/* Veek Teach. Whiteboard colors: navy-black ink, marker blue for building, marker green for activities. */

@font-face { font-family: "Atkinson Next"; src: url("/fonts/atkinson-hyperlegible-next-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Atkinson Next"; src: url("/fonts/atkinson-hyperlegible-next-latin-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "Atkinson Next"; src: url("/fonts/atkinson-hyperlegible-next-latin-700-normal.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Atkinson Next"; src: url("/fonts/atkinson-hyperlegible-next-latin-800-normal.woff2") format("woff2"); font-weight: 800; font-style: normal; font-display: swap; }
@font-face { font-family: "Atkinson Mono"; src: url("/fonts/atkinson-hyperlegible-mono-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }

:root {
  --board: #f6f8fb;
  --paper: #ffffff;
  --ink: #172033;
  --ink-soft: #4a5568;
  --rule: #d8dee7;
  --blue: #1f54c1;
  --blue-wash: #e9effb;
  --green: #12703f;
  --green-ink: #ffffff;
  --red: #b8322a;
  --measure: 40rem;
  --wide: 70rem;
  --sans: "Atkinson Next", "Atkinson Hyperlegible", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Atkinson Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --board: #0f141b;
    --paper: #151b24;
    --ink: #e7ecf3;
    --ink-soft: #a7b2c2;
    --rule: #283241;
    --blue: #8fb0ff;
    --blue-wash: #16213a;
    --green: #5bc48c;
    --green-ink: #0b1a12;
    --red: #ff8b7d;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { font-size: 106.25%; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--board);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

.wrap { width: 100%; max-width: var(--wide); margin: 0 auto; padding: 0 1.25rem; }

a { color: var(--blue); text-decoration-thickness: 0.08em; text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 0.14em; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--blue-wash); color: var(--ink); }

h1, h2, h3 { margin: 0; font-weight: 800; letter-spacing: -0.015em; }
h1 { font-size: clamp(2.2rem, 1.35rem + 3.8vw, 3.65rem); line-height: 1.04; letter-spacing: -0.025em; max-width: 16ch; }
h2 { font-size: 1.6rem; line-height: 1.15; }
h3 { font-size: 1.2rem; line-height: 1.25; font-weight: 700; letter-spacing: -0.005em; }
p { margin: 0; }

.skip { position: absolute; left: -999px; top: 0; background: var(--paper); padding: 0.5rem 0.75rem; }
.skip:focus { left: 1rem; top: 1rem; z-index: 10; }

/* Header and footer */
.site-header { border-bottom: 1px solid var(--rule); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 3.75rem; }
.wordmark { color: var(--ink); font-weight: 800; font-size: 1.2rem; letter-spacing: -0.02em; text-decoration: none; white-space: nowrap; }
.site-header nav { display: flex; gap: 1.1rem; align-items: center; font-size: 0.95rem; }
.site-header nav a { color: var(--ink); text-decoration: none; }
.site-header nav a:hover, .site-header nav a[aria-current="page"] { text-decoration: underline; }
.site-header nav .nav-plugin { color: var(--blue); font-weight: 700; }

.site-footer { border-top: 1px solid var(--rule); margin-top: 5rem; padding: 2rem 0 3rem; color: var(--ink-soft); font-size: 0.9rem; }
.site-footer p { max-width: var(--measure); }
.footer-links { display: flex; flex-wrap: wrap; gap: 0.4rem 1.25rem; margin-top: 0.85rem !important; }

/* Shared pieces */
.lede { font-size: 1.15rem; line-height: 1.5; max-width: 36rem; }
.note { color: var(--ink-soft); font-size: 0.92rem; max-width: var(--measure); }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 2.9rem; padding: 0.6rem 1.15rem;
  border-radius: 8px; border: 2px solid transparent;
  font-weight: 700; text-decoration: none; line-height: 1.2;
}
.button.go { background: var(--green); color: var(--green-ink); }
.button.build { background: var(--blue); color: var(--paper); }
.button.quiet { border-color: var(--rule); color: var(--ink); background: var(--paper); }
.button:hover { filter: brightness(1.08); }
.button.quiet:hover { border-color: var(--ink-soft); filter: none; }

.grade { color: var(--ink-soft); font-size: 0.9rem; font-weight: 700; }

/* The typed request: the one loud thing on the page */
.request {
  margin: 0;
  padding: 1.15rem 1.25rem 1.2rem;
  background: var(--blue-wash);
  border-left: 6px solid var(--blue);
  border-radius: 0 10px 10px 0;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.95rem;
  line-height: 1.62;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  tab-size: 2;
}
.request-tools { display: flex; justify-content: flex-end; margin-bottom: 0.5rem; }
.copy {
  font: inherit; font-size: 0.88rem; font-weight: 700;
  color: var(--blue); background: var(--paper);
  border: 2px solid var(--blue); border-radius: 999px;
  padding: 0.3rem 0.85rem; cursor: pointer;
}
.copy.done { color: var(--green); border-color: var(--green); }

/* Home */
.hero { display: grid; gap: 2.25rem; padding-top: 3rem; padding-bottom: 1rem; }
.hero-text { display: grid; gap: 1.25rem; align-content: start; }
.hero-request { margin: 0; display: grid; gap: 0.6rem; }
.hero-request figcaption { color: var(--ink-soft); font-size: 0.92rem; max-width: 34rem; }

.how { margin-top: 4.5rem; display: grid; gap: 1.75rem; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.5rem; counter-reset: step; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 2.4rem 1fr; column-gap: 0.75rem; row-gap: 0.3rem; }
.steps li::before { content: counter(step); grid-row: span 2; font-size: 2.2rem; font-weight: 800; line-height: 1; color: var(--blue); }
.steps p { max-width: 30rem; }

.player { margin: 0; display: grid; gap: 0.6rem; max-width: 48rem; }
.player-frame { position: relative; aspect-ratio: 16 / 9; background: var(--ink); border-radius: 10px; overflow: hidden; }
.player-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.play {
  position: absolute; inset: 0; width: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.9rem;
  border: 0; background: transparent; color: var(--board); cursor: pointer;
  font: inherit; font-weight: 700; font-size: 1.05rem;
}
.play-mark { width: 4.2rem; height: 4.2rem; border-radius: 50%; background: var(--red); position: relative; }
.play-mark::after {
  content: ""; position: absolute; left: 54%; top: 50%; transform: translate(-50%, -50%);
  border-style: solid; border-width: 0.8rem 0 0.8rem 1.3rem; border-color: transparent transparent transparent #fff;
}
.play:hover .play-mark { filter: brightness(1.1); }
.player figcaption { color: var(--ink-soft); font-size: 0.92rem; max-width: 40rem; }

.activities { margin-top: 4.5rem; }
.activities > h2 { margin-bottom: 0.6rem; }
.section-note { color: var(--ink-soft); max-width: var(--measure); margin-bottom: 1.75rem !important; }
.activity-list { list-style: none; margin: 0; padding: 0; display: grid; }
.activity { border-top: 1px solid var(--rule); padding: 1.35rem 0 1.5rem; display: grid; gap: 0.4rem; align-content: start; }
.activity h3 a { color: var(--ink); text-decoration: none; }
.activity h3 a:hover { text-decoration: underline; }
.activity > p:not(.grade):not(.row-links) { max-width: 34rem; }
.row-links { display: flex; flex-wrap: wrap; gap: 0.4rem 1.4rem; margin-top: 0.35rem !important; font-weight: 700; }
.row-links .open { color: var(--green); }
.row-links .watch { color: var(--ink); }
.row-links .watch::before {
  content: ""; display: inline-block; vertical-align: 0.05em; margin-right: 0.45em;
  border-style: solid; border-width: 0.36em 0 0.36em 0.6em; border-color: transparent transparent transparent var(--red);
}

.faq { margin-top: 4.5rem; }
.faq h2 { margin-bottom: 1.25rem; }
.faq dl { margin: 0; display: grid; gap: 1.35rem; }
.faq dt { font-weight: 700; }
.faq dd { margin: 0.2rem 0 0; max-width: 34rem; }

/* Activity page and plain pages */
.page-head { padding-top: 3rem; display: grid; gap: 1rem; }
.page-head + .activities { margin-top: 2.5rem; }

.activity-page { max-width: calc(var(--measure) + 2.5rem); padding-top: 2rem; display: grid; gap: 1.1rem; }
.activity-page .back { font-size: 0.95rem; }
.activity-page .grade { margin-top: 0.75rem; }
.activity-page h1 { max-width: 20ch; }
.activity-page > h2, .request-section > h2, .make-your-own > h2 { margin-top: 1.75rem; }
.details { margin: 0; padding-left: 1.2rem; display: grid; gap: 0.45rem; }
.request-section { display: grid; gap: 0.9rem; }
.request-section h3 { margin-top: 1rem; }
.replies { margin: 0; padding-left: 1.4rem; display: grid; gap: 1rem; }
.replies li::marker { font-weight: 700; color: var(--ink-soft); }
.make-your-own { display: grid; gap: 0.9rem; border-top: 1px solid var(--rule); margin-top: 1.5rem; padding-top: 0.5rem; }

.prose { max-width: calc(var(--measure) + 2.5rem); padding-top: 3rem; display: grid; gap: 1rem; }
.prose h1 { margin-bottom: 0.5rem; }

/* Wider screens */
@media (min-width: 900px) {
  .wrap { padding: 0 2rem; }
  .hero { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: 3.5rem; padding-top: 4.5rem; align-items: start; }
  .hero-request { margin-top: 0.4rem; }
  .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; }
  .activity-list { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 3rem; }
  .faq dl { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 3rem; row-gap: 1.6rem; }
}

@media (max-width: 420px) {
  .site-header nav { gap: 0.8rem; font-size: 0.9rem; }
  .site-header nav a[href="/about"] { display: none; }
  .request { font-size: 0.9rem; padding: 1rem 1rem 1.05rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

@media print {
  .site-header nav, .copy, .player, .actions { display: none; }
  .request { border-left-width: 3px; background: none; }
}