style.css

/* ==========================================================================
   JOBS Workshop — site styles
   Plain CSS on purpose: no build step, no preprocessor, no CDN.
   Change the colours in :root below and the whole site follows.

   Accessibility notes are inline where a rule exists for that reason.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Palette: Tokyo Night Light (enkia's VS Code theme).
   Light background, dark text — always.

   There is deliberately NO `prefers-color-scheme: dark` block. The site is a
   light theme for every visitor regardless of their OS setting. Adding one
   back would mean readers on dark-mode machines never see these colours.

   Surfaces and text are lifted straight from the theme's JSON; accents are
   its syntax-token colours.

   Four surface levels, lightest to darkest:
     --surface    cards, tables, schedule slots, the sticky header
     --bg         the page canvas          (theme's editor.background)
     --bg-soft    alternating bands and page headers
     --bg-sunken  the footer               (theme's sideBar.background)

   Every pair below is measured, not eyeballed; the ratios are WCAG 2.1
   contrast against the stated background. Re-measure if you change one.
   -------------------------------------------------------------------------- */

:root {
  /* --- Surfaces (Premium Soft Light) ------------------------------------- */
  --surface:      #ffffff;
  --bg:           #f8fafc;   
  --bg-soft:      #f1f5f9;
  --bg-sunken:    #e2e8f0;   

  /* --- Text ------------------------------------------------------------- */
  --text:         #0f172a;   
  --text-muted:   #475569;   

  /* --- Lines ------------------------------------------------------------ */
  --border:       #cbd5e1;   
  --border-strong:#94a3b8;   

  /* --- Interactive ------------------------------------------------------ */
  --brand:        #1e3a8a;   
  --brand-deep:   #1e40af;   
  --brand-tint:   #dbeafe;
  --accent:       #0d9488;   
  --accent-tint:  #ccfbf1;
  --on-brand:     #ffffff;   

  /* hero gradient stops */
  --hero-a:       #dbeafe;
  --hero-b:       #ccfbf1;
  --hero-c:       #e0e7ff;

  /* --- Session-kind chips ------------------------- */
  --chip-panel-bg:   #dbeafe;  --chip-panel-fg:   #1e40af;  /* blue   */
  --chip-talk-bg:    #ccfbf1;  --chip-talk-fg:    #0f766e;  /* teal */
  --chip-break-bg:   #fce7f3;  --chip-break-fg:   #9d174d;  /* pink   */
  --chip-session-bg: #ffedd5;  --chip-session-fg: #9a3412;  /* orange */

  /* --- Shape ------------------------------------------------------------ */
  --radius:    16px;
  --radius-sm: 10px;
  --shadow:    0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --wrap:      1120px;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

/* --------------------------------------------------------------- base ---- */

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

html {
  color-scheme: light;             /* stops dark-mode browsers auto-darkening
                                      scrollbars and form controls */
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;      /* sticky header must not cover anchors */
  -webkit-text-size-adjust: 100%;  /* respect the reader's font-size choice */
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;            /* rem, so browser zoom + font settings work */
  line-height: 1.65;
  overflow-wrap: break-word;       /* long URLs/names never force sideways scroll */
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  line-height: 1.25;
  margin: 0 0 .5em;
  font-weight: 700;
  letter-spacing: -.012em;
  text-wrap: balance;
}

h1 { font-size: clamp(1.9rem, 1.35rem + 2.2vw, 2.8rem); }
h2 { font-size: clamp(1.45rem, 1.2rem + 1.1vw, 1.9rem); }
h3 { font-size: 1.18rem; }

p { margin: 0 0 1.1em; }

a { color: var(--brand); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

img { max-width: 100%; height: auto; }

hr { border: 0; border-top: 1px solid var(--border); margin: 2.5rem 0; }

code {
  font-family: var(--font-mono);
  font-size: .875em;
  background: var(--bg-sunken);
  padding: .15em .4em;
  border-radius: 5px;
}

.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.visually-hidden {
  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 land here first. */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--brand); color: var(--on-brand); padding: .75rem 1.25rem;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

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

/* ------------------------------------------------------------- header ---- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}

.nav-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 4.25rem;
}

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: inherit;
  margin-right: auto;
  padding: .25rem 0;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-weight: 800; letter-spacing: -.02em; font-size: 1.05rem; }
.brand-sub  { font-size: .78rem; color: var(--text-muted); }

.site-nav ul {
  display: flex;
  gap: .15rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.site-nav a {
  display: block;
  padding: .5rem .7rem;
  border-radius: var(--radius-sm);
  font-size: .94rem;
  color: var(--text-muted);
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover { background: var(--bg-soft); color: var(--text); }

.site-nav a.is-active {
  color: var(--text);
  background: var(--brand-tint);
  font-weight: 650;
}

.nav-toggle {
  display: none;
  position: relative;
  width: 44px; height: 44px;          /* 44px = comfortable touch target */
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav-toggle-bars,
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  display: block;
  width: 18px; height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform .18s ease, opacity .18s ease;
}
.nav-toggle-bars::before, .nav-toggle-bars::after { content: ""; position: absolute; }
.nav-toggle-bars::before { transform: translateY(-6px); }
.nav-toggle-bars::after  { transform: translateY(6px); }

.nav-toggle[aria-expanded="true"] .nav-toggle-bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after  { transform: rotate(-45deg); }

@media (max-width: 940px) {
  .nav-toggle { display: flex; }

  .site-nav {
    display: none;
    position: absolute;
    left: 0; right: 0; top: 100%;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: .5rem clamp(1rem, 4vw, 2rem) 1rem;
    max-height: calc(100vh - 4.25rem);
    overflow-y: auto;
  }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav a { padding: .8rem .6rem; font-size: 1rem; }
}

/* --------------------------------------------------------------- hero ---- */

.hero {
  position: relative;
  background: linear-gradient(135deg, var(--hero-a), var(--hero-b), var(--hero-c), var(--hero-a));
  background-size: 400% 400%;
  animation: gradient-shift 15s ease infinite;
  border-bottom: 1px solid var(--border);
  padding: clamp(1.5rem, 3vw, 2.25rem) 0 clamp(1.25rem, 2.5vw, 1.75rem);
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero-badge {
  display: inline-block;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: .35rem .9rem;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 1.1rem;
}

.hero h1 {
  font-size: clamp(2rem, 1.35rem + 3vw, 3.2rem);
  margin-bottom: .3em;
  max-width: 20ch;
}

.hero h1 .hero-acronym {
  display: block;
  color: var(--brand);
  font-size: .55em;
  letter-spacing: .04em;
  margin-bottom: .15em;
}

.hero-lede {
  font-size: clamp(1.02rem, .98rem + .35vw, 1.2rem);
  color: var(--text-muted);
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1.75rem;
  margin: 1.75rem 0 1.5rem;
  padding: 0;
  list-style: none;
}

.hero-facts li {
  display: flex;
  flex-direction: column;
  border-left: 3px solid var(--brand);
  padding-left: .8rem;
}

.fact-label {
  font-size: .74rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.fact-value { font-weight: 650; }

.hero-aside { font-size: .93rem; color: var(--text-muted); margin: .25rem 0 0; }
.hero-aside a { color: var(--brand); }

/* ------------------------------------------------------------ buttons ---- */

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin: 1.5rem 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 44px;                 /* touch target */
  padding: .7rem 1.4rem;
  border-radius: 999px;
  font-weight: 650;
  font-size: .97rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-primary {
  background: var(--brand);
  color: var(--on-brand);           /* 6.77:1 light, 7.14:1 dark */
}
.btn-primary:hover { background: var(--brand-deep); }

.btn-secondary {
  background: var(--surface);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn-secondary:hover { background: var(--bg-soft); }

.btn-disabled {
  background: var(--bg-sunken);
  border-color: var(--border);
  color: var(--text-muted);
  cursor: default;
}

/* -------------------------------------------------------- page header ---- */

.page-head {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  padding: clamp(1.75rem, 5vw, 3rem) 0 clamp(1.25rem, 3vw, 2rem);
}

.eyebrow {
  font-size: .78rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: .5rem;
}

.page-head h1 { margin-bottom: .25em; }

/* in the header the section's own padding closes the block — the button
   row only needs a small gap above it */
.page-head .cta-row { margin: .85rem 0 0; }

.page-sub {
  font-size: 1.08rem;
  color: var(--text-muted);
  margin: 0;
}

/* padding-block only — the shorthand would wipe out .wrap's padding-inline
   and pull the body text 2rem left of the page title above it */
.page-body { padding-block: clamp(2rem, 5vw, 3rem) 4rem; }
.page-body > :first-child { margin-top: 0; }
.page-body h2 { margin-top: 2.5rem; }
/* :first-child, not :first-of-type — a page whose first h2 follows a grid or
   a paragraph still needs its heading gap */
.page-body > h2:first-child { margin-top: 0; }

/* prose lists get the reading indent; component lists (.venue-facts,
   .timeline, .people-grid …) keep their own padding: 0 */
.page-body ul:not([class]), .page-body ol:not([class]) { padding-left: 1.3rem; }
.page-body ul:not([class]) > li, .page-body ol:not([class]) > li { margin-bottom: .4rem; }

/* ------------------------------------------------------------ section ---- */

.section { padding: clamp(1.25rem, 2.25vw, 1.75rem) 0; }
.section--soft { background: var(--bg-soft); border-block: 1px solid var(--border); }

/* the section's own padding is the spacing — don't stack a trailing
   paragraph margin on top of it */
.section > .wrap > :last-child { margin-bottom: 0; }

.section-head { margin-bottom: .75rem; }

/* justified without hyphenation, so word spacing carries the whole line */
.justified { text-align: justify; hyphens: none; text-wrap: pretty; }
.section-head p { color: var(--text-muted); margin-bottom: 0; }
.section-head > :last-child { margin-bottom: 0; }

/* -------------------------------------------------------------- cards ---- */

.card-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--brand-tint);
}

.card h3 { margin-bottom: .4rem; }
.card p:last-child { margin-bottom: 0; }

/* --------------------------------------------------------- date table ---- */

.dates {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

.dates-row {
  display: flex;
  flex-wrap: wrap;
  gap: .25rem 1rem;
  align-items: baseline;
  justify-content: space-between;
  padding: .4rem 1.15rem;
  border-bottom: 1px solid var(--border);
}
.dates-row:last-child { border-bottom: 0; }

.dates-what { font-weight: 600; }
.dates-when { color: var(--text-muted); font-variant-numeric: tabular-nums; }

/* ----------------------------------------------------------- timeline ---- */

.timeline { list-style: none; margin: 0; padding: 0; }

.timeline > li {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 1rem;
  padding-bottom: 1.5rem;
  position: relative;
}

.slot-time {
  /* left-aligned so each time starts on the same margin as the page text */
  text-align: left;
  font-variant-numeric: tabular-nums;
  font-weight: 650;
  padding-top: 1.05rem;
}

/* trailing dash so the start time reads as the beginning of a range */
.slot-time > time:first-child::after { content: " \2013"; }

.slot-time .slot-end { display: block; font-weight: 400; color: var(--text-muted); font-size: .9rem; }

.slot-body {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.slot-body:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: var(--brand-tint);
}

/* h2 for correct document outline; sized like a card heading. */
.slot-body h2 { margin-top: 0; margin-bottom: .3rem; font-size: 1.12rem; }
.slot-body > p { color: var(--text-muted); margin-bottom: 0; }
.slot-body > p + .people { margin-top: 1.1rem; }

.slot--break .slot-body { background: var(--bg-soft); box-shadow: none; }
/* breaks and plain sessions (intro, mini-workshop, closing) are short entries
   with no speakers: pull the tag, title and description together */
.slot--break .slot-body,
.slot--session .slot-body { padding-block: 1rem; }
.slot--break .chip,
.slot--session .chip { margin-bottom: .3rem; }
.slot--break .slot-body h2,
.slot--session .slot-body h2 { margin-bottom: .1rem; }
/* a card holding only its title (intro, closing) is stretched to the height
   of the two-line time beside it, so centre the title vertically in it */
.slot-body:has(> h2:only-child) { display: flex; align-items: center; }
.slot-body > h2:only-child { margin-bottom: 0; }

.chip {
  display: inline-block;
  font-size: .72rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-weight: 700;
  padding: .18rem .6rem;
  border-radius: 999px;
  margin-bottom: .55rem;
  background: var(--chip-session-bg);
  color: var(--chip-session-fg);
}
.chip--panel   { background: var(--chip-panel-bg);   color: var(--chip-panel-fg); }
.chip--talk    { background: var(--chip-talk-bg);    color: var(--chip-talk-fg); }
.chip--break   { background: var(--chip-break-bg);   color: var(--chip-break-fg); }
.chip--session { background: var(--chip-session-bg); color: var(--chip-session-fg); }

/* people inside a schedule slot */
.people {
  list-style: none;
  margin: 0;
  padding: 0;
  /* columns of equal width, so every column starts on the same line; auto-fit
     drops unused columns, so a lone speaker (the keynote) gets the whole row */
  display: grid;
  gap: 1rem 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
}

.people li { display: flex; align-items: center; gap: .7rem; }
.people .person-name { white-space: nowrap; }

.people .avatar { width: 64px; height: 64px; margin: 0; flex: none; }
.people .avatar-initials { font-size: 1.2rem; }

.person-name { font-weight: 600; text-decoration-thickness: 1px; }
.person-affil { color: var(--text-muted); font-size: .88rem; }
/* in the schedule the role is the plain line and the institution the accent tag */
.person-role { color: var(--text-muted); font-size: .88rem; }
.people .person-affil {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  font-weight: 700;
  color: var(--accent);
}

.people .person-lines { display: flex; flex-direction: column; min-width: 0; line-height: 1.3; }
.people .person-lines .person-affil { margin-top: .15rem; }

@media (max-width: 700px) {
  .timeline > li { grid-template-columns: 1fr; gap: .45rem; }
  .slot-time { text-align: left; padding-top: 0; }
  .slot-time .slot-end { display: inline; }
  .slot-time > time:first-child::after { content: " \2013"; }
}

/* --------------------------------------------------------- people grid --- */

.people-grid {
  display: grid;
  gap: 1.15rem;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
}

.person-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.15rem;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.person-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--brand-tint);
}

.person-card .person-name { display: block; font-size: 1rem; }
.person-card .person-affil { display: block; }

.avatar {
  width: 84px; height: 84px;
  border-radius: 50%;
  margin: 0 auto .85rem;
  object-fit: cover;   /* portraits crop to the circle instead of letterboxing */
  background: var(--brand-tint);
  display: block;
}

/* Photo avatars wrap the <img> so a per-person `photo_zoom` scale is clipped
   to the circle instead of spilling over the layout. */
.avatar-photo { overflow: hidden; padding: 0; }
.avatar-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;   /* fill the circle, crop the overflow */
  display: block;
}

/* Logos, not faces: show the whole mark on a white disc rather than
   cropping it to fill. */
.avatar-photo--contain { background: #fff; }
.avatar-photo--contain img {
  object-fit: contain;
  padding: 18%;        /* keeps the mark off the rim of the circle */
}

.avatar-initials {
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--brand);
}

/* explicit `initials:` strings (e.g. "CASA") need to fit the same circle */
.avatar-initials--long { font-size: 1.05rem; letter-spacing: .02em; }
.people .avatar-initials--long { font-size: .9rem; }

/* unannounced speaker: an empty outline rather than a "T" for "TBD" */
.avatar-tbd {
  background: transparent;
  border: 2px dashed var(--border-strong);
}

.role-tag {
  display: inline-block;
  margin-top: .5rem;
  font-size: .7rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-tint);
  padding: .18rem .55rem;
  border-radius: 999px;
}

/* ------------------------------------------------------------- tables ---- */

.table-scroll {
  position: relative;               /* contain the absolutely-positioned .visually-hidden spans */
  overflow-x: auto;                 /* wide tables scroll, the page never does */
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

table { width: 100%; border-collapse: collapse; font-size: .95rem; }

thead th {
  text-align: left;
  font-size: .75rem;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-soft);
  padding: .8rem 1rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody td { padding: .85rem 1rem; border-bottom: 1px solid var(--border); vertical-align: top; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--bg-soft); }

.candidate-name { font-weight: 650; }
.candidate-role,
.candidate-market {
  display: block;
  font-size: .85rem;
  color: var(--text-muted);
}
.candidate-market { white-space: nowrap; }
.candidate-role { margin-top: .15rem; }
.candidate-market { margin-bottom: .4rem; }

.candidates th, .candidates td { padding-inline: .9rem; }
.candidates td:nth-child(1) { min-width: 10rem; }
.candidates td:nth-child(2) { min-width: 9.5rem; }
.candidates td:nth-child(3) { min-width: 14rem; }
.candidates td:nth-child(4) { min-width: 15.5rem; }
.candidates td:nth-child(6) { white-space: nowrap; }
.nowrap { white-space: nowrap; }

.tag-list, .materials { list-style: none; margin: 0; padding: 0; }
.tag-list { display: flex; flex-wrap: wrap; gap: .3rem; }
.materials li + li { margin-top: .2rem; }

/* Research areas: one coloured box each. Pairs are Tailwind 100/800 (all clear
   4.5:1). An area with no rule falls back to the grey on .area itself. */
.area {
  font-size: .78rem;
  font-weight: 600;
  line-height: 1.3;
  padding: .18rem .55rem;
  border-radius: 6px;
  background: #e2e8f0;
  color: #334155;
  white-space: nowrap;
}
.area--cpu-microarch        { background: #dbeafe; color: #1e40af; }
.area--gpu-microarch        { background: #dcfce7; color: #166534; }
.area--interconnects        { background: #cffafe; color: #155e75; }
.area--ml-accelerators      { background: #ede9fe; color: #5b21b6; }
.area--non-ml-accelerators  { background: #f3ead9; color: #6b4a14; }
.area--wafer-scale          { background: #fef3c7; color: #92400e; }
.area--ml-systems           { background: #e0e7ff; color: #3730a3; }
.area--verification         { background: #ecfccb; color: #3f6212; }
.area--quantum              { background: #e0f2fe; color: #075985; }
.area--pl-sw-support        { background: #ccfbf1; color: #115e59; }
.area--hardware-security    { background: #fee2e2; color: #991b1b; }
.area--datacenter           { background: #ffedd5; color: #9a3412; }
.area--sustainability       { background: #d1fae5; color: #065f46; }
.area--memory-storage       { background: #fce7f3; color: #9d174d; }

.candidates .pill {
  font-size: .75rem;
  padding: .12rem .55rem;
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-weight: 500;
}

.pill {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  padding: .18rem .6rem;
  border-radius: 999px;
  background: var(--brand-tint);
  color: var(--chip-panel-fg);
  white-space: nowrap;
}

/* -------------------------------------------------------------- notes ---- */

.note {
  border-left: 4px solid var(--accent);
  background: var(--accent-tint);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: .9rem 1.2rem;
  margin: 1.5rem 0;
}
.note p:last-child { margin-bottom: 0; }

.empty-state {
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 2.25rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  background: var(--bg-soft);
}
.empty-state h3 { color: var(--text); }
.empty-state p:last-child { margin-bottom: 0; }

/* ---------------------------------------------------------------- map ---- */

.map-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 280px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.venue-facts {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  gap: .9rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.venue-facts li {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .95rem 1.1rem;
  background: var(--surface);
}

.venue-facts .fact-label { display: block; margin-bottom: .2rem; }

/* ------------------------------------------------------------ archive ---- */

.edition {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  background: var(--surface);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.edition:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: var(--brand-tint);
}

.edition h2 { margin-top: 0; }

.edition-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .25rem 1rem;
  color: var(--text-muted);
  font-size: .92rem;
  margin-bottom: .9rem;
}

/* ------------------------------------------------------------- footer ---- */

.site-footer {
  background: var(--bg-sunken);
  border-top: 1px solid var(--border);
  padding: 2rem 0 1.25rem;
  font-size: .93rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 2fr 1fr 1fr;
}

@media (max-width: 750px) {
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}

.footer-title { font-size: 1.12rem; margin-bottom: .5rem; }
.site-footer p { color: var(--text-muted); }
.footer-links h3 {
  font-size: .78rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: .6rem;
}
.footer-links ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .4rem; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { text-decoration: underline; }

.footer-base {
  margin-top: 2.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}
.footer-base p { margin-bottom: .35rem; }
.footer-colophon { font-size: .85rem; }

.footer-org { display: flex; align-items: center; gap: .85rem; }
/* transparent PNG, so it needs no white plate behind it */
.footer-org-logo { width: 42px; height: auto; flex: none; }

/* ------------------------------------------------------------ utility ---- */

/* An unfilled `<placeholder>` value — visibly provisional, not a link. */
.placeholder {
  font-family: var(--font-mono);
  font-size: .9em;
  background: var(--bg-soft);
  border: 1px dashed var(--border-strong);
  border-radius: 5px;
  padding: .05em .4em;
  color: var(--text-muted);
}

.text-muted { color: var(--text-muted); }
.mb-0 { margin-bottom: 0; }
.mt-lg { margin-top: 2rem; }

/* --------------------------------------------------- a11y preferences ---- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* Windows High Contrast / forced-colors: keep structure visible when the OS
   replaces our palette. */
@media (forced-colors: active) {
  .card, .slot-body, .person-card, .dates, .table-scroll, .venue-facts li,
  .edition, .chip, .pill, .area, .btn, .empty-state {
    border: 1px solid CanvasText;
  }
  .site-nav a.is-active { outline: 2px solid CanvasText; }
}

@media print {
  .site-header, .site-footer, .cta-row, .skip-link, .map-frame { display: none; }
  body { font-size: 11pt; color: #000; background: #fff; }
  .hero { background: none; border: 0; }
  .card, .slot-body, .person-card { box-shadow: none; border: 1px solid #999; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: .85em; }
}