/* White and navy. Everything on the page draws from these two families —
   navy for ink, lines and accents; white for ground. */
:root {
  --bg: #ffffff;
  --bg-alt: #f4f7fb;
  --bg-sunk: #e9eff7;
  --ink: #0b2545;
  --ink-soft: #3d5a80;
  --ink-faint: #6d86a4;
  --line: #dbe4ef;
  --line-strong: #bccddf;
  --accent: #10345e;
  --accent-soft: #e7eff8;
  --accent-ink: #071c33;
  --amber: #8a5a00;
  --amber-soft: #fbf1dd;
  --card: #ffffff;
  --shadow: 0 1px 2px rgba(11, 37, 69, .06), 0 8px 24px rgba(11, 37, 69, .08);
  --radius: 14px;
  --maxw: 1080px;

  /* Light only — the page keeps its white ground even when the visitor's
     OS is set to dark mode. Also keeps native controls (search field,
     checkbox) rendering light rather than inverted. */
  color-scheme: light;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 150px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, -apple-system, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0 0 .4em; line-height: 1.15; letter-spacing: -.02em; }
p { margin: 0 0 1em; }
a { color: var(--accent); }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -9999px;
}
.skip-link:focus {
  left: 16px; top: 16px;
  z-index: 100;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
}

/* ---------- masthead ---------- */

.masthead {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.masthead-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 64px;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -.02em;
}
.wordmark-mark {
  width: 23px; height: 23px;
  flex: none;
  color: var(--accent);
  display: block;
}
.wordmark-text em { font-style: normal; color: var(--accent); }

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

.hero {
  padding: 52px 0 40px;
  background:
    radial-gradient(900px 340px at 12% -10%, var(--accent-soft), transparent 65%),
    var(--bg);
}
.hero h1 {
  font-size: clamp(2rem, 5.2vw, 3.2rem);
  max-width: 16ch;
  margin-bottom: 0;
}

/* ---------- controls ---------- */

.controls {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-top: 24px;
}
.controls-inner {
  padding-top: 14px;
  padding-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.search-wrap { position: relative; }
.search-icon {
  position: absolute;
  left: 14px; top: 50%;
  transform: translateY(-50%);
  width: 18px; height: 18px;
  color: var(--ink-faint);
  pointer-events: none;
}
#search {
  width: 100%;
  padding: 11px 14px 11px 42px;
  font: inherit;
  font-size: .98rem;
  color: var(--ink);
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: none;
}
#search:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
#search::-webkit-search-cancel-button { cursor: pointer; }

.filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
}
.filter-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.filter-label {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink-faint);
}
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  font: inherit;
  font-size: .85rem;
  font-weight: 500;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 5px 13px;
  cursor: pointer;
  transition: background .12s, color .12s, border-color .12s;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: .85rem;
  color: var(--ink-soft);
  cursor: pointer;
  margin-left: auto;
  white-space: nowrap;
}
.toggle input { accent-color: var(--accent); width: 15px; height: 15px; }

/* ---------- results ---------- */

main { padding: 28px 24px 56px; }

.result-count {
  font-size: .85rem;
  color: var(--ink-faint);
  margin-bottom: 20px;
}

.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;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}

.event-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  text-align: left;
}

.event-table thead th {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--bg-sunk);
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink-faint);
  padding: 11px 16px;
  border-bottom: 1px solid var(--line-strong);
  white-space: nowrap;
}

.event-table .col-name    { width: 38%; }
.event-table .col-dates   { width: 18%; }
.event-table .col-place   { width: 24%; }
.event-table .col-audience{ width: 20%; }


.event-row td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  font-size: .9rem;
}
.event-row:last-child td { border-bottom: 0; }
.event-row:hover td { background: var(--bg-alt); }
.event-row.is-featured td { background: var(--accent-soft); }
.event-row.is-featured td:first-child { box-shadow: inset 3px 0 0 var(--accent); }
.event-row.is-featured:hover td { background: var(--accent-soft); }
.event-row.is-past { opacity: .5; }

.event-title {
  font-size: .96rem;
  font-weight: 650;
  letter-spacing: -.01em;
  line-height: 1.35;
}
.event-title a { color: inherit; text-decoration: none; }
.event-title a:hover { color: var(--accent); text-decoration: underline; }

.event-blurb {
  font-size: .84rem;
  color: var(--ink-soft);
  margin: 4px 0 0;
  max-width: 46ch;
}

.date-range {
  display: block;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.ics-link {
  display: block;
  margin-top: 6px;
  text-align: left;
  padding: 0;
  font: inherit;
  font-size: .78rem;
  font-weight: 500;
  color: var(--accent);
  background: none;
  border: 0;
  border-bottom: 1px solid transparent;
  cursor: pointer;
}
.ics-link:hover { border-bottom-color: currentColor; }

.place-name { display: block; }
.format-note {
  display: inline-block;
  margin-top: 5px;
  font-size: .74rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--ink-faint);
}

.audience-text { display: block; color: var(--ink-soft); }
.col-audience .tag { margin-top: 7px; }

.tag {
  display: inline-block;
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--ink-soft);
}
/* Categories stay inside the navy family, separated by depth rather than
   hue, with amber reserved for policy so it still reads as distinct. */
.tag-industry { border-color: color-mix(in srgb, #10345e 55%, transparent); color: #10345e; }
.tag-research { border-color: color-mix(in srgb, #2a6f97 50%, transparent); color: #2a6f97; }
.tag-policy   { border-color: color-mix(in srgb, var(--amber) 55%, transparent); color: var(--amber); }
.tag-community{ border-color: color-mix(in srgb, #5b7fa6 55%, transparent); color: #4a6f96; }

.soon {
  display: inline-block;
  margin-top: 6px;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--amber);
  background: var(--amber-soft);
  border-radius: 999px;
  padding: 2px 8px;
  white-space: nowrap;
}

.btn {
  font: inherit;
  font-size: .84rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  color: var(--ink);
  background: var(--bg-alt);
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  padding: 7px 14px;
  cursor: pointer;
  transition: background .12s, border-color .12s, color .12s;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }

.empty {
  text-align: center;
  padding: 56px 24px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink-soft);
}
.empty h2 { font-size: 1.15rem; }
.empty pre {
  display: inline-block;
  text-align: left;
  background: var(--bg-sunk);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: .85rem;
  overflow-x: auto;
  max-width: 100%;
}
.empty code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

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

.site-footer {
  border-top: 1px solid var(--line);
  padding: 26px 0;
  font-size: .82rem;
  color: var(--ink-faint);
}
.footer-inner p { margin: 0 0 4px; max-width: 70ch; }
.footer-meta { color: var(--ink-faint); }

/* ---------- responsive ---------- */

/* Below tablet width the table stops scrolling sideways and each row
   becomes a stacked card, with the column headers reused as row labels. */
@media (max-width: 760px) {
  .hero { padding: 40px 0 28px; }
  .toggle { margin-left: 0; }

  .table-wrap { overflow-x: visible; }
  .event-table { min-width: 0; }
  .event-table thead { display: none; }
  .event-table, .event-table tbody, .event-table tr, .event-table td, .event-table th {
    display: block;
    width: auto;
  }
  /* Beats the percentage widths on .col-* set for the desktop table layout. */
  .event-table .col-name,
  .event-table .col-dates,
  .event-table .col-place,
  .event-table .col-audience { width: auto; }

  .event-row {
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
  }
  .event-row:last-child { border-bottom: 0; }
  .event-row td {
    padding: 0;
    border: 0;
    display: grid;
    grid-template-columns: 88px 1fr;
    gap: 10px;
    align-items: baseline;
    margin-top: 8px;
  }
  .event-row td:first-child {
    display: block;
    margin-top: 0;
  }
  .event-row td:not(:first-child)::before {
    content: attr(data-label);
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--ink-faint);
  }
  /* Keep every value beside its label rather than spilling under it. */
  .event-row td:not(:first-child) > * {
    grid-column: 2;
    justify-self: start;
    text-align: left;
  }
  .event-row:hover td,
  .event-row.is-featured td { background: transparent; box-shadow: none; }
  .event-row.is-featured { box-shadow: inset 3px 0 0 var(--accent); background: var(--accent-soft); }
  .event-blurb { max-width: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}