/* ==========================================================================
   Base: reset, layout and component structure.
   Colours, fonts and decoration come from the active theme in css/themes/.
   ========================================================================== */

/* Default type scale. :where() keeps specificity at zero so any theme's :root wins. */
:where(:root) {
  --step--1: 0.9rem;
  --step-0: 1.0625rem;
  --step-1: 1.3rem;
  --step-2: 1.6rem;
  --step-3: clamp(1.8rem, 1.4rem + 1.8vw, 2.5rem);
  --step-4: clamp(2.3rem, 1.6rem + 3.2vw, 3.8rem);
  --step-5: clamp(3rem, 1.8rem + 5.6vw, 6.4rem);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  font-size: var(--step-0);
  line-height: 1.6;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

img, svg, video, iframe { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3, p, ul, ol, dl, figure { margin: 0; }
ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }

a { color: var(--link); text-underline-offset: 3px; }
a:hover { color: var(--text); }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}
.skip-link:focus { top: 1rem; }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: 76rem;
  margin-inline: auto;
  padding-inline: 1rem;
}
@media (min-width: 768px) { .container { padding-inline: 2rem; } }

main { flex: 1; }

.section { padding-block: 4rem; }
@media (min-width: 1024px) { .section { padding-block: 6rem; } }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem 2rem;
  margin-bottom: 2.5rem;
}
.section__title { font-size: var(--step-4); }

.prose { max-width: 38rem; }
.prose p + p { margin-top: 1rem; }
.prose ul { padding-left: 1.25rem; }
.prose li + li { margin-top: 0.5rem; }
.lede { font-size: var(--step-1); line-height: 1.5; color: var(--text); }
.muted { color: var(--text-muted); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg);
  border-bottom: var(--border-width) solid var(--steel);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.5rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  text-transform: var(--display-case);
}
.brand img { width: 3rem; height: 3rem; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0 1rem;
  background: transparent;
  color: var(--text);
  border: var(--border-width) solid var(--border);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.site-nav { display: none; }
.site-nav.is-open {
  display: block;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: var(--border-width) solid var(--steel);
  padding: 0.5rem 1rem 1rem;
}
.site-nav ul { display: flex; flex-direction: column; gap: 0.25rem; }
.site-nav a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 2.75rem;
  padding-inline: 0.5rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  text-transform: var(--display-case);
}
.site-nav a:hover { color: var(--accent); }
.site-nav a[aria-current="page"] { text-decoration: underline; text-decoration-thickness: 3px; text-underline-offset: 8px; }

@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .site-nav, .site-nav.is-open {
    display: block;
    position: static;
    padding: 0;
    border: 0;
  }
  .site-nav ul { flex-direction: row; gap: 1.5rem; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 3rem;
  padding: 0.6rem 1.4rem;
  font: inherit;
  text-decoration: none;
  cursor: pointer;
}
.btn-row { display: flex; flex-wrap: wrap; gap: 1rem; }

/* ---------- Hero ---------- */
.hero { padding-block: 3rem 4rem; }
.hero__grid { display: grid; gap: 2.5rem; align-items: center; }
.hero__title { font-size: var(--step-5); }
.hero__title span { display: block; }
.hero__role {
  margin-top: 1.25rem;
  font-size: var(--step-2);
  font-weight: 500;
  line-height: 1.3;
  color: var(--text);
}
.hero__intro { margin-top: 1.5rem; max-width: 34rem; font-size: var(--step-1); line-height: 1.5; color: var(--text-muted); }
.hero .btn-row { margin-top: 2rem; }
.hero__poster { width: 100%; max-width: 30rem; justify-self: center; }
@media (min-width: 1024px) {
  .hero { padding-block: 5rem 6rem; }
  .hero__grid { grid-template-columns: 7fr 5fr; }
  .hero__poster { justify-self: end; }
}

/* ---------- Legend ---------- */
.legend { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; color: var(--text-muted); font-size: var(--step--1); }
.legend li { display: inline-flex; align-items: center; gap: 0.5rem; }

/* ---------- Work grid ---------- */
.work-grid { display: grid; gap: 2rem; }
@media (min-width: 768px) {
  .work-grid { grid-template-columns: repeat(2, 1fr); }
  .work-card--feature { grid-column: 1 / -1; }
}
.work-card { position: relative; }
.work-card__link {
  display: grid;
  height: 100%;
  color: inherit;
  text-decoration: none;
}
.work-card__thumb { aspect-ratio: 16 / 9; overflow: hidden; }
.work-card__thumb svg, .work-card__thumb img { width: 100%; height: 100%; object-fit: cover; }
.work-card__body { padding: 1.5rem; display: grid; gap: 0.75rem; align-content: start; }
.work-card__kind { display: inline-flex; align-items: center; gap: 0.5rem; font-size: var(--step--1); color: var(--text-muted); }
.work-card__title { font-size: var(--step-3); }
.work-card__meta { font-size: var(--step--1); color: var(--text-muted); }
.work-card__summary { max-width: 38rem; }
@media (min-width: 1024px) {
  .work-card--feature .work-card__link { grid-template-columns: 7fr 5fr; }
  .work-card--feature .work-card__thumb { aspect-ratio: auto; min-height: 22rem; }
  .work-card--feature .work-card__body { padding: 2rem; align-content: center; }
  .work-card--feature .work-card__title { font-size: var(--step-4); }
}

/* ---------- Split (about intro etc.) ---------- */
.split { display: grid; gap: 2.5rem; }
@media (min-width: 1024px) { .split { grid-template-columns: 5fr 7fr; gap: 4rem; } }

/* ---------- Timeline ---------- */
.timeline { display: grid; gap: 1.75rem; }
.timeline__item { display: grid; gap: 0.4rem; }
.timeline__head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.25rem 1rem; }
.timeline__role { font-size: var(--step-1); font-weight: 600; text-transform: none; letter-spacing: 0; line-height: 1.3; }
.timeline__when { color: var(--text-muted); font-size: var(--step--1); font-variant-numeric: tabular-nums; }
.timeline__track { position: relative; height: 0.75rem; background: var(--surface); }
.timeline__bar { position: absolute; top: 0; bottom: 0; left: var(--start); width: var(--span); }
.timeline__points { color: var(--text-muted); padding-left: 1.25rem; }
.timeline__points li + li { margin-top: 0.35rem; }
.timeline__scale { display: flex; justify-content: space-between; color: var(--text-muted); font-size: var(--step--1); font-variant-numeric: tabular-nums; }

/* ---------- Skill groups ---------- */
.skill-groups { display: grid; gap: 2rem; }
@media (min-width: 768px) { .skill-groups { grid-template-columns: repeat(3, 1fr); } }
.skill-group h3 { font-size: var(--step-2); margin-bottom: 0.75rem; display: flex; align-items: center; gap: 0.6rem; }
.skill-group ul { padding-left: 1.1rem; color: var(--text-muted); }
.skill-group li + li { margin-top: 0.3rem; }

/* ---------- Project detail ---------- */
.breadcrumb { font-size: var(--step--1); color: var(--text-muted); margin-bottom: 1.5rem; }
.breadcrumb a { color: var(--text-muted); }
.project-hero { padding-block: 3rem 2rem; }
.project-hero__title { font-size: var(--step-5); margin-top: 0.75rem; }
.project-hero .lede { margin-top: 1.5rem; max-width: 40rem; }

.facts {
  display: grid;
  gap: 1rem 2rem;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  padding-block: 1.5rem;
  border-block: var(--border-width) solid var(--steel);
}
.facts dt { font-size: var(--step--1); color: var(--text-muted); }
.facts dd { margin: 0; font-weight: 500; }

.media-slot {
  display: grid;
  place-items: end start;
  aspect-ratio: 16 / 9;
  padding: 1rem;
  font-size: var(--step--1);
}
.media-slot span { background: var(--bg); padding: 0.25rem 0.6rem; }
.video-embed { aspect-ratio: 16 / 9; width: 100%; border: 0; }
.media-grid { display: grid; gap: 1.5rem; }
@media (min-width: 768px) { .media-grid { grid-template-columns: repeat(2, 1fr); } .media-grid > :first-child { grid-column: 1 / -1; } }

.project-body { display: grid; gap: 3rem; }
@media (min-width: 1024px) { .project-body { grid-template-columns: 7fr 5fr; gap: 4rem; } }
.project-body h2 { font-size: var(--step-3); margin-bottom: 1rem; }
.project-body aside h2 { font-size: var(--step-2); }
.tag-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag-list li { border: var(--border-width) solid var(--border); padding: 0.2rem 0.7rem; font-size: var(--step--1); }

.pager { display: grid; gap: 1rem; padding-block: 2rem; border-top: var(--border-width) solid var(--steel); }
@media (min-width: 768px) { .pager { grid-template-columns: 1fr 1fr; } .pager a:last-child { text-align: right; } }
.pager a { display: grid; gap: 0.25rem; padding: 1rem 0; color: var(--text); text-decoration: none; }
.pager a span { color: var(--text-muted); font-size: var(--step--1); }
.pager a strong { font-size: var(--step-2); text-transform: var(--display-case); }
.pager a:hover strong { text-decoration: underline; }

/* ---------- Contact band ---------- */
.contact-band { position: relative; padding: 2.5rem 1.5rem; display: grid; gap: 1.5rem; }
@media (min-width: 768px) { .contact-band { padding: 3.5rem; } }
/* Buttons move beside the text only when there is room for the heading to stay large */
@media (min-width: 1100px) { .contact-band { grid-template-columns: 1fr auto; align-items: center; } }
.contact-band > div:first-child { container-type: inline-size; }
/* The heading stays on one line: it scales with its column (the text is about 15.7× its font size wide), capped at step-4 */
.contact-band h2 { font-size: min(var(--step-4), 6.1cqi); white-space: nowrap; }
.contact-band p { margin-top: 0.75rem; color: var(--text-muted); max-width: 32rem; }

/* ---------- Footer ---------- */
.site-footer {
  padding-block: 2rem;
  border-top: var(--border-width) solid var(--steel);
  color: var(--text-muted);
  font-size: var(--step--1);
}
.site-footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }
.site-footer a { color: var(--text-muted); }
.site-footer ul { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; }

/* ---------- Project group titles ---------- */
.group-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--step-3);
  margin-bottom: 1.5rem;
}

/* ---------- Timeline key swatches (styles set --track-* tokens) ---------- */
.swatch { display: inline-block; flex: none; width: 0.9em; height: 0.9em; background: var(--track-color, currentColor); }
.swatch[data-track="design"], .timeline__bar[data-track="design"] { --track-color: var(--track-design); }
.swatch[data-track="audio"],  .timeline__bar[data-track="audio"]  { --track-color: var(--track-audio); }
.swatch[data-track="qa"],     .timeline__bar[data-track="qa"]     { --track-color: var(--track-qa); }

/* ---------- Footer style switcher ---------- */
.style-switcher { flex-basis: 100%; display: grid; grid-template-columns: auto 1fr; align-items: baseline; gap: 0.5rem 1rem; }
.style-switcher > ul { grid-column: 2; }
.style-switcher ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; padding: 0; margin: 0; list-style: none; }
.style-switcher a[aria-current="page"] { color: var(--text); text-decoration: none; font-weight: 600; }

/* Long single words in display faces wrap rather than push the page sideways */
h1, h2, h3 { overflow-wrap: break-word; }

/* Grid and flex children may shrink below their longest word, so wide display faces wrap instead of overflowing */
.hero__grid > *, .split > *, .contact-band > *, .work-card__link > *, .skill-groups > *, .project-body > *, .timeline__head > * { min-width: 0; }

/* ---------- Work images ---------- */
.work-card__thumb img { width: 100%; height: 100%; object-fit: cover; }
.media-image { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }