:root {
  --ink: #161616;
  --ink-muted: #161616bd;
  --ink-subtle: #16161699;
  --surface: #fff;
  --base: #f7f5ee;
  --grid: #1616160e;
  --accent: #facc00;
  --border: #161616;
  --bw: 2px;
  --shadow: 4px 4px 0 0 var(--border);
  --shadow-lg: 6px 6px 0 0 var(--border);
  --r-card: 14px;
  --r-chip: 8px;
  --pad-blue: #bfe3ff;
  --pad-green: #c7efc9;
  --pad-pink: #ffc9de;
  --pad-yellow: #ffe9a8;
  --gutter: clamp(1rem, 5vw, 5rem);
  --measure: 62ch;
  --fs-mega: clamp(3.5rem, 14vw, 10.5rem);
  --fs-heading: clamp(1.5rem, 3vw, 2.25rem);
  --font: "Space Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #f2efe6; --ink-muted: #f2efe6c4; --ink-subtle: #f2efe699;
    --surface: #1d1d1b; --base: #121211; --grid: #f2efe60d; --border: #f2efe6;
    --pad-blue: #1f3a52; --pad-green: #1f4226; --pad-pink: #4d2233; --pad-yellow: #4a3d10;
  }
}
:root[data-theme="dark"] {
  --ink: #f2efe6; --ink-muted: #f2efe6c4; --ink-subtle: #f2efe699;
  --surface: #1d1d1b; --base: #121211; --grid: #f2efe60d; --border: #f2efe6;
  --pad-blue: #1f3a52; --pad-green: #1f4226; --pad-pink: #4d2233; --pad-yellow: #4a3d10;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  color: var(--ink);
  background-color: var(--base);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px;
  font: 400 1.0625rem/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* ---------- shared bits ---------- */
.box {
  background: var(--surface);
  border: var(--bw) solid var(--border);
  border-radius: var(--r-card);
  box-shadow: var(--shadow);
}
.btn {
  display: inline-flex; align-items: center; gap: .5em;
  padding: .7em 1.2em;
  font: 600 1rem var(--font); color: var(--ink); text-decoration: none;
  background: var(--surface);
  border: var(--bw) solid var(--border); border-radius: 999px;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform .12s, box-shadow .12s;
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-lg); }
.btn:active { transform: translate(2px, 2px); box-shadow: 0 0 0 0 var(--border); }
.btn.primary { background: var(--accent); color: #161616; }
.chip {
  display: inline-flex; align-items: center; gap: .4em;
  padding: .3em .7em;
  font: 500 .875rem var(--font);
  border: var(--bw) solid var(--border); border-radius: var(--r-chip);
  background: var(--surface);
}
.label {
  font: 500 .8125rem var(--mono);
  text-transform: uppercase; letter-spacing: .08em;
  color: var(--ink-subtle);
}
.pad-blue { background: var(--pad-blue); }
.pad-green { background: var(--pad-green); }
.pad-pink { background: var(--pad-pink); }
.pad-yellow { background: var(--pad-yellow); }
.icon {
  width: 1.15em; height: 1.15em; flex: none;
  background: currentColor;
  -webkit-mask: var(--src) center / contain no-repeat;
  mask: var(--src) center / contain no-repeat;
}
.icon-letter {
  display: inline-grid; place-items: center;
  width: 1.15em; height: 1.15em; flex: none;
  font: 700 .75em var(--font); color: var(--surface); background: var(--ink); border-radius: 4px;
}

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 14px var(--gutter);
  background: color-mix(in srgb, var(--base) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: var(--bw) solid var(--border);
}
.logo {
  display: grid; place-items: center;
  width: 40px; height: 40px;
  font-weight: 700; text-decoration: none;
  background: var(--accent); color: #161616;
  border: var(--bw) solid var(--border); border-radius: 10px;
}
.nav ul { display: flex; gap: 1.5rem; margin: 0; padding: 0; list-style: none; }
.nav ul a { text-decoration: none; font-weight: 500; }
.nav ul a:hover { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 4px; }
.nav .right { display: flex; gap: .6rem; align-items: center; }
.theme-toggle { width: 40px; height: 40px; padding: 0; justify-content: center; box-shadow: none; }
@media (max-width: 860px) { .nav ul { display: none; } }

/* ---------- page sections ---------- */
main { padding: 0 var(--gutter); }
section { max-width: 1200px; margin: 0 auto; padding: clamp(3.5rem, 9vw, 7rem) 0; }
section > .label { display: block; margin-bottom: .6rem; }
h2 { margin: 0 0 2rem; font-size: var(--fs-heading); line-height: 1.15; letter-spacing: -.02em; }
h3 { margin: 0; letter-spacing: -.01em; }

.hero { padding-top: clamp(2.5rem, 7vw, 5rem); }
.hero .loc { display: inline-flex; align-items: center; gap: .5em; }
.hero .loc::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 0 3px #22c55e33; }
.mega {
  margin: 1.2rem 0 .4rem;
  font-size: var(--fs-mega); font-weight: 700; line-height: .88; letter-spacing: -.055em;
}
.mega span { display: block; }
.mega span:last-child { -webkit-text-stroke: var(--bw) var(--ink); color: transparent; }
.hero .role { display: inline-block; margin: 1.2rem 0 .8rem; padding: .15em .5em; background: var(--accent); color: #161616; font-weight: 700; font-size: clamp(1.1rem, 2.4vw, 1.5rem); border: var(--bw) solid var(--border); transform: rotate(-1deg); }
.hero .tagline { max-width: var(--measure); font-size: clamp(1.05rem, 1.8vw, 1.25rem); color: var(--ink-muted); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin: 2.5rem 0; }
.stat { padding: 1rem 1.2rem; }
.stat strong { display: block; font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1; letter-spacing: -.03em; }
.stat span { font-size: .9rem; color: var(--ink-muted); }
.cta { display: flex; flex-wrap: wrap; gap: .9rem; }
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, 1fr); } }

.about { display: grid; grid-template-columns: 1fr 1.4fr; gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.about .portrait { aspect-ratio: 4 / 5; display: grid; place-items: center; overflow: hidden; font-size: clamp(4rem, 12vw, 8rem); font-weight: 700; transform: rotate(-2deg); }
.about .portrait picture, .about .portrait img { display: block; width: 100%; height: 100%; object-fit: cover; }
.about p { max-width: var(--measure); margin: 0 0 1rem; }
.about h2 { margin-bottom: 1.2rem; }
@media (max-width: 760px) { .about { grid-template-columns: 1fr; } .about .portrait { max-width: 260px; } }

.services { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.2rem; margin-bottom: 2rem; }
.service { display: flex; flex-direction: column; padding: 1.4rem; }
.service h3 { margin: .5rem 0 .6rem; font-size: 1.3rem; letter-spacing: -.02em; }
.service p { margin: 0 0 1rem; }
.service .proof { margin: auto 0 0; padding-top: .8rem; border-top: var(--bw) dashed var(--border); font-size: .92rem; font-weight: 600; }

.toolbox { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.2rem; }
.toolbox .box { padding: 1.2rem; }
.toolbox h3 { margin-bottom: .9rem; font-size: 1.1rem; }
.toolbox ul { display: flex; flex-wrap: wrap; gap: .5rem; margin: 0; padding: 0; list-style: none; }

.job { margin-bottom: 1rem; }
.job summary { display: grid; grid-template-columns: 1fr auto; gap: .4rem 1rem; padding: 1.2rem 1.4rem; cursor: pointer; list-style: none; }
.job summary::-webkit-details-marker { display: none; }
.job summary h3 { font-size: 1.3rem; }
.job summary .meta { text-align: right; font: .85rem var(--mono); color: var(--ink-subtle); }
.job summary p { grid-column: 1 / -1; margin: 0; color: var(--ink-muted); }
.job .body { padding: 0 1.4rem 1.3rem; }
.job .body ul { margin: 0 0 1rem; padding-left: 1.2rem; }
.job .tags { display: flex; flex-wrap: wrap; gap: .4rem; }

.work { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.5rem; }
.project { display: flex; flex-direction: column; padding: 1.5rem; transition: transform .15s, box-shadow .15s; }
.project:hover { transform: translate(-3px, -3px); box-shadow: var(--shadow-lg); }
.project h3 { margin: .6rem 0 .2rem; font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -.03em; }
.project .kicker { margin: 0 0 1rem; font-weight: 600; }
.project p { margin: 0 0 1rem; }
.project ul { margin: 0 0 1.2rem; padding-left: 1.2rem; color: var(--ink-muted); font-size: .97rem; }
.project .tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: auto; }
.project .open { margin-top: 1.2rem; align-self: flex-start; }
.sub { margin: -1.2rem 0 2rem; color: var(--ink-muted); max-width: var(--measure); }

.certs { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.2rem; }
.cert { display: flex; gap: 1rem; align-items: center; padding: 1.2rem; text-decoration: none; }
.cert .seal { display: grid; place-items: center; flex: none; width: 52px; height: 52px; border-radius: 50%; border: var(--bw) solid var(--border); font-size: 1.4rem; }
.cert strong { display: block; }
.cert span { color: var(--ink-muted); font-size: .92rem; }

.contact { text-align: center; }
.contact .big { display: inline-block; margin: 1rem 0 1.5rem; font-size: clamp(1.5rem, 5vw, 3.5rem); font-weight: 700; letter-spacing: -.03em; text-decoration-thickness: 4px; text-underline-offset: 8px; }
.contact .big .icon { display: inline-block; vertical-align: -.12em; margin-right: .1em; }
.contact .big:hover { background: var(--accent); color: #161616; }
.contact p { max-width: var(--measure); margin: 0 auto 1.5rem; color: var(--ink-muted); }
.teaser { max-width: 720px; margin: 4rem auto 0; padding: 1.6rem; text-align: left; transform: rotate(-.6deg); }
.teaser h3 { font-size: 1.4rem; margin-bottom: .4rem; }
.teaser p { margin: 0 0 1rem; text-align: left; }

footer.site { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; padding: 1.5rem var(--gutter); border-top: var(--bw) solid var(--border); font: .85rem var(--mono); color: var(--ink-subtle); }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}