/* ============================================================
   Uira Labs — Apple-Inspired Design System
   Clean, confident, typographically-driven.
   ============================================================ */

/* --- Design Tokens --- */
:root {
  /* Palette: cool neutrals + gold brand accent */
  --color-bg: #fbfbfd;
  --color-bg-alt: #f5f5f7;
  --color-bg-dark: #1d1d1f;
  --color-surface: #ffffff;
  --color-text: #1d1d1f;
  --color-text-secondary: #6e6e73;
  --color-text-tertiary: #86868b;
  --color-accent: #bf8b2e;
  --color-accent-soft: rgba(191, 139, 46, 0.12);
  --color-link: #0066cc;
  --color-link-hover: #0071e3;
  --color-border: rgba(0, 0, 0, 0.08);
  --color-border-strong: rgba(0, 0, 0, 0.16);
  --color-focus: rgba(0, 102, 204, 0.5);

  /* Typography */
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-brand: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --fs-hero: clamp(2.4rem, 4.5vw, 3.5rem);
  --fs-display: clamp(1.6rem, 3vw, 2.4rem);
  --fs-title: clamp(1.25rem, 2vw, 1.7rem);
  --fs-body-large: clamp(1.05rem, 1.5vw, 1.3125rem);
  --fs-body: 1.0625rem;
  --fs-small: 0.9375rem;
  --fs-caption: 0.8125rem;
  --fs-label: 0.6875rem;

  /* Spacing */
  --section-gap: clamp(80px, 10vw, 140px);
  --content-max: 720px;
  --wide-max: 980px;
  --page-max: 1080px;
  --full-max: 1200px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration: 0.6s;
  --duration-fast: 0.3s;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scrollbar-gutter: stable;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@supports not (scrollbar-gutter: stable) {
  html {
    overflow-y: scroll;
  }
}

body {
  font-family: var(--font);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
}

h1,
h2,
h3 {
  font-family: var(--font);
  line-height: 1.1;
  margin: 0;
  letter-spacing: -0.025em;
  font-weight: 600;
}

h1 {
  font-weight: 700;
}

p {
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

[id] {
  scroll-margin-top: 6.5rem;
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  left: 1rem;
  top: 0.75rem;
  z-index: 200;
  padding: 0.65rem 0.9rem;
  border-radius: 999px;
  background: var(--color-bg-dark);
  color: #fff;
  font-size: var(--fs-small);
  font-weight: 600;
  transform: translateY(-180%);
  transition: transform var(--duration-fast) var(--ease);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

/* --- Focus States --- */
a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.nav-links a:focus-visible,
.project-subnav a:focus-visible,
.project-doc-card:focus-visible,
.project-author-chip:focus-visible,
.builder-card-link:focus-visible,
.resume-course-link:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: 8px;
}

/* --- Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: rgba(251, 251, 253, 0.72);
  border-bottom: 1px solid var(--color-border);
}

.nav-wrap {
  max-width: var(--full-max);
  margin: 0 auto;
  padding: 0.6rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 600;
  font-size: var(--fs-small);
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-size: var(--fs-caption);
  font-weight: 400;
  color: var(--color-text-secondary);
  transition:
    color var(--duration-fast) var(--ease),
    background var(--duration-fast) var(--ease);
}

.nav-links a:hover {
  color: var(--color-text);
}

.nav-links a[aria-current="page"] {
  color: var(--color-text);
  font-weight: 500;
  background: rgba(0, 0, 0, 0.05);
}

/* --- Layout Containers --- */
main {
  width: 100%;
}

.home-main,
.project-main,
.about-main,
.builders-main,
.resume-main,
.origin-main {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.flow {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* --- Common Typography --- */
.kicker,
.project-kicker,
.about-main .about-hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-size: var(--fs-label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
}

.kicker::before,
.project-kicker::before,
.about-main .about-hero-label::before {
  content: "";
  width: 24px;
  height: 1.5px;
  background: var(--color-accent);
  border-radius: 1px;
}

.home-label,
.about-main .about-label,
.project-section-kicker,
.builder-role,
.resume-label {
  margin: 0;
  font-size: var(--fs-label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-tertiary);
}

.lead {
  font-size: var(--fs-body-large);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.section-title {
  font-size: var(--fs-display);
  margin-bottom: 1rem;
  color: var(--color-text);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: 980px;
  padding: 0.75rem 1.5rem;
  border: none;
  background: var(--color-bg-dark);
  color: #fff;
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: -0.005em;
  cursor: pointer;
  transition:
    background var(--duration-fast) var(--ease),
    transform var(--duration-fast) var(--ease),
    opacity var(--duration-fast) var(--ease);
}

.btn:hover {
  background: #000;
  transform: scale(1.02);
}

.btn.primary {
  background: var(--color-bg-dark);
  color: #fff;
}

.actions {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.actions .btn:not(.primary) {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}

.actions .btn:not(.primary):hover {
  background: rgba(0, 0, 0, 0.04);
  transform: scale(1.02);
}

/* --- Cards (generic) --- */
.card {
  padding: 1.5rem;
  border-radius: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition:
    border-color var(--duration-fast) var(--ease),
    box-shadow var(--duration-fast) var(--ease);
}

.card:hover {
  border-color: var(--color-border-strong);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.card p {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  line-height: 1.55;
}

.grid {
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

/* --- Panel --- */
.panel {
  border: 1px solid var(--color-border);
  border-radius: 24px;
  background: var(--color-surface);
  padding: 2rem;
}

/* ============================================================
   HOMEPAGE
   ============================================================ */
.home-main {
  padding-top: var(--section-gap);
  padding-bottom: var(--section-gap);
  display: grid;
  gap: var(--section-gap);
}

.home-hero {
  text-align: center;
  padding: 0 var(--gutter);
  display: flex;
  flex-direction: column;
  align-items: center;
  border: none;
  border-radius: 0;
  background: none;
  box-shadow: none;
}

.home-hero-copy {
  max-width: var(--content-max);
}

.home-hero .kicker {
  margin-bottom: 1.25rem;
}

.home-hero h1 {
  font-size: var(--fs-hero);
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin: 0 0 1.25rem;
  color: var(--color-text);
  font-weight: 700;
}

.home-hero-lead {
  font-size: var(--fs-body-large);
  line-height: 1.5;
  color: var(--color-text-secondary);
  margin: 0;
  font-weight: 500;
}

.home-hero-sub {
  margin: 0.75rem 0 0;
  font-size: var(--fs-body);
  color: var(--color-text-tertiary);
}

.home-hero-mark {
  display: none;
}

/* Audience row */
.home-audience {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  max-width: var(--wide-max);
  margin: 0 auto;
}

.home-audience article {
  text-align: center;
  padding: 2rem 1.5rem;
  border-radius: 24px;
  background: var(--color-bg-alt);
  border: none;
}

.home-audience h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  letter-spacing: -0.015em;
}

.home-audience p {
  margin: 0;
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* Content blocks */
.home-block {
  max-width: var(--content-max);
  margin: 0 auto;
  border: none;
  border-radius: 0;
  background: none;
  box-shadow: none;
  padding: 0;
}

.home-block h2 {
  font-size: var(--fs-display);
  margin: 0.75rem 0 1.25rem;
  letter-spacing: -0.03em;
}

.home-block p {
  margin: 0 0 1rem;
  font-size: var(--fs-body);
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.home-block p:last-child {
  margin-bottom: 0;
}

.home-build-grid {
  margin: 1.5rem 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

/* ============================================================
   PROJECTS PAGE
   ============================================================ */
.project-main {
  padding-top: clamp(3rem, 5vw, 5rem);
  padding-bottom: var(--section-gap);
  display: grid;
  gap: clamp(2rem, 4vw, 3.5rem);
}

.project-hero,
.contact-hero,
.about-hero,
.builders-hero {
  padding: clamp(2rem, 5vw, 3.5rem);
  border-radius: 28px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  box-shadow: none;
}

.project-hero h1,
.project-spotlight h1 {
  font-size: var(--fs-display);
  letter-spacing: -0.03em;
  margin: 0.75rem 0 1rem;
  color: var(--color-text);
  line-height: 1.08;
}

.project-lead {
  font-size: var(--fs-body-large);
  line-height: 1.55;
  color: var(--color-text-secondary);
  margin: 0;
}

.project-copy {
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin: 0;
}

.project-hero-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.project-hero-art {
  margin: 1.5rem 0 0;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.project-hero-art img {
  display: block;
  width: 100%;
  height: auto;
}

/* Project cards */
.project-card,
.project-spotlight {
  border: 1px solid var(--color-border);
  border-radius: 28px;
  background: var(--color-surface);
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
  box-shadow: none;
}

.project-spotlight {
  background: var(--color-bg-alt);
}

.project-card h2,
.project-spotlight h2 {
  font-size: var(--fs-title);
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.project-card h3,
.project-spotlight h3,
.project-doc-card h3,
.project-faq-list h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.project-card p,
.project-spotlight p,
.project-doc-card p,
.project-faq-list p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  line-height: 1.55;
}

.project-card p + p,
.project-spotlight p + p {
  margin-top: 0.75rem;
}

.project-card p + .project-list,
.project-card p + .project-meta-list,
.project-card h3 + .project-list,
.project-card h3 + .project-meta-list,
.project-list + p,
.project-meta-list + p {
  margin-top: 0.85rem;
}

.project-section-kicker {
  margin: 0 0 0.5rem;
}

.project-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.project-main .btn {
  min-height: 44px;
  padding: 0.6rem 1.25rem;
}

/* Showcase cards */
.project-showcase-list {
  display: grid;
  gap: 1.25rem;
}

.project-showcase-card {
  border-radius: 28px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: clamp(1.5rem, 3vw, 2rem);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: center;
  color: inherit;
  text-decoration: none;
  transition:
    border-color var(--duration-fast) var(--ease),
    box-shadow var(--duration-fast) var(--ease),
    transform var(--duration-fast) var(--ease);
}

a.project-showcase-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.project-showcase-copy {
  min-width: 0;
  display: grid;
  gap: 0.75rem;
}

.project-showcase-eyebrow {
  margin: 0;
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.project-showcase-media {
  margin: 0;
  border-radius: 20px;
  overflow: hidden;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem;
}

.project-showcase-media-warm {
  background: var(--color-bg-alt);
}

.project-showcase-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  object-fit: cover;
}

/* Subnav */
.project-subnav {
  border-radius: 980px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 0.3rem;
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.2rem;
}

.project-subnav a {
  border-radius: 980px;
  padding: 0.45rem 0.9rem;
  font-size: var(--fs-caption);
  color: var(--color-text-secondary);
  border: 1px solid transparent;
  transition:
    background var(--duration-fast) var(--ease),
    color var(--duration-fast) var(--ease);
}

.project-subnav a:hover {
  color: var(--color-text);
  background: var(--color-bg-alt);
}

.project-subnav a[aria-current="page"] {
  color: var(--color-text);
  background: var(--color-bg-alt);
  font-weight: 500;
}

/* Project detail grids */
.project-grid-3,
.project-doc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.project-grid-3 article,
.project-doc-card {
  border-radius: 20px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  padding: 1.5rem;
  display: grid;
  gap: 0.5rem;
  color: inherit;
  text-decoration: none;
  transition:
    border-color var(--duration-fast) var(--ease),
    box-shadow var(--duration-fast) var(--ease),
    transform var(--duration-fast) var(--ease);
}

.project-doc-grid {
  grid-template-columns: repeat(2, 1fr);
}

.project-doc-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.project-feature-grid,
.project-detail-grid {
  margin-top: 1.25rem;
}

/* Project feature hero (split layout) */
.project-feature-hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.5rem;
  align-items: stretch;
}

.project-hero-copy {
  min-width: 0;
}

.project-hero-copy .project-copy {
  max-width: 60ch;
}

.project-hero-side {
  display: grid;
}

.project-hero-panel {
  border-radius: 24px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-dark);
  padding: 0;
  overflow: hidden;
}

.project-hero-photo {
  overflow: hidden;
  padding: 0;
  min-height: 100%;
  position: relative;
}

.project-hero-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.08));
  pointer-events: none;
}

.project-hero-photo img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 400px;
  object-fit: cover;
  object-position: center top;
}

/* Author chip */
.project-author-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  border-radius: 980px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 0.3rem 0.7rem 0.3rem 0.3rem;
  color: inherit;
  text-decoration: none;
  transition:
    border-color var(--duration-fast) var(--ease),
    box-shadow var(--duration-fast) var(--ease);
}

.project-spotlight .project-hero-head {
  margin-bottom: 0.65rem;
}

.project-spotlight .project-hero-head .project-section-kicker {
  margin-bottom: 0;
}

.project-author-chip:hover {
  border-color: var(--color-border-strong);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.project-author-chip img {
  width: 40px;
  height: 40px;
  border-radius: 980px;
  object-fit: cover;
  object-position: center 22%;
  border: 1px solid var(--color-border);
}

.project-author-copy {
  display: grid;
  gap: 0.05rem;
}

.project-author-name {
  font-size: var(--fs-small);
  line-height: 1.2;
  font-weight: 600;
  color: var(--color-text);
}

.project-author-role {
  font-size: var(--fs-caption);
  line-height: 1.2;
  color: var(--color-text-secondary);
}

.project-author-micro {
  margin-top: 0.1rem;
  font-size: 0.6875rem;
  line-height: 1.25;
  color: var(--color-text-tertiary);
}

.game-of-life-hero {
  background:
    radial-gradient(
      circle at top right,
      rgba(248, 198, 112, 0.14),
      transparent 28%
    ),
    radial-gradient(
      circle at bottom left,
      rgba(41, 125, 110, 0.14),
      transparent 34%
    ),
    var(--color-bg-alt);
}

.game-of-life-panel {
  background:
    radial-gradient(circle at top, rgba(248, 198, 112, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(8, 18, 18, 0.98), rgba(13, 22, 24, 0.98));
  padding: clamp(1rem, 2vw, 1.25rem);
  display: grid;
  gap: 1rem;
  position: relative;
  overflow: visible;
}

.game-of-life-stage {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid rgba(232, 224, 214, 0.12);
  background:
    radial-gradient(
      circle at center,
      rgba(248, 198, 112, 0.1),
      transparent 44%
    ),
    linear-gradient(180deg, rgba(11, 20, 21, 0.98), rgba(8, 15, 16, 0.98));
  aspect-ratio: 1 / 1;
  min-height: 320px;
}

.game-of-life-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 35%),
    radial-gradient(circle at center, transparent 45%, rgba(0, 0, 0, 0.26));
  pointer-events: none;
}

.game-of-life-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.game-of-life-panel-copy {
  display: grid;
  gap: 0.35rem;
}

.game-of-life-panel-copy p {
  margin: 0;
}

.game-of-life-pattern-name {
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  line-height: 1.1;
  color: rgba(249, 245, 237, 0.96);
}

.game-of-life-caption {
  font-size: var(--fs-caption);
  color: rgba(245, 239, 230, 0.68);
}

.game-of-life-control-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.game-of-life-control-group .btn {
  border-color: rgba(245, 239, 230, 0.18);
  color: rgba(248, 244, 238, 0.92);
  background: rgba(255, 255, 255, 0.05);
}

.game-of-life-control-group .btn:hover {
  border-color: rgba(248, 198, 112, 0.32);
  background: rgba(248, 198, 112, 0.08);
}

.game-of-life-form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.game-of-life-field,
.game-of-life-stat {
  border-radius: 18px;
  border: 1px solid rgba(232, 224, 214, 0.12);
  background: rgba(255, 255, 255, 0.04);
  padding: 0.85rem 0.95rem;
}

.game-of-life-field {
  display: grid;
  gap: 0.45rem;
  position: relative;
  z-index: 1;
}

.game-of-life-field-checkbox-row {
  grid-column: 1 / -1;
}

.game-of-life-field label,
.game-of-life-checkbox {
  font-size: var(--fs-caption);
  color: rgba(245, 239, 230, 0.76);
}

.game-of-life-select-wrap {
  position: relative;
  display: block;
  width: 100%;
  min-width: 0;
}

.game-of-life-select-wrap::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 1rem;
  width: 0.55rem;
  height: 0.55rem;
  border-right: 2px solid rgba(248, 244, 238, 0.76);
  border-bottom: 2px solid rgba(248, 244, 238, 0.76);
  transform: translateY(-65%) rotate(45deg);
  pointer-events: none;
}

.game-of-life-field select {
  width: 100%;
  display: block;
  min-height: 52px;
  border-radius: 16px;
  border: 1px solid rgba(232, 224, 214, 0.16);
  background: rgba(7, 14, 15, 0.82);
  color: rgba(248, 244, 238, 0.92);
  padding: 0.8rem 2.8rem 0.8rem 0.95rem;
  font: inherit;
  font-size: 1rem;
  line-height: 1.2;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  text-overflow: ellipsis;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.game-of-life-field select:focus-visible {
  outline: 2px solid rgba(248, 198, 112, 0.8);
  outline-offset: 2px;
}

.game-of-life-checkbox {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 100%;
}

.game-of-life-field-checkbox-row .game-of-life-checkbox {
  min-height: 52px;
}

.game-of-life-checkbox input {
  width: 18px;
  height: 18px;
  accent-color: #f8c670;
}

.game-of-life-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.game-of-life-stat {
  display: grid;
  gap: 0.35rem;
}

.game-of-life-stat span {
  font-size: var(--fs-caption);
  color: rgba(245, 239, 230, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.game-of-life-stat strong {
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  line-height: 1;
  color: rgba(249, 245, 237, 0.96);
}

.game-of-life-note {
  border-radius: 22px;
  border: 1px solid var(--color-border);
  background: linear-gradient(
    180deg,
    rgba(248, 198, 112, 0.08),
    rgba(255, 255, 255, 0)
  );
  padding: 1.15rem 1.2rem;
  margin-top: 1.25rem;
}

.game-of-life-pattern-card {
  position: relative;
  overflow: hidden;
}

.game-of-life-pattern-preview {
  position: relative;
  border-radius: 18px;
  border: 1px solid rgba(232, 224, 214, 0.12);
  background:
    radial-gradient(circle at top, rgba(248, 198, 112, 0.1), transparent 38%),
    linear-gradient(180deg, rgba(11, 20, 21, 0.98), rgba(8, 15, 16, 0.98));
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.game-of-life-pattern-preview::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 35%),
    radial-gradient(circle at center, transparent 46%, rgba(0, 0, 0, 0.18));
  pointer-events: none;
}

.game-of-life-pattern-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.game-of-life-pattern-card::after {
  content: "";
  position: absolute;
  inset: auto -18% -45% auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(248, 198, 112, 0.12),
    transparent 72%
  );
  pointer-events: none;
}

.game-of-life-legend {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.35rem;
  font-size: var(--fs-caption);
  color: var(--color-text-tertiary);
}

.game-of-life-legend-swatch {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: linear-gradient(180deg, #f8c670, #f2845c);
  box-shadow: 0 0 12px rgba(248, 198, 112, 0.45);
}

/* ── Editor: shell & layout ── */
.editor-shell {
  padding: clamp(1rem, 2.5vw, 1.5rem);
}

.editor-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 1.25rem;
  align-items: start;
}

.editor-main {
  min-width: 0;
  display: grid;
  gap: 0.65rem;
}

.editor-intro h1 {
  margin: 0.35rem 0 0;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  letter-spacing: -0.03em;
}

.editor-intro-lead {
  margin: 0.65rem 0 0;
  max-width: 44rem;
}

.editor-observatory-toolbar {
  display: grid;
  gap: 0.65rem;
}

/* ── Editor: status bar ── */
.editor-status-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
}

.editor-board-msg {
  margin: 0;
  flex: 1 1 260px;
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  line-height: 1.5;
}

.editor-status-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.editor-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  font-size: var(--fs-caption);
  line-height: 1.3;
  white-space: nowrap;
}

.editor-pill-label {
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.625rem;
}

.editor-pill strong {
  color: var(--color-text);
  font-weight: 600;
  font-size: var(--fs-caption);
}

/* ── Editor: toolbar ── */
.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 16px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
}

.editor-toolbar-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.editor-toolbar-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
  margin-right: 0.15rem;
}

.editor-tool-btn,
.editor-stamp-btn,
.editor-stamp-link-btn {
  all: unset;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.7rem;
  border-radius: 10px;
  font: inherit;
  font-size: var(--fs-caption);
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition:
    background var(--duration-fast) var(--ease),
    color var(--duration-fast) var(--ease),
    box-shadow var(--duration-fast) var(--ease);
  min-height: 32px;
}

.editor-tool-btn:hover,
.editor-stamp-btn:hover,
.editor-stamp-link-btn:hover {
  background: rgba(0, 0, 0, 0.04);
  color: var(--color-text);
}

.editor-tool-btn:focus-visible,
.editor-stamp-btn:focus-visible,
.editor-stamp-link-btn:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: 10px;
}

.editor-tool-btn[data-active="true"],
.editor-stamp-btn[data-active="true"] {
  background: rgba(248, 198, 112, 0.18);
  color: var(--color-text);
  box-shadow: inset 0 0 0 1px rgba(248, 198, 112, 0.3);
}

.editor-stamp-link-btn {
  color: #2a8b7e;
  box-shadow: inset 0 0 0 1px rgba(42, 139, 126, 0.22);
}

/* ── Editor: canvas ── */
.game-of-life-editor-stage-wrap {
  min-width: 0;
  border-radius: 20px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  background: linear-gradient(
    180deg,
    rgba(8, 18, 18, 0.98),
    rgba(11, 20, 21, 0.98)
  );
  padding: 0.5rem;
  box-shadow: 0 8px 24px rgba(8, 18, 18, 0.06);
}

.game-of-life-editor-stage {
  width: 100%;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(232, 224, 214, 0.1);
  background: linear-gradient(
    180deg,
    rgba(8, 15, 16, 0.98),
    rgba(5, 11, 12, 0.98)
  );
  aspect-ratio: 10 / 7;
  min-height: 380px;
}

.game-of-life-editor-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at center,
    transparent 52%,
    rgba(0, 0, 0, 0.18)
  );
  pointer-events: none;
}

.game-of-life-editor-canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: crosshair;
}

.editor-canvas-hint {
  margin: 0;
  font-size: var(--fs-caption);
  color: var(--color-text-tertiary);
  line-height: 1.5;
}

/* ── Editor: run bar ── */
.editor-run-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}

.editor-run-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.editor-play-btn {
  background: var(--color-bg-dark);
  color: #fff;
  border-color: transparent;
  min-height: 36px;
  padding: 0 1rem;
  font-size: var(--fs-small);
}

.editor-play-btn:hover {
  background: #000;
}

.editor-action-btn {
  all: unset;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 0.7rem;
  border-radius: 980px;
  font: inherit;
  font-size: var(--fs-caption);
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition:
    background var(--duration-fast) var(--ease),
    color var(--duration-fast) var(--ease);
}

.editor-action-btn:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--color-text);
}

.editor-action-btn:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.editor-action-btn:disabled {
  opacity: 0.48;
  cursor: default;
}

.editor-run-sep {
  width: 1px;
  height: 1rem;
  background: var(--color-border-strong);
  margin: 0 0.15rem;
  flex-shrink: 0;
}

.editor-run-settings {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.editor-inline-field {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.editor-inline-field label {
  font-size: var(--fs-caption);
  color: var(--color-text-tertiary);
  white-space: nowrap;
}

.editor-inline-field .game-of-life-select-wrap {
  min-width: 0;
}

.editor-inline-field select {
  min-height: 32px;
  padding: 0.2rem 1.8rem 0.2rem 0.5rem;
  font-size: var(--fs-caption);
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}

.editor-inline-field select:focus-visible {
  outline: 2px solid var(--color-focus);
}

.editor-wrap-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: var(--fs-caption);
  color: var(--color-text-secondary);
  cursor: pointer;
  white-space: nowrap;
}

.editor-wrap-toggle input {
  accent-color: var(--color-accent);
}

.editor-speed-hint {
  margin: 0;
  font-size: var(--fs-caption);
  color: var(--color-text-tertiary);
  line-height: 1.5;
}

.editor-chart-panel {
  display: grid;
  gap: 0.85rem;
  padding: 1rem;
  border-radius: 20px;
  border: 1px solid var(--color-border);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.94),
    rgba(247, 243, 236, 0.92)
  );
}

.editor-chart-header {
  display: flex;
  flex-wrap: wrap;
  align-items: start;
  justify-content: space-between;
  gap: 0.75rem 1rem;
}

.editor-chart-title {
  padding: 0;
  border: 0;
  background: transparent;
}

.editor-chart-copy {
  margin: 0.25rem 0 0;
  max-width: 42rem;
  font-size: var(--fs-caption);
  color: var(--color-text-secondary);
  line-height: 1.55;
}

.editor-chart-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.editor-chart-stat {
  display: grid;
  gap: 0.1rem;
  min-width: 4.8rem;
  padding: 0.55rem 0.7rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.editor-chart-stat-label {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
}

.editor-chart-stat strong {
  font-size: var(--fs-small);
  color: var(--color-text);
}

.editor-chart-shell {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: minmax(220px, auto) auto;
  gap: 0.55rem 0.75rem;
  align-items: stretch;
}

.editor-chart-y-label {
  align-self: center;
  justify-self: center;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
}

.editor-chart-stage {
  position: relative;
  min-height: 220px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(10, 18, 20, 0.12);
  background: linear-gradient(
    180deg,
    rgba(7, 17, 18, 0.98),
    rgba(10, 22, 24, 0.98)
  );
}

.editor-chart-svg {
  display: block;
  width: 100%;
  height: 100%;
}

.editor-chart-grid-line {
  stroke: rgba(255, 255, 255, 0.12);
  stroke-width: 1;
}

.editor-chart-grid-label {
  fill: rgba(229, 235, 236, 0.82);
  font-size: 11px;
  font-family: inherit;
}

.editor-chart-grid-label[data-chart-label-axis="x"] {
  text-anchor: middle;
}

.editor-chart-grid-label[data-chart-label-axis="y"] {
  text-anchor: end;
}

.editor-chart-line {
  fill: none;
  stroke: #8af4d5;
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 10px rgba(138, 244, 213, 0.28));
}

.editor-chart-marker-line {
  stroke: rgba(248, 212, 144, 0.86);
  stroke-width: 1.5;
  stroke-dasharray: 5 4;
}

.editor-chart-marker-dot {
  fill: #f8d490;
  stroke: rgba(8, 21, 22, 0.92);
  stroke-width: 2;
  filter: drop-shadow(0 0 8px rgba(248, 212, 144, 0.4));
}

.editor-chart-empty {
  position: absolute;
  inset: 0;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 1rem;
  text-align: center;
  font-size: var(--fs-caption);
  color: rgba(234, 239, 240, 0.82);
  line-height: 1.55;
  pointer-events: none;
}

.editor-chart-empty[data-visible="false"] {
  display: none;
}

.editor-chart-x-label {
  grid-column: 2;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
}

.editor-chart-summary {
  margin: 0;
  font-size: var(--fs-caption);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.editor-state-summary {
  margin: -0.15rem 0 0;
  font-size: var(--fs-caption);
  color: var(--color-text-secondary);
  line-height: 1.55;
}

.editor-history-controls {
  display: grid;
  gap: 0.55rem;
}

.editor-history-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
}

.editor-history-scrubber {
  width: 100%;
  accent-color: #2a8b7e;
}

.editor-history-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

/* ── Editor: sidebar ── */
.editor-sidebar {
  display: grid;
  gap: 0.85rem;
  min-width: 0;
}

.editor-panel {
  border-radius: 18px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  overflow: hidden;
}

.editor-panel-title {
  margin: 0;
  padding: 0.75rem 1rem;
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.6);
}

.editor-panel-body {
  padding: 0.85rem 1rem;
  display: grid;
  gap: 0.65rem;
}

.editor-panel-body .btn {
  justify-self: start;
}

.editor-rule-desc {
  margin: 0;
  font-size: var(--fs-caption);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.editor-rule-explainer {
  padding: 0.65rem 0.8rem;
  border-radius: 12px;
  background: rgba(191, 139, 46, 0.06);
  border: 1px solid rgba(191, 139, 46, 0.12);
}

.editor-rule-explainer p {
  margin: 0;
  font-size: var(--fs-caption);
  color: var(--color-text-secondary);
  line-height: 1.55;
}

.editor-rule-explainer p + p {
  margin-top: 0.35rem;
}

.editor-field-hint {
  margin: -0.1rem 0 0;
  font-size: var(--fs-caption);
  color: var(--color-text-tertiary);
}

.editor-panel-body .game-of-life-field {
  border-color: var(--color-border);
  background: rgba(255, 255, 255, 0.7);
}

.editor-panel-body .game-of-life-field select {
  border-color: rgba(0, 0, 0, 0.1);
  background: rgba(255, 255, 255, 0.98);
  color: var(--color-text);
}

.editor-panel-body .game-of-life-field label {
  color: var(--color-text-secondary);
}

.editor-panel-body .game-of-life-select-wrap::after {
  border-right-color: rgba(29, 29, 31, 0.4);
  border-bottom-color: rgba(29, 29, 31, 0.4);
}

.game-of-life-editor-rule-input {
  width: 100%;
  min-height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  background: rgba(255, 255, 255, 0.98);
  color: var(--color-text);
  padding: 0.55rem 0.75rem;
  font: inherit;
  font-size: var(--fs-small);
  line-height: 1.2;
  box-shadow: none;
}

.game-of-life-editor-rule-input:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.game-of-life-editor-rule-input[aria-invalid="true"] {
  border-color: rgba(201, 83, 83, 0.7);
}

.game-of-life-editor-rule-feedback {
  min-height: 1.3em;
  margin: 0;
  font-size: var(--fs-caption);
  color: var(--color-text-secondary);
}

.game-of-life-editor-rule-feedback[data-rule-state="error"] {
  color: #c95353;
}

.game-of-life-editor-rule-feedback[data-rule-state="success"] {
  color: #2a8b7e;
}

.editor-experiment-list {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--color-text-secondary);
  font-size: var(--fs-caption);
  line-height: 1.6;
  list-style: disc;
}

.editor-experiment-list li + li {
  margin-top: 0.4rem;
}

.editor-family-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.editor-family-btn {
  all: unset;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  background: rgba(255, 255, 255, 0.74);
  color: var(--color-text-secondary);
  font-size: var(--fs-caption);
  cursor: pointer;
  transition:
    background var(--duration-fast) var(--ease),
    color var(--duration-fast) var(--ease),
    border-color var(--duration-fast) var(--ease);
}

.editor-family-btn[data-active="true"] {
  background: rgba(248, 198, 112, 0.16);
  border-color: rgba(191, 139, 46, 0.25);
  color: var(--color-text);
}

.editor-family-btn:focus-visible,
.editor-pattern-option:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.editor-observatory-results {
  display: grid;
  gap: 0.75rem;
}

.editor-observatory-count {
  margin: 0;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
}

.editor-observatory-empty {
  margin: 0;
  font-size: var(--fs-caption);
  color: var(--color-text-secondary);
}

.editor-pattern-list {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(280px, 340px);
  gap: 0.85rem;
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 0.25rem;
  scroll-snap-type: x proximity;
}

.editor-pattern-option {
  box-sizing: border-box;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  align-content: start;
  padding: 1rem;
  min-height: 100%;
  border-radius: 18px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.76);
  cursor: pointer;
  scroll-snap-align: start;
  transition:
    transform var(--duration-fast) var(--ease),
    border-color var(--duration-fast) var(--ease),
    background var(--duration-fast) var(--ease),
    box-shadow var(--duration-fast) var(--ease);
}

.editor-pattern-option:hover {
  transform: translateY(-1px);
  border-color: rgba(42, 139, 126, 0.28);
}

.editor-pattern-option[data-active="true"] {
  background: linear-gradient(
    180deg,
    rgba(255, 248, 235, 0.98),
    rgba(248, 236, 214, 0.94)
  );
  border-color: rgba(191, 139, 46, 0.22);
  box-shadow: 0 8px 18px rgba(191, 139, 46, 0.08);
}

.editor-pattern-option-preview {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9.5;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(
    180deg,
    rgba(7, 17, 18, 0.98),
    rgba(10, 22, 24, 0.98)
  );
}

.editor-pattern-option-content {
  min-width: 0;
  display: grid;
  gap: 0.45rem;
}

.editor-pattern-option-head {
  display: grid;
  gap: 0.35rem;
}

.editor-pattern-option-title {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--color-text);
}

.editor-pattern-option-summary {
  margin: 0;
  font-size: var(--fs-caption);
  line-height: 1.5;
  color: var(--color-text-secondary);
}

.editor-pattern-eyebrow {
  margin: 0;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(212, 220, 221, 0.72);
}

.editor-pattern-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.editor-pattern-badge {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(248, 212, 144, 0.12);
  border: 1px solid rgba(248, 212, 144, 0.18);
  font-size: 0.6875rem;
  color: rgba(248, 249, 249, 0.88);
}

.editor-pattern-option-focus {
  margin: 0;
  font-size: var(--fs-caption);
  line-height: 1.55;
  color: var(--color-text-secondary);
}

.editor-pattern-option-experiments {
  margin-top: -0.1rem;
}

.editor-pattern-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: auto;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin: 0 0 0.25rem;
  font-size: var(--fs-small);
  color: var(--color-text-tertiary);
}

.breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: underline;
  text-underline-offset: 0.18em;
  text-decoration-color: var(--color-border-strong);
}

.breadcrumb a:hover {
  color: var(--color-text);
}

.breadcrumb-sep {
  color: var(--color-text-tertiary);
}

.breadcrumb [aria-current="page"] {
  color: var(--color-text);
  font-weight: 500;
}

/* Project lists */
.project-meta-list {
  margin: 1rem 0 0;
  padding-left: 1.25rem;
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  list-style: disc;
}

.project-meta-list li + li {
  margin-top: 0.5rem;
}

.project-list {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  line-height: 1.6;
  list-style: disc;
}

.project-list li + li {
  margin-top: 0.5rem;
}

.project-subsection-title {
  margin: 1.25rem 0 0;
}

.longform-defer {
  content-visibility: auto;
  contain-intrinsic-size: 720px;
}

.project-prompt-block {
  margin: 0;
  padding: 1.25rem 1.5rem;
  border-radius: 16px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  color: var(--color-text-secondary);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.55;
  white-space: pre-wrap;
  overflow-x: auto;
}

/* FAQ */
.project-faq-list {
  display: grid;
  gap: 0.75rem;
}

.project-faq-list article {
  border-radius: 16px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  padding: 1.25rem;
  display: grid;
  gap: 0.5rem;
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about-main {
  padding-top: clamp(3rem, 5vw, 5rem);
  padding-bottom: var(--section-gap);
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.about-hero {
  text-align: left;
}

.about-hero h1 {
  font-size: var(--fs-display);
  letter-spacing: -0.03em;
  margin: 0.75rem 0 1rem;
}

.about-hero p {
  margin: 0;
  font-size: var(--fs-body-large);
  color: var(--color-text-secondary);
  line-height: 1.55;
}

.about-panels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.about-panel {
  border-radius: 24px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 1.75rem;
}

.about-panel h2 {
  margin: 0.5rem 0 0.75rem;
  font-size: var(--fs-title);
  letter-spacing: -0.02em;
}

.about-mission h2 {
  font-size: var(--fs-body);
  line-height: 1.6;
  letter-spacing: 0;
  font-weight: 600;
}

.about-panel p:not(.about-label) {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
}

.about-list {
  margin: 0.5rem 0 0;
  padding-left: 1.25rem;
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  list-style: disc;
}

.about-list li + li {
  margin-top: 0.5rem;
}

.about-list strong {
  color: var(--color-text);
}

.about-footnote {
  border-radius: 24px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 1.75rem;
}

.about-footnote p:not(.about-label) {
  margin: 0;
  color: var(--color-text-secondary);
}

.about-footnote .about-label {
  margin-bottom: 0.5rem;
}

.about-builders-cta {
  margin-top: 0;
}

.about-builders-cta h2 {
  margin: 0.5rem 0 0.75rem;
}

.about-builders-cta p {
  margin: 0;
}

/* ============================================================
   BUILDERS PAGE
   ============================================================ */
.builders-main {
  padding-top: clamp(3rem, 5vw, 5rem);
  padding-bottom: var(--section-gap);
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.builders-hero h1 {
  font-size: var(--fs-display);
  letter-spacing: -0.03em;
  margin: 0.65rem 0 0.75rem;
}

.builders-hero p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--fs-body-large);
  line-height: 1.55;
}

.builders-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.builder-card {
  border-radius: 28px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: clamp(1.5rem, 3.5vw, 2.25rem);
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.25rem;
  align-items: start;
}

.builder-photo {
  width: 120px;
  height: 120px;
  border-radius: 24px;
  object-fit: cover;
  object-position: center 14%;
  border: 1px solid var(--color-border);
}

.builder-card-copy {
  min-width: 0;
  display: grid;
  gap: 0.5rem;
}

.builder-card h2 {
  font-size: var(--fs-title);
  letter-spacing: -0.02em;
  margin: 0;
}

.builder-card p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  line-height: 1.55;
}

.builder-card-link {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition:
    border-color var(--duration-fast) var(--ease),
    box-shadow var(--duration-fast) var(--ease),
    transform var(--duration-fast) var(--ease);
}

.builder-card-cta {
  margin-top: 0.25rem;
  width: fit-content;
  border-radius: 980px;
  background: var(--color-bg-dark);
  color: #fff;
  font-size: var(--fs-caption);
  font-weight: 500;
  line-height: 1;
  padding: 0.5rem 0.85rem;
  border: none;
  transition:
    background var(--duration-fast) var(--ease),
    transform var(--duration-fast) var(--ease);
}

.builder-card-cta span {
  display: inline-block;
  transition: transform var(--duration-fast) var(--ease);
}

.builder-card-link:hover {
  border-color: var(--color-border-strong);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.builder-card-link:hover .builder-card-cta {
  background: #000;
}

.builder-card-link:hover .builder-card-cta span {
  transform: translateX(3px);
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.flow {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding-top: clamp(3rem, 5vw, 5rem);
  padding-bottom: var(--section-gap);
}

body[data-page="contact"] .lead {
  max-width: none;
}

.contact-hero {
  text-align: left;
}

.contact-hero .section-title {
  margin: 0.65rem 0 0.75rem;
  font-size: var(--fs-display);
  letter-spacing: -0.03em;
}

.contact-hero .lead {
  margin: 0;
  font-size: var(--fs-body-large);
  color: var(--color-text-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.contact-item {
  padding: 1.75rem;
  border-radius: 24px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.contact-item h2,
.contact-item h3 {
  margin: 0 0 0.75rem;
  font-size: 1.125rem;
  font-weight: 600;
}

#contact-form {
  display: grid;
  gap: 0.75rem;
}

#contact-form label {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  font-weight: 500;
}

#contact-form input,
#contact-form textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--color-border-strong);
  background: var(--color-bg);
  color: var(--color-text);
  font: inherit;
  font-size: var(--fs-small);
  padding: 0.7rem 0.85rem;
  transition:
    border-color var(--duration-fast) var(--ease),
    box-shadow var(--duration-fast) var(--ease);
}

#contact-form input:focus,
#contact-form textarea:focus {
  outline: none;
  border-color: var(--color-link);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.15);
}

#contact-form textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-honeypot {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-form-status {
  min-height: 1.2rem;
  margin: 0.25rem 0 0;
  font-size: var(--fs-small);
}

.contact-form-status.success {
  color: #1a7f37;
  font-weight: 600;
}

.contact-form-status.error {
  color: #cf222e;
  font-weight: 600;
}

.contact-item a {
  color: var(--color-link);
}

.contact-item a:hover {
  color: var(--color-link-hover);
}

/* ============================================================
   BACKSTORY / ORIGIN PAGE
   ============================================================ */
.origin-main {
  padding-top: clamp(3rem, 5vw, 5rem);
  padding-bottom: var(--section-gap);
  display: grid;
  gap: clamp(2rem, 4vw, 3.5rem);
}

.origin-hero {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  padding: clamp(2rem, 5vw, 3.5rem);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.5rem;
  align-items: center;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  box-shadow: none;
  color: var(--color-text);
}

.origin-hero > * {
  position: relative;
  z-index: 1;
}

.origin-hero::after {
  display: none;
}

.origin-hero .kicker {
  color: var(--color-accent);
}

.origin-hero h1 {
  font-size: var(--fs-display);
  letter-spacing: -0.03em;
  margin: 0.65rem 0 0.5rem;
  color: var(--color-text);
}

.origin-hero-copy {
  max-width: none;
}

.origin-mark-wrap {
  align-self: stretch;
  width: 100%;
  border-radius: 24px;
  padding: clamp(1rem, 2vw, 1.5rem);
  overflow: hidden;
  display: grid;
  place-items: center;
  gap: 0.75rem;
  background: var(--color-bg-dark);
  border: none;
  min-height: 260px;
}

.origin-mark-wrap img {
  width: 100%;
  max-width: 200px;
  transform: scale(2);
  transform-origin: center;
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.35));
}

.origin-mark-wrap p {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--fs-caption);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-align: center;
}

.origin-story-module {
  border-radius: 28px;
  padding: clamp(1.5rem, 3vw, 2.5rem);
}

.origin-story-head {
  margin: 0 0 1rem;
}

.origin-story-head .kicker {
  color: var(--color-accent);
}

.origin-story-head h2 {
  margin: 0.65rem 0 0;
  font-size: var(--fs-title);
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.origin-story-module .project-copy {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--fs-body);
  line-height: 1.65;
}

.origin-story-module .project-copy + .project-copy {
  margin-top: 1rem;
}

/* Rationale */
.origin-rationale {
  border-radius: 28px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
  box-shadow: none;
}

.origin-rationale-head h2 {
  margin: 0.65rem 0 0.75rem;
  font-size: var(--fs-title);
  letter-spacing: -0.02em;
}

.origin-rationale-head p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--fs-body);
}

.origin-rationale-grid {
  margin-top: 1.25rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.origin-rationale-card {
  border-radius: 20px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  padding: 1.5rem;
}

.origin-rationale-card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.origin-rationale-card p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  line-height: 1.55;
}

/* ============================================================
   BUILDER PROFILE / RESUME PAGE
   ============================================================ */
.resume-main {
  padding-top: clamp(3rem, 5vw, 5rem);
  padding-bottom: var(--section-gap);
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.resume-hero {
  border-radius: 28px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  padding: clamp(1.5rem, 4vw, 2.75rem);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.5rem;
  align-items: stretch;
  box-shadow: none;
}

.resume-hero h1 {
  font-size: var(--fs-display);
  letter-spacing: -0.03em;
  margin: 0.65rem 0 0.85rem;
}

.resume-hero-lead {
  margin: 0;
  font-size: var(--fs-body-large);
  color: var(--color-text-secondary);
  font-weight: 500;
}

.resume-hero-sub {
  margin: 0.65rem 0 0;
  color: var(--color-text-tertiary);
  font-size: var(--fs-small);
}

.resume-hero-copy {
  display: flex;
  flex-direction: column;
  align-self: stretch;
}

.resume-hero-copy > * {
  min-width: 0;
}

.resume-hero-copy > * + * {
  margin-top: 0.75rem;
}

.resume-hero-copy :is(h1, .resume-hero-lead, .resume-hero-sub) {
  margin-top: 0;
}

.resume-hero-education {
  margin-top: 2rem;
}

.resume-hero-education .resume-label {
  display: block;
  margin-bottom: 0.35rem;
}

.resume-hero-education h2 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
}

.resume-social-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.resume-social-icon {
  width: 0.9rem;
  height: 0.9rem;
  flex: 0 0 auto;
}

.resume-hero .actions {
  margin-top: auto;
  padding-top: 1rem;
}

/* Focus panel */
.resume-hero-focus {
  border-radius: 24px;
  background: var(--color-bg-dark);
  padding: clamp(1rem, 2vw, 1.5rem);
  display: grid;
  align-content: start;
  gap: 0.55rem;
  width: min(100%, 360px);
  justify-self: end;
  align-self: start;
}

.resume-hero-photo-frame {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 1;
  border-radius: 18px;
  overflow: hidden;
}

.resume-focus-label {
  margin: 0;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: var(--fs-label);
  font-weight: 600;
}

.resume-hero-focus ul {
  margin: 0;
  padding-left: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--fs-small);
  list-style: disc;
}

.resume-hero-focus li + li {
  margin-top: 0.4rem;
}

.builder-profile-photo {
  width: 100%;
  height: 100%;
  max-width: none;
  filter: hue-rotate(-15deg) saturate(0.72) brightness(1.05);
  aspect-ratio: auto;
  object-fit: cover;
  object-position: center 14%;
  border-radius: 0;
  border: 0;
  box-shadow: none;
}

/* Resume layout */
.resume-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.55fr;
  gap: 1.25rem;
  align-items: start;
  overflow: visible;
}

.resume-layout > * {
  min-width: 0;
}

.resume-rail {
  position: sticky;
  top: 70px;
  display: grid;
  gap: 1rem;
  overflow: visible;
}

.resume-rail-card,
.resume-section {
  border-radius: 24px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
}

.resume-rail-card :is(h2, h3):not(.resume-label),
.resume-section :is(h2, h3):not(.resume-label) {
  margin: 0.35rem 0 0.75rem;
  font-size: var(--fs-title);
  letter-spacing: -0.02em;
}

.resume-list {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  overflow-wrap: anywhere;
  list-style: disc;
}

.resume-list li + li {
  margin-top: 0.5rem;
}

.resume-list-tight li + li {
  margin-top: 0.45rem;
}

.resume-list strong {
  color: var(--color-text);
}

.resume-course-title-link {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-decoration-color: var(--color-border-strong);
  text-underline-offset: 0.16em;
  transition:
    color var(--duration-fast) var(--ease),
    text-decoration-color var(--duration-fast) var(--ease);
}

.resume-course-title-link:hover {
  color: var(--color-link);
  text-decoration-color: currentColor;
}

.resume-rail-title-compact {
  font-size: 1.0625rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.resume-interest-copy,
.resume-section-copy {
  margin: 0.5rem 0 0;
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  line-height: 1.55;
}

.resume-section-copy {
  margin-bottom: 1rem;
}

.resume-copy {
  margin: 0.15rem 0 0;
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
}

.resume-main-column {
  display: grid;
  gap: 1rem;
  overflow: visible;
}

.resume-section :is(h2, h3):not(.resume-label) {
  margin-bottom: 1rem;
}

/* Experience timeline */
.resume-timeline {
  border-left: 2px solid var(--color-border-strong);
  padding-left: 1.1rem;
  display: grid;
  gap: 0.85rem;
}

.resume-role {
  border-radius: 16px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  padding: 1.25rem;
}

.resume-role header h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.resume-role header p {
  margin: 0.3rem 0 0.65rem;
  color: var(--color-text-tertiary);
  font-size: var(--fs-caption);
}

/* Education */
.resume-edu-card {
  border-radius: 16px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  padding: 1.25rem;
}

.resume-edu-card h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.resume-edu-card p {
  margin: 0.4rem 0 0;
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
}

.resume-edu-degree {
  margin: 0.35rem 0 0;
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
}

.resume-edu-meta {
  margin: 0.65rem 0 0;
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  font-weight: 550;
}

/* Course/cert grid */
.resume-course-grid {
  margin-top: 0.5rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
}

.resume-project-grid {
  grid-auto-rows: 1fr;
}

.resume-course-card {
  border-radius: 20px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  padding: 1.25rem;
}

.resume-course-card h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.3;
}

.resume-course-card p {
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  line-height: 1.55;
}

.resume-course-meta {
  margin: 0.45rem 0 0;
  font-weight: 550;
}

.resume-course-description {
  margin: 0.35rem 0 0;
}

/* Course link cards */
.resume-course-link {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  height: 100%;
  gap: 0.5rem;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition:
    border-color var(--duration-fast) var(--ease),
    box-shadow var(--duration-fast) var(--ease),
    transform var(--duration-fast) var(--ease);
}

.resume-project-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 0.75rem;
}

.resume-project-thumb {
  margin: 0;
  aspect-ratio: 2 / 1;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.resume-project-thumb picture,
.resume-project-thumb img {
  display: block;
  width: 100%;
  height: 100%;
}

.resume-project-thumb img {
  object-fit: cover;
  object-position: center top;
  transition: transform var(--duration-fast) var(--ease);
}

.resume-project-copy {
  min-width: 0;
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  align-self: stretch;
}

.resume-project-copy p {
  margin: 0;
}

.resume-project-link .resume-course-cta {
  margin-top: auto;
  padding-top: 0.75rem;
}

.resume-course-link .resume-course-cta {
  margin-top: auto;
  padding-top: 0.75rem;
}

.resume-course-cta {
  margin-top: 0.35rem;
  display: inline-flex;
  align-items: center;
  align-self: start;
  justify-self: start;
  gap: 0.35rem;
  width: fit-content;
  border: 0;
  background: transparent;
  color: var(--color-link);
  font-size: var(--fs-caption);
  font-weight: 500;
  padding: 0;
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease);
}

.resume-course-cta span {
  display: inline-block;
  line-height: 1;
  transition: transform var(--duration-fast) var(--ease);
}

.resume-course-link:hover {
  border-color: var(--color-border-strong);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.resume-project-link:hover .resume-project-thumb img,
.resume-project-link:focus-visible .resume-project-thumb img {
  transform: scale(1.03);
}

.resume-course-link:hover .resume-course-cta {
  color: var(--color-link-hover);
}

.resume-course-link:hover .resume-course-cta span {
  transform: translateX(3px);
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 3rem var(--gutter) 2rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-tertiary);
  font-size: var(--fs-caption);
  line-height: 1.6;
}

footer p {
  margin: 0;
}

footer p + p {
  margin-top: 0.2rem;
}

/* ============================================================
   HERO HELPERS (logo-orb, timeline, etc.)
   ============================================================ */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
  padding: 2rem 0;
}

.logo-orb {
  aspect-ratio: 1;
  border-radius: 24px;
  padding: 1.2rem;
  display: grid;
  place-items: center;
  background: var(--color-bg-dark);
}

.logo-orb img {
  width: 100%;
  max-width: 240px;
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.25));
}

.timeline {
  border-left: 2px solid var(--color-border-strong);
  margin-top: 1.2rem;
  padding-left: 1.2rem;
}

.timeline article {
  margin-bottom: 1.2rem;
}

.timeline h3 {
  font-size: 1rem;
  font-weight: 600;
}

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 0.8s var(--ease-out),
    transform 0.8s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal.delay-1 {
  transition-delay: 0.1s;
}

.reveal.delay-2 {
  transition-delay: 0.2s;
}

.reveal.delay-3 {
  transition-delay: 0.3s;
}

.reveal.delay-4 {
  transition-delay: 0.4s;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================================
   RESPONSIVE: TABLET (≤ 920px)
   ============================================================ */
@media (max-width: 920px) {
  .hero {
    grid-template-columns: 1fr;
  }

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

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

  .about-panels {
    grid-template-columns: 1fr;
  }

  .home-audience {
    grid-template-columns: 1fr;
  }

  .home-build-grid {
    grid-template-columns: 1fr;
  }

  .origin-hero {
    grid-template-columns: 1fr;
  }

  .origin-mark-wrap {
    min-height: 220px;
    width: 100%;
  }

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

  .project-doc-grid {
    grid-template-columns: 1fr 1fr;
  }

  .project-showcase-card {
    grid-template-columns: 1fr;
  }

  .project-feature-hero {
    grid-template-columns: 1fr;
  }

  .game-of-life-form-row,
  .game-of-life-stats {
    grid-template-columns: 1fr 1fr;
  }

  .editor-layout {
    grid-template-columns: 1fr;
  }

  .game-of-life-editor-stage {
    min-height: 340px;
  }

  .editor-stamp-row {
    flex-wrap: wrap;
  }

  .editor-chart-shell {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    gap: 0.5rem;
  }

  .editor-chart-y-label,
  .editor-chart-x-label {
    writing-mode: initial;
    transform: none;
  }

  .editor-chart-y-label {
    justify-self: start;
  }

  .editor-chart-stage,
  .editor-chart-x-label {
    grid-column: 1;
  }

  .editor-pattern-list {
    grid-auto-columns: minmax(260px, 320px);
  }

  .project-subnav {
    border-radius: 20px;
  }

  .project-hero-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .builder-card {
    grid-template-columns: 88px 1fr;
    gap: 0.85rem 1rem;
  }

  .builder-photo {
    width: 88px;
    height: 88px;
  }

  .resume-hero {
    grid-template-columns: 1fr;
  }

  .resume-layout {
    grid-template-columns: 1fr;
  }

  .resume-main-column {
    order: 1;
  }

  .resume-rail {
    order: 2;
    position: static;
  }

  .resume-course-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   RESPONSIVE: MOBILE (≤ 640px)
   ============================================================ */
@media (max-width: 640px) {
  :root {
    --section-gap: 48px;
  }

  .home-main,
  .project-main,
  .about-main,
  .builders-main,
  .resume-main,
  .origin-main,
  .flow {
    padding-top: 2rem;
  }

  .nav-wrap {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.5rem var(--gutter);
    gap: 0.5rem;
  }

  .nav-links {
    gap: 0.1rem;
  }

  .nav-links a {
    padding: 0.3rem 0.55rem;
    font-size: 0.75rem;
  }

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

  .project-hero,
  .project-card,
  .project-spotlight {
    padding: 1.5rem;
    border-radius: 24px;
  }

  .project-hero-art {
    margin-top: 1rem;
    border-radius: 16px;
  }

  .project-subnav {
    border-radius: 16px;
  }

  .project-subnav a {
    width: 100%;
    text-align: center;
  }

  .project-doc-grid {
    grid-template-columns: 1fr;
  }

  .project-showcase-card {
    padding: 1.25rem;
    border-radius: 24px;
    gap: 1rem;
  }

  .project-showcase-media {
    border-radius: 16px;
    padding: 0.5rem;
  }

  .project-showcase-media img {
    border-radius: 12px;
  }

  .game-of-life-stage {
    min-height: 260px;
  }

  .game-of-life-form-row,
  .game-of-life-stats {
    grid-template-columns: 1fr;
  }

  .game-of-life-editor-stage {
    min-height: 260px;
  }

  .editor-toolbar {
    gap: 0.4rem;
    padding: 0.4rem 0.6rem;
  }

  .editor-run-sep {
    display: none;
  }

  .editor-chart-panel {
    padding: 0.85rem;
  }

  .editor-chart-stage {
    min-height: 200px;
  }

  .editor-history-actions,
  .editor-pattern-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .editor-pattern-list {
    grid-auto-flow: row;
    grid-auto-columns: initial;
    grid-template-columns: 1fr;
    overflow: visible;
  }

  .editor-history-actions .editor-action-btn,
  .editor-pattern-actions .btn,
  .editor-pattern-actions .editor-action-btn {
    justify-content: center;
    width: 100%;
  }

  .project-author-chip {
    width: 100%;
    max-width: 340px;
    border-radius: 16px;
  }

  .project-hero-panel {
    padding: 0;
    border-radius: 20px;
  }

  .project-hero-photo img {
    min-height: 300px;
  }

  .builder-card {
    grid-template-columns: 1fr;
    padding: 1.25rem;
  }

  .builder-photo {
    width: 100px;
    height: 100px;
  }

  .builder-profile-photo {
    object-position: center 12%;
  }

  .resume-hero-photo-frame {
    max-width: 240px;
  }

  .contact-hero,
  .about-hero,
  .builders-hero {
    padding: 1.5rem;
    border-radius: 24px;
  }
}