/* LEHS Math launchpad — shared styles
   Design tokens: maroon + gray (Lynn English Bulldogs).
   No framework, no build step. */

:root {
  --maroon: #6E1F2E;
  --maroon-dark: #551825;
  --gray: #9EA2A6;
  --gray-soft: #c9ccce;
  --ink: #1b1b1d;
  --muted: #6b6b70;
  --bg: #faf8f7;
  --card: #ffffff;
  --line: #ece7e6;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 6px 18px rgba(0,0,0,.06);
  --shadow-hover: 0 2px 6px rgba(110,31,46,.12), 0 14px 30px rgba(110,31,46,.14);
  --maxw: 1080px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Header ---------- */
.site-header {
  background: var(--maroon);
  color: #fff;
  border-bottom: 3px solid var(--maroon-dark);
}
.site-header__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 14px;
}
.site-header__logo {
  height: 42px;
  width: auto;
  display: block;
  flex: none;
}
.site-header__title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: .2px;
  margin: 0;
}
.site-header__title .sep { opacity: .5; font-weight: 400; margin: 0 .4em; }
.site-header__title .role { font-weight: 500; opacity: .92; }

/* "Activate Teacher Mode" button (student header) */
.teacher-link {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .82rem;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  padding: 7px 12px;
  border: 1px solid rgba(255,255,255,.5);
  border-radius: 999px;
  white-space: nowrap;
  transition: background .14s ease, border-color .14s ease;
}
.teacher-link:hover { background: rgba(255,255,255,.15); border-color: #fff; }
.teacher-link:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.teacher-link svg { width: 15px; height: 15px; flex: none; }

/* ---------- Layout ---------- */
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px 20px 48px;
}
.lede {
  color: var(--muted);
  margin: 0 0 22px;
  font-size: .98rem;
}

/* ---------- Tile grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.tile {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 18px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  min-height: 134px;
  transition: transform .14s ease, box-shadow .14s ease, border-color .14s ease;
}
a.tile:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--maroon);
}
a.tile:focus-visible {
  outline: 3px solid var(--maroon);
  outline-offset: 2px;
}

.tile__icon {
  width: 38px;
  height: 38px;
  color: var(--maroon);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.tile__icon svg { width: 100%; height: 100%; display: block; }

.tile__label { font-size: 1.06rem; font-weight: 700; margin: 0; }
.tile__desc  { font-size: .87rem; color: var(--muted); margin: 0; }

/* ---------- Coming-soon tiles ---------- */
.tile--soon {
  cursor: default;
  border-style: dashed;
  border-color: var(--gray-soft);
  box-shadow: none;
  background: #fcfbfb;
}
.tile--soon .tile__icon  { color: var(--gray); }
.tile--soon .tile__label { color: var(--muted); }
.badge {
  align-self: flex-start;
  margin-top: auto;
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--gray);
  background: #f1eeed;
  border: 1px solid var(--gray-soft);
  padding: 2px 8px;
  border-radius: 999px;
}

/* ---------- Footer ---------- */
.site-footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px 40px;
  color: var(--muted);
  font-size: .8rem;
}
.site-footer a { color: var(--maroon); }

/* ---------- Simple text pages (404) ---------- */
.prose { max-width: var(--maxw); margin: 0 auto; padding: 36px 20px 60px; }
.prose h2 { margin: 0 0 6px; }