/* ==========================================================================
   tou.gg — design system
   Ink navy, one weld accent, three type families, motion that never blocks text.
   Authored by hand. No framework, no build step for this file.
   ========================================================================== */

/* --- Typefaces: self-hosted, subset to latin, swap so text paints first ---- */
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:500;font-display:swap;src:url("/fonts/space-grotesk-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:700;font-display:swap;src:url("/fonts/space-grotesk-latin-700-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url("/fonts/inter-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url("/fonts/inter-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:700;font-display:swap;src:url("/fonts/inter-latin-700-normal.woff2") format("woff2")}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:400;font-display:swap;src:url("/fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:500;font-display:swap;src:url("/fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:700;font-display:swap;src:url("/fonts/jetbrains-mono-latin-700-normal.woff2") format("woff2")}

/* Cyrillic, loaded only when a page actually paints Cyrillic glyphs.
   Space Grotesk has no Cyrillic at all, so the display stack falls through to
   Inter for Russian headings — one fallback, on purpose, not by accident. */
@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url("/fonts/inter-cyrillic-400-normal.woff2") format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url("/fonts/inter-cyrillic-600-normal.woff2") format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Inter";font-style:normal;font-weight:700;font-display:swap;src:url("/fonts/inter-cyrillic-700-normal.woff2") format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:400;font-display:swap;src:url("/fonts/jetbrains-mono-cyrillic-400-normal.woff2") format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:500;font-display:swap;src:url("/fonts/jetbrains-mono-cyrillic-500-normal.woff2") format("woff2");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}

/* --- Tokens ---------------------------------------------------------------
   Every grey below clears WCAG AA on --bg at its intended size.
   --------------------------------------------------------------------------*/
:root {
  --bg:            #080b14;   /* page */
  --surface:       #0d1220;   /* cards */
  --surface-2:     #131a2b;   /* raised / inputs */
  --line:          #1d2637;   /* hairline */
  --line-strong:   #2b3650;

  --ink:           #e9eef8;   /* primary text     — 16.9:1 */
  --ink-muted:     #a6b2c6;   /* secondary text   —  8.6:1 */
  --ink-faint:     #7d8aa3;   /* labels, meta     —  5.4:1 */

  --weld:          #ff6b35;   /* the one accent   —  6.6:1 */
  --weld-hot:      #ffb347;
  --weld-ink:      #0a0e1a;   /* text on a weld fill */
  --ai:            #38d9ff;
  --ok:            #3ef29a;

  --seam: linear-gradient(90deg, var(--weld) 0%, var(--weld-hot) 100%);

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-pill: 999px;

  --shell: 1120px;
  --gutter: 20px;
  --rail: 168px;          /* width of the sticky section-label column */

  --font-display: "Space Grotesk", "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 0.42s;

  --header-h: 60px;
}

@media (width >= 768px) { :root { --gutter: 40px; --header-h: 68px; } }

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

html {
  background: var(--bg);
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
  overflow-x: clip;
}

body {
  margin: 0;
  min-height: 100dvh;
  background:
    radial-gradient(64rem 34rem at 76% -14%, rgba(255,107,53,.085), transparent 62%),
    radial-gradient(52rem 30rem at 4% 8%, rgba(56,217,255,.05), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  text-wrap: pretty;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: 700; letter-spacing: -0.03em; line-height: 1.08; text-wrap: balance; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
a svg, button svg, .more-link svg { flex: none; width: 1em; height: 1em; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
:focus-visible { outline: 2px solid var(--weld); outline-offset: 3px; border-radius: 3px; }
::selection { background: var(--weld); color: var(--weld-ink); }
:target { scroll-margin-top: calc(var(--header-h) + 24px); }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0;
}

.skip {
  position: fixed; top: -100px; left: var(--gutter); z-index: 100;
  padding: .6rem 1rem; background: var(--weld); color: var(--weld-ink);
  font: 500 .8125rem/1 var(--font-mono); border-radius: var(--r-sm);
  transition: top .2s var(--ease);
}
.skip:focus { top: 12px; }

/* --- Shell + section grid ------------------------------------------------- */
.shell { width: 100%; max-width: var(--shell); margin-inline: auto; padding-inline: var(--gutter); }

.band { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.band + .band { padding-top: 0; }
.page-head + .band { padding-top: clamp(1rem, 3vw, 2rem); }
.band-line { border-top: 1px solid var(--line); }

/* Label rail on the left, content on the right — fills wide screens without
   stretching a line of body text past a readable measure. */
.band-grid { display: grid; gap: 1.25rem clamp(1.5rem, 4vw, 3rem); }
@media (width >= 900px) {
  .band-grid { grid-template-columns: var(--rail) minmax(0, 1fr); }
  .band-grid > .kicker { position: sticky; top: calc(var(--header-h) + 28px); align-self: start; }
}

.kicker {
  display: flex; align-items: center; gap: .6rem;
  margin: 0; color: var(--weld);
  font: 500 .6875rem/1 var(--font-mono);
  letter-spacing: .16em; text-transform: uppercase;
}
.kicker::before { content: ""; flex: none; width: .9rem; height: 1px; background: currentColor; }
.kicker-plain { color: var(--ink-faint); }

.measure { max-width: 62ch; }

/* --- Header --------------------------------------------------------------- */
.hdr {
  position: sticky; top: 0; z-index: 60;
  height: var(--header-h);
  display: flex; align-items: center;
  transition: background-color .3s var(--ease), border-color .3s var(--ease), backdrop-filter .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.hdr.is-stuck {
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border-bottom-color: var(--line);
}
.hdr-in { display: flex; align-items: center; gap: 1rem; width: 100%; }

.brand {
  display: inline-flex; align-items: baseline; gap: .1em; flex: none;
  font: 700 1.0625rem/1 var(--font-mono); letter-spacing: -.02em; color: var(--ink);
}
.brand .caret { color: var(--weld); transition: transform .3s var(--ease); }
.brand:hover .caret { transform: translateX(3px); }

.nav { display: none; margin-inline: auto; gap: clamp(1rem, 2.4vw, 2rem); }
@media (width >= 860px) { .nav { display: flex; } }
.nav a {
  position: relative; padding-block: .35rem;
  font: 400 .875rem/1 var(--font-sans); color: var(--ink-muted);
  transition: color .2s var(--ease);
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--weld); transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.nav a:hover::after, .nav a:focus-visible::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }

.hdr-end { display: flex; align-items: center; gap: .5rem; margin-left: auto; }
@media (width >= 860px) { .hdr-end { margin-left: 0; } }

.langs { display: flex; align-items: center; gap: 1px; padding: 2px; background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--r-pill); }
.langs a {
  padding: .3rem .55rem; border-radius: var(--r-pill);
  font: 500 .6875rem/1 var(--font-mono); letter-spacing: .06em;
  color: var(--ink-faint); transition: color .2s var(--ease), background-color .2s var(--ease);
}
.langs a:hover { color: var(--ink); }
.langs a[aria-current="true"] { background: var(--weld); color: var(--weld-ink); }

.burger {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border: 1px solid var(--line); border-radius: var(--r-md);
  color: var(--ink-muted); background: var(--surface-2);
}
@media (width >= 860px) { .burger { display: none; } }
.burger svg { width: 18px; height: 18px; }
.burger[aria-expanded="true"] .i-open,
.burger[aria-expanded="false"] .i-close { display: none; }

.sheet {
  position: fixed; inset: var(--header-h) 0 auto 0; z-index: 55;
  padding: .75rem var(--gutter) 1.25rem;
  background: color-mix(in srgb, var(--bg) 96%, transparent);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.sheet[hidden] { display: none; }
.sheet a {
  display: flex; align-items: center; justify-content: space-between;
  padding: .85rem .25rem; border-bottom: 1px solid var(--line);
  font: 500 1.0625rem/1 var(--font-display); color: var(--ink);
}
.sheet a:last-child { border-bottom: 0; }
.sheet a span { font: 400 .75rem/1 var(--font-mono); color: var(--ink-faint); }
@media (prefers-reduced-motion: no-preference) {
  .sheet { animation: sheet-in .3s var(--ease) both; }
  @keyframes sheet-in { from { opacity: 0; transform: translateY(-8px); } }
}

/* --- Hero ----------------------------------------------------------------- */
.hero { padding-block: clamp(2.5rem, 7vw, 5rem) clamp(2.5rem, 6vw, 4rem); }
@media (width >= 1040px) {
  .hero { display: grid; grid-template-columns: minmax(0, 1fr) 21rem; column-gap: 2.75rem; align-items: end; }
  .hero > .avail, .hero > .hero-who, .hero > .wordmark { grid-column: 1; justify-self: start; }
  .hero-side { grid-column: 2; grid-row: 3; padding-bottom: 1rem; }
  .hero-side .hero-dek { margin-top: 0; max-width: none; font-size: 1.0625rem; }
  .hero-side .cta-row { margin-top: 1.5rem; display: grid; gap: .6rem; }
  .hero-side .btn { justify-content: space-between; }
}

.avail {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .34rem .7rem .34rem .55rem;
  border: 1px solid var(--line-strong); border-radius: var(--r-pill);
  background: var(--surface);
  font: 400 .75rem/1.2 var(--font-mono); color: var(--ink-muted);
}
.avail .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); flex: none; }
@media (prefers-reduced-motion: no-preference) {
  .avail .dot { animation: pulse 2.4s var(--ease) infinite; }
  @keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(62,242,154,.45); } 50% { box-shadow: 0 0 0 5px rgba(62,242,154,0); } }
}

.hero-who { margin-top: 1.5rem; font: 400 .8125rem/1 var(--font-mono); letter-spacing: .04em; color: var(--ink-faint); }
.hero-who b { color: var(--ink-muted); font-weight: 500; }

/* The wordmark. Height is reserved so the type animation cannot shift layout. */
.wordmark {
  margin-top: .6rem;
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(3.4rem, 13.5vw, 10.5rem);
  line-height: 1;
  letter-spacing: -.055em;
  display: flex; align-items: baseline; min-height: 1.06em;
}
.wordmark .tou { position: relative; display: inline-flex; }
.wordmark .ch { display: inline-block; will-change: transform; }
.wordmark .dot { color: var(--weld); }
.wordmark .gg { color: var(--weld); }
.wordmark .caret {
  display: none; width: .075em; height: .82em; margin-left: .06em;
  background: var(--weld); align-self: center;
}
.wordmark.is-typing .caret { display: inline-block; }
@media (prefers-reduced-motion: no-preference) {
  .wordmark.is-typing .caret { animation: blink 1s steps(2, start) infinite; }
  @keyframes blink { 50% { opacity: 0; } }
}
.wordmark .ch.is-ghost { color: var(--ink-muted); }
.wordmark .ch.is-falling { position: absolute; top: 0; color: var(--weld); pointer-events: none; }

.hero-dek {
  margin-top: 1.4rem; max-width: 34ch;
  font-size: clamp(1.0625rem, 2.3vw, 1.375rem); line-height: 1.45; color: var(--ink);
  letter-spacing: -.011em;
}
.hero-tag { margin-top: .7rem; font: 400 .8125rem/1 var(--font-mono); color: var(--ink-faint); }

.cta-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.btn {
  position: relative; isolation: isolate; overflow: hidden;
  display: inline-flex; align-items: center; gap: .55rem;
  padding: .8rem 1.3rem; border-radius: var(--r-md);
  border: 1px solid var(--line-strong); color: var(--ink);
  font: 500 .9375rem/1 var(--font-sans);
  transition: color .25s var(--ease), border-color .25s var(--ease), transform .12s ease-out;
}
.btn:active { transform: scale(.975); }
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1; background: var(--seam);
  transform: scaleX(0); transform-origin: left; transition: transform .38s var(--ease);
}
.btn:hover::before, .btn:focus-visible::before { transform: scaleX(1); }
.btn:hover, .btn:focus-visible { color: var(--weld-ink); border-color: transparent; }
.btn-primary { border-color: var(--weld); color: var(--weld); }
.btn svg { width: 15px; height: 15px; }

/* --- Stats strip ---------------------------------------------------------- */
.stats {
  display: grid; grid-template-columns: repeat(2, minmax(0,1fr));
  border-top: 1px solid var(--line);
}
@media (width >= 560px) { .stats { grid-template-columns: repeat(3, minmax(0,1fr)); } }
@media (width >= 900px) { .stats { grid-template-columns: repeat(5, minmax(0,1fr)); } }
.stat { padding: 1.3rem 1rem 1.3rem 0; border-bottom: 1px solid var(--line); }
.stat:last-child { border-bottom: 0; }
@media (width >= 900px) { .stat { border-bottom: 0; } }
.stat b {
  display: block; font: 700 clamp(1.6rem, 3.6vw, 2.35rem)/1 var(--font-display);
  letter-spacing: -.04em; font-variant-numeric: tabular-nums; color: var(--ink);
}
.stat span { display: block; margin-top: .4rem; font: 400 .75rem/1.3 var(--font-mono); color: var(--ink-faint); }

/* --- Flagship cards ------------------------------------------------------- */
.flags { display: grid; gap: 1rem; }
.flag {
  position: relative; overflow: hidden;
  display: grid; gap: .35rem 1.5rem;
  grid-template-columns: auto 1fr; align-items: start;
  padding: clamp(1.25rem, 3vw, 1.9rem);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  transition: border-color .3s var(--ease), transform .3s var(--ease), background-color .3s var(--ease);
}
.flag::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: var(--hue, var(--weld)); transform: scaleY(0); transform-origin: top;
  transition: transform .42s var(--ease);
}
.flag:hover, .flag:focus-visible { border-color: var(--line-strong); background: var(--surface-2); }
.flag:hover::before, .flag:focus-visible::before { transform: scaleY(1); }
@media (hover: hover) and (pointer: fine) { .flag:hover { transform: translateY(-2px); } }

.flag-idx { grid-row: 1 / span 3; font: 500 .75rem/1.6 var(--font-mono); color: var(--ink-faint); padding-top: .3rem; }
.flag-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: .6rem; }
.flag-name { font: 700 clamp(1.5rem, 3.4vw, 2rem)/1.05 var(--font-display); letter-spacing: -.035em; }
.flag-toyou { font: 400 .75rem/1 var(--font-mono); color: var(--hue, var(--weld)); opacity: .9; }
.flag-dek { grid-column: 2; margin-top: .5rem; max-width: 56ch; color: var(--ink-muted); font-size: .9375rem; }
.flag-foot { grid-column: 2; display: flex; flex-wrap: wrap; align-items: center; gap: .5rem .9rem; margin-top: 1rem; }
.flag-dom { font: 400 .75rem/1 var(--font-mono); color: var(--ink-faint); }
.chip {
  padding: .25rem .5rem; border: 1px solid var(--line); border-radius: var(--r-sm);
  font: 400 .6875rem/1.3 var(--font-mono); color: var(--ink-faint);
}
.flag-metric {
  grid-column: 2; margin-top: .9rem;
  font: 700 1.5rem/1 var(--font-display); color: var(--hue, var(--weld)); letter-spacing: -.03em;
}
.flag-metric small { display: block; margin-top: .25rem; font: 400 .6875rem/1.3 var(--font-mono); color: var(--ink-faint); letter-spacing: .08em; text-transform: uppercase; }
@media (width >= 760px) {
  .flag { grid-template-columns: auto minmax(0,1fr) auto; }
  .flag-metric { grid-column: 3; grid-row: 1 / span 3; margin-top: .25rem; text-align: right; justify-self: end; }
}

/* --- Row list (selected work, writing, cv) -------------------------------- */
.rows { border-top: 1px solid var(--line); }
.row {
  position: relative; display: grid; gap: .2rem .5rem;
  grid-template-columns: minmax(0,1fr) auto; align-items: baseline;
  padding: 1.05rem .25rem; border-bottom: 1px solid var(--line);
  transition: background-color .25s var(--ease);
}
.row::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: var(--hue, var(--weld)); transform: scaleX(0); transform-origin: left;
  transition: transform .5s var(--ease);
}
.row:hover::after, .row:focus-visible::after { transform: scaleX(1); }
.row-name { display: flex; align-items: center; gap: .6rem; font: 500 1.0625rem/1.3 var(--font-display); letter-spacing: -.02em; transition: transform .3s var(--ease); }
.row:hover .row-name { transform: translateX(5px); }
.row-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--hue, var(--weld)); flex: none; }
.row-dek { grid-column: 1; color: var(--ink-muted); font-size: .875rem; max-width: 60ch; }
.row-meta { grid-column: 2; grid-row: 1; font: 400 .75rem/1 var(--font-mono); color: var(--ink-faint); white-space: nowrap; }
.row time { font: 400 .75rem/1 var(--font-mono); color: var(--ink-faint); }
@media (width >= 760px) {
  .row { grid-template-columns: 13rem minmax(0,1fr) auto; column-gap: 1.5rem; }
  .row-dek { grid-column: 2; grid-row: 1; }
  .row-meta { grid-column: 3; }
}

.more-link {
  display: inline-flex; align-items: center; gap: .45rem; margin-top: 1.4rem;
  font: 500 .875rem/1 var(--font-mono); color: var(--weld);
  transition: gap .25s var(--ease);
}
.more-link:hover { gap: .8rem; }

/* --- Method steps --------------------------------------------------------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; margin-top: 1.5rem; }
.step { background: var(--surface); padding: 1.1rem 1rem; }
.step span { display: block; font: 500 .6875rem/1 var(--font-mono); color: var(--weld); }
.step b { display: block; margin-top: .5rem; font: 500 .9375rem/1.3 var(--font-display); }

/* --- Languages ------------------------------------------------------------ */
.lang-row {
  display: grid; gap: .5rem 1.25rem; align-items: center;
  padding: 1.15rem .25rem; border-bottom: 1px solid var(--line);
}
.lang-id { display: flex; align-items: baseline; gap: .65rem; }
.lang-native { font: 500 1.125rem/1.2 var(--font-display); }
.lang-latin { font: 400 .6875rem/1 var(--font-mono); color: var(--ink-faint); letter-spacing: .1em; text-transform: uppercase; }
.lang-cefr { font: 500 .75rem/1 var(--font-mono); color: var(--hue); }
.track { display: block; position: relative; height: 2px; background: var(--line); border-radius: 2px; overflow: hidden; }
.track i { position: absolute; inset: 0 auto 0 0; background: var(--hue); border-radius: 2px; transform-origin: left; transform: scaleX(var(--fill, 0)); }
@media (prefers-reduced-motion: no-preference) {
  .reveal .track i { transform: scaleX(0); transition: transform 1s var(--ease-soft) .15s; }
  .reveal.is-in .track i { transform: scaleX(var(--fill, 0)); }
}
.lang-story { margin-top: .5rem; font: 400 .8125rem/1.4 var(--font-mono); color: var(--ink-muted); }
.lang-sample { margin-top: .3rem; font-size: .875rem; color: var(--ink-faint); }
.lang-sample span { display: inline-block; margin-right: .5rem; font: 400 .625rem/1 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--hue); }
.lang-badge { font: 400 .6875rem/1 var(--font-mono); color: var(--ink-faint); white-space: nowrap; }
.lang-badge.is-live { display: inline-flex; align-items: center; gap: .4rem; color: var(--hue); }
.lang-badge .pulse { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
@media (width >= 760px) {
  .lang-row { grid-template-columns: 13rem minmax(0,1fr) auto; }
  .lang-id { flex-direction: column; align-items: flex-start; gap: .25rem; }
}

/* --- Open source block ---------------------------------------------------- */
.os { display: grid; gap: 1rem; }
@media (width >= 760px) { .os { grid-template-columns: minmax(0,1.4fr) minmax(0,1fr); gap: 1.25rem; } }
.os-card { padding: 1.4rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); transition: border-color .3s var(--ease); }
.os-card:hover { border-color: var(--line-strong); }
.os-card h3 { font-size: 1.25rem; }
.os-card p { margin-top: .5rem; color: var(--ink-muted); font-size: .875rem; }
.os-links { display: flex; flex-direction: column; gap: .1rem; }
.os-links b { font: 400 .6875rem/1 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: .6rem; }
.os-links a { padding: .5rem 0; border-bottom: 1px solid var(--line); font: 400 .875rem/1.4 var(--font-mono); color: var(--ok); transition: padding-left .25s var(--ease); }
.os-links a:hover { padding-left: .4rem; }

/* --- Page headers (inner pages) ------------------------------------------- */
.page-head { padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 3vw, 2.5rem); }
.page-h1 { margin-top: .9rem; font-size: clamp(2.1rem, 6vw, 3.5rem); }
.page-dek { margin-top: 1rem; max-width: 56ch; color: var(--ink-muted); font-size: clamp(1rem, 2vw, 1.125rem); }

/* --- Case study ----------------------------------------------------------- */
.case-links { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.5rem; }
.case-grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
@media (width >= 760px) { .case-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
.case-cell { background: var(--surface); padding: clamp(1.2rem, 3vw, 1.8rem); }
.case-cell h2 { font: 500 .6875rem/1 var(--font-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--weld); }
.case-cell p { margin-top: .85rem; color: var(--ink-muted); font-size: .9375rem; }
.case-metric { display: flex; align-items: baseline; gap: .6rem; margin-top: 1.4rem; }
.case-metric b { font: 700 2.6rem/1 var(--font-display); letter-spacing: -.04em; color: var(--hue, var(--weld)); }
.case-metric span { font: 400 .75rem/1.3 var(--font-mono); color: var(--ink-faint); letter-spacing: .08em; text-transform: uppercase; }
.stack-chips { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1.25rem; }

/* --- Prose ---------------------------------------------------------------- */
.prose { max-width: 66ch; }
.prose p { margin-top: 1.15rem; color: var(--ink-muted); font-size: 1.0625rem; line-height: 1.72; }
.prose p:first-child { margin-top: 0; }
.prose p strong, .prose b { color: var(--ink); font-weight: 600; }
.prose a { color: var(--weld); border-bottom: 1px solid color-mix(in srgb, var(--weld) 40%, transparent); }
.prose a:hover { border-bottom-color: var(--weld); }
.prose code { font: 400 .875em/1 var(--font-mono); padding: .15em .35em; background: var(--surface-2); border-radius: var(--r-sm); color: var(--ink); }
.note {
  margin-top: 1.5rem; padding: .7rem .9rem; border-left: 2px solid var(--line-strong);
  font: 400 .8125rem/1.5 var(--font-mono); color: var(--ink-faint);
}

/* --- CV ------------------------------------------------------------------- */
.cv-top { display: flex; flex-wrap: wrap; gap: 1.25rem; align-items: flex-start; justify-content: space-between; }
.cv-name { font-size: clamp(2rem, 5.5vw, 3rem); }
.cv-meta { margin-top: .8rem; font: 400 .875rem/1.7 var(--font-mono); color: var(--ink-muted); }
.cv-avail { margin-top: .7rem; font: 400 .8125rem/1.5 var(--font-mono); color: var(--weld); }
.cv-sec { padding-top: 2.25rem; }
.cv-sec > h2 { font: 500 .6875rem/1 var(--font-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--weld); }
.cv-item { padding-top: 1.35rem; }
.cv-item-h { display: flex; flex-wrap: wrap; gap: .3rem 1rem; align-items: baseline; justify-content: space-between; }
.cv-item-h b { font: 600 1.0625rem/1.3 var(--font-display); }
.cv-item-h em { display: block; margin-top: .2rem; font: 400 .875rem/1.5 var(--font-sans); font-style: normal; color: var(--ink-faint); }
.cv-item-h time, .cv-item-h > a { font: 400 .75rem/1.4 var(--font-mono); color: var(--ink-faint); white-space: nowrap; }
.cv-item-h > a:hover { color: var(--weld); }
.cv-points { margin-top: .8rem; display: grid; gap: .45rem; }
.cv-points li { position: relative; padding-left: 1.1rem; color: var(--ink-muted); font-size: .9375rem; }
.cv-points li::before { content: ""; position: absolute; left: 0; top: .62em; width: 5px; height: 1px; background: var(--weld); }
.cv-langs { margin-top: 1rem; display: grid; gap: .55rem; }
.cv-langs p { display: flex; flex-wrap: wrap; gap: .25rem .8rem; font-size: .9375rem; }
.cv-langs b { font-weight: 600; }
.cv-langs span { color: var(--ink-faint); font: 400 .8125rem/1.5 var(--font-mono); }

/* --- Footer --------------------------------------------------------------- */
.foot { border-top: 1px solid var(--line); padding-block: clamp(3rem, 7vw, 5rem) 2.5rem; margin-top: 2rem; }
.foot-handle { font-size: clamp(2.4rem, 9vw, 5rem); letter-spacing: -.05em; }
.foot-body { margin-top: 1rem; color: var(--ink-muted); max-width: 46ch; }
.foot-links { display: flex; flex-wrap: wrap; gap: .5rem .5rem; margin-top: 1.75rem; }
.foot-links a {
  padding: .5rem .8rem; border: 1px solid var(--line); border-radius: var(--r-pill);
  font: 400 .8125rem/1 var(--font-mono); color: var(--ink-muted);
  transition: color .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease);
}
.foot-links a:hover { color: var(--weld); border-color: var(--weld); transform: translateY(-2px); }
.foot-chain { margin-top: 2rem; font: 400 .75rem/1.6 var(--font-mono); color: var(--ink-faint); letter-spacing: .04em; }
.foot-base {
  display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; justify-content: space-between;
  margin-top: 1.25rem; padding-top: 1.25rem; border-top: 1px solid var(--line);
  font: 400 .75rem/1.6 var(--font-mono); color: var(--ink-faint);
}
.foot-base a:hover { color: var(--weld); }

/* --- Scroll seam ---------------------------------------------------------- */
.seam-rail { position: fixed; left: 0; top: 0; z-index: 70; width: 100%; height: 2px; background: transparent; pointer-events: none; }
.seam-rail i { display: block; height: 100%; width: 100%; background: var(--seam); transform: scaleX(0); transform-origin: left; }

/* --- Motion --------------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(14px); }
  .reveal.is-in { opacity: 1; transform: none; transition: opacity .55s var(--ease-soft), transform .55s var(--ease-soft); }
  .reveal.is-in.d1 { transition-delay: .06s; }
  .reveal.is-in.d2 { transition-delay: .12s; }
  .reveal.is-in.d3 { transition-delay: .18s; }
  .reveal.is-in.d4 { transition-delay: .24s; }
  .reveal.is-in.d5 { transition-delay: .3s; }


  @view-transition { navigation: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
  .track i { transform: scaleX(var(--fill, 0)); }
}

/* --- Print (the CV is the point) ------------------------------------------ */
@media print {
  @page { margin: 14mm; }
  html, body { background: #fff !important; color: #111 !important; font-size: 10.5pt; }
  .hdr, .sheet, .foot, .skip, .seam-rail, .cv-print, .langs, .burger { display: none !important; }
  .shell { max-width: none; padding: 0; }
  a { color: #111 !important; }
  .kicker, .cv-sec > h2 { color: #666 !important; }
  .cv-avail { color: #111 !important; }
  .cv-points li::before { background: #999; }
  .cv-item, .cv-sec { break-inside: avoid; }
  .cv-meta, .cv-item-h em, .cv-item-h time, .cv-langs span { color: #444 !important; }
  .cv-points li { color: #222 !important; }
}