/* CSD Newsletter Archive — single shared stylesheet.
   No external fonts, icons, or frameworks: system font stack only,
   works on any static host, fully offline-capable. */

:root {
  --bg: #f6f5f1;
  --surface: #ffffff;
  --ink: #1f2933;
  --ink-soft: #52606d;
  --line: #e4e1d8;
  --accent: #1d5c4d;      /* deep CSD green */
  --accent-ink: #ffffff;
  --accent-soft: #e3efeb;
  --event: #1c5d8f;
  --event-soft: #e3eef7;
  --pin: #8a5a00;
  --pin-soft: #fdf1d7;
  --focus: #b7791f;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171c20;
    --surface: #1f262c;
    --ink: #e8ebee;
    --ink-soft: #a5b0ba;
    --line: #333d46;
    --accent: #6fc3ab;
    --accent-ink: #10201b;
    --accent-soft: #24352f;
    --event: #7db8e8;
    --event-soft: #20313f;
    --pin: #e5b567;
    --pin-soft: #3a2f1b;
    --focus: #e5b567;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.55;
}

.wrap {
  max-width: 60rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Skip link and screen-reader helpers */

.skip-link {
  position: absolute;
  left: -9999px;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.5rem 1rem;
  border-radius: 0 0 var(--radius) 0;
  z-index: 10;
}

.skip-link:focus {
  left: 0;
  top: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Header, nav, footer */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.25rem 1.5rem;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.site-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.site-title a {
  color: var(--ink);
  text-decoration: none;
}

.site-nav {
  display: flex;
  gap: 1.1rem;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.site-footer {
  margin-top: 3rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.875rem;
}

.site-footer .wrap {
  padding-top: 1.25rem;
  padding-bottom: 1.5rem;
}

/* Main content */

main {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

h1 {
  font-size: 1.7rem;
  line-height: 1.2;
  margin: 0.5rem 0 0.5rem;
}

h2 {
  font-size: 1.25rem;
  margin: 2rem 0 0.5rem;
}

.lede {
  color: var(--ink-soft);
  max-width: 46rem;
  margin-top: 0;
}

.tier-blurb {
  color: var(--ink-soft);
  font-size: 0.925rem;
  margin: 0.25rem 0 0.75rem;
}

/* Item cards and compact lists */

.items {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
}

.item article > :first-child {
  margin-top: 0;
}

.item article > :last-child {
  margin-bottom: 0;
}

.item-title {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  line-height: 1.35;
}

.item-title a {
  color: var(--ink);
  text-decoration: none;
}

.item-title a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.meta {
  margin: 0 0 0.4rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.75rem;
}

.body {
  margin: 0;
  white-space: pre-line;
}

.event-dates {
  margin: 0.45rem 0 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--event);
}

/* Compact "Other schools" tier: lighter rows instead of cards */

.items.compact {
  gap: 0;
}

.items.compact .item {
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
  padding: 0.55rem 0.25rem;
  background: transparent;
}

.items.compact .item:first-child {
  border-top: 0;
}

/* Badges */

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 0.08rem 0.5rem;
  border-radius: 999px;
}

.badge-event {
  background: var(--event-soft);
  color: var(--event);
}

.badge-announcement {
  background: var(--accent-soft);
  color: var(--accent);
}

.badge-pin {
  background: var(--pin-soft);
  color: var(--pin);
}

.empty {
  color: var(--ink-soft);
  background: var(--surface);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

/* Events page */

.event-month h2 {
  border-bottom: 2px solid var(--accent-soft);
  padding-bottom: 0.3rem;
}

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

.event-row {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 0.25rem 1.25rem;
  padding: 0.8rem 0.25rem;
  border-bottom: 1px solid var(--line);
}

.event-row:last-child {
  border-bottom: 0;
}

.event-date {
  margin: 0;
  font-weight: 700;
  color: var(--accent);
  display: flex;
  flex-direction: column;
}

.event-weekday {
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.event-detail .item-title {
  font-size: 1rem;
}

.event-detail .meta {
  margin-bottom: 0;
}

/* Archive controls */

.archive-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.25rem 0 0.5rem;
}

.archive-controls input[type="search"] {
  flex: 2 1 16rem;
}

.archive-controls select {
  flex: 1 1 9rem;
}

.archive-controls input,
.archive-controls select {
  font: inherit;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.5rem 0.7rem;
}

.result-count {
  color: var(--ink-soft);
  font-size: 0.85rem;
  margin: 0.25rem 0 0.75rem;
}

.archive-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.archive-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
}

.archive-item .source {
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.archive-item[hidden] {
  display: none;
}

/* About page */

.about-block h2 {
  margin-top: 1.5rem;
}

/* Small screens */

@media (max-width: 640px) {
  h1 {
    font-size: 1.4rem;
  }

  .event-row {
    grid-template-columns: 1fr;
  }

  .event-date {
    flex-direction: row;
    gap: 0.5rem;
    align-items: baseline;
  }

  .archive-controls input,
  .archive-controls select {
    flex-basis: 100%;
  }
}