/* Advent Lessons public site. Everything is scoped under .al-site so it sits inside any host (frontendv1,
   the static export) without leaking. A sibling of Advent Hymnals: maroon, gold and dark green. */

/* The site's own fonts (OFL, latin subsets from Fontsource), served at /site-files/: no third-party stylesheet
   to wait for. Fraunces 650 is drawn with its 600. */
@font-face { font-family: "Fraunces"; src: url(/site-files/font-fraunces-500-normal.woff2) format("woff2"); font-weight: 400 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Fraunces"; src: url(/site-files/font-fraunces-600-normal.woff2) format("woff2"); font-weight: 600 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url(/site-files/font-source-serif-4-400-normal.woff2) format("woff2"); font-weight: 400 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url(/site-files/font-source-serif-4-400-italic.woff2) format("woff2"); font-weight: 400 700; font-style: italic; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url(/site-files/font-source-serif-4-600-normal.woff2) format("woff2"); font-weight: 600 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url(/site-files/font-inter-400-normal.woff2) format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url(/site-files/font-inter-500-normal.woff2) format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Inter"; src: url(/site-files/font-inter-600-normal.woff2) format("woff2"); font-weight: 600 700; font-style: normal; font-display: swap; }

:root {
  --al-bg: #fbf8f2;
  --al-paper: #ffffff;
  --al-ink: #1e2b2a;
  --al-soft: #56605d;
  --al-faint: #60665f; /* ≥4.8:1 on the page and its tinted panels, for small labels (WCAG AA) */
  --al-line: #e6e0d3;
  --al-tint: #f3eee3;
  --al-accent: #7a2834;
  --al-accent-ink: #ffffff;
  --al-accent-soft: #f5e6e8;
  --al-gold: #c99c45;
  --al-gold-soft: #f7efdc;
  --al-green: #1e2b2a;
  --al-band-ink: #f3ede2;
  --al-serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --al-text: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --al-sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --al-radius: 14px;
  --al-shadow: 0 1px 2px rgb(30 43 42 / 5%), 0 6px 24px rgb(30 43 42 / 7%);
}
/* light is the default; dark only when the visitor picks it */
:root[data-al-theme="dark"] {
  --al-bg: #121614;
  --al-paper: #1a1f1d;
  --al-ink: #ebe6db;
  --al-soft: #b3b5ab;
  --al-faint: #858a83;
  --al-line: #2c332f;
  --al-tint: #1f2522;
  --al-accent: #e28b96;
  --al-accent-ink: #1b1012;
  --al-accent-soft: #3a2226;
  --al-gold: #dcb062;
  --al-gold-soft: #2e2817;
  --al-green: #0c1211;
  --al-shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 8px 28px rgb(0 0 0 / 30%);
}

.al-site {
  background: var(--al-bg);
  color: var(--al-ink);
  font: 16px/1.55 var(--al-sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}
.al-site main { flex: 1; }
.al-site *, .al-site *::before, .al-site *::after { box-sizing: border-box; }
:where(.al-site) :where(a) { color: inherit; }
:where(.al-site) :where(h1, h2, h3, h4) { font-family: var(--al-serif); font-weight: 600; letter-spacing: -0.01em; line-height: 1.18; margin: 0; }
:where(.al-site) :where(p) { margin: 0; }
.al-site img { max-width: 100%; height: auto; }
.al-site :focus-visible { outline: 3px solid var(--al-gold); outline-offset: 2px; border-radius: 6px; }
.al-wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .al-wrap { padding: 0 28px; } }
.al-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.al-skip { position: absolute; left: -9999px; top: 8px; z-index: 50; background: var(--al-ink); color: var(--al-bg); padding: 8px 14px; border-radius: 8px; }
.al-skip:focus { left: 8px; }
.al-muted { color: var(--al-soft); }
.al-small { font-size: 14px; }
.al-eyebrow { font: 600 13px/1.3 var(--al-sans); letter-spacing: .06em; text-transform: uppercase; color: var(--al-accent); }
.al-lead { font: 19px/1.55 var(--al-text); color: var(--al-soft); max-width: 46em; }
.al-note { background: var(--al-gold-soft); border-left: 4px solid var(--al-gold); padding: 10px 14px; border-radius: 8px; margin: 12px 0; }

/* ---------- buttons, chips, links */
.al-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 42px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--al-line);
  background: var(--al-paper); color: var(--al-ink);
  font: 600 15px/1 var(--al-sans); text-decoration: none; cursor: pointer; white-space: nowrap;
}
.al-btn:hover { background: var(--al-tint); }
.al-btn[aria-pressed="true"] { color: var(--al-accent); border-color: var(--al-accent); background: var(--al-accent-soft); }
.al-btn-primary { background: var(--al-accent); color: var(--al-accent-ink); border-color: transparent; }
.al-btn-primary:hover { background: var(--al-accent); filter: brightness(1.08); }
.al-link { background: none; border: 0; padding: 0; font: inherit; color: var(--al-accent); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.al-link[aria-pressed="true"] { text-decoration: none; font-weight: 600; }
.al-more { color: var(--al-accent); font-weight: 600; }
.al-badge { display: inline-block; margin-left: 8px; padding: 2px 8px; border-radius: 999px; background: var(--al-gold-soft); color: var(--al-ink); font: 600 12px/1.5 var(--al-sans); vertical-align: middle; }
.al-chips { list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.al-chips a, .al-chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px;
  background: var(--al-paper); border: 1px solid var(--al-line); text-decoration: none; font-weight: 500;
}
.al-chip { padding: 4px 12px; font-size: 14px; margin: 0 6px 6px 0; }
.al-chips a:hover, .al-chip:hover { border-color: var(--al-gold); }
.al-chips span { color: var(--al-faint); font-size: 13px; }
.al-tick { color: var(--al-accent); font-weight: 700; margin-left: 8px; }

/* ---------- header and footer */
.al-header { background: var(--al-paper); border-bottom: 1px solid var(--al-line); position: sticky; top: 0; z-index: 20; }
.al-header-in { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; }
.al-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 600 19px/1 var(--al-serif); white-space: nowrap; }
.al-brand img { border-radius: 50%; }
.al-nav { display: flex; align-items: center; gap: 4px; }
.al-nav > a { padding: 8px 10px; border-radius: 8px; text-decoration: none; font-weight: 500; color: var(--al-soft); }
.al-nav > a:hover { color: var(--al-ink); background: var(--al-tint); }
.al-nav > a[aria-current="page"] { color: var(--al-accent); }
.al-nav-search { display: inline-flex; }
.al-theme { background: none; border: 0; color: var(--al-soft); padding: 8px; cursor: pointer; border-radius: 8px; display: inline-flex; }
.al-theme:hover { background: var(--al-tint); color: var(--al-ink); }
@media (max-width: 640px) {
  .al-brand span { display: none; }
  .al-nav > a { padding: 8px 7px; font-size: 15px; }
}
.al-footer { background: var(--al-green); color: var(--al-band-ink); margin-top: 56px; padding: 32px 0; }
.al-footer-in { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; }
.al-footer p { color: #c9c3b6; max-width: 32em; margin-top: 6px; font-size: 15px; }
.al-footer nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.al-footer a { color: var(--al-band-ink); }

/* ---------- pages */
.al-page { padding-top: 20px; padding-bottom: 24px; }
.al-page h1 { font-size: clamp(30px, 6vw, 44px); margin: 6px 0 10px; }
.al-page h2 { font-size: 25px; margin: 36px 0 12px; }
.al-page h3 { font-size: 19px; margin: 20px 0 8px; }
.al-crumbs ol { list-style: none; padding: 0; margin: 0 0 8px; display: flex; flex-wrap: wrap; gap: 4px; font-size: 14px; color: var(--al-soft); }
.al-crumbs li + li::before { content: "›"; margin: 0 6px; color: var(--al-faint); }
.al-crumbs a { text-decoration: none; }
.al-crumbs a:hover { text-decoration: underline; }

.al-hero { background: linear-gradient(180deg, var(--al-paper), var(--al-bg)); border-bottom: 1px solid var(--al-line); }
.al-hero-in { display: flex; gap: 24px; align-items: center; padding-top: 32px; padding-bottom: 32px; }
.al-hero h1 { font-size: clamp(30px, 5.5vw, 48px); margin-bottom: 12px; max-width: 18em; }
.al-hero-logo { flex: none; }
@media (max-width: 640px) { .al-hero-in { flex-direction: column; align-items: flex-start; } .al-hero-logo { width: 72px; height: 72px; } }
.al-hero-search { display: flex; gap: 8px; margin-top: 18px; max-width: 560px; }
.al-hero-search input, .al-search input {
  flex: 1; min-width: 0; height: 46px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--al-line);
  background: var(--al-paper); color: var(--al-ink); font: 16px var(--al-sans);
}
.al-search input { width: 100%; border-radius: 12px; margin: 6px 0 10px; }

.al-feature { background: var(--al-paper); border: 1px solid var(--al-line); border-top: 4px solid var(--al-gold); border-radius: var(--al-radius); padding: 20px; box-shadow: var(--al-shadow); margin-top: 8px; }
.al-feature h2 { margin: 6px 0; font-size: 30px; }
.al-feature h2 a { text-decoration: none; }
.al-feature > p { margin-top: 6px; }
.al-quick { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px !important; }

.al-cards { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.al-card { display: flex; flex-direction: column; gap: 6px; height: 100%; padding: 16px; border-radius: var(--al-radius); background: var(--al-paper); border: 1px solid var(--al-line); text-decoration: none; }
.al-card:hover { border-color: var(--al-gold); }
.al-card strong { font: 600 20px/1.2 var(--al-serif); }

.al-list { list-style: none; padding: 0; margin: 0; }
.al-list li { padding: 9px 0; border-bottom: 1px solid var(--al-line); }
.al-list a { font-weight: 500; }
.al-cols { columns: 2 320px; column-gap: 32px; }
.al-cols li { break-inside: avoid; }

.al-decades { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0; }
.al-decades a { padding: 4px 10px; border-radius: 8px; background: var(--al-paper); border: 1px solid var(--al-line); text-decoration: none; font-size: 14px; }
.al-years { width: 100%; border-collapse: collapse; font-size: 14px; display: block; overflow-x: auto; }
.al-years th, .al-years td { text-align: left; vertical-align: top; padding: 8px; border-bottom: 1px solid var(--al-line); }
.al-years td { min-width: 150px; }
.al-years thead th { color: var(--al-soft); font-weight: 600; }
.al-years td a { text-decoration: none; }
.al-years td a:hover { text-decoration: underline; }
.al-key { display: inline-block; margin-left: 6px; padding: 0 6px; border-radius: 6px; font: 600 11px/1.6 var(--al-sans); vertical-align: 1px; text-decoration: none; }
.al-key-text { background: var(--al-accent-soft); color: var(--al-accent); }

.al-lessons { padding-left: 2em; margin: 0; }
.al-lessons li { padding: 10px 0; border-bottom: 1px solid var(--al-line); }
.al-lessons li::marker { color: var(--al-faint); font-weight: 600; }
.al-lessons a { font: 600 18px/1.3 var(--al-serif); text-decoration: none; margin-right: 10px; }
.al-lessons a:hover { text-decoration: underline; }

.al-prevnext { display: flex; justify-content: space-between; gap: 16px; margin-top: 40px; padding-top: 16px; border-top: 1px solid var(--al-line); font-size: 15px; }
.al-prevnext a { color: var(--al-accent); text-decoration: none; max-width: 48%; }
.al-prevnext a[rel="next"], .al-prevnext a:last-child { text-align: right; }

/* ---------- a lesson */
.al-lesson { max-width: 860px; }
.al-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 16px; margin: 16px 0 20px; }
.al-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.al-toolbar-links { display: flex; flex-wrap: wrap; gap: 14px; font-size: 15px; }
.al-toolbar-links a { color: var(--al-accent); }

.al-chapters { list-style: none; padding: 0; margin: 12px 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 4px 16px; }
.al-chapters a { display: flex; gap: 10px; padding: 7px 8px; border-radius: 8px; text-decoration: none; }
.al-chapters a:hover { background: var(--al-tint); }
.al-time { font: 500 13px/1.6 var(--al-sans); color: var(--al-faint); font-variant-numeric: tabular-nums; min-width: 3.2em; }

.al-verses { display: grid; gap: 12px; }
.al-verse { margin: 0; padding: 18px 20px; border-radius: var(--al-radius); background: var(--al-paper); border: 1px solid var(--al-line); border-left: 4px solid var(--al-accent); }
.al-verse[data-known] { border-left-color: var(--al-gold); }
.al-verse blockquote { margin: 0; font: 21px/1.5 var(--al-text); }
.al-verse-hidden { letter-spacing: .25em; color: var(--al-faint); }
.al-verse figcaption { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 16px; margin-top: 10px; font-size: 15px; }
.al-verse cite { font-style: normal; font-weight: 600; }
.al-kjv { font-size: 11px; color: var(--al-faint); letter-spacing: .05em; margin-left: 4px; }
.al-verse-tools { display: flex; flex-wrap: wrap; gap: 14px; }

.al-questions { padding-left: 1.4em; font: 18px/1.55 var(--al-text); }
.al-questions li { margin: 0 0 12px; }

.al-prose { font: 18px/1.65 var(--al-text); }
.al-prose p, .al-prose ul, .al-prose ol, .al-prose blockquote { margin: 0 0 14px; }
.al-prose h3, .al-prose h4 { margin: 24px 0 8px; font-size: 20px; }
.al-prose h4 { font-size: 18px; }
.al-prose blockquote { border-left: 3px solid var(--al-gold); padding-left: 14px; color: var(--al-soft); }
.al-prose li { margin-bottom: 6px; }
.al-prose a { color: var(--al-accent); }
.al-prose hr { border: 0; border-top: 1px solid var(--al-line); margin: 20px 0; }
.al-original { background: var(--al-paper); border: 1px solid var(--al-line); border-radius: var(--al-radius); padding: 18px 20px; }
.al-original ol { padding-left: 1.6em; }
.al-original ol li::marker { color: var(--al-faint); }

.al-fold { border: 1px solid var(--al-line); border-radius: var(--al-radius); background: var(--al-paper); padding: 0 16px; margin: 8px 0; }
.al-fold > summary { cursor: pointer; padding: 14px 0; font-weight: 600; color: var(--al-accent); }
.al-fold[open] > summary { border-bottom: 1px solid var(--al-line); margin-bottom: 14px; }
.al-refs a { color: var(--al-accent); }
.al-refs { line-height: 1.9; }
.al-topics { margin-top: 20px; }

/* ---------- downloads: one plain list, every line with its size */
.al-downloads { margin-top: 36px; padding: 18px 20px; border-radius: var(--al-radius); background: var(--al-tint); border: 1px solid var(--al-line); }
.al-downloads h2 { margin-top: 0; }
.al-downloads h3 { font: 600 13px/1.3 var(--al-sans); letter-spacing: .06em; text-transform: uppercase; color: var(--al-soft); margin: 18px 0 6px; }
.al-downloads .al-fold { margin-top: 14px; }
.al-dl { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.al-dl-row {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 52px;
  padding: 10px 14px; border-radius: 12px; background: var(--al-paper); border: 1px solid var(--al-line); text-decoration: none;
}
.al-dl-row:hover { border-color: var(--al-accent); }
.al-dl-what { display: flex; flex-direction: column; font-weight: 600; }
.al-dl-what small { font-weight: 400; color: var(--al-soft); font-size: 13px; margin-top: 2px; }
.al-dl-size { flex: none; font: 600 14px var(--al-sans); color: var(--al-accent); font-variant-numeric: tabular-nums; }
.al-dl-size::after { content: " ↓"; }

/* ---------- topics, Bible, saved */
.al-topic-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.al-topic-list li { padding: 14px 16px; border-radius: var(--al-radius); background: var(--al-paper); border: 1px solid var(--al-line); }
.al-topic-list a { font: 600 19px var(--al-serif); text-decoration: none; }
.al-topic-list p { color: var(--al-soft); font-size: 15px; margin-top: 4px; }
.al-books { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 6px 16px; }
.al-books li { padding: 6px 0; border-bottom: 1px solid var(--al-line); }
.al-label { display: block; font-weight: 600; margin-bottom: 4px; }
.al-notes { margin-top: 32px; }
.al-notes textarea { width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--al-line); background: var(--al-paper); color: var(--al-ink); font: 17px/1.5 var(--al-text); resize: vertical; }
.al-notes p { margin-top: 6px; }
.al-progress { list-style: none; padding: 0; margin: 0; }
.al-progress li { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding: 10px 0; border-bottom: 1px solid var(--al-line); }
.al-bar { flex: 1 1 120px; height: 8px; border-radius: 99px; background: var(--al-line); overflow: hidden; }
.al-bar span { display: block; height: 100%; background: var(--al-gold); }

/* ---------- the YouTube video: a thumbnail until it is played */
.al-yt { position: relative; aspect-ratio: 16 / 9; border-radius: var(--al-radius); overflow: hidden; background: var(--al-green); }
.al-yt iframe, .al-yt-facade { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.al-yt-facade { padding: 0; cursor: pointer; background: #000; }
.al-yt-facade img { width: 100%; height: 100%; object-fit: cover; display: block; }
.al-yt-play { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); filter: drop-shadow(0 2px 6px rgb(0 0 0 / 40%)); }
.al-yt-facade:hover .al-yt-play path:first-child { fill: #9b2f3f; }
.al-yt-soon { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; padding: 24px; text-align: center;
  color: var(--al-band-ink); background: radial-gradient(circle at 30% 20%, #2b3b39, var(--al-green)); font-size: 17px; }
.al-yt-soon p { max-width: 28em; }
.al-chapter { display: flex; gap: 10px; padding: 7px 8px; }
.al-dl-out .al-dl-size::after { content: " ↗"; }

/* ---------- search */
.al-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.al-filter select { height: 38px; padding: 0 10px; border-radius: 10px; border: 1px solid var(--al-line); background: var(--al-paper); color: var(--al-ink); font: 15px var(--al-sans); max-width: 100%; }
.al-search-h { font-size: 19px !important; margin: 22px 0 4px !important; }
.al-hits li { padding: 12px 0; }
.al-snippet { color: var(--al-soft); }
.al-snippet mark, .al-hits mark { background: var(--al-gold-soft); color: var(--al-ink); padding: 0 2px; border-radius: 3px; }

/* ------------------------------------------------------------------ the catalogue (every period, filters) */
.al-stats { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 14px; color: var(--al-soft); margin: 4px 0 8px; }
.al-stats b { color: var(--al-ink); }
.al-tag { display: inline-block; font: 600 11px/1.6 var(--al-sans); padding: 0 8px; border-radius: 999px; margin-right: 4px; vertical-align: 1px; }
.al-tag.read { background: #e3efe6; color: #24563a; }
.al-tag.coming { background: var(--al-tint); color: var(--al-faint); }
.al-tag.video { background: var(--al-accent-soft); color: var(--al-accent); }
:root[data-al-theme="dark"] .al-tag.read { background: #1f3527; color: #9fd3b0; }
.al-filters { position: sticky; top: 0; z-index: 5; background: var(--al-bg); padding: 10px 0; border-bottom: 1px solid var(--al-line); display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.al-filters input[type=search] { flex: 1 1 240px; min-width: 0; height: 44px; border-radius: 12px; border: 1px solid var(--al-line); padding: 0 14px; font: 16px var(--al-sans); background: var(--al-paper); color: var(--al-ink); }
.al-chip-btn { display: inline-flex; align-items: center; gap: 6px; height: 40px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--al-line); background: var(--al-paper); font: 500 14px var(--al-sans); color: var(--al-ink); cursor: pointer; }
.al-chip-btn[aria-pressed="true"], .al-chip-btn[aria-expanded="true"] { background: var(--al-accent); color: var(--al-accent-ink); border-color: var(--al-accent); }
.al-filters-opt { display: flex; flex-wrap: wrap; gap: 8px; }
.al-filters-opt select { height: 40px; border-radius: 999px; border: 1px solid var(--al-line); background: var(--al-paper); color: var(--al-ink); padding: 0 12px; font: 500 14px var(--al-sans); max-width: 100%; }
.al-filters-more { display: none; }
.al-decades small { display: block; font-size: 11px; color: var(--al-faint); }
.al-year { display: grid; grid-template-columns: 64px 1fr; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--al-line); scroll-margin-top: 70px; }
.al-year > b { font: 600 18px var(--al-serif); color: var(--al-soft); padding-top: 8px; }
.al-periods { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 8px; }
.al-period { display: block; padding: 10px 12px; border-radius: 12px; background: var(--al-paper); border: 1px solid var(--al-line); text-decoration: none; }
.al-period:hover { border-color: var(--al-gold); }
.al-period.wide { grid-column: span 2; }
.al-period .k { display: block; font: 600 11px var(--al-sans); letter-spacing: .06em; text-transform: uppercase; color: var(--al-faint); }
.al-period .t { display: block; font: 600 16px/1.25 var(--al-serif); margin: 3px 0 6px; color: var(--al-ink); }
.al-period:not(.available) .t { color: var(--al-soft); font-weight: 500; }
.al-period.available { border-color: #b9d3c1; box-shadow: inset 3px 0 0 #3d8a5c; }
@media (max-width: 720px) {
  .al-filters-more { display: inline-flex; }
  .al-filters-opt { display: none; width: 100%; }
  .al-filters-opt.open { display: flex; }
  .al-filters-opt select { flex: 1 1 140px; }
  .al-year { grid-template-columns: 1fr; gap: 4px; }
  .al-year > b { padding: 0; font-size: 16px; }
  .al-periods { grid-template-columns: 1fr 1fr; gap: 6px; }
  .al-period { padding: 8px 10px; border-radius: 10px; }
  .al-period .t { font-size: 14px; }
  .al-period.wide { grid-column: 1 / -1; }
}

/* ------------------------------------------------------------------ a period's page */
.al-booklet { background: var(--al-gold-soft); border-left: 4px solid var(--al-gold); border-radius: 8px; padding: 10px 14px; margin: 12px 0 16px; font-size: 15px; }
.al-continue { display: flex; justify-content: space-between; align-items: center; gap: 12px; background: var(--al-paper); border: 1px solid var(--al-line); border-radius: 14px; padding: 12px 16px; margin: 12px 0; }
.al-continue b { font: 600 17px var(--al-serif); }
.al-pdfs, .al-toolbar-end { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 18px; }
.al-btn small { font-weight: 400; opacity: .8; }
.al-contents h3 { font: 600 13px var(--al-sans); letter-spacing: .08em; text-transform: uppercase; color: var(--al-soft); margin: 22px 0 6px; }
.al-contents ol { list-style: none; padding: 0; margin: 0; }
.al-contents li a { display: grid; grid-template-columns: 40px 1fr auto; gap: 10px; padding: 10px 6px; border-bottom: 1px solid var(--al-line); text-decoration: none; }
.al-contents li a:hover .t { color: var(--al-accent); }
.al-contents .n { font: 600 13px var(--al-sans); color: var(--al-accent); padding-top: 3px; }
.al-contents .t { font: 600 17px/1.3 var(--al-serif); }
.al-contents .d { font-size: 13px; color: var(--al-soft); }
.al-contents .tick { display: flex; align-items: center; gap: 6px; }

/* ------------------------------------------------------------------ a lesson: contents beside the text */
.al-lesson-grid { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 36px; max-width: 1180px; }
.al-side { position: sticky; top: 12px; align-self: start; max-height: calc(100vh - 24px); overflow: auto; border-right: 1px solid var(--al-line); padding: 28px 16px 16px 0; font-size: 14px; }
.al-side .kind { font: 600 11px var(--al-sans); letter-spacing: .08em; text-transform: uppercase; color: var(--al-faint); }
.al-side h2 { font: 600 17px/1.25 var(--al-serif); margin: 4px 0 10px; }
.al-side h2 a { text-decoration: none; }
.al-side ol, .al-drawer-sheet ol { list-style: none; padding: 0; margin: 0; }
.al-side li a { display: flex; gap: 8px; padding: 6px 8px; border-radius: 8px; text-decoration: none; color: var(--al-soft); }
.al-side li a:hover { background: var(--al-tint); color: var(--al-ink); }
.al-side li a span, .al-drawer-sheet li a span { width: 24px; flex: none; color: var(--al-faint); font-weight: 600; font-size: 12px; padding-top: 2px; }
.al-side li a[aria-current], .al-drawer-sheet li a[aria-current] { background: var(--al-accent-soft); color: var(--al-accent); font-weight: 600; }
.al-side .qh, .al-drawer-sheet .qh { font: 600 11px var(--al-sans); letter-spacing: .08em; text-transform: uppercase; color: var(--al-faint); margin: 14px 0 4px 8px; }
.al-lesson { max-width: 760px; min-width: 0; }
.al-toc-toggle { position: absolute; opacity: 0; pointer-events: none; }
.al-toc-bar { display: none; }
.al-toc-toggle:focus-visible + .al-toc-bar { outline: 3px solid var(--al-gold); outline-offset: 2px; }
[data-studied-key][data-studied]::after { content: "✓"; color: #3d8a5c; font-weight: 700; margin-left: 6px; }
.al-l-head { margin: 8px 0 4px; }
.al-l-head h1 { font-size: clamp(28px, 5vw, 40px); margin-top: 4px; }
.al-l-part { font: 600 12px var(--al-sans); letter-spacing: .1em; text-transform: uppercase; color: var(--al-faint); margin-bottom: 6px; }
.al-est { font: 500 11px var(--al-sans); letter-spacing: 0; text-transform: none; color: var(--al-faint); border: 1px solid var(--al-line); border-radius: 6px; padding: 1px 6px; margin-left: 8px; vertical-align: 1px; cursor: help; }
.al-side-lights { display: block; background: var(--al-gold-soft); border-left: 4px solid var(--al-gold); padding: 10px 14px; border-radius: 8px; font: 16px/1.5 var(--al-text); margin: 8px 0 18px; }
.al-side-lights > span:first-child { font: 600 11px var(--al-sans); letter-spacing: .08em; text-transform: uppercase; color: var(--al-accent); margin-right: 6px; }
/* the printed number is text (.al-qn), in its own column: a hanging indent, as in the PDF */
.al-l-questions { font: 18px/1.6 var(--al-text); list-style: none; padding: 0; margin: 8px 0 12px; }
.al-l-questions li { display: grid; grid-template-columns: 2.2em minmax(0, 1fr); column-gap: 6px; margin-bottom: 10px; }
.al-qn { font: 600 15px/1.95 var(--al-sans); color: var(--al-accent); text-align: right; font-variant-numeric: tabular-nums; }
.al-l-answer { font-style: italic; color: var(--al-soft); }
.al-l-section { font: 600 13px var(--al-sans) !important; letter-spacing: .08em; text-transform: uppercase; color: var(--al-accent); margin: 28px 0 8px !important; }
.al-l-notes { font: 17px/1.65 var(--al-text); }
.al-l-notes p { margin: 0 0 12px; }
.al-l-notes hr { border: 0; text-align: center; margin: 14px 0; }
.al-l-notes hr::after { content: "* * *"; color: var(--al-gold); letter-spacing: .4em; }
.al-l-fig { margin: 18px 0; }
.al-l-fig img { border: 1px solid var(--al-line); border-radius: 8px; background: #fff; }
.al-l-fig figcaption { font-size: 14px; color: var(--al-soft); margin-top: 6px; }
.al-ref { all: unset; color: var(--al-accent); border-bottom: 1px dotted currentColor; cursor: pointer; white-space: nowrap; }
.al-ref:hover { border-bottom-style: solid; }
.al-ref:focus-visible { outline: 3px solid var(--al-gold); outline-offset: 2px; border-radius: 3px; }
.al-cite { font-style: inherit; }
.al-pop { position: fixed; z-index: 50; width: min(320px, calc(100vw - 16px)); max-height: 60vh; overflow: auto; background: var(--al-paper); color: var(--al-ink); border: 1px solid var(--al-line); border-radius: 12px; box-shadow: var(--al-shadow); padding: 12px 36px 12px 14px; font: 15px/1.5 var(--al-text); }
.al-pop:focus { outline: none; }
.al-pop-ref { font: 600 13px var(--al-sans); color: var(--al-accent); margin-bottom: 6px !important; }
.al-pop-ref span { color: var(--al-faint); font-weight: 500; font-size: 11px; margin-left: 4px; }
.al-pop-text p { margin: 0 0 6px; }
.al-pop sup { font: 600 10px var(--al-sans); color: var(--al-faint); }
.al-pop-x { position: absolute; top: 6px; right: 6px; width: 28px; height: 28px; border: 0; border-radius: 8px; background: transparent; color: var(--al-soft); font-size: 20px; line-height: 1; cursor: pointer; }
.al-pop-x:hover { background: var(--al-tint); }
.al-prevnext a small { display: block; color: var(--al-faint); font-size: 12px; font-weight: 500; }
@media (max-width: 900px) {
  .al-lesson-grid { grid-template-columns: 1fr; gap: 0; }
  .al-side { position: sticky; top: 0; z-index: 6; max-height: none; overflow: visible; border-right: 0; padding: 0; margin: 8px 0; }
  .al-toc-bar { display: flex; justify-content: space-between; align-items: center; gap: 8px; background: var(--al-paper); border: 1px solid var(--al-line); border-radius: 12px; padding: 10px 14px; font: 500 14px var(--al-sans); color: var(--al-soft); box-shadow: var(--al-shadow); cursor: pointer; }
  .al-drawer-btn { color: var(--al-ink); font-weight: 600; white-space: nowrap; }
  .al-toc-body { display: none; position: absolute; left: 0; right: 0; background: var(--al-paper); border: 1px solid var(--al-line); border-top: 0; border-radius: 0 0 12px 12px; padding: 8px 12px 12px; max-height: 65vh; overflow: auto; box-shadow: var(--al-shadow); }
  .al-toc-toggle:checked ~ .al-toc-body { display: block; }
  .al-toc-toggle:checked + .al-toc-bar { border-radius: 12px 12px 0 0; }
  .al-toc-body li a { padding: 9px 6px; border-bottom: 1px solid var(--al-line); font-size: 15px; }
  .al-l-questions { font-size: 17px; }
  .al-l-questions li { grid-template-columns: 1.9em minmax(0, 1fr); }
}