:root {
  --bg: #f4f8f9;
  --surface: #fff;
  --text: #12303a;
  --muted: #587179;
  --primary: #0e4f61;
  --accent: #f28c38;
  --line: rgba(14, 79, 97, .14);
  --shadow: 0 12px 30px rgba(10, 61, 75, .07);
  --code: #0f172a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif;
}

main {
  max-width: 920px;
  margin: 0 auto;
  padding: clamp(24px, 5vw, 64px) 20px 48px;
}

h1 {
  margin: .35em 0;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.1;
}

h2 { margin: 0 0 12px; font-size: 1.25rem; }
h3 { margin: 0 0 4px; font-size: 1.35rem; }
a { color: var(--primary); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.eyebrow {
  margin: 0;
  color: var(--primary);
  font-size: .82rem;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.intro, .sub {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.sub { margin-bottom: 1.2em; }

.links, .session-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin: 18px 0 30px;
}

.links a { font-weight: 650; }

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  margin: 18px 0 30px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, .72);
  font-size: .75rem;
  font-weight: 700;
  line-height: 1;
}

.links .language-switch { margin: 0; }

.language-switch a,
.language-switch span {
  min-width: 30px;
  padding: 6px 8px;
  border-radius: 999px;
  color: var(--muted);
  text-align: center;
  text-decoration: none;
}

.language-switch [aria-current="page"] {
  background: var(--bg);
  color: var(--primary);
}

.language-switch a:hover {
  background: var(--bg);
  color: var(--primary);
}

.language-switch a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 16px;
}

.card {
  margin: 16px 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card h2 { margin: 0 0 12px; }
.card h2 small { color: var(--muted); font-weight: 500; }
.card h3 { margin: 0 0 4px; }
.place { margin: 0 0 16px; color: var(--muted); }
.meta { margin: 0 0 18px; color: var(--muted); font-size: .94rem; }

.center-search {
  margin: 20px 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
}

.center-search > label { display: block; margin-bottom: 7px; font-weight: 700; }
.center-search-controls { display: flex; flex-wrap: wrap; gap: 8px; }
.center-search input { flex: 1 1 260px; min-width: 0; padding: 10px 12px; border: 1px solid #cbd5e1; border-radius: 9px; background: var(--surface); color: var(--text); font: inherit; }
.center-search button { padding: 10px 14px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface); color: var(--primary); font: 650 .95rem system-ui, sans-serif; cursor: pointer; }
.center-search button:hover { background: var(--bg); }
.center-search-help, .center-search-results { margin: 7px 0 0; color: var(--muted); font-size: .9rem; }
.center-search-results { font-weight: 650; }

.status, .badge {
  display: inline-flex;
  align-items: center;
  margin-bottom: 12px;
  padding: 4px 10px;
  border: 1px solid #fed7aa;
  border-radius: 999px;
  background: #fff7ed;
  color: #9a3412;
  font-size: .82rem;
  font-weight: 700;
}

.done, .badge.done {
  border-color: #bbf7d0;
  background: #f0fdf4;
  color: #166534;
}

.button, .btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 4px 6px 4px 0;
  padding: 10px 15px;
  border: 0;
  border-radius: 11px;
  background: var(--primary);
  color: #fff;
  font: 700 1rem system-ui, sans-serif;
  text-decoration: none;
  cursor: pointer;
}

.button:hover, .btn:hover { background: #0a3d4b; }
.button.secondary, .btn.sec { background: #374151; }
.button.secondary:hover, .btn.sec:hover { background: #1f2937; }
.button.contact-cta { background: var(--accent); color: #172b31; }
.button.contact-cta:hover { background: #df7625; }

ul { padding-left: 1.2em; }
li { margin: .5em 0; }

details { margin-top: 24px; }
summary { color: var(--primary); font-weight: 700; cursor: pointer; }
.schedule { width: 100%; margin-top: 12px; border-collapse: collapse; }
.schedule th, .schedule td { padding: 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.schedule th { color: var(--muted); font-size: .9rem; }

footer { margin-top: 38px; color: var(--muted); font-size: .9rem; }

/* Components used by the Agost materials page. */
.tabs { display: flex; gap: 6px; margin: 10px 0 8px; }
.tabs button { padding: 4px 14px; border: 1px solid var(--line); border-radius: 999px; background: #fff; font: inherit; font-size: .9rem; cursor: pointer; }
.tabs button[aria-pressed="true"] { border-color: var(--primary); background: var(--primary); color: #fff; }
pre { margin: 8px 0; padding: 14px 16px; border-radius: 10px; background: var(--code); color: #e2e8f0; white-space: pre-wrap; word-break: break-word; font: 15px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.note { margin: .5em 0 0; color: var(--muted); font-size: .92rem; }
.qr { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.qr img { width: 150px; height: 150px; padding: 6px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.url { color: var(--primary); font: 700 1.3rem system-ui, sans-serif; }
ul.tools { margin: .4em 0 0; padding-left: 1.1em; }
.session-head { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 16px; }
.session-title { margin: .25em 0; font-size: 1.25rem; }
.session-nav { gap: 8px; margin: 14px 0; }
.session-nav a { padding: 7px 12px; border: 1px solid var(--line); border-radius: 999px; background: #fff; font-weight: 650; text-decoration: none; }
.session-nav a:hover { text-decoration: underline; }
.callout { margin: 14px 0; padding: 10px 14px; border-left: 4px solid var(--accent); border-radius: 0 10px 10px 0; background: #fff7ed; }
.resources { padding-left: 1.2em; }
.resources li { margin: .45em 0; }
.license { margin-top: 14px; }

body.big main { display: flex; max-width: none; min-height: 100vh; flex-direction: column; align-items: center; justify-content: center; }
body.big .qr img { width: min(60vh, 70vw); height: min(60vh, 70vw); }
body.big .url { font-size: 3rem; }
body.big .hide-big { display: none; }

@media (max-width: 560px) {
  main { padding-right: 16px; padding-left: 16px; }
  .card { padding: 18px; }
}