/* ============================================================
   Hilton Chisora — Portfolio
   Design tokens → base → layout → components → responsive
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  /* Light theme */
  --bg:          #fcfcfd;
  --bg-alt:      #f2f5fa;
  --surface:     #ffffff;
  --surface-2:   #f5f8fc;
  --line:        #dde3ec;
  --line-soft:   #e9eef5;

  --text:        #10141c;
  --text-muted:  #566072;
  --text-faint:  #858e9f;

  --accent:      #123468;   /* deep navy */
  --accent-soft: #e6ecf7;
  --accent-ink:  #0b2249;
  --navy-deep:   #0c2350;
  --gold:        #c0902a;
  --gold-soft:   #f7efd9;
  --gold-ink:    #9a7020;

  --code-bg:     #12161c;
  --code-text:   #d6dbe4;

  --shadow-sm:  0 1px 2px rgba(20,22,28,.05), 0 2px 8px rgba(20,22,28,.04);
  --shadow-md:  0 2px 4px rgba(20,22,28,.04), 0 12px 32px rgba(20,22,28,.07);
  --shadow-lg:  0 4px 8px rgba(20,22,28,.05), 0 24px 60px rgba(20,22,28,.10);

  --radius:      14px;
  --radius-lg:   20px;
  --wrap:        1160px;
  --nav-h:       72px;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-serif: "Fraunces", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --ease: cubic-bezier(.22, 1, .36, 1);
}

html[data-theme="dark"] {
  --bg:          #0d0f13;
  --bg-alt:      #12151a;
  --surface:     #151920;
  --surface-2:   #1b2028;
  --line:        #262c36;
  --line-soft:   #1f242c;

  --text:        #eef1f5;
  --text-muted:  #a2aab6;
  --text-faint:  #757e8b;

  --accent:      #7ba5e8;
  --accent-soft: #16233b;
  --accent-ink:  #a9c6f4;
  --navy-deep:   #0a1830;
  --gold:        #dcae4e;
  --gold-soft:   #2a2312;
  --gold-ink:    #eec778;

  --code-bg:     #0a0d11;
  --code-text:   #d6dbe4;

  --shadow-sm:  0 1px 2px rgba(0,0,0,.4);
  --shadow-md:  0 2px 4px rgba(0,0,0,.3), 0 12px 32px rgba(0,0,0,.35);
  --shadow-lg:  0 4px 8px rgba(0,0,0,.3), 0 24px 60px rgba(0,0,0,.45);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color .35s var(--ease), color .35s var(--ease);
}

h1, h2, h3 { margin: 0; line-height: 1.15; letter-spacing: -.02em; font-weight: 600; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
b, strong { font-weight: 600; color: var(--text); }

::selection { background: var(--accent); color: #fff; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 24px;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--accent); color: #fff;
  padding: 12px 20px; border-radius: 0 0 8px 0; font-weight: 600;
}
.skip-link:focus { left: 0; }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(14px) saturate(1.6);
  -webkit-backdrop-filter: blur(14px) saturate(1.6);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background-color .3s var(--ease);
}
.nav.is-scrolled { border-bottom-color: var(--line); background: color-mix(in srgb, var(--bg) 88%, transparent); }

.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }

.nav__brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 600; }
.nav__mark {
  display: grid; place-items: center;
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--accent); color: #fff;
  font-size: 13px; font-weight: 700; letter-spacing: .04em;
}
html[data-theme="dark"] .nav__mark { color: #08120f; }
.nav__name { font-size: 15.5px; letter-spacing: -.01em; }

.nav__links { display: flex; align-items: center; gap: 4px; }
.nav__links a {
  position: relative;
  padding: 8px 13px; border-radius: 8px;
  font-size: 14.5px; font-weight: 500; color: var(--text-muted);
  transition: color .2s, background-color .2s;
}
.nav__links a:hover { color: var(--text); background: var(--surface-2); }
.nav__links a.is-active { color: var(--accent); }
.nav__links a.nav__cta {
  margin-left: 8px; padding: 8px 18px;
  background: var(--accent); color: #fff; font-weight: 600;
}
html[data-theme="dark"] .nav__links a.nav__cta { color: #08120f; }
.nav__links a.nav__cta:hover { background: var(--accent-ink); color: #fff; }
html[data-theme="dark"] .nav__links a.nav__cta:hover { color: #08120f; }

.nav__actions { display: flex; align-items: center; gap: 8px; }

.icon-btn {
  display: grid; place-items: center;
  width: 38px; height: 38px; padding: 0;
  background: transparent; color: var(--text-muted);
  border: 1px solid var(--line); border-radius: 10px;
  cursor: pointer;
  transition: color .2s, border-color .2s, background-color .2s;
}
.icon-btn:hover { color: var(--text); border-color: var(--text-faint); background: var(--surface-2); }

.icon-moon { display: none; }
html[data-theme="dark"] .icon-sun { display: none; }
html[data-theme="dark"] .icon-moon { display: block; }

.nav__burger { display: none; flex-direction: column; gap: 4px; }
.nav__burger span {
  display: block; width: 17px; height: 1.8px; border-radius: 2px;
  background: currentColor;
  transition: transform .3s var(--ease), opacity .2s;
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.8px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.8px) rotate(-45deg); }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 84px) 0 84px;
  overflow: hidden;
}
.hero__grid-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 85% 62% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 85% 62% at 50% 0%, #000 20%, transparent 78%);
  opacity: .85;
}
.hero__inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: 56px; align-items: center;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 6px 14px 6px 11px; margin-bottom: 22px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px;
  font-size: 13px; font-weight: 500; color: var(--text-muted);
  box-shadow: var(--shadow-sm);
}
.pulse {
  position: relative; width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
}
.pulse::after {
  content: ""; position: absolute; inset: -3px; border-radius: 50%;
  border: 1.5px solid var(--accent);
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0%   { transform: scale(.6); opacity: .9; }
  70%  { transform: scale(1.9); opacity: 0; }
  100% { transform: scale(1.9); opacity: 0; }
}

/* Monogram + name lockup */
.brandmark {
  display: flex; align-items: center; gap: clamp(16px, 2.4vw, 26px);
}
.brandmark__mono {
  flex: none;
  font-family: var(--font-serif);
  font-size: clamp(3.2rem, 7vw, 5.1rem);
  font-weight: 600; letter-spacing: -.06em; line-height: 1;
  padding-right: clamp(16px, 2.4vw, 26px);
  border-right: 2px solid var(--gold);
  background: linear-gradient(150deg, var(--gold-ink), var(--gold) 45%, #e8cf8d);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__title {
  font-weight: 700;
  letter-spacing: -.005em;
  line-height: 1.02;
  text-transform: uppercase;
}
.hero__first {
  display: block;
  font-size: clamp(2.4rem, 5.6vw, 4.15rem);
  color: var(--accent);
}
/* Sized to sit on one line beneath the larger first name. */
.hero__last {
  display: block; margin-top: .1em;
  font-size: clamp(1.35rem, 3.1vw, 2.35rem);
  font-weight: 600; letter-spacing: .005em;
  color: var(--gold);
}

/* Discipline row — CYBERSECURITY | CLOUD | ENTERPRISE NETWORKING */
.disciplines {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 10px clamp(12px, 1.8vw, 20px);
  margin-top: 24px;
  font-size: clamp(12.5px, 1.4vw, 14.5px);
  font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent);
}
.disciplines li { position: relative; }
.disciplines li + li::before {
  content: ""; position: absolute;
  left: calc(clamp(12px, 1.8vw, 20px) / -2); top: 50%;
  width: 1px; height: 1.05em; transform: translateY(-50%);
  background: var(--gold);
}
/* The first item carries the gold underscore from the banner. */
.disciplines li:first-child::after {
  content: ""; display: block; margin-top: 7px;
  height: 2px; background: var(--gold);
}

.hero__tagline {
  margin-top: 20px;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.15rem, 2.4vw, 1.6rem);
  font-weight: 400; letter-spacing: -.01em;
  color: var(--text);
}

.rolebadge {
  display: inline-flex; align-items: center; gap: 12px;
  margin-top: 26px;
  font-size: clamp(13.5px, 1.5vw, 15.5px);
  font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  color: var(--accent);
}
.rolebadge svg {
  flex: none; width: 34px; height: 34px; padding: 7px;
  border-radius: 50%;
  background: var(--accent); color: #fff;
  fill: none; stroke: currentColor; stroke-width: 1.9;
  stroke-linecap: round; stroke-linejoin: round;
}
html[data-theme="dark"] .rolebadge svg { color: var(--navy-deep); }

.hero__lede {
  margin-top: 22px; max-width: 54ch;
  font-size: 1.03rem; color: var(--text-muted);
}

/* Portrait */
.hero__portrait {
  position: relative;
  display: flex; justify-content: center; align-items: flex-end;
}
/* display:flex would otherwise defeat the [hidden] fallback in script.js */
.hero__portrait[hidden] { display: none; }
/* Reclaim the column too, so a missing portrait leaves no dead space. */
.hero__inner:has(.hero__portrait[hidden]) { grid-template-columns: 1fr; }
/* Offset gold outline, echoing the brand rule in the name lockup. */
.hero__portrait::before {
  content: ""; position: absolute; z-index: 0;
  top: 20px; bottom: -20px;
  left: 50%; width: min(100%, 440px);
  transform: translateX(calc(-50% + 20px));
  border: 2px solid var(--gold);
  border-radius: var(--radius-lg);
}
.hero__portrait img {
  position: relative; z-index: 1;
  width: 100%; max-width: 440px; height: auto;
  aspect-ratio: 1 / 1; object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 26px; border-radius: 11px;
  font-size: 15px; font-weight: 600; letter-spacing: -.005em;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .2s var(--ease), background-color .2s, border-color .2s, box-shadow .25s;
}
.btn svg { width: 17px; height: 17px; }
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--accent); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--accent-ink); box-shadow: var(--shadow-md); }
html[data-theme="dark"] .btn--primary { color: #08120f; }
html[data-theme="dark"] .btn--primary:hover { background: var(--accent-ink); }
.btn--ghost { background: var(--surface); color: var(--text); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--text-faint); box-shadow: var(--shadow-sm); }

/* Certification bar — full-bleed navy strip */
.certbar {
  position: relative; z-index: 1;
  margin-top: clamp(44px, 6vw, 72px);
  background: linear-gradient(100deg, var(--navy-deep), #1a4a93 62%, #2360b5);
  color: #fff;
}
.certbar__inner {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  padding-block: 0;
}
.certbar__item {
  display: flex; align-items: center; gap: 13px;
  padding: 22px clamp(12px, 1.6vw, 22px);
  box-shadow: 1px 0 0 rgba(255, 255, 255, .16);
}
.certbar__item:last-child { box-shadow: none; }
.certbar__item svg {
  flex: none; width: 30px; height: 30px;
  fill: none; stroke: var(--gold); stroke-width: 1.6;
  stroke-linecap: round; stroke-linejoin: round;
}
.certbar__item span {
  display: flex; flex-direction: column; gap: 3px;
  font-size: 12.5px; line-height: 1.35; color: rgba(255, 255, 255, .76);
}
.certbar__item b {
  font-size: 13.5px; font-weight: 700; letter-spacing: .01em; color: #fff;
}

/* Contact strip */
.cstrip {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 14px clamp(20px, 3.4vw, 44px);
  padding: 22px 0 4px;
}
.cstrip li { display: flex; align-items: center; }
.cstrip li + li { position: relative; }
.cstrip li + li::before {
  content: ""; position: absolute;
  left: calc(clamp(20px, 3.4vw, 44px) / -2); top: 50%;
  width: 1px; height: 20px; transform: translateY(-50%);
  background: var(--line);
}
.cstrip a,
.cstrip span {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14.5px; color: var(--text-muted);
}
.cstrip a:hover { color: var(--accent); }
.cstrip em { font-family: var(--font-serif); font-style: italic; color: var(--text); }
.cstrip svg {
  flex: none; width: 30px; height: 30px; padding: 6px;
  border-radius: 50%;
  background: var(--accent-soft); color: var(--accent);
  fill: none; stroke: currentColor; stroke-width: 1.7;
  stroke-linecap: round; stroke-linejoin: round;
}

/* Stats */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; margin-top: 80px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat {
  padding: 26px 24px;
  background: var(--bg);
  transition: background-color .3s;
}
.stat:hover { background: var(--surface-2); }
.stat__num {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.4vw, 2.35rem);
  font-weight: 600; letter-spacing: -.03em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.stat__label {
  display: block; margin-top: 6px;
  font-size: 13.5px; color: var(--text-muted); line-height: 1.45;
}

/* ============================================================
   Section shell
   ============================================================ */
.section { padding: 108px 0; }
.section--alt {
  background: var(--bg-alt);
  border-block: 1px solid var(--line-soft);
}
.section__head { max-width: 640px; margin-bottom: 56px; }
.section__kicker {
  display: inline-block; margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12px; font-weight: 500; letter-spacing: .09em; text-transform: uppercase;
  color: var(--accent);
}
.section__title {
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 3.8vw, 2.7rem);
  font-weight: 600; letter-spacing: -.03em; line-height: 1.12;
}

/* ---------- About ---------- */
.about { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: 60px; }
.about__body { display: grid; gap: 20px; }
.about__body p { color: var(--text-muted); font-size: 1.02rem; }

.about__facets { display: grid; gap: 14px; align-content: start; }
.about__facets li {
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s;
}
.about__facets li:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }
.about__facets svg { width: 22px; height: 22px; color: var(--accent); }
.about__facets h3 { margin: 12px 0 6px; font-size: 1rem; }
.about__facets p { font-size: 14px; color: var(--text-muted); line-height: 1.55; }

/* ---------- Timeline ---------- */
.timeline { position: relative; display: grid; gap: 32px; padding-left: 34px; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 12px; bottom: 12px;
  width: 1.5px;
  background: linear-gradient(to bottom, var(--accent), var(--line) 65%, transparent);
}
.tl { position: relative; }
.tl__marker {
  position: absolute; left: -34px; top: 26px;
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--bg-alt);
  border: 2.5px solid var(--accent);
  box-shadow: 0 0 0 4px var(--bg-alt);
}
.tl__card {
  padding: 30px 32px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.tl__card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.tl__head {
  display: flex; flex-wrap: wrap; gap: 8px 20px;
  align-items: baseline; justify-content: space-between;
  padding-bottom: 18px; margin-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}
.tl__role { font-size: 1.22rem; letter-spacing: -.02em; }
.tl__org { margin-top: 4px; font-size: 14.5px; font-weight: 500; color: var(--accent); }
.tl__org span { color: var(--text-faint); font-weight: 400; }
.tl__date {
  font-family: var(--font-mono); font-size: 12.5px;
  color: var(--text-muted); white-space: nowrap;
  padding: 5px 11px; background: var(--surface-2);
  border: 1px solid var(--line-soft); border-radius: 999px;
}
.tl__points { display: grid; gap: 11px; }
.tl__points li {
  position: relative; padding-left: 22px;
  font-size: 15px; color: var(--text-muted); line-height: 1.6;
}
.tl__points li::before {
  content: ""; position: absolute; left: 2px; top: .62em;
  width: 6px; height: 6px; border-radius: 2px;
  background: var(--accent); opacity: .55;
}
.tl__points b { color: var(--text); font-weight: 600; }

/* ---------- Chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
.chips li {
  padding: 5px 12px;
  font-family: var(--font-mono); font-size: 11.5px; font-weight: 500;
  letter-spacing: .01em; color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--line-soft); border-radius: 7px;
  transition: color .2s, border-color .2s, background-color .2s;
}
.chips li:hover { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, transparent); background: var(--accent-soft); }
.chips--sm { margin-top: 18px; }

/* ---------- Projects ---------- */
.projects { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.proj {
  position: relative; overflow: hidden;
  padding: 32px 34px 34px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.proj::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  transform: scaleX(0); transform-origin: left;
  transition: transform .45s var(--ease);
}
.proj:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--accent) 30%, var(--line)); }
.proj:hover::after { transform: scaleX(1); }
.proj__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.proj__idx {
  font-family: var(--font-serif); font-size: 1.5rem; font-style: italic;
  color: var(--accent); opacity: .45;
}
.proj__date { font-family: var(--font-mono); font-size: 12px; color: var(--text-faint); }
.proj__title { font-size: 1.28rem; letter-spacing: -.025em; }
.proj__desc { margin-top: 12px; font-size: 15px; color: var(--text-muted); line-height: 1.62; }

/* ---------- Certifications ---------- */
.certs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 46px; }
.cert {
  padding: 28px 30px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.cert:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.cert--feature {
  background: linear-gradient(150deg, var(--accent-soft), var(--surface) 65%);
  border-color: color-mix(in srgb, var(--accent) 32%, var(--line));
}
.cert__issuer {
  font-family: var(--font-mono); font-size: 11.5px; font-weight: 500;
  letter-spacing: .1em; text-transform: uppercase; color: var(--accent);
}
.cert__name { margin: 12px 0 10px; font-size: 1.12rem; letter-spacing: -.02em; }
.cert__meta { font-size: 13.5px; color: var(--text-muted); line-height: 1.5; }

/* ---------- Skill sets ---------- */
.skills { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px 48px; }
.skillset h3 {
  padding-bottom: 12px; margin-bottom: 4px;
  border-bottom: 1px solid var(--line);
  font-size: .95rem; letter-spacing: -.01em;
}
.skillset .chips { margin-top: 16px; }

/* ---------- Education ---------- */
.edu-layout { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr); gap: 56px; }
.edu { display: grid; }
.edu__item {
  display: grid; grid-template-columns: 128px 1fr; gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.edu__item:last-child { border-bottom: 1px solid var(--line); }
.edu__date {
  font-family: var(--font-mono); font-size: 12.5px;
  color: var(--accent); padding-top: 4px; letter-spacing: .02em;
}
.edu__body h3 { font-size: 1.06rem; letter-spacing: -.02em; }
.edu__and { color: var(--text-faint); font-weight: 400; }
.edu__school { margin-top: 6px; font-size: 14.5px; font-weight: 500; color: var(--text); }
.edu__loc { font-size: 13.5px; color: var(--text-faint); }

.memberships {
  align-self: start;
  padding: 28px 30px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.memberships__title {
  padding-bottom: 14px; margin-bottom: 4px;
  border-bottom: 1px solid var(--line-soft);
  font-size: .95rem;
}
.memberships li { padding: 16px 0; border-bottom: 1px solid var(--line-soft); }
.memberships li:last-child { border-bottom: 0; padding-bottom: 0; }
.memberships__org { font-size: 14.5px; font-weight: 500; line-height: 1.45; }
.memberships__date { margin-top: 4px; font-family: var(--font-mono); font-size: 12px; color: var(--text-faint); }

/* ---------- Contact ---------- */
.contact { background: var(--bg-alt); border-top: 1px solid var(--line-soft); }
.contact__inner { max-width: 860px; text-align: center; }
.contact__title {
  margin-top: 6px;
  font-family: var(--font-serif);
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  font-weight: 600; letter-spacing: -.035em;
}
.contact__lede {
  max-width: 56ch; margin: 18px auto 0;
  font-size: 1.03rem; color: var(--text-muted);
}
.contact__links {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 14px; margin-top: 44px; text-align: left;
}
.clink {
  display: flex; align-items: center; gap: 15px;
  padding: 20px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s;
}
.clink:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.clink svg { flex: none; width: 21px; height: 21px; color: var(--accent); }
.clink span { display: grid; font-size: 15px; font-weight: 500; min-width: 0; overflow-wrap: anywhere; }
.clink b {
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  letter-spacing: .09em; text-transform: uppercase;
  color: var(--text-faint); margin-bottom: 2px;
}

/* ---------- Footer ---------- */
.footer { padding: 32px 0; border-top: 1px solid var(--line); background: var(--bg); }
.footer__inner {
  display: flex; flex-wrap: wrap; gap: 8px 20px;
  align-items: center; justify-content: space-between;
  font-size: 13.5px; color: var(--text-faint);
}
.footer__note { font-family: var(--font-mono); font-size: 12px; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1040px) {
  .hero__inner { grid-template-columns: 1fr; gap: 44px; }
  .hero__portrait { order: -1; }
  .hero__portrait img { max-width: 340px; }
  .certbar__inner { grid-template-columns: repeat(3, 1fr); }
  .certbar__item { box-shadow: 1px 0 0 rgba(255,255,255,.16), 0 1px 0 rgba(255,255,255,.16); }
  .certbar__item:nth-child(3n) { box-shadow: 0 1px 0 rgba(255,255,255,.16); }
  .certbar__item:last-child { box-shadow: none; }
  .about { grid-template-columns: 1fr; gap: 40px; }
  .about__facets { grid-template-columns: repeat(3, 1fr); }
  .edu-layout { grid-template-columns: 1fr; gap: 40px; }
  .certs { grid-template-columns: 1fr 1fr; }
  .cert--feature { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  :root { --nav-h: 64px; }

  .nav__links {
    position: fixed; inset: var(--nav-h) 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    padding: 16px 24px 26px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    transform: translateY(-12px);
    opacity: 0; visibility: hidden;
    transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
  }
  .nav__links.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav__links a { padding: 13px 14px; font-size: 16px; }
  .nav__links a.nav__cta { margin: 8px 0 0; text-align: center; }
  .nav__burger { display: flex; }
  .nav__name { display: none; }

  .hero { padding: calc(var(--nav-h) + 56px) 0 64px; }
  .section { padding: 76px 0; }
  .section__head { margin-bottom: 40px; }

  .stats { grid-template-columns: 1fr 1fr; margin-top: 56px; }
  .certbar__inner { grid-template-columns: 1fr 1fr; }
  .certbar__item:nth-child(3n) { box-shadow: 1px 0 0 rgba(255,255,255,.16), 0 1px 0 rgba(255,255,255,.16); }
  .certbar__item:nth-child(2n) { box-shadow: 0 1px 0 rgba(255,255,255,.16); }
  .certbar__item:last-child { box-shadow: none; }
  .cstrip { gap: 12px 24px; }
  .cstrip li + li::before { display: none; }
  .about__facets { grid-template-columns: 1fr; }
  .projects { grid-template-columns: 1fr; }
  .skills { grid-template-columns: 1fr; gap: 26px; }
  .certs { grid-template-columns: 1fr; }
  .contact__links { grid-template-columns: 1fr; }

  .timeline { padding-left: 26px; }
  .timeline::before { left: 5px; }
  .tl__marker { left: -26px; top: 24px; width: 13px; height: 13px; }
  .tl__card { padding: 24px 22px; }

  .edu__item { grid-template-columns: 1fr; gap: 8px; }
  .edu__date { padding-top: 0; }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  .wrap { padding-inline: 18px; }
  .hero__actions .btn { flex: 1 1 auto; justify-content: center; }
  .brandmark { gap: 14px; }
  .brandmark__mono { padding-right: 14px; }
  .certbar__inner { grid-template-columns: 1fr; }
  .certbar__item { box-shadow: 0 1px 0 rgba(255,255,255,.16); padding: 16px 0; }
  .cstrip { flex-direction: column; align-items: flex-start; }
  .stats { grid-template-columns: 1fr; }
  .tl__head { flex-direction: column; }
  .footer__inner { justify-content: center; text-align: center; }
}

/* ---------- Print ---------- */
@media print {
  .nav, .hero__grid-bg, .hero__actions, .footer__note { display: none; }
  body { background: #fff; color: #000; }
  .section, .hero { padding: 24px 0; }
  .reveal { opacity: 1; transform: none; }
}