/* Swap the background by editing --page-bg at the two BACKGROUND SWAP POINTS.
   One is light and one is dark. Every surface derives from those two values:
   --raised and --rule are mixed from the ground, so they follow it automatically.

   Dark mode is offered three ways and all three agree:
     1. the reader's own system setting, via the prefers-color-scheme block below,
        which works with JavaScript switched off;
     2. the visible Dark toggle in the masthead;
     3. the remembered choice in localStorage.
   The :not([data-theme="light"]) guard means a reader who has explicitly picked
   Light keeps Light even on a phone set to dark. */
:root {
  /* BACKGROUND SWAP POINT, light */
  --page-bg: #FFFFFF;
  --ink: #211F1C;
  --quiet: #625E57;
  --evergreen: #185649;
  --madrona: #A84420;

  /* BACKGROUND SWAP POINT, dark. Applied by the two blocks below, declared once here. */
  --dark-page-bg: #1A1A19;
  --dark-ink: #F2EFE8;
  --dark-quiet: #C3BEB4;
  --dark-evergreen: #82CBB8;
  --dark-madrona: #F09A72;

  /* Derived surfaces. Percentages are tuned to stay visible on a pure white ground.
     --rule is the decorative hairline between rows and days. --edge is the border of
     anything a reader can actually press, and is mixed harder so it clears the 3:1
     WCAG 1.4.11 bar for control boundaries; --rule is deliberately left lighter,
     because 185 rows separated at 3:1 would read as a table grid. */
  --raised: color-mix(in srgb, var(--ink) 6%, var(--page-bg));
  --rule: color-mix(in srgb, var(--ink) 32%, var(--page-bg));
  --edge: color-mix(in srgb, var(--ink) 50%, var(--page-bg));

  --type-data: .75rem;
  --type-meta: .875rem;
  --type-body: 1rem;
  --type-title: 1.25rem;
  --type-display: clamp(2.25rem, 9vw, 4.75rem);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --page-bg: var(--dark-page-bg);
    --ink: var(--dark-ink);
    --quiet: var(--dark-quiet);
    --evergreen: var(--dark-evergreen);
    --madrona: var(--dark-madrona);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --page-bg: var(--dark-page-bg);
  --ink: var(--dark-ink);
  --quiet: var(--dark-quiet);
  --evergreen: var(--dark-evergreen);
  --madrona: var(--dark-madrona);
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html { background: var(--page-bg); }
body {
  margin: 0;
  background-color: var(--page-bg);
  color: var(--ink);
  font-family: Karla, "Helvetica Neue", Arial, sans-serif;
  font-size: var(--type-body);
  overflow-wrap: anywhere;
  line-height: 1.45;
}

button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: var(--evergreen); text-underline-offset: 3px; }

:focus-visible {
  outline: 2px solid var(--evergreen);
  outline-offset: 2px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--page-bg);
  transform: translateY(-150%);
}
.skip-link:focus { transform: none; }

.masthead {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 18px 22px;
  border-bottom: 4px solid var(--evergreen);
}

.eyebrow, .dateline, .colophon, .event-time, .result-summary {
  font-family: "DM Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

.eyebrow {
  max-width: 68ch;
  margin: 0 0 6px;
  color: var(--quiet);
  font-size: var(--type-data);
  letter-spacing: .05em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-family: Fraunces, "Iowan Old Style", Palatino, Georgia, serif;
  font-size: var(--type-display);
  font-variation-settings: "SOFT" 60, "WONK" 1;
  font-weight: 760;
  letter-spacing: -.04em;
  line-height: .94;
}

.dateline {
  margin: 12px 0 0;
  color: var(--quiet);
  font-size: var(--type-data);
  letter-spacing: .025em;
  text-transform: uppercase;
}

.theme-toggle, .when-bar button, .city-chips button, #clear-city, #clear-search,
.calendar-button, .empty-state button {
  min-height: 44px;
  border: 1px solid var(--edge);
  border-radius: 3px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-weight: 700;
}

.theme-toggle { flex: 0 0 auto; min-width: 58px; padding: 8px 10px; }

.when-bar {
  position: sticky;
  z-index: 20;
  top: 0;
  background: var(--raised);
  box-shadow: 0 1px 0 var(--rule);
}

.when-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 1px;
  background: var(--rule);
}
.city-chips::-webkit-scrollbar { display: none; }
.when-bar button { width: 100%; padding: 8px 3px; border-color: transparent; border-radius: 0; background: var(--page-bg); }
.when-bar button:hover { color: var(--madrona); }
.when-bar button.is-active { background: var(--evergreen); color: var(--page-bg); }

main { max-width: 1080px; margin: 0 auto; padding: 24px 18px 56px; }
.controls { max-width: 760px; }
.controls > label, .city-heading h2 {
  display: block;
  margin: 0 0 7px;
  font-size: var(--type-data);
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.search-wrap { display: flex; gap: 6px; }
input[type="search"] {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--quiet);
  border-radius: 3px;
  background: var(--page-bg);
  color: var(--ink);
  font-size: var(--type-body);
}
input::placeholder { color: var(--quiet); opacity: 1; }
#clear-search { padding: 8px 12px; }

.city-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 20px; }
.city-heading h2 { margin: 0; }
#clear-city { min-height: 36px; padding: 4px 8px; border-color: transparent; color: var(--evergreen); }
.city-chips { display: flex; gap: 7px; margin: 9px -18px 0; padding: 2px 18px 7px; overflow-x: auto; scrollbar-width: none; }
.city-chips button { flex: 0 0 auto; padding: 7px 11px; transition: background-color 140ms ease, color 140ms ease; }
.city-chips button.is-active { background: var(--evergreen); border-color: var(--evergreen); color: var(--page-bg); }
.city-count { font-family: "DM Mono", monospace; font-size: var(--type-data); }

.results-head {
  min-height: 58px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  border-bottom: 1px solid var(--rule);
}
#result-summary { margin: 0 0 9px; color: var(--quiet); font-family: "DM Mono", monospace; font-size: var(--type-data); text-transform: uppercase; }
.live-region { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

.day-group { position: relative; }
.day-heading {
  position: sticky;
  z-index: 10;
  top: 101px;
  display: flex;
  align-items: baseline;
  gap: 9px;
  min-height: 58px;
  margin: 0;
  padding: 7px 0 5px;
  border-bottom: 1px solid var(--rule);
  background: var(--page-bg);
}
.day-dow { font-family: "DM Mono", monospace; color: var(--madrona); font-size: var(--type-data); letter-spacing: .07em; }
.day-num { font-family: Fraunces, Georgia, serif; font-size: var(--type-display); font-variation-settings: "SOFT" 60, "WONK" 1; font-weight: 750; line-height: 1; }
.day-month { font-size: var(--type-meta); font-weight: 800; text-transform: uppercase; }

.event-row { --kind: var(--quiet); border-bottom: 1px solid var(--rule); border-left: 3px solid var(--kind); }
.event-row[data-kind="reading"] { --kind: var(--evergreen); }
.event-row[data-kind="book-club"] { --kind: var(--madrona); }
.event-row[data-kind="kids"] { --kind: var(--madrona); }
.event-row[data-kind="workshop"] { --kind: var(--evergreen); }
.event-toggle {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) 18px;
  gap: 9px;
  align-items: start;
  width: 100%;
  min-height: 76px;
  padding: 13px 5px 13px 10px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}
.event-toggle:hover { background: var(--raised); }
.event-time { padding-top: 3px; color: var(--quiet); font-size: var(--type-data); line-height: 1.25; }
.event-main { min-width: 0; }
.new-badge {
  display: inline-block;
  margin: 0 0 3px;
  padding: 1px 6px;
  border-radius: 3px;
  background: var(--madrona);
  color: var(--page-bg);
  font-family: "DM Mono", monospace;
  font-size: .6875rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.new-badge[hidden] { display: none; }
.event-title { display: block; font-family: Fraunces, Georgia, serif; font-size: var(--type-title); font-weight: 660; line-height: 1.17; }
.event-author { display: block; margin-top: 3px; color: var(--quiet); font-style: italic; line-height: 1.2; }
.event-author:empty { display: none; }
.event-place { display: block; margin-top: 6px; color: var(--quiet); font-size: var(--type-meta); font-variant-caps: all-small-caps; font-weight: 750; letter-spacing: .055em; line-height: 1.2; }
.kind-tag {
  grid-column: 2;
  align-self: start;
  padding: 3px 5px;
  border: 0;
  color: var(--kind);
  font-size: var(--type-data);
  font-weight: 800;
  line-height: 1.15;
  text-transform: uppercase;
  transition: background-color 140ms ease, color 140ms ease;
}
.expand-mark { color: var(--evergreen); font-family: "DM Mono", monospace; font-size: var(--type-title); line-height: 1; text-align: center; }
.event-toggle[aria-expanded="true"] .expand-mark { transform: rotate(45deg); }
.event-details { background: var(--raised); overflow: hidden; }
.details-inner { max-width: 68ch; padding: 2px 16px 17px 81px; }
.event-note { margin: 0 0 10px; }
.event-note:empty { display: none; }
.published-time { margin: 0; color: var(--quiet); font-size: var(--type-meta); }
.event-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; margin-top: 14px; }
.calendar-button { padding: 8px 12px; background: var(--evergreen); border-color: var(--evergreen); color: var(--page-bg); }
.store-link { min-height: 44px; display: inline-flex; align-items: center; font-weight: 750; }

.empty-state { max-width: 600px; padding: 42px 0; }
.empty-state h2 { margin: 0; font-family: Fraunces, Georgia, serif; font-size: var(--type-title); }
.empty-state p { color: var(--quiet); }
.empty-state button { padding: 8px 14px; background: var(--evergreen); border-color: var(--evergreen); color: var(--page-bg); }
.error-state { padding: 32px 0; color: var(--madrona); }

.colophon {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 18px 40px;
  border-top: 4px solid var(--evergreen);
  color: var(--quiet);
  font-family: "DM Mono", monospace;
  font-size: var(--type-data);
  line-height: 1.6;
}
.colophon p { margin: 0 0 7px; }

@media (min-width: 560px) {
  .when-inner { grid-template-columns: repeat(4, 1fr); }
  .day-heading { top: 57px; }
}

@media (min-width: 760px) {
  .masthead { padding: 44px 32px 28px; }
  .when-inner { padding-inline: 26px; }
  .when-inner { background: var(--page-bg); gap: 6px; }
  .when-bar button { border-color: var(--edge); }
  main { padding: 32px 32px 72px; }
  .city-chips { margin-inline: 0; padding-inline: 0; }
  .day-group { display: grid; grid-template-columns: 150px minmax(0, 1fr); }
  .day-heading {
    grid-column: 1;
    top: 61px;
    align-self: start;
    flex-wrap: wrap;
    align-content: center;
    border-bottom: 0;
    border-right: 1px solid var(--rule);
  }
  .day-heading > * { flex-basis: 100%; }
  .day-num { font-size: var(--type-display); }
  .day-events { grid-column: 2; }
  .event-toggle { grid-template-columns: 78px minmax(0, 1fr) 105px 18px; padding: 15px 10px 15px 18px; }
  .event-title { font-size: var(--type-title); }
  .kind-tag { grid-column: 3; align-self: start; justify-self: end; }
  .details-inner { padding-left: 96px; }
  .colophon { padding-inline: 32px; display: flex; justify-content: space-between; gap: 24px; }
}

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

.seo-faq { max-width: 760px; margin: 40px auto 0; padding-top: 24px; border-top: 1px solid var(--rule); }
.seo-faq h2 { font-family: Fraunces, Georgia, serif; font-size: var(--type-title); margin: 0 0 14px; }
.seo-faq h3 { font-size: var(--type-body); margin: 18px 0 4px; }
.seo-faq p { margin: 0; color: var(--quiet); line-height: 1.55; }
.seo-faq .seo-feeds { margin-top: 20px; font-family: "DM Mono", monospace; font-size: var(--type-data); }

.authors-main { max-width: 760px; margin: 0 auto; padding: 24px 18px 56px; }
.author-intro { margin: 0 0 20px; color: var(--quiet); line-height: 1.5; max-width: 62ch; }
.author-letter {
  position: sticky;
  top: 0;
  z-index: 5;
  margin: 0;
  padding: 6px 0;
  background: var(--page-bg);
  border-bottom: 1px solid var(--rule);
  font-family: "DM Mono", monospace;
  color: var(--madrona);
  font-size: var(--type-data);
  letter-spacing: .07em;
}
.author-list { list-style: none; margin: 0 0 20px; padding: 0; }
.author-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
}
.author-list a { font-family: Fraunces, Georgia, serif; font-size: var(--type-title); font-weight: 660; }
.author-count { flex: 0 0 auto; color: var(--quiet); font-family: "DM Mono", monospace; font-size: var(--type-data); white-space: nowrap; }

@media print {
  @page { margin: 14mm; }
  :root { --ink: #000; --quiet: #444; --rule: #bbb; }
  body { font-size: 10pt; }
  .skip-link, .theme-toggle, .when-bar, .controls, .results-head, .kind-tag, .expand-mark, .event-details, .colophon { display: none !important; }
  .masthead { padding: 0 0 6mm; border-bottom-width: 2px; }
  h1 { font-size: 28pt; }
  main { max-width: none; padding: 0; }
  .day-heading { position: static; min-height: 0; break-after: avoid; }
  .event-row { break-inside: avoid; border-left: 0; }
  .event-toggle { min-height: 0; padding: 3mm 0; grid-template-columns: 22mm 1fr; }
  .event-toggle > :not(.event-time):not(.event-main) { display: none; }
}