/* zichuanxu.me — "Transfer" design system (2026-10).
   The career is drawn as a route map: five lines (S Security, R Research,
   F Full-stack, A Agents, Q Finance) colour bands, bullets and the map.
   Tokens are declared three times: light, explicit dark, and system dark.
   Motion is scoped to .has-js (set by theme-init.html) and only runs under
   prefers-reduced-motion: no-preference. */

/* =========================================================================
   Tokens — day map (light) and night map (dark)
   ========================================================================= */
:root {
  color-scheme: light;
  --paper: #F6F5F0;
  --paper-2: #EEECE5;
  --card: #FFFFFF;
  --ink: #15171C;
  --ink-2: #2B2F37;
  --mute: #5C626D;
  --rule: #DEDAD0;
  --rule-2: #CBC6BA;
  --plate: #FFFFFF;
  --sign: #15171C;
  --sign-ink: #F6F5F0;
  --sign-mute: #A9AEB7;
  --S: #D6336C;
  --R: #2F6BDB;
  --F: #0E9F6E;
  --A: #F08A24;
  --Q: #8B5CF6;
  --focus: #C2600E;
  --font: "Instrument Sans", "Helvetica Neue", Arial, system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --wrap: 1280px;
  --gutter: clamp(20px, 5vw, 56px);
  --bar-h: 64px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #0F1115;
  --paper-2: #13161C;
  --card: #181B22;
  --ink: #ECEDEF;
  --ink-2: #C7CBD2;
  --mute: #959BA6;
  --rule: #262A33;
  --rule-2: #343A46;
  --sign: #090B0E;
  --sign-ink: #ECEDEF;
  --sign-mute: #8D939E;
  --S: #F0628F;
  --R: #5E8EF0;
  --F: #27C08A;
  --A: #FF9F45;
  --Q: #A78BFA;
  --focus: #FF9F45;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #0F1115;
    --paper-2: #13161C;
    --card: #181B22;
    --ink: #ECEDEF;
    --ink-2: #C7CBD2;
    --mute: #959BA6;
    --rule: #262A33;
    --rule-2: #343A46;
    --sign: #090B0E;
    --sign-ink: #ECEDEF;
    --sign-mute: #8D939E;
    --S: #F0628F;
    --R: #5E8EF0;
    --F: #27C08A;
    --A: #FF9F45;
    --Q: #A78BFA;
    --focus: #FF9F45;
  }
}

/* =========================================================================
   Base
   ========================================================================= */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--bar-h) + 20px); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 16px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 6px; }
.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; padding: 10px 14px; border-radius: 8px; background: var(--ink); color: var(--paper); font-weight: 600; text-decoration: none; }
.skip:focus { top: 12px; }

/* =========================================================================
   Signage atoms: station codes, line chips, platform numbers
   ========================================================================= */
.now-dot { width: 12px; height: 12px; flex: none; margin-top: 4px; border-radius: 50%; background: var(--A); animation: ring 2.2s ease-out infinite; }
@keyframes ring { from { box-shadow: 0 0 0 0 color-mix(in oklab, var(--A) 55%, transparent); } to { box-shadow: 0 0 0 12px transparent; } }
.pips { display: flex; gap: 4px; justify-content: flex-end; }
.pips i { width: 10px; height: 10px; border-radius: 50%; background: var(--c); }
.plat { width: 22px; height: 22px; flex: none; border-radius: 6px; background: var(--ink); color: var(--paper); display: inline-grid; place-items: center; font: 700 12px/1 var(--font); }
.S { --c: var(--S); } .R { --c: var(--R); } .F { --c: var(--F); } .A { --c: var(--A); } .Q { --c: var(--Q); }

/* =========================================================================
   Top bar
   ========================================================================= */
.bar { position: sticky; top: 0; z-index: 40; height: var(--bar-h); background: color-mix(in oklab, var(--paper) 86%, transparent); -webkit-backdrop-filter: saturate(1.3) blur(12px); backdrop-filter: saturate(1.3) blur(12px); border-bottom: 1px solid var(--rule); }
.bar .wrap { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 600; font-size: 15.5px; letter-spacing: -.01em; }
/* the mark: an ink square and an orange circle overlapping (same drawing as favicon.svg) */
.mark { width: 34px; height: 34px; flex: none; display: block; }
.bar-right { display: flex; align-items: center; gap: 8px; }
.nav { display: flex; align-items: center; gap: 2px; }
.nav a { display: inline-flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 8px; font-size: 14.5px; font-weight: 500; color: var(--mute); text-decoration: none; transition: color .2s, background-color .2s; }
.nav a:hover { color: var(--ink); background: color-mix(in oklab, var(--ink) 6%, transparent); }
.nav a[aria-current="true"] { color: var(--ink); }
.nav a[aria-current="true"] .plat { background: var(--A); color: #15171C; }
.toggle { width: 38px; height: 38px; margin-left: 6px; border-radius: 50%; border: 1px solid var(--rule-2); background: var(--card); display: grid; place-items: center; cursor: pointer; transition: border-color .2s; }
.toggle:hover { border-color: var(--ink); }
.toggle svg { width: 18px; height: 18px; }
.toggle .sun { display: none; }
:root[data-theme="dark"] .toggle .sun { display: block; }
:root[data-theme="dark"] .toggle .moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .toggle .sun { display: block; }
  :root:not([data-theme="light"]) .toggle .moon { display: none; }
}
@media (max-width: 900px) { .nav { display: none; } }

/* =========================================================================
   Hero
   ========================================================================= */
.hero { padding-block: clamp(40px, 6vw, 80px) clamp(48px, 7vw, 96px); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 600px); gap: clamp(24px, 4vw, 56px); align-items: center; }
.status { display: flex; align-items: flex-start; gap: 12px; }
.status p { font-size: 14px; line-height: 1.45; color: var(--mute); }
.status b { color: var(--ink); font-weight: 600; }
.hero h1 { font-size: clamp(56px, 8.4vw, 116px); font-weight: 700; font-stretch: 90%; letter-spacing: -.05em; line-height: .92; margin: 30px 0 20px; }
.lede { font-size: clamp(20px, 2.1vw, 27px); font-weight: 500; line-height: 1.3; letter-spacing: -.012em; color: var(--ink-2); max-width: 32ch; }
.lines { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.line-chip { appearance: none; display: inline-flex; align-items: center; gap: 8px; padding: 5px 13px 5px 5px; border-radius: 999px; background: var(--card); border: 1px solid var(--rule-2); font-size: 13.5px; font-weight: 600; line-height: 1; cursor: pointer; transition: border-color .2s, box-shadow .2s; }
.line-chip b { width: 24px; height: 24px; border-radius: 50%; border: 4px solid var(--c); display: grid; place-items: center; font-size: 10px; font-weight: 800; }
.line-chip:hover, .line-chip[aria-pressed="true"] { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 18px; border-radius: 10px; border: 1.5px solid var(--ink); font-size: 15px; font-weight: 600; line-height: 1; text-decoration: none; transition: background-color .2s, color .2s, border-color .2s; }
.btn svg { width: 16px; height: 16px; flex: none; }
.btn:hover { background: var(--ink); color: var(--paper); }
.btn.primary { background: var(--ink); color: var(--paper); }
.btn.primary:hover { background: var(--A); border-color: var(--A); color: #15171C; }
@media (max-width: 480px) {
  .cta .btn { flex: 1 1 calc(50% - 5px); justify-content: center; }
  .cta .btn.primary { flex-basis: 100%; }
}

.map { position: relative; }
.map-svg { width: 100%; height: auto; display: block; overflow: visible; }
.map-svg .ln { fill: none; stroke: var(--c); stroke-width: 11; stroke-linecap: round; stroke-linejoin: round; transition: opacity .25s; }
.map-svg .st { fill: var(--card); stroke: var(--ink); stroke-width: 3.5; transition: stroke-width .2s; }
.map-svg .x .st { stroke-width: 4.5; }
.map-svg .lbl { font: 600 15px var(--font); fill: var(--ink); }
.map-svg .lbl.big { font-size: 20px; font-weight: 700; }
.map-svg .yr { font: 500 11px var(--mono); fill: var(--mute); }
.map-svg .flag rect { fill: var(--ink); }
.map-svg .flag text { font: 700 10.5px var(--font); letter-spacing: .08em; fill: var(--paper); }
.map-svg .pulse { fill: var(--A); transform-box: fill-box; transform-origin: center; animation: pulse 1.8s ease-out infinite; }
.map-svg .next path { fill: none; stroke: var(--A); stroke-width: 5; stroke-linecap: round; stroke-dasharray: 2 12; }
.map-svg a { cursor: pointer; transition: opacity .25s; }
.map-svg a:hover .st { stroke-width: 6; }
.map-svg a:hover .lbl { text-decoration: underline; }
.map[data-focus] .ln, .map[data-focus] .stn, .map[data-focus] .next { opacity: .16; }
.map[data-focus="S"] .S, .map[data-focus="R"] .R, .map[data-focus="F"] .F, .map[data-focus="A"] .A, .map[data-focus="Q"] .Q { opacity: 1; }
@keyframes pulse { from { opacity: .5; transform: scale(1); } to { opacity: 0; transform: scale(2.8); } }

/* phone: the map becomes a vertical route list (also the accessible version on desktop) */
.route { list-style: none; position: relative; }
.route::before { content: ""; position: absolute; left: 11px; top: 18px; bottom: 18px; width: 4px; border-radius: 2px; background: var(--rule-2); }
.route li { position: relative; display: grid; grid-template-columns: 26px minmax(0, 1fr) auto; align-items: center; gap: 12px; padding: 8px 0; transition: opacity .25s; }
.route .dot { width: 18px; height: 18px; margin-left: 4px; border-radius: 50%; background: var(--card); border: 3.5px solid var(--ink); position: relative; z-index: 1; }
.route .x .dot { width: 22px; height: 22px; margin-left: 2px; border-width: 4.5px; }
.route .now .dot { box-shadow: 0 0 0 5px color-mix(in oklab, var(--A) 35%, transparent); }
.route a { text-decoration: none; min-width: 0; }
.route b { display: block; font-size: 16px; font-weight: 600; line-height: 1.25; }
.route small { font: 500 11.5px/1.3 var(--mono); color: var(--mute); }
.map[data-focus] .route li { opacity: .3; }
.map[data-focus="S"] .route li.S, .map[data-focus="R"] .route li.R, .map[data-focus="F"] .route li.F, .map[data-focus="A"] .route li.A, .map[data-focus="Q"] .route li.Q { opacity: 1; }
@media (min-width: 640px) { .route { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; } }
/* Keyboard users tab through the route list's links; while it holds focus it
   overlays the map instead of staying a 1px clipped box. */
@media (min-width: 640px) {
  .route:focus-within { inset: 0; z-index: 2; width: auto; height: auto; margin: 0; padding: 12px 16px; overflow: auto; clip: auto; white-space: normal; border-radius: 12px; background: var(--paper); box-shadow: 0 0 0 1px var(--rule); }
  .route:focus-within::before { left: 27px; top: 30px; bottom: 30px; }
}
@media (max-width: 639px) { .map-svg { display: none; } .route { margin-top: 30px; } }
@media (max-width: 1023px) { .hero .wrap { grid-template-columns: minmax(0, 1fr); } .map { max-width: 640px; } }

/* =========================================================================
   About
   ========================================================================= */
.about { background: var(--paper-2); border-block: 1px solid var(--rule); padding-block: clamp(56px, 8vw, 104px); }
.about .wrap { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 80px); align-items: start; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; font: 500 12.5px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--mute); }
.about-lead { font-size: clamp(28px, 3.5vw, 44px); font-weight: 600; line-height: 1.14; letter-spacing: -.025em; }
.about-lead u { text-decoration: none; background: linear-gradient(var(--c), var(--c)) 0 94% / 100% .13em no-repeat; padding-bottom: .02em; }
.about-mid { font-size: clamp(20px, 2vw, 24px); font-weight: 500; line-height: 1.38; letter-spacing: -.01em; color: var(--ink-2); }
.about-body { margin-top: 20px; font-size: 17px; line-height: 1.65; color: var(--mute); max-width: 62ch; }
.about-close { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--rule-2); font-size: 18px; line-height: 1.55; color: var(--ink-2); }
.about-close strong { color: var(--ink); font-weight: 700; }
@media (max-width: 900px) { .about .wrap { grid-template-columns: minmax(0, 1fr); } }

/* =========================================================================
   Sections + platform signs
   ========================================================================= */
.sec { padding-block: clamp(64px, 9vw, 112px); }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px 20px; flex-wrap: wrap; margin-bottom: clamp(24px, 3vw, 36px); padding-bottom: 16px; border-bottom: 2px solid var(--ink); }
.sec-title { display: flex; align-items: center; gap: 14px; font-size: clamp(30px, 3.4vw, 42px); font-weight: 700; line-height: 1; letter-spacing: -.03em; }
.sec-title .plat { width: 42px; height: 42px; border-radius: 10px; font-size: 23px; }
.sec-meta { font: 500 12.5px/1.3 var(--mono); color: var(--mute); }
.sec-meta a { text-decoration: none; border-bottom: 1.5px solid var(--rule-2); }
.sec-meta a:hover { color: var(--ink); border-color: var(--ink); }
.sec.alt { background: var(--paper-2); border-block: 1px solid var(--rule); }

/* =========================================================================
   Station cards (experience + education)
   ========================================================================= */
.stops { display: grid; gap: 22px; }
.stop { position: relative; background: var(--card); border: 1px solid var(--rule); border-radius: 16px; overflow: hidden; }
.band { display: flex; height: 8px; }
.band i { flex: 1; background: var(--c); }
.stop-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 14px 20px; align-items: center; padding: 22px 26px 14px; }
.stop-title { font-size: clamp(24px, 2.4vw, 32px); font-weight: 700; line-height: 1.05; letter-spacing: -.025em; }
.stop-title a { text-decoration: none; }
.stop-title a:hover { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 4px; }
.stop-role { margin-top: 7px; font-size: 16px; font-weight: 500; color: var(--mute); }
.stop-role b { color: var(--ink-2); font-weight: 600; }
.stop-side { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
.plate { height: 44px; min-width: 60px; max-width: 200px; padding: 9px 12px; border-radius: 10px; background: var(--plate); border: 1px solid var(--rule); display: grid; place-items: center; }
.plate img { max-height: 26px; width: auto; max-width: 100%; object-fit: contain; }
.when { display: inline-flex; align-items: center; gap: 8px; font: 500 12.5px/1 var(--mono); color: var(--mute); white-space: nowrap; }
.now-flag { display: inline-flex; align-items: center; gap: 6px; padding: 5px 9px 5px 7px; border-radius: 999px; background: var(--ink); color: var(--paper); font: 700 10px/1 var(--font); letter-spacing: .08em; text-transform: uppercase; }
.now-flag i { width: 7px; height: 7px; border-radius: 50%; background: var(--A); animation: blink 1.8s ease-in-out infinite; }
@keyframes blink { 50% { opacity: .35; } }
.stop-body { padding: 0 26px 22px; }
.stop-desc { font-size: 16.5px; line-height: 1.6; color: var(--ink-2); max-width: 78ch; }
.stop-desc a { text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
.stop-list { margin-top: 14px; list-style: none; display: grid; gap: 9px; max-width: 82ch; }
.stop-list li { position: relative; padding-left: 24px; line-height: 1.6; color: var(--ink-2); }
.stop-list li::before { content: ""; position: absolute; left: 1px; top: .5em; width: 10px; height: 10px; border-radius: 50%; background: var(--card); border: 2.5px solid var(--c, var(--ink)); }
.groups { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px 26px; margin-top: 20px; }
.group h4 { display: flex; align-items: center; gap: 8px; margin: 0 0 10px; font: 700 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--mute); }
.group h4::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--c); }
.group article + article { margin-top: 16px; padding-top: 16px; border-top: 1px dashed var(--rule-2); }
.group h5 { margin: 0 0 6px; font-size: 16px; font-weight: 700; line-height: 1.3; letter-spacing: -.01em; }
.group p { font-size: 15px; line-height: 1.6; color: var(--ink-2); }
.stop-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px 20px; flex-wrap: wrap; padding: 12px 26px; background: var(--sign); color: var(--sign-ink); font-size: 13.5px; font-weight: 600; }
.stop-foot a { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; }
.stop-foot a:hover { text-decoration: underline; text-underline-offset: 3px; }
.stop-foot a small { font: 500 11.5px var(--mono); color: var(--sign-mute); }
.stop-foot .tech { font: 400 12px/1.5 var(--mono); color: var(--sign-mute); }
@media (max-width: 1000px) { .groups { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 720px) {
  .stop-head { grid-template-columns: minmax(0, 1fr) auto; padding: 18px 18px 12px; }
  .stop-side { align-items: flex-end; }
  .stop-body { padding: 0 18px 18px; }
  .stop-foot { padding: 12px 18px; }
}
@media (max-width: 480px) {
  .stop-head { grid-template-columns: minmax(0, 1fr); }
  .stop-side { flex-direction: row-reverse; justify-content: space-between; align-items: center; }
}

/* education: one station per row, the same card as experience. University
   lockups carry two lines of type (native and English name), so their plates
   run taller than the work logos. */
.edu .plate { height: 60px; max-width: 240px; padding: 10px 14px; }
.edu .plate img { max-height: 38px; }
/* WQU's certificate is the card's dark footer, like "Previous stop" on the work cards */
.cert { display: flex; align-items: center; gap: 12px; padding: 13px 26px; background: var(--sign); color: var(--sign-ink); font-size: 14px; font-weight: 600; line-height: 1.35; text-decoration: none; transition: background-color .2s; }
.cert:hover { background: color-mix(in oklab, var(--sign) 88%, var(--sign-ink)); }
.cert .seal { width: 26px; height: 26px; flex: none; display: grid; place-items: center; border-radius: 50%; background: var(--Q); color: #fff; }
.cert .seal svg { width: 15px; height: 15px; }
.cert small { display: inline-block; margin-left: 8px; font: 500 12px var(--mono); color: var(--sign-mute); }
.cert .go { width: 16px; height: 16px; flex: none; margin-left: auto; color: var(--sign-mute); }
@media (max-width: 720px) { .cert { padding: 12px 18px; } }
@media (max-width: 480px) { .edu .plate { height: 52px; } .edu .plate img { max-height: 32px; } }

/* =========================================================================
   Projects
   ========================================================================= */
.projects { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.proj { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--rule); border-radius: 16px; overflow: hidden; }
.proj-body { display: flex; flex-direction: column; gap: 14px; flex: 1; padding: 22px 24px 24px; }
.proj-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.proj h3 { font-size: clamp(22px, 2.2vw, 26px); font-weight: 700; line-height: 1.1; letter-spacing: -.02em; }
.badge { padding: 5px 8px; border-radius: 999px; border: 1px solid var(--rule-2); font: 600 10.5px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--mute); white-space: nowrap; }
.proj p { line-height: 1.6; color: var(--ink-2); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips span { padding: 6px 8px; border-radius: 6px; border: 1px solid var(--rule); background: var(--paper); font: 500 12px/1 var(--mono); color: var(--ink-2); }
.proj-foot { margin-top: auto; display: flex; align-items: center; gap: 18px; padding-top: 4px; }
.link { display: inline-flex; align-items: center; gap: 6px; padding-bottom: 2px; border-bottom: 2px solid var(--c, var(--ink)); font-size: 14.5px; font-weight: 600; text-decoration: none; }
.link svg { width: 15px; height: 15px; }
.stars { display: inline-flex; align-items: center; gap: 5px; font: 500 13px/1 var(--mono); color: var(--mute); }
.stars svg { width: 14px; height: 14px; color: #D29B12; }
.stars[hidden] { display: none; }
@media (max-width: 860px) { .projects { grid-template-columns: minmax(0, 1fr); } }

/* =========================================================================
   Skills & stack: one row per group, each tool a logo tile. Tiles share a
   9-column grid so the rows line up; languages span three columns each.
   ========================================================================= */
.sheet-row { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 14px 28px; padding: 22px 0; border-bottom: 1px solid var(--rule-2); }
.sheet-row:first-child { padding-top: 4px; }
.sheet-row h3 { display: flex; align-items: center; gap: 10px; padding-top: 6px; font-size: 17px; font-weight: 700; line-height: 1.25; letter-spacing: -.01em; }
.sheet-row .pips { flex: none; justify-content: flex-start; }
.sheet-row .pips i { background: var(--c, var(--ink)); }
.tiles { list-style: none; display: grid; grid-template-columns: repeat(9, minmax(0, 1fr)); gap: 10px; }
.tile { display: flex; flex-direction: column; align-items: center; gap: 10px; min-width: 0; padding: 14px 6px 12px; border-radius: 12px; background: var(--card); box-shadow: inset 0 0 0 1px var(--rule); text-align: center; font-size: 13px; font-weight: 600; line-height: 1.2; }
.ico { width: 44px; height: 44px; flex: none; display: grid; place-items: center; border-radius: 11px; background: var(--plate); box-shadow: inset 0 0 0 1px var(--rule); }
.ico img { width: 26px; height: 26px; object-fit: contain; }
.tiles.langs .tile { grid-column: span 3; flex-direction: row; justify-content: space-between; gap: 12px; padding: 16px 18px; text-align: left; font-size: 17px; font-weight: 700; }
.tiles.langs small { font: 500 12px/1.3 var(--mono); color: var(--mute); text-align: right; }
@media (max-width: 1100px) {
  .sheet-row { grid-template-columns: minmax(0, 1fr); }
  .tiles { grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); }
  .tiles.langs { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
  .tiles.langs .tile { grid-column: auto; }
}
@media (max-width: 560px) { .tiles { grid-template-columns: repeat(3, minmax(0, 1fr)); } .tiles.langs { grid-template-columns: minmax(0, 1fr); } }

/* =========================================================================
   Contact
   ========================================================================= */
.contact { background: var(--sign); color: var(--sign-ink); padding-block: clamp(64px, 9vw, 112px) 36px; overflow: hidden; }
.next-line { display: block; width: 100%; height: 40px; margin-bottom: clamp(28px, 4vw, 44px); overflow: visible; }
.next-line path { fill: none; stroke: var(--A); stroke-width: 6; stroke-linecap: round; stroke-dasharray: 2 14; vector-effect: non-scaling-stroke; }
.next-line circle { fill: var(--sign); stroke: var(--sign-ink); stroke-width: 4.5; }
.contact .eyebrow { color: var(--sign-mute); }
.contact .eyebrow .plat { background: var(--A); color: #15171C; }
.contact h2 { font-size: clamp(52px, 8vw, 108px); font-weight: 700; font-stretch: 90%; line-height: .94; letter-spacing: -.05em; }
.mail { display: inline-block; margin-top: 18px; font: 500 clamp(14px, 1.6vw, 19px)/1.4 var(--mono); color: var(--sign-ink); text-decoration: none; border-bottom: 1.5px solid color-mix(in oklab, var(--sign-ink) 35%, transparent); word-break: break-all; }
.mail:hover { border-color: var(--A); }
.contact .cta { margin-top: 30px; }
.contact .btn { border-color: color-mix(in oklab, var(--sign-ink) 55%, transparent); color: var(--sign-ink); }
.contact .btn:hover { background: var(--sign-ink); color: var(--sign); border-color: var(--sign-ink); }
.contact .btn.primary { background: var(--A); border-color: var(--A); color: #15171C; }
.contact .btn.primary:hover { background: var(--sign-ink); border-color: var(--sign-ink); color: var(--sign); }
.colophon { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: clamp(56px, 8vw, 96px); padding-top: 18px; border-top: 1px solid color-mix(in oklab, var(--sign-ink) 16%, transparent); font: 500 12.5px var(--mono); color: var(--sign-mute); }

/* =========================================================================
   Motion
   ========================================================================= */
@media (prefers-reduced-motion: no-preference) {
  .has-js .map-svg .ln { stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw .9s cubic-bezier(.65, 0, .25, 1) forwards; animation-delay: var(--d); }
  /* backwards, not forwards: a forwards fill would pin opacity: 1 after the pop and
     outrank the .map[data-focus] dim rule; backwards keeps each stop hidden only
     until its own delay ends. */
  .has-js .map-svg .pop { animation: pop .45s cubic-bezier(.2, 1.3, .4, 1) backwards; animation-delay: var(--d); transform-box: fill-box; transform-origin: center; }
  .has-js .hero-copy > * { opacity: 0; animation: rise .7s var(--ease) forwards; animation-delay: var(--d, 0s); }
  .has-js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
  .has-js .reveal.in { opacity: 1; transform: none; }
  /* skills: tiles settle in turn once their row is revealed */
  .has-js .reveal .tile { opacity: 0; transform: translateY(8px); transition: opacity .45s var(--ease), transform .45s var(--ease); transition-delay: calc(.12s + var(--i, 0) * 45ms); }
  .has-js .reveal.in .tile { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .map-svg .pulse, .now-flag i, .now-dot { animation: none; }
}
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes pop { from { opacity: 0; transform: scale(.3); } to { opacity: 1; transform: none; } }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

/* =========================================================================
   Print
   ========================================================================= */
@media print {
  .bar, .skip, .lines, .cta, .map-svg, .next-line { display: none !important; }
  .route { position: static; width: auto; height: auto; margin: 16px 0 0; overflow: visible; clip: auto; white-space: normal; }
  html, body, .about, .sec.alt, .contact, .stop, .proj, .tile, .stop-foot { background: #fff !important; }
  body, body * { color: #000 !important; }
  .stop, .proj, .sheet-row { break-inside: avoid; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .has-js .reveal, .has-js .hero-copy > *, .has-js .map-svg .pop, .has-js .reveal .tile { opacity: 1 !important; transform: none !important; }
}

/* =========================================================================
   404 — "Not in service"
   ========================================================================= */
.lost { display: flex; align-items: center; min-height: calc(100vh - var(--bar-h) - 56px); padding-block: clamp(48px, 8vw, 96px); }
.lost .wrap { width: 100%; }
.lost h1 { font-size: clamp(52px, 8vw, 108px); font-weight: 700; font-stretch: 90%; line-height: .94; letter-spacing: -.05em; }
.lost-text { margin-top: 18px; max-width: 36ch; font-size: clamp(17px, 1.8vw, 21px); line-height: 1.5; color: var(--ink-2); }
.lost-line { display: block; width: min(320px, 100%); height: 40px; margin-top: 28px; overflow: visible; }
.lost-line path { fill: none; stroke: var(--A); stroke-width: 6; stroke-linecap: round; stroke-dasharray: 2 14; }
.lost-line circle { fill: var(--card); stroke: var(--ink); stroke-width: 4.5; }
.lost .cta { margin-top: 24px; }
.lost-foot { border-top: 1px solid var(--rule); }
.lost-foot .colophon { margin-top: 0; padding-block: 18px; border-top: 0; color: var(--mute); }