/* ClassBoard — public site */
:root {
  --bg: #f4f8fc;
  --panel: #eef4fb;
  --panel-line: #d8e4f1;
  --card: #ffffff;
  --card-head: #f3f7fb;
  --card-line: #d6e2ee;
  --ink: #1d2433;
  --navy: #14225a;
  --muted: #667089;
  --link: #1f5fd6;
  --active: #dde8fb;
  --accent: #1f5fd6;

  --sec1-bg: #dfeafc; --sec1-fg: #1e5fd0;   /* Literature */
  --sec2-bg: #dff3e4; --sec2-fg: #1f7a3a;   /* Writing */
  --sec3-bg: #ece3fb; --sec3-fg: #6b35c9;   /* Grammar */
  --sec4-bg: #fce4ef; --sec4-fg: #b0175a;   /* Vocabulary (raspberry; Homework keeps true red) */

  --hw-bg:   #fde2e2; --hw-fg:   #d42525;
  --ho-bg:   #fdecd8; --ho-fg:   #d96a0b;
  --plain-bg:#eceff4; --plain-fg:#4a5468;

  --serif: Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 14.5px/1.42 var(--sans); }
a { color: var(--link); }
.muted { color: var(--muted); }

.page { max-width: 1180px; margin: 0 auto; padding: 18px 16px 40px; }

/* Header */
.site-head { margin: 0 0 14px 4px; display: flex; align-items: baseline; gap: 6px 18px; flex-wrap: wrap; }
.site-head h1 { font: 700 2.1rem/1.1 var(--serif); margin: 0; color: var(--navy); letter-spacing: -0.01em; }
.site-head h1 a { color: inherit; text-decoration: none; }
.byline { margin: 0; font-size: 1rem; color: #3b4660; }
.byline .sep { margin: 0 9px; color: #9aa3b8; }

/* Layout */
.layout { display: grid; grid-template-columns: 228px minmax(0, 1fr); gap: 18px; align-items: start; }
.sidebar { display: flex; flex-direction: column; gap: 14px; position: sticky; top: 12px; min-width: 0; }
.panel { background: var(--panel); border: 1px solid var(--panel-line); border-radius: 8px; }
.icon { width: 18px; height: 18px; flex: none; }

/* Nav */
.nav { padding: 6px 0; }
.nav a {
  display: flex; align-items: center; gap: 11px;
  padding: 7px 14px; margin: 1px 6px 1px 0;
  color: var(--navy); text-decoration: none; font-size: 1rem;
  border-left: 3px solid transparent; border-radius: 0 6px 6px 0;
}
.nav a:hover { background: #e4edf9; }
.nav a.active { background: var(--active); border-left-color: var(--accent); font-weight: 600; }
.nav .icon { width: 19px; height: 19px; }

/* Coming Up */
.coming-up { padding: 11px 14px 12px; }
.coming-up h2 { display: flex; align-items: center; gap: 9px; margin: 0 0 6px; font: 700 1.15rem/1.2 var(--serif); color: var(--accent); }
.coming-up h2 .icon { width: 19px; height: 19px; }
.coming-up ul { list-style: none; margin: 0; padding: 0; }
.coming-up li { display: flex; gap: 10px; padding: 5px 0; }
.coming-up li .icon { width: 19px; height: 19px; margin-top: 1px; }
.coming-up li > a { text-decoration: none; }
.coming-up li > a:hover .ev-title { text-decoration: underline; }
.coming-up .ev-title { display: block; color: var(--ink); line-height: 1.3; }
.coming-up .ev-date { display: block; color: var(--muted); font-size: .9rem; line-height: 1.3; }
.ev-quiz .icon { color: #9333ea; }
.ev-test .icon { color: #1f5fd6; }
.ev-project_due .icon { color: #dc2626; }
.ev-other .icon { color: #64748b; }
.coming-up .more { display: block; margin-top: 6px; text-align: center; text-decoration: none; font-size: .92rem; }
.coming-up .more:hover { text-decoration: underline; }

/* Entry cards */
.card { background: var(--card); border: 1px solid var(--card-line); border-radius: 8px; margin: 0 0 12px; overflow: hidden; }
.entry { scroll-margin-top: 12px; }
.entry:target { box-shadow: 0 0 0 3px #f5d76e; }
.card.empty { padding: 18px; }
.entry-head {
  margin: 0; padding: 6px 14px;
  background: var(--card-head); border-bottom: 1px solid #e3ebf3;
  font: 700 1.05rem/1.3 var(--serif); color: var(--navy);
}
.card-body { padding: 4px 14px 7px; }

.entry-note { margin: 6px 0 2px; padding: 5px 10px; background: #f6f8fb; border-left: 3px solid #b8c6dc; border-radius: 3px; font-style: italic; color: #3b4660; }

.row { display: grid; grid-template-columns: 100px minmax(0, 1fr); gap: 12px; padding: 5px 0; }
.row + .row { border-top: 1px dashed #edf1f6; }
.tag { display: inline-block; padding: 1px 8px; border-radius: 4px; font-weight: 700; font-size: .8rem; line-height: 1.5; white-space: nowrap; }
.tag-sec1 { background: var(--sec1-bg); color: var(--sec1-fg); }
.tag-sec2 { background: var(--sec2-bg); color: var(--sec2-fg); }
.tag-sec3 { background: var(--sec3-bg); color: var(--sec3-fg); }
.tag-sec4 { background: var(--sec4-bg); color: var(--sec4-fg); }
.tag-homework { background: var(--hw-bg); color: var(--hw-fg); }
.tag-handout  { background: var(--ho-bg); color: var(--ho-fg); }
.tag-plain    { background: var(--plain-bg); color: var(--plain-fg); }

.row-body { padding-top: 0; }
.item + .item { margin-top: 3px; }
.bullets { margin: 0; padding-left: 18px; }
.bullets li { margin: 0; }
.due { margin: 0 0 0 18px; color: var(--muted); font-size: .92rem; }
.files { list-style: none; margin: 1px 0 0; padding: 0; }
.files li { display: flex; align-items: center; gap: 7px; margin: 1px 0; }
.files .icon { color: var(--link); width: 16px; height: 16px; }
.bullets + .files, .due + .files { margin-left: 18px; }

/* Inner pages (Handouts, Quizzes & Tests, About) */
.page-card .page-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 8px 14px; background: var(--card-head); border-bottom: 1px solid #e3ebf3; flex-wrap: wrap;
}
.page-card .page-head h2 { margin: 0; font: 700 1.15rem/1.3 var(--serif); color: var(--navy); }
.page-card .page-head p { margin: 0; font-size: .92rem; }
.page-card > summary { cursor: pointer; list-style: none; }
.page-card > summary::-webkit-details-marker { display: none; }
.page-card.past:not([open]) .chev { transform: rotate(180deg); }
.page-card:not([open]) > summary { border-bottom: 0; }
.page-card .chev { color: var(--navy); transition: transform .15s; }

.tag-sm { font-size: .78rem; padding: 0 7px; font-weight: 600; }
.tag-quiz    { background: #f1e6fd; color: #7e22ce; }
.tag-test    { background: var(--sec1-bg); color: var(--sec1-fg); }
.tag-project { background: var(--hw-bg); color: var(--hw-fg); }
.tag-today   { background: #fff4c2; color: #8a5a00; }
.size { color: var(--muted); font-size: .85rem; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; padding: 10px 14px 0; }
.chips a {
  padding: 2px 11px; border: 1px solid var(--panel-line); border-radius: 999px;
  background: #fff; color: var(--navy); text-decoration: none; font-size: .9rem;
}
.chips a:hover { background: var(--panel); }
.chips a.on { background: var(--navy); border-color: var(--navy); color: #fff; }

.month { margin: 10px 0 2px; font: 700 .98rem/1.3 var(--serif); color: var(--navy); }
.file-list { list-style: none; margin: 0; padding: 0; }
.file-list li {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center;
  gap: 2px 14px; padding: 5px 0; border-bottom: 1px solid #edf1f6;
}
.file-list li:last-child { border-bottom: 0; }
.fl-link { display: flex; align-items: center; gap: 8px; min-width: 0; }
.fl-link .icon { color: var(--link); width: 16px; height: 16px; }
.fl-link a { overflow-wrap: anywhere; }
.fl-meta { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: .88rem; flex-wrap: wrap; }

.event-list { list-style: none; margin: 0; padding: 0; }
.event-list > li { display: flex; gap: 14px; padding: 9px 0; border-bottom: 1px solid #edf1f6; scroll-margin-top: 12px; }
.event-list > li:last-child { border-bottom: 0; }
.event-list > li:target { background: #fffbe6; margin: 0 -14px; padding: 9px 14px; }
.ev-cal {
  flex: none; width: 50px; text-align: center; border: 1px solid var(--panel-line);
  border-radius: 6px; overflow: hidden; background: #fff; align-self: flex-start;
}
.ev-cal span { display: block; }
.ev-mon { background: var(--navy); color: #fff; font-size: .7rem; font-weight: 700; text-transform: uppercase; padding: 1px 0; }
.ev-day { font: 700 1.2rem/1.15 var(--serif); color: var(--navy); }
.ev-dow { font-size: .7rem; color: var(--muted); padding-bottom: 2px; }
.ev-main { min-width: 0; flex: 1; }
.ev-main h3 { margin: 0 0 3px; font-size: 1rem; color: var(--ink); }
.ev-tags { display: flex; gap: 5px; flex-wrap: wrap; }
.ev-des { margin: 5px 0 0; }
.ev-main .files { margin-top: 5px; }
.past .ev-day, .past .ev-main h3 { color: var(--muted); }
.past .ev-mon { background: #8a93a8; }

.prose h3 { font: 700 1.05rem/1.3 var(--serif); color: var(--navy); margin: 16px 0 4px; }
.prose p, .prose ul { margin: 6px 0; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 8px 0 14px; }
.facts dt { font-weight: 600; color: var(--muted); }
.facts dd { margin: 0; }
.sec-tags { display: flex; gap: 5px; flex-wrap: wrap; }

.pager { display: flex; justify-content: space-between; margin-top: 4px; }
.pager a { text-decoration: none; font-weight: 600; }

/* Phone / narrow */
@media (max-width: 820px) {
  body { font-size: 15px; }
  .page { padding-top: 14px; }
  .site-head { margin-left: 0; }
  .site-head h1 { font-size: 1.9rem; }
  .layout { grid-template-columns: 1fr; gap: 12px; }
  .sidebar { position: static; gap: 12px; }
  .nav { display: flex; overflow-x: auto; padding: 5px; gap: 3px; }
  .nav a { margin: 0; padding: 6px 10px; border-left: 0; border-radius: 6px; white-space: nowrap; gap: 7px; }
  .nav a.active { border-left: 0; }
  .row { grid-template-columns: 1fr; gap: 3px; }
  .pg-events .coming-up { display: none; }   /* the page itself is the list */
}