqw;
  }
}

@media (prefers-reduced-motion: reduce) {
  html,
  .h-track {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}