/* ==========================================================================
   patrickcowhill.com — styles
   Structure:
     1. Design tokens (light + dark)
     2. Base / reset
     3. Layout primitives
     4. Header & navigation
     5. Hero
     6. Sections (What I Bring, Experience, Work, Foundation, Approach, More)
     7. Footer
     8. Utilities, motion, and responsive rules
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------------- */
:root {
  color-scheme: light;

  /* Light theme: warm stone background, charcoal text, rich green accent */
  --bg: #f4f3f0;
  --bg-elev: #fbfaf8;
  --surface: #e9e8e3;
  --surface-strong: #dcdbd5;
  --border: #d3d2cb;
  --border-strong: #b9b8b0;

  --text: #23282e;
  --text-muted: #5a616a;
  --text-faint: #7d848d;

  --accent: #1f7a4d;
  --accent-strong: #176541;
  --accent-soft: rgba(31, 122, 77, 0.10);
  --accent-ring: rgba(31, 122, 77, 0.35);
  --on-accent: #ffffff;

  --slate: #3b4652;
  --slate-soft: #6b7a89;

  /* Polyhedron palette (read by JS) */
  --poly-base: #556472;
  --poly-light: #8a97a6;
  --poly-dark: #333d48;
  --poly-accent: #2e9a63;
  --poly-edge: rgba(22, 26, 31, 0.35);
  --poly-glow: rgba(31, 122, 77, 0.18);

  --shadow-sm: 0 1px 2px rgba(20, 24, 28, 0.06), 0 2px 8px rgba(20, 24, 28, 0.05);
  --shadow-md: 0 4px 16px rgba(20, 24, 28, 0.08), 0 1px 3px rgba(20, 24, 28, 0.06);

  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --container: 1160px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section-y: clamp(4rem, 9vw, 7.5rem);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 220ms;
}

/* Dark theme: deep slate background, light gray text, same green family */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;

    --bg: #161b22;
    --bg-elev: #1b2129;
    --surface: #202832;
    --surface-strong: #283140;
    --border: #2d3745;
    --border-strong: #3f4b5a;

    --text: #e6e9ed;
    --text-muted: #a3adb8;
    --text-faint: #7d8794;

    --accent: #3fae78;
    --accent-strong: #5ec18f;
    --accent-soft: rgba(63, 174, 120, 0.14);
    --accent-ring: rgba(63, 174, 120, 0.45);
    --on-accent: #0e1a14;

    --slate: #aab4bf;
    --slate-soft: #7f8b98;

    --poly-base: #3a4652;
    --poly-light: #6f7f90;
    --poly-dark: #1c232b;
    --poly-accent: #3fae78;
    --poly-edge: rgba(190, 205, 220, 0.22);
    --poly-glow: rgba(63, 174, 120, 0.16);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35), 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 0, 0, 0.3);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --bg: #161b22;
  --bg-elev: #1b2129;
  --surface: #202832;
  --surface-strong: #283140;
  --border: #2d3745;
  --border-strong: #3f4b5a;

  --text: #e6e9ed;
  --text-muted: #a3adb8;
  --text-faint: #7d8794;

  --accent: #3fae78;
  --accent-strong: #5ec18f;
  --accent-soft: rgba(63, 174, 120, 0.14);
  --accent-ring: rgba(63, 174, 120, 0.45);
  --on-accent: #0e1a14;

  --slate: #aab4bf;
  --slate-soft: #7f8b98;

  --poly-base: #3a4652;
  --poly-light: #6f7f90;
  --poly-dark: #1c232b;
  --poly-accent: #3fae78;
  --poly-edge: rgba(190, 205, 220, 0.22);
  --poly-glow: rgba(63, 174, 120, 0.16);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35), 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* --------------------------------------------------------------------------
   2. Base / reset
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 650;
  letter-spacing: -0.015em;
  line-height: 1.2;
  text-wrap: balance;
}

p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

ul, ol { margin: 0; padding: 0; }

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
  transition: color var(--dur) var(--ease);
}
a:hover { color: var(--accent-strong); }

img, svg, canvas { display: block; max-width: 100%; }

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

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

::selection { background: var(--accent-soft); }

/* --------------------------------------------------------------------------
   3. Layout primitives
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--section-y);
  border-top: 1px solid var(--border);
}

.section__header {
  max-width: 44rem;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}
.section__header--wide { max-width: 52rem; }

.section__title {
  font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.3rem);
}

.section__note {
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 40em;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--accent);
  color: var(--on-accent);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
}
.skip-link:focus { top: 1rem; }

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.35rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease),
              color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.button:active { transform: translateY(1px); }

.button--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}
.button--primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); color: var(--on-accent); }

.button--secondary {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}
.button--secondary:hover { border-color: var(--text-muted); background: var(--surface); color: var(--text); }

.button--large { padding: 1rem 1.6rem; font-size: 1.05rem; }
.button__arrow { transition: transform var(--dur) var(--ease); }
.button:hover .button__arrow { transform: translateX(3px); }

/* --------------------------------------------------------------------------
   4. Header & navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -0.01em;
}
.brand:hover { color: var(--text); }

.brand__mark {
  width: 14px; height: 14px;
  background: var(--accent);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  flex: none;
}

.site-nav { display: flex; align-items: center; margin-left: auto; }

.nav-menu {
  display: flex;
  gap: clamp(1rem, 2.5vw, 2rem);
  list-style: none;
}
.nav-menu a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.nav-menu a:hover { color: var(--text); }
.nav-menu a[aria-current="true"] { color: var(--text); border-bottom-color: var(--accent); }

.nav-toggle {
  display: none;
  position: relative;
  width: 2.5rem; height: 2.5rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
}
.nav-toggle__bar,
.nav-toggle__bar::before,
.nav-toggle__bar::after {
  position: absolute;
  left: 50%;
  width: 18px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav-toggle__bar { top: 50%; margin-top: -1px; }
.nav-toggle__bar::before { content: ""; top: -6px; }
.nav-toggle__bar::after { content: ""; top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::before { transform: translateX(-50%) translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::after { transform: translateX(-50%) translateY(-6px) rotate(-45deg); }

.theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 2.5rem; height: 2.5rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.theme-toggle:hover { color: var(--text); border-color: var(--border-strong); background: var(--surface); }
.theme-toggle__icon { grid-area: 1 / 1; transition: opacity var(--dur) var(--ease), transform 300ms var(--ease); }
.theme-toggle__icon--moon { opacity: 1; transform: rotate(0deg) scale(1); }
.theme-toggle__icon--sun  { opacity: 0; transform: rotate(-40deg) scale(0.6); }
[data-theme="dark"] .theme-toggle__icon--moon { opacity: 0; transform: rotate(40deg) scale(0.6); }
[data-theme="dark"] .theme-toggle__icon--sun  { opacity: 1; transform: rotate(0deg) scale(1); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle__icon--moon { opacity: 0; transform: rotate(40deg) scale(0.6); }
  :root:not([data-theme="light"]) .theme-toggle__icon--sun  { opacity: 1; transform: rotate(0deg) scale(1); }
}

/* --------------------------------------------------------------------------
   5. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(3rem, 8vw, 6.5rem) clamp(3rem, 7vw, 5.5rem);
  background:
    radial-gradient(ellipse 60% 55% at 78% 45%, var(--poly-glow), transparent 70%),
    var(--bg);
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
}

.hero__copy { max-width: 36rem; }

.hero__title {
  font-size: clamp(2.4rem, 1.6rem + 3.4vw, 4rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 1.1rem;
}

.hero__lead {
  font-size: clamp(1.2rem, 1rem + 0.8vw, 1.5rem);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 1rem;
  text-wrap: balance;
}

.hero__sub {
  color: var(--text-muted);
  font-size: 1.08rem;
  max-width: 34em;
  margin-bottom: 2rem;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.hero__visual {
  position: relative;
  aspect-ratio: 1 / 1;
  width: 100%;
  max-width: 520px;
  margin-inline: auto;
}

.polyhedron,
.polyhedron-fallback {
  width: 100%;
  height: 100%;
  touch-action: pan-y;
}

/* --------------------------------------------------------------------------
   6a. What I Bring
   -------------------------------------------------------------------------- */
.bring-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0 clamp(1.5rem, 3vw, 2.5rem);
  border-top: 1px solid var(--border-strong);
}

.bring-item {
  padding-top: 1.5rem;
  position: relative;
}
.bring-item::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 2.5rem;
  height: 2px;
  background: var(--accent);
}

.bring-item__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  margin-bottom: 0.9rem;
  letter-spacing: 0.05em;
}

.bring-item__title {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}
.bring-item p { color: var(--text-muted); font-size: 1rem; }

/* --------------------------------------------------------------------------
   6b. Experience stories
   -------------------------------------------------------------------------- */
.story {
  display: grid;
  grid-template-columns: minmax(0, 17rem) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  padding-block: clamp(2.25rem, 4vw, 3.25rem);
  border-top: 1px solid var(--border);
}
.story:last-child { padding-bottom: 0; }

.story__org {
  font-size: 1.25rem;
  font-weight: 650;
  letter-spacing: -0.015em;
  margin-bottom: 0.25rem;
}
.story__dates {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-faint);
  margin-bottom: 0.9rem;
}
.story__role { color: var(--text-muted); font-weight: 500; margin-bottom: 1.25rem; }

.story__progression {
  list-style: none;
  margin-bottom: 1.25rem;
  position: relative;
  padding-left: 1.1rem;
}
.story__progression::before {
  content: "";
  position: absolute;
  left: 4px; top: 0.55rem; bottom: 0.55rem;
  width: 1px;
  background: var(--border-strong);
}
.story__progression li {
  position: relative;
  color: var(--text-muted);
  font-size: 0.95rem;
  padding-block: 0.15rem;
}
.story__progression li::before {
  content: "";
  position: absolute;
  left: -1.1rem; top: 0.72rem;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border-strong);
}
.story__progression li:last-child { color: var(--text); font-weight: 500; }
.story__progression li:last-child::before { background: var(--accent); border-color: var(--accent); }

.story__stack {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.story__stack li {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.story__title {
  font-size: clamp(1.25rem, 1.05rem + 0.6vw, 1.55rem);
  margin-bottom: 1rem;
}
.story__subtitle {
  font-size: 1.02rem;
  font-weight: 650;
  margin: 1.5rem 0 0.6rem;
}
.story__body p { color: var(--text); }
.story__body > p { max-width: 62ch; }

.story__list {
  list-style: none;
  display: grid;
  gap: 0.6rem;
  max-width: 62ch;
}
.story__list li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--text);
}
.story__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.72em;
  width: 7px; height: 7px;
  background: var(--accent);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

.patents {
  margin-top: 1.5rem;
  padding: 1.1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  max-width: 62ch;
}
.patents .story__subtitle { margin-top: 0; }
.patents__note { color: var(--text-faint); font-weight: 400; font-size: 0.9rem; }
.patents__list { list-style: none; display: grid; gap: 0.7rem; }
.patents__list li { display: grid; gap: 0.1rem; }
.patents__number { font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent); }
.patents__title { color: var(--text-muted); font-size: 0.95rem; }

/* --------------------------------------------------------------------------
   6c. Representative work (case studies)
   -------------------------------------------------------------------------- */
.case {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 4rem);
  align-items: center;
  padding-block: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--border);
}
.case:last-child { padding-bottom: 0; }
.case--reverse .case__visual { order: 2; }

.case__visual {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.case__visual img { width: 100%; height: auto; }

.case__kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.6rem;
}
.case__title { font-size: clamp(1.25rem, 1.05rem + 0.6vw, 1.55rem); margin-bottom: 1rem; }
.case__problem strong, .case__demonstrates strong { color: var(--text); font-weight: 650; }
.case__body > p { max-width: 58ch; }
.case__demonstrates {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--border-strong);
  color: var(--text-muted);
}
.case__links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.25rem;
  margin-top: 1rem;
  font-size: 0.95rem;
}

.case__link-meta { color: var(--text-faint); font-weight: 400; font-size: 0.85em; }


/* --------------------------------------------------------------------------
   6d. Technical foundation
   -------------------------------------------------------------------------- */
.foundation-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 15rem);
  gap: clamp(1.5rem, 3vw, 3rem);
  align-items: start;
}

.edu__school {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
}
.edu__degree { font-size: 1.2rem; margin-bottom: 0.3rem; }
.edu__meta {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-faint);
  margin-bottom: 0.9rem;
}
.edu > p { color: var(--text-muted); font-size: 1rem; }

.edu__areas-label {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin: 1rem 0 0.5rem;
}
.edu__areas {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}
.edu__areas li::after { content: "·"; margin-inline: 0.5rem; color: var(--border-strong); }
.edu__areas li:last-child::after { content: none; }

.edu__notes { list-style: none; display: grid; gap: 0.5rem; margin-top: 0.75rem; font-size: 0.98rem; color: var(--text-muted); }
.edu__notes li { position: relative; padding-left: 1.1rem; }
.edu__notes li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.7em;
  width: 6px; height: 6px;
  background: var(--accent);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

.domains {
  padding: 1.25rem 1.35rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.domains__title {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 650;
  margin-bottom: 0.75rem;
}
.domains__list { list-style: none; display: grid; }
.domains__list li {
  padding: 0.5rem 0;
  border-top: 1px solid var(--border);
  font-size: 0.95rem;
  font-weight: 500;
}
.domains__list li:first-child { border-top: 0; padding-top: 0; }
.domains__list li:last-child { padding-bottom: 0; }

/* --------------------------------------------------------------------------
   6e. How I work
   -------------------------------------------------------------------------- */
.principles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.25rem, 3vw, 2rem);
  margin: 0;
}
.principle {
  padding: 1.35rem 1.5rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-md);
}
.principle dt { font-weight: 650; font-size: 1.1rem; margin-bottom: 0.45rem; letter-spacing: -0.01em; }
.principle dd { margin: 0; color: var(--text-muted); }

/* --------------------------------------------------------------------------
   6f. Explore more
   -------------------------------------------------------------------------- */
.more {
  display: grid;
  grid-template-columns: minmax(0, 22rem) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}

/* cowhill.dev logo tile: fixed to the cowhill.dev site background (#fbf7ef)
   in both themes so the charcoal/sage/sand logo always reads correctly. */
.more__logo {
  min-width: 0;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: #fbf7ef;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.more__logo img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.more__body { min-width: 0; }
.more__lead {
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.35rem);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: -0.01em;
  max-width: 30em;
  margin-bottom: 1.5rem;
}

.more__links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
}
.more__links .button { min-width: 8.5rem; justify-content: center; }

/* --------------------------------------------------------------------------
   6g. Résumé page
   -------------------------------------------------------------------------- */
.resume { border-top: 0; }
.resume__container { max-width: 56rem; }

.resume__header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--text);
  margin-bottom: 1.5rem;
}
.resume__name { font-size: clamp(2rem, 1.4rem + 2vw, 2.8rem); letter-spacing: -0.03em; margin-bottom: 0.4rem; }
.resume__contact { color: var(--text-muted); font-size: 0.98rem; margin: 0; }
.resume__contact a { color: var(--text-muted); }
.resume__contact a:hover { color: var(--accent); }

.resume__summary { font-size: 1.08rem; line-height: 1.6; max-width: 66ch; margin-bottom: 2.25rem; }

.resume__section { margin-bottom: 2.5rem; }
.resume__heading {
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-strong);
  margin-bottom: 1.25rem;
}

.resume__entry { margin-bottom: 1.75rem; }
.resume__entry:last-child { margin-bottom: 0; }
.resume__entry-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.25rem 1rem;
  margin-bottom: 0.35rem;
}
.resume__org { font-size: 1.15rem; }
.resume__place { color: var(--text-faint); font-size: 0.92rem; }

.resume__roles { display: grid; gap: 0.15rem; margin-bottom: 0.6rem; }
.resume__role {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.15rem 1rem;
  font-weight: 500;
}
.resume__dates { font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-faint); font-weight: 400; white-space: nowrap; }
.resume__gpa { font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-muted); margin: 0; }

.resume__bullets { list-style: none; display: grid; gap: 0.35rem; }
.resume__bullets li { position: relative; padding-left: 1.15rem; color: var(--text); }
.resume__bullets li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.68em;
  width: 6px; height: 6px;
  background: var(--accent);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

.resume__competencies { margin: 0; display: grid; gap: 0.6rem; }
.resume__competencies > div {
  display: grid;
  grid-template-columns: minmax(0, 13rem) minmax(0, 1fr);
  gap: 0.25rem 1.25rem;
  align-items: baseline;
}
.resume__competencies dt { font-weight: 600; }
.resume__competencies dd { margin: 0; color: var(--text-muted); }

.resume__footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

/* --------------------------------------------------------------------------
   7. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 2rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
}
.site-footer a { color: var(--text-muted); }
.site-footer a:hover { color: var(--accent); }

/* --------------------------------------------------------------------------
   8. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .bring-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem clamp(1.5rem, 3vw, 2.5rem); }
  .bring-item { padding-top: 1.25rem; border-top: 1px solid var(--border-strong); }
  .bring-grid { border-top: 0; }
  .foundation-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .domains { grid-column: 1 / -1; }
  .domains__list { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 1.5rem; }
  .domains__list li:nth-child(2) { border-top: 0; padding-top: 0; }
}

@media (max-width: 860px) {
  .hero {
    background:
      radial-gradient(ellipse 70% 30% at 50% 16%, var(--poly-glow), transparent 70%),
      var(--bg);
  }
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { max-width: 340px; order: -1; }
  .hero__copy { max-width: none; }
  .story { grid-template-columns: 1fr; gap: 1.25rem; }
  .story__stack { max-width: 40rem; }
  .case { grid-template-columns: 1fr; gap: 1.5rem; }
  .case--reverse .case__visual { order: 0; }
  .principles { grid-template-columns: 1fr; }
  .more { grid-template-columns: 1fr; }
  .more__logo { max-width: 24rem; }
  .resume__competencies > div { grid-template-columns: 1fr; gap: 0.1rem; }
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-block; }
  .site-nav { position: static; }
  .nav-menu {
    display: none;
    position: absolute;
    left: 0; right: 0;
    top: 100%;
    flex-direction: column;
    gap: 0;
    padding: 0.5rem var(--gutter) 1rem;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  .nav-menu.is-open { display: flex; }
  .nav-menu a { display: block; padding: 0.75rem 0; font-size: 1.05rem; border-bottom: 1px solid var(--border); }
  .nav-menu li:last-child a { border-bottom: 0; }
  .nav-menu a[aria-current="true"] { border-bottom-color: var(--border); }
}

@media (max-width: 560px) {
  body { font-size: 1rem; }
  .bring-grid { grid-template-columns: 1fr; }
  .foundation-grid { grid-template-columns: 1fr; }
  .domains__list { grid-template-columns: 1fr; }
  .domains__list li:nth-child(2) { border-top: 1px solid var(--border); padding-top: 0.5rem; }
  .hero__visual { max-width: 280px; }
  .hero__actions .button { flex: 1 1 auto; justify-content: center; }
  .more__links { flex-direction: column; }
  .more__links .button { width: 100%; }
  .resume__dates { white-space: normal; }
}

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