/* STOCHOS team site
   All colours live in the token blocks below. To change the look, edit only those. */

@font-face {
  font-family: "Archivo";
  src: url("../fonts/archivo-latin-wdth-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
}
@font-face {
  font-family: "Public Sans";
  src: url("../fonts/public-sans-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  /* light: chart paper and oil-navy ink */
  --paper: #f1f4f3;
  --paper-2: #e6ebe9;
  --grid: #d6dfdc;
  --grid-major: #bcc8c4;
  --ink: #0c1b29;
  --ink-2: #364552;
  --ink-3: #566470;
  --line: #c6d1ce;
  --link: #1d46c8;
  --btn-bg: #0c1b29;
  --btn-fg: #f1f4f3;
  /* the four gas traces (used in the hero drawing) */
  --h2: #2547d0;
  --co: #c2410c;
  --c2h4: #0b7a5e;
  --c2h2: #7c3aed;
  --c5: #b4195a;
  --c6: #8a6200;

  --font-display: "Archivo", "Arial Narrow", Arial, sans-serif;
  --font-body: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0b1620;
    --paper-2: #101e2b;
    --grid: #172839;
    --grid-major: #243649;
    --ink: #e7eef3;
    --ink-2: #b3c0cb;
    --ink-3: #8998a5;
    --line: #223344;
    --link: #93b2ff;
    --btn-bg: #e7eef3;
    --btn-fg: #0b1620;
    --h2: #86a0ff;
    --co: #ff9a62;
    --c2h4: #4fd1a5;
    --c2h2: #b794f6;
    --c5: #ff8fb8;
    --c6: #e8c15a;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0b1620;
  --paper-2: #101e2b;
  --grid: #172839;
  --grid-major: #243649;
  --ink: #e7eef3;
  --ink-2: #b3c0cb;
  --ink-3: #8998a5;
  --line: #223344;
  --link: #93b2ff;
  --btn-bg: #e7eef3;
  --btn-fg: #0b1620;
  --h2: #86a0ff;
  --co: #ff9a62;
  --c2h4: #4fd1a5;
  --c2h2: #b794f6;
  --c5: #ff8fb8;
  --c6: #e8c15a;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: var(--link); text-underline-offset: 0.2em; }
:focus-visible { outline: 3px solid var(--link); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-stretch: 78%;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.04;
  margin: 0;
}
h1 { font-size: clamp(2.9rem, 7vw, 5.4rem); line-height: 0.98; letter-spacing: -0.015em; }
h2 { font-size: clamp(2.1rem, 4.4vw, 3.1rem); }
h3 { font-size: 1.5rem; }
p { margin: 0 0 1em; max-width: 62ch; }

.wrap { width: min(1180px, 100% - 2.5rem); margin-inline: auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip {
  position: absolute; left: 1rem; top: -4rem; z-index: 10;
  background: var(--btn-bg); color: var(--btn-fg); padding: 0.6rem 1rem; border-radius: 4px;
}
.skip:focus { top: 1rem; }

/* header */
.site-header { position: sticky; top: 0; z-index: 5; background: var(--paper); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; gap: 1.5rem; min-height: 4rem; }
.brand {
  display: inline-flex; align-items: center; gap: 0.6rem; color: var(--ink); text-decoration: none;
  font: 800 1.35rem/1 var(--font-display); font-stretch: 80%; letter-spacing: 0.04em;
}
.brand svg { width: 30px; height: 30px; }
.site-nav { margin-left: auto; display: flex; gap: 1.75rem; }
.site-nav a { color: var(--ink); text-decoration: none; font-weight: 500; padding: 0.4rem 0; border-bottom: 2px solid transparent; }
.site-nav a:hover { border-bottom-color: var(--ink); }
.site-nav a[aria-current="page"] { border-bottom-color: var(--ink); }
.theme {
  appearance: none; background: none; border: 1px solid var(--line); color: var(--ink);
  border-radius: 4px; width: 2.4rem; height: 2.4rem; display: grid; place-items: center; cursor: pointer;
}
.theme:hover { border-color: var(--ink); }
.theme svg { width: 18px; height: 18px; }

/* buttons */
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1.5rem; margin-top: 2rem; }
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.85rem 1.35rem;
  border-radius: 4px; font: 600 1rem/1.2 var(--font-body); text-decoration: none; border: 2px solid transparent;
}
.btn-primary { background: var(--btn-bg); color: var(--btn-fg); }
.btn-primary:hover { filter: brightness(1.15); }
.btn-quiet { color: var(--link); padding-inline: 0.25rem; text-decoration: underline; }

/* hero */
.hero { padding: 3.5rem 0 4.5rem; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 3.5rem; align-items: center; }
.hero .lead { font-size: 1.25rem; line-height: 1.55; color: var(--ink-2); margin-top: 1.75rem; }
.hero-figure { margin: 0; }
.hero-figure svg { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 4px; background: var(--paper-2); }
.project-figure { margin-bottom: 2rem; }
.hero-figure figcaption { margin-top: 0.75rem; font-size: 0.9rem; color: var(--ink-3); max-width: 60ch; }
.chart-label { font: 600 14px var(--font-body); }
.chart-note { font: 400 13px var(--font-body); fill: var(--ink-3); }
.trace { fill: none; stroke-width: 2.2; stroke-linejoin: round; stroke-linecap: round; }
.trace.draw { stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 2.4s cubic-bezier(0.3, 0.1, 0.2, 1) forwards; }
.chart-late { opacity: 0; animation: appear 0.9s ease-out 2.2s forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes appear { to { opacity: 1; } }

/* sections */
.section { padding: 4.75rem 0; border-top: 1px solid var(--line); }
.section-head { max-width: 46rem; margin-bottom: 2.5rem; }
.section-head p { margin-top: 1rem; color: var(--ink-2); font-size: 1.125rem; }

.feature { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 4.5rem; align-items: start; }
.feature h2 { margin-bottom: 1.25rem; }
.feature p { color: var(--ink-2); }

.record { width: 100%; border-collapse: collapse; }
.record caption { text-align: left; font-weight: 600; padding-bottom: 0.9rem; }
.record th { text-align: left; font-weight: 400; padding: 1rem 1rem 1rem 0; border-top: 1px solid var(--line); color: var(--ink-2); }
.record td {
  text-align: right; padding: 1rem 0; border-top: 1px solid var(--line); white-space: nowrap;
  font: 700 2rem/1 var(--font-display); font-stretch: 78%; font-variant-numeric: tabular-nums;
}
.record tr:last-child th, .record tr:last-child td { border-bottom: 1px solid var(--line); }
.record-note { margin-top: 0.9rem; font-size: 0.9rem; color: var(--ink-3); }

.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 3rem; }
.principle { border-top: 3px solid var(--ink); padding-top: 1.1rem; }
.principle h3 { margin-bottom: 0.7rem; }
.principle p { color: var(--ink-2); margin: 0; }

/* team: one card per person, equal weight, each with its own colour */
.team { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; }
.member {
  --who: var(--link);
  display: flex; flex-direction: column; gap: 0.75rem; min-width: 0;
  padding: 1.4rem 1.4rem 1.25rem; background: var(--paper-2);
  border: 1px solid var(--line); border-top: 4px solid var(--who); border-radius: 4px;
}
.member h3 { font-size: 1.85rem; }
.member .about-me { min-width: 0; }
.member .role { color: var(--ink-2); margin: 0; }
.member .bio { color: var(--ink); margin: 0.7rem 0 0; }
.member svg { width: 100%; max-width: 240px; height: auto; display: block; margin-top: auto; }
.member svg path { fill: none; stroke: var(--who); stroke-width: 1.9; stroke-linejoin: round; stroke-linecap: round; }
.member .links { display: flex; gap: 1rem; }
.member .links:empty { display: none; }
.team-note { margin: 1.75rem 0 0; color: var(--ink-3); font-size: 0.9375rem; }

.about p { color: var(--ink-2); font-size: 1.125rem; }

.site-footer { border-top: 1px solid var(--line); padding: 2.5rem 0 3rem; color: var(--ink-3); font-size: 0.9375rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem 2rem; }
.site-footer p { margin: 0; }

/* projects page */
.page-head { padding: 4rem 0 3rem; }
.page-head p { margin-top: 1.25rem; font-size: 1.25rem; color: var(--ink-2); }
.project { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: 3.5rem; padding: 3.25rem 0; border-top: 1px solid var(--line); }
.project h2 { font-size: clamp(2rem, 3.6vw, 2.7rem); }
.project .status { display: inline-block; margin: 0.9rem 0 0; font-weight: 600; color: var(--c2h4); }
.project .summary { margin-top: 1rem; color: var(--ink-2); }
.tags { list-style: none; padding: 0; margin: 1.25rem 0 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tags li { border: 1px solid var(--line); border-radius: 4px; padding: 0.2rem 0.6rem; font-size: 0.9rem; color: var(--ink-2); }
.project .detail { margin-bottom: 1.75rem; }
.project .detail h3 { font-size: 1.35rem; margin-bottom: 0.4rem; }
.project .detail p { color: var(--ink-2); margin: 0; }
.more { padding: 3rem 0 4rem; border-top: 1px solid var(--line); color: var(--ink-3); }

@media (max-width: 960px) {
  .hero .wrap, .feature, .project { grid-template-columns: minmax(0, 1fr); gap: 2.5rem; }
  .principles { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .team { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-nav { gap: 1.1rem; }
}
@media (max-width: 640px) {
  .team { grid-template-columns: minmax(0, 1fr); }
  /* the drawing shrinks on phones, so its text is set larger to stay readable */
  .chart-label { font-size: 22px; }
  .chart-note { font-size: 19px; }
}
@media (max-width: 520px) {
  .brand span { font-size: 1.15rem; }
  .site-nav { gap: 0.9rem; font-size: 0.95rem; }
  .bar { gap: 0.9rem; }
  .record td { font-size: 1.6rem; }
  .section { padding: 3.5rem 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .trace.draw { animation: none; stroke-dashoffset: 0; }
  .chart-late { animation: none; opacity: 1; }
}

/* team sign-in page */
.account { padding: 4rem 0 5rem; max-width: 46rem; }
.account .lead { margin-top: 1.25rem; font-size: 1.25rem; color: var(--ink-2); }
.panel { margin-top: 3rem; padding-top: 1.75rem; border-top: 1px solid var(--line); }
.panel h3 { margin: 2rem 0 0.5rem; font-size: 1.35rem; }
.panel .role { color: var(--ink-2); margin: 0.4rem 0 0.25rem; }
.hint { color: var(--ink-3); font-size: 0.9375rem; margin: 0.35rem 0 0; }
.form { margin-top: 1.25rem; }
.field { margin-bottom: 1.25rem; }
.field label { display: block; font-weight: 600; margin-bottom: 0.4rem; }
.field input, .field textarea {
  display: block; width: 100%; max-width: 40rem; padding: 0.7rem 0.8rem;
  font: 400 1rem/1.4 var(--font-body); color: var(--ink); background: var(--paper);
  border: 1.5px solid var(--ink-3); border-radius: 4px;
}
.field textarea { resize: vertical; }
.field input:hover, .field textarea:hover { border-color: var(--ink); }
.message { min-height: 1.5em; margin: 0.5rem 0 0; font-weight: 500; }
.message.ok { border-left: 4px solid var(--c2h4); padding-left: 0.75rem; }
.message.error { border-left: 4px solid var(--co); padding-left: 0.75rem; }
.account .actions { margin-top: 1rem; }
button.btn { appearance: none; cursor: pointer; }
button.btn:disabled { opacity: 0.55; cursor: default; }
.linkbtn {
  appearance: none; background: none; border: 0; padding: 0; cursor: pointer;
  color: var(--link); font: inherit; text-decoration: underline; text-underline-offset: 0.2em;
}
.role-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 0 1rem; align-items: end; margin-top: 0; }
.role-row .field { margin-bottom: 1rem; }
.role-row .btn { margin-bottom: 1rem; }
@media (max-width: 520px) {
  .role-row { grid-template-columns: minmax(0, 1fr); }
  .role-row .btn { justify-self: start; margin-top: -0.5rem; }
}
.site-footer p a + a { margin-left: 1.25rem; }
button.btn-quiet { background: none; }
.roles { margin-top: 1rem; }