/* ==========================================================================
   nobrega.com.br — no framework, no webfonts, no third-party requests.
   ========================================================================== */

/* ---------- tokens ---------- */
:root {
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
          Arial, "Noto Sans", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
          "Liberation Mono", monospace;

  --measure: 74rem;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --radius: 14px;
  --radius-sm: 9px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0a0e13;
  --bg-soft: #0e141c;
  --surface: rgba(255, 255, 255, 0.026);
  --surface-hi: rgba(255, 255, 255, 0.05);
  --line: rgba(255, 255, 255, 0.09);
  --line-hi: rgba(255, 255, 255, 0.17);
  --ink: #e7eef5;
  --ink-dim: #a3b1c2;
  --ink-mute: #6f7f92;
  --accent: #2dd4bf;
  --accent-ink: #04211d;
  --accent-soft: rgba(45, 212, 191, 0.13);
  --warm: #f0a94c;
  --warm-soft: rgba(240, 169, 76, 0.13);
  --glow-a: rgba(45, 212, 191, 0.11);
  --glow-b: rgba(56, 116, 203, 0.11);
  --dot: rgba(255, 255, 255, 0.05);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 34px -14px rgba(0, 0, 0, 0.7);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #fbfcfd;
  --bg-soft: #f2f5f8;
  --surface: rgba(9, 30, 52, 0.022);
  --surface-hi: rgba(9, 30, 52, 0.045);
  --line: rgba(9, 30, 52, 0.11);
  --line-hi: rgba(9, 30, 52, 0.2);
  --ink: #101b26;
  --ink-dim: #435264;
  --ink-mute: #6d7d90;
  --accent: #0d8f80;
  --accent-ink: #ffffff;
  --accent-soft: rgba(13, 143, 128, 0.1);
  --warm: #b26a12;
  --warm-soft: rgba(178, 106, 18, 0.1);
  --glow-a: rgba(13, 143, 128, 0.1);
  --glow-b: rgba(56, 116, 203, 0.09);
  --dot: rgba(9, 30, 52, 0.055);
  --shadow: 0 1px 2px rgba(9, 30, 52, 0.05), 0 12px 30px -16px rgba(9, 30, 52, 0.2);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 clamp(1rem, 0.96rem + 0.2vw, 1.0625rem) / 1.68 var(--sans);
  letter-spacing: 0.0025em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 { margin: 0; line-height: 1.14; letter-spacing: -0.021em; font-weight: 650; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img { display: block; max-width: 100%; height: auto; }
svg { display: block; }

a { color: var(--accent); text-decoration-color: color-mix(in srgb, var(--accent) 42%, transparent); text-underline-offset: 0.19em; }
a:hover { text-decoration-color: currentColor; }

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

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

.skip-link {
  position: fixed; top: 0; left: 50%; z-index: 100;
  transform: translate(-50%, -110%);
  padding: 0.7rem 1.2rem;
  background: var(--accent); color: var(--accent-ink);
  font-weight: 600; text-decoration: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  transition: transform 0.18s var(--ease);
}
.skip-link:focus-visible { transform: translate(-50%, 0); }

.scroll-sentinel { position: absolute; top: 0; height: 1px; width: 1px; }

/* ---------- ambient backdrop ---------- */
.backdrop {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(58rem 40rem at 78% -12%, var(--glow-a), transparent 68%),
    radial-gradient(52rem 38rem at 4% 8%, var(--glow-b), transparent 66%),
    radial-gradient(var(--dot) 1px, transparent 1px);
  background-size: auto, auto, 26px 26px;
}

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
@supports (backdrop-filter: blur(1px)) {
  .site-header { backdrop-filter: saturate(150%) blur(14px); }
}
.site-header.is-stuck { border-bottom-color: var(--line); box-shadow: 0 8px 26px -22px rgba(0, 0, 0, 0.9); }

.header-inner { display: flex; align-items: center; gap: 1rem; min-height: 64px; }

.brand { display: flex; align-items: center; gap: 0.7rem; color: inherit; text-decoration: none; margin-right: auto; }
.brand-mark {
  display: grid; place-items: center;
  width: 34px; height: 34px; flex: none;
  border-radius: 10px;
  border: 1px solid var(--line-hi);
  background: var(--accent-soft);
  color: var(--accent);
  font: 700 0.72rem/1 var(--mono); letter-spacing: 0.04em;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: 0.95rem; font-weight: 640; letter-spacing: -0.01em; }
.brand-text small { color: var(--ink-mute); font: 400 0.7rem/1.3 var(--mono); letter-spacing: 0.02em; }

.nav-links { display: flex; gap: 0.15rem; }
.nav-links a {
  padding: 0.45rem 0.7rem; border-radius: 8px;
  color: var(--ink-dim); text-decoration: none;
  font-size: 0.875rem; font-weight: 500;
  transition: color 0.15s, background 0.15s;
}
.nav-links a:hover { color: var(--ink); background: var(--surface-hi); }
.nav-links a.is-active { color: var(--accent); background: var(--accent-soft); }

.theme-toggle {
  display: grid; place-items: center;
  width: 36px; height: 36px; flex: none; padding: 0;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--surface); color: var(--ink-dim);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--line-hi); background: var(--surface-hi); }
.theme-toggle svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; }
:root[data-theme="dark"] .icon-sun { display: block; }
:root[data-theme="dark"] .icon-moon { display: none; }
:root[data-theme="light"] .icon-sun { display: none; }
:root[data-theme="light"] .icon-moon { display: block; }

/* ---------- hero ---------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  padding-block: clamp(3.5rem, 9vw, 7rem) clamp(2.5rem, 6vw, 4.5rem);
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.55rem;
  margin-bottom: 1.5rem; padding: 0.34rem 0.8rem 0.34rem 0.7rem;
  border: 1px solid var(--line); border-radius: 999px;
  background: var(--surface);
  color: var(--ink-dim);
  font: 500 0.755rem/1 var(--mono); letter-spacing: 0.045em; text-transform: uppercase;
}
.pulse {
  width: 7px; height: 7px; flex: none; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent);
  animation: pulse 2.6s var(--ease) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 60%, transparent); }
  70%  { box-shadow: 0 0 0 9px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.hero h1 {
  font-size: clamp(2.9rem, 1.6rem + 5.6vw, 5.4rem);
  font-weight: 680;
  letter-spacing: -0.035em;
  margin-bottom: clamp(1.1rem, 2.4vw, 1.7rem);
  background: linear-gradient(168deg, var(--ink) 26%, color-mix(in srgb, var(--ink) 56%, var(--accent)) 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

.lede {
  font-size: clamp(1.1rem, 1.02rem + 0.42vw, 1.32rem);
  line-height: 1.58; color: var(--ink);
  max-width: 40ch; margin-bottom: 1.1rem;
}
.sub { color: var(--ink-dim); max-width: 52ch; }

.hero-links { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 2.1rem; }

.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.66rem 1.15rem;
  border: 1px solid var(--line-hi); border-radius: 10px;
  background: var(--surface);
  color: var(--ink); text-decoration: none;
  font-size: 0.905rem; font-weight: 550;
  transition: transform 0.16s var(--ease), border-color 0.16s, background 0.16s, color 0.16s;
}
.btn:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.btn svg { width: 16px; height: 16px; fill: currentColor; }
.btn-primary {
  background: var(--accent); border-color: var(--accent); color: var(--accent-ink);
  font-weight: 620;
}
.btn-primary:hover { color: var(--accent-ink); background: color-mix(in srgb, var(--accent) 86%, white); }

/* portrait */
.hero-portrait { display: grid; gap: 1.3rem; justify-items: center; }
.portrait-frame {
  width: min(100%, 19rem); aspect-ratio: 1; overflow: hidden;
  border-radius: 20px;
  border: 1px solid var(--line-hi);
  box-shadow: var(--shadow), 0 0 0 7px var(--accent-soft);
}
.portrait-frame img {
  width: 100%; height: 100%; object-fit: cover;
  object-position: 34% 34%;
  transform: scale(1.34); transform-origin: 34% 34%;
  filter: saturate(1.03);
}
.portrait-meta {
  display: grid; gap: 0.55rem; margin: 0;
  width: min(100%, 19rem);
  padding: 0.95rem 1.05rem;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface);
}
.portrait-meta > div { display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; }
.portrait-meta dt { color: var(--ink-mute); font: 500 0.71rem/1.4 var(--mono); letter-spacing: 0.05em; text-transform: uppercase; }
.portrait-meta dd { margin: 0; font-size: 0.84rem; font-weight: 540; text-align: right; }

/* ---------- stats ---------- */
/* .stats-section carries the page gutter; .stats is the visual box. Keeping both on
   one element painted --line across the gutter padding, faking empty edge cells. */
.stats-section { margin-bottom: clamp(2rem, 6vw, 4rem); }
.stats {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--line);
  overflow: hidden;
}
.stat { display: grid; gap: 0.35rem; padding: 1.5rem 1.4rem; background: var(--bg); }
.stat-n {
  font: 620 clamp(1.5rem, 1.2rem + 1.1vw, 2.05rem)/1 var(--mono);
  letter-spacing: -0.03em; color: var(--accent);
}
.stat-l { color: var(--ink-dim); font-size: 0.845rem; line-height: 1.45; }

/* ---------- signature result ---------- */
/* Grid must never leave an empty cell: the container background is --line to fake
   1px dividers, so a blank cell would render as a solid coloured block. */
.proof {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.2rem);
  align-items: center;
  padding: clamp(1.5rem, 3.6vw, 2.6rem);
  border: 1px solid var(--line-hi); border-radius: 20px;
  background:
    radial-gradient(30rem 18rem at 0% 0%, var(--accent-soft), transparent 70%),
    var(--surface);
}
.proof-figures {
  display: grid; gap: 1.1rem;
  padding-right: clamp(1.3rem, 3vw, 2.4rem);
  border-right: 1px solid var(--line);
}
.proof-fig { display: grid; gap: 0.25rem; }
.proof-n {
  font: 640 clamp(2.3rem, 1.8rem + 2.3vw, 3.5rem)/1 var(--mono);
  letter-spacing: -0.045em; color: var(--accent);
}
.proof-cap {
  color: var(--ink-mute);
  font: 500 0.73rem/1 var(--mono); letter-spacing: 0.07em; text-transform: uppercase;
}
.proof-body h2 { font-size: clamp(1.35rem, 1.15rem + 0.9vw, 1.85rem); margin-bottom: 0.85rem; }
.proof-body p { color: var(--ink-dim); font-size: 0.945rem; }
.proof-body p + p { margin-top: 0.8rem; }
.proof-body strong { color: var(--ink); font-weight: 620; }

/* ---------- sections ---------- */
.section { padding-block: clamp(3rem, 7vw, 5.5rem); }
/* Clear the sticky header when jumping to an anchor. */
main > section[id] { scroll-margin-top: 5.25rem; }
.section-head { margin-bottom: clamp(1.8rem, 4vw, 2.9rem); }
.section-head h2 {
  display: flex; align-items: baseline; gap: 0.85rem;
  font-size: clamp(1.6rem, 1.3rem + 1.3vw, 2.3rem);
}
.h2-num {
  color: var(--accent);
  font: 500 0.8rem/1 var(--mono); letter-spacing: 0.08em;
  padding-top: 0.4em;
}
.section-note { margin-top: 0.8rem; color: var(--ink-mute); font-size: 0.95rem; max-width: 58ch; }

.card {
  padding: clamp(1.25rem, 2.4vw, 1.7rem);
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface);
  transition: transform 0.22s var(--ease), border-color 0.22s, background 0.22s, box-shadow 0.22s;
}
.card h3 { font-size: 1.055rem; margin-bottom: 0.6rem; }
.card p { color: var(--ink-dim); font-size: 0.925rem; }
.card:hover { transform: translateY(-3px); border-color: var(--line-hi); background: var(--surface-hi); box-shadow: var(--shadow); }

.now-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 1rem; }

/* ---------- timeline ---------- */
.timeline { position: relative; display: grid; gap: clamp(1.9rem, 4vw, 2.9rem); padding-left: 2rem; }
.timeline::before {
  content: ""; position: absolute; left: 5px; top: 0.6rem; bottom: 0.6rem; width: 1px;
  background: linear-gradient(to bottom, var(--accent), var(--line) 22%, var(--line) 82%, transparent);
}
.timeline > li { position: relative; }
.timeline > li::before {
  content: ""; position: absolute; left: -2rem; top: 0.42rem;
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--line-hi);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.timeline > li:first-child::before { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.timeline > li:hover::before { border-color: var(--accent); }

.tl-date { color: var(--ink-mute); font: 500 0.76rem/1.4 var(--mono); letter-spacing: 0.045em; text-transform: uppercase; margin-bottom: 0.4rem; }
.timeline h3 { font-size: 1.16rem; margin-bottom: 0.32rem; }
.tl-org { color: var(--accent); font-size: 0.88rem; font-weight: 520; margin-bottom: 0.85rem; }
.tl-sep { color: var(--ink-mute); padding-inline: 0.28rem; font-weight: 400; }
.timeline ul { display: grid; gap: 0.52rem; }
.timeline ul li { position: relative; padding-left: 1.15rem; color: var(--ink-dim); font-size: 0.93rem; }
.timeline ul li::before {
  content: ""; position: absolute; left: 0; top: 0.66em;
  width: 5px; height: 1.5px; background: var(--accent); opacity: 0.65;
}

/* ---------- projects ---------- */
.proj-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr)); gap: 1rem; }
.proj-when, .vol-when {
  color: var(--ink-mute); font: 500 0.735rem/1 var(--mono);
  letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 0.7rem;
}
.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1.05rem; }
.tags span {
  padding: 0.22rem 0.6rem; border-radius: 999px;
  border: 1px solid var(--line); background: var(--bg-soft);
  color: var(--ink-mute); font: 500 0.72rem/1.5 var(--mono); letter-spacing: 0.02em;
}

/* ---------- repos ---------- */
.repo-list { display: grid; gap: 0.6rem; }
.repo-list a {
  display: grid; grid-template-columns: minmax(11rem, auto) 1fr auto;
  align-items: baseline; gap: 0.5rem 1.4rem;
  padding: 1.05rem 1.25rem;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--surface);
  color: inherit; text-decoration: none;
  transition: transform 0.18s var(--ease), border-color 0.18s, background 0.18s;
}
.repo-list a:hover { transform: translateX(4px); border-color: var(--accent); background: var(--accent-soft); }
.repo-name { font: 600 0.925rem/1.5 var(--mono); color: var(--accent); letter-spacing: -0.01em; }
.repo-desc { color: var(--ink-dim); font-size: 0.895rem; line-height: 1.55; }
.repo-lang {
  display: inline-flex; align-items: center; gap: 0.42rem;
  color: var(--ink-mute); font: 500 0.735rem/1 var(--mono); white-space: nowrap;
}
.repo-lang::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ink-mute); }
.repo-lang[data-lang="JavaScript"]::before { background: #f1e05a; }
.repo-lang[data-lang="Kotlin"]::before { background: #a97bff; }
.repo-lang[data-lang="Python"]::before { background: #3572a5; }
.repo-lang[data-lang="C++"]::before { background: #f34b7d; }
.repo-lang[data-lang="Lua"]::before { background: #000080; }
.repo-lang[data-lang="HTML"]::before { background: #e34c26; }

/* ---------- stack ---------- */
.stack-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: clamp(1.4rem, 3vw, 2.2rem); }
.stack-group h3 {
  font: 600 0.775rem/1 var(--mono); letter-spacing: 0.075em; text-transform: uppercase;
  color: var(--ink-mute); margin-bottom: 0.95rem;
  padding-bottom: 0.7rem; border-bottom: 1px solid var(--line);
}
.chips { display: flex; flex-wrap: wrap; gap: 0.42rem; }
.chips li {
  padding: 0.34rem 0.72rem; border-radius: 8px;
  border: 1px solid var(--line); background: var(--surface);
  font-size: 0.83rem; color: var(--ink-dim);
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.chips li:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }

/* ---------- volunteering ---------- */
.vol-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr)); gap: 1rem; }
.vol h3 { margin-bottom: 0.25rem; }
.vol-org { color: var(--accent); font-size: 0.865rem; font-weight: 520; margin-bottom: 0.8rem; }
.vol-accent { border-color: color-mix(in srgb, var(--warm) 42%, var(--line)); background: var(--warm-soft); }
.vol-accent .vol-org, .vol-accent .vol-when { color: var(--warm); }
.vol-accent:hover { border-color: var(--warm); }

/* ---------- writing ---------- */
.write-list { display: grid; gap: 1px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--line); overflow: hidden; }
.write-list a {
  display: grid; grid-template-columns: 7.5rem 1fr; align-items: baseline; gap: 1rem;
  padding: 1.1rem 1.3rem; background: var(--bg);
  color: inherit; text-decoration: none;
  transition: background 0.16s, color 0.16s;
}
.write-list a:hover { background: var(--accent-soft); }
.write-list a:hover .write-title { color: var(--accent); }
.write-date { color: var(--ink-mute); font: 500 0.755rem/1.5 var(--mono); letter-spacing: 0.045em; text-transform: uppercase; }
.write-title { font-size: 0.965rem; font-weight: 530; transition: color 0.16s; }

/* ---------- credentials ---------- */
.cred-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr)); gap: clamp(1.8rem, 4vw, 3.2rem); }
.cred-h {
  font: 600 0.775rem/1 var(--mono); letter-spacing: 0.075em; text-transform: uppercase;
  color: var(--ink-mute); margin-bottom: 1rem; padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line);
}
.cred-h + .cred-list { margin-bottom: 2.4rem; }
.cred-list { display: grid; gap: 1.05rem; }
.cred-list li { display: grid; grid-template-columns: 6.2rem 1fr; gap: 0.15rem 1rem; align-items: baseline; }
.cred-year { grid-row: span 2; color: var(--ink-mute); font: 500 0.755rem/1.6 var(--mono); letter-spacing: 0.03em; }
.cred-main { font-size: 0.945rem; font-weight: 540; }
.cred-sub { grid-column: 2; color: var(--ink-mute); font-size: 0.83rem; line-height: 1.5; }

/* ---------- contact ---------- */
.contact-card {
  padding: clamp(2rem, 5vw, 3.4rem);
  border: 1px solid var(--line-hi); border-radius: 20px;
  background:
    radial-gradient(34rem 20rem at 8% 0%, var(--accent-soft), transparent 70%),
    var(--surface);
  text-align: center;
}
.contact-card h2 { font-size: clamp(1.65rem, 1.3rem + 1.5vw, 2.4rem); margin-bottom: 0.9rem; }
.contact-card p { color: var(--ink-dim); max-width: 48ch; margin-inline: auto; }
.contact-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.7rem; margin-top: 1.9rem; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); margin-top: clamp(2.5rem, 6vw, 4.5rem); }
.footer-inner {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.6rem 1.5rem;
  padding-block: 2rem;
  color: var(--ink-mute); font-size: 0.83rem;
}
.footer-tech { font-family: var(--mono); font-size: 0.755rem; letter-spacing: 0.01em; }

/* ---------- reveal ---------- */
/* Scoped to :root.js so a no-JS visitor sees the content instead of blank space. */
:root.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.62s var(--ease), transform 0.62s var(--ease);
}
:root.js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 404 ---------- */
.oops {
  min-height: 72vh;
  display: grid; place-content: center; justify-items: center;
  gap: 1.1rem; text-align: center;
  padding-block: clamp(3rem, 10vw, 7rem);
}
.oops-code { font: 620 clamp(4rem, 14vw, 8.5rem)/0.9 var(--mono); letter-spacing: -0.05em; color: var(--accent); }
.oops h1 { font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.1rem); }
.oops p { color: var(--ink-dim); max-width: 42ch; }

/* ==========================================================================
   responsive
   ========================================================================== */
@media (max-width: 62rem) {
  .hero { grid-template-columns: 1fr; padding-block: clamp(2.5rem, 8vw, 4rem) 2.5rem; }
  .hero-portrait { order: -1; justify-items: start; }
  .portrait-frame { width: min(60%, 13rem); }
  .portrait-meta { display: none; }
  .proof { grid-template-columns: 1fr; }
  .proof-figures {
    grid-auto-flow: column; justify-content: start; gap: clamp(2rem, 6vw, 3.2rem);
    padding-right: 0; padding-bottom: 1.3rem;
    border-right: 0; border-bottom: 1px solid var(--line);
  }
  .repo-list a { grid-template-columns: 1fr auto; }
  .repo-desc { grid-column: 1 / -1; }
}

@media (max-width: 46rem) {
  /* Keep the nav reachable on phones: monogram only, nav becomes a swipeable strip. */
  .brand-text { display: none; }
  .nav-links {
    flex: 1 1 auto; min-width: 0;
    overflow-x: auto; overscroll-behavior-x: contain;
    scrollbar-width: none; -ms-overflow-style: none;
    -webkit-mask-image: linear-gradient(to right, transparent 0, #000 0.55rem, #000 calc(100% - 1.1rem), transparent 100%);
    mask-image: linear-gradient(to right, transparent 0, #000 0.55rem, #000 calc(100% - 1.1rem), transparent 100%);
  }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a { flex: none; white-space: nowrap; }
  /* 3 short tiles get too narrow below this; go single column rather than orphan a cell. */
  .stats { grid-template-columns: 1fr; }
  .write-list a { grid-template-columns: 1fr; gap: 0.3rem; }
  .cred-list li { grid-template-columns: 1fr; }
  .cred-year { grid-row: auto; }
  .cred-sub { grid-column: 1; }
  .timeline { padding-left: 1.5rem; }
  .timeline > li::before { left: -1.5rem; }
}

@media (max-width: 30rem) {
  .proof-figures { grid-auto-flow: row; justify-content: stretch; }
  .hero-links .btn, .contact-links .btn { flex: 1 1 100%; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}

/* ==========================================================================
   print — the page doubles as a clean one-file resume
   ========================================================================== */
@media print {
  /* The theme lives on <html data-theme>, so the dark tokens survive into print and
     render body copy near-white on white. Restate every token at equal specificity. */
  :root, :root[data-theme="dark"], :root[data-theme="light"] {
    color-scheme: light;
    --bg: #fff; --bg-soft: #fff;
    --surface: transparent; --surface-hi: transparent;
    --line: #c7ccd3; --line-hi: #9aa2ac;
    --ink: #000; --ink-dim: #1c2126; --ink-mute: #55606c;
    --accent: #000; --accent-ink: #fff; --accent-soft: transparent;
    --warm: #000; --warm-soft: transparent;
    --glow-a: transparent; --glow-b: transparent; --dot: transparent;
    --shadow: none;
  }
  .pulse { display: none; }
  .stats, .stat, .chips li, .tags span, .write-list a, .vol-accent { background: none !important; }
  .backdrop, .site-header, .theme-toggle, .skip-link, .hero-links,
  .contact-links .btn:not(:first-child), .footer-tech { display: none !important; }

  body { background: #fff; color: #000; font-size: 10.5pt; line-height: 1.45; }
  a { color: #000; text-decoration: none; }
  .wrap { max-width: none; padding-inline: 0; }
  .section { padding-block: 0 0.7rem; break-inside: avoid; }
  .hero { display: block; padding-block: 0 1rem; }
  .hero h1 { -webkit-text-fill-color: #000; color: #000; background: none; font-size: 24pt; }
  .hero-portrait { display: none; }
  .lede, .sub { max-width: none; }
  .card, .repo-list a, .write-list a, .stats, .contact-card, .proof {
    border-color: #bbb !important; background: none !important; box-shadow: none !important;
  }
  .h2-num, .stat-n, .tl-org, .vol-org, .repo-name, .proof-n { color: #000 !important; }
  .timeline > li, .card, .repo-list li, .cred-list li, .proof { break-inside: avoid; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .now-grid, .proj-grid, .vol-grid { grid-template-columns: repeat(2, 1fr); }
}