/* Shared base for every page the site serves.
 *
 * Reset, bundled faces, the scales transcribed from the app's design system
 * (LandingSpace, LandingText, Dimens) and the page-agnostic furniture: body
 * type, .shell, the skip link and the focus ring.
 *
 * tool/build_site.py prepends this to each page's own sheet, so a page ships
 * one stylesheet and nothing it does not use. It was extracted verbatim out of
 * landing.css when the auth action page needed the same foundation; the colours
 * still come from tokens.css, generated from tokens.dart.
 */

/* ---- reset ------------------------------------------------------------ */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body, h1, h2, h3, p, dl, dd, ol, ul, figure { margin: 0; }
ol, ul { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; }

/* ---- fonts ------------------------------------------------------------ */
/* Subset to Latin + Latin-ext by tool/subset_fonts.sh. Declared per weight so
 * the browser fetches only the faces the page actually renders in — Manrope
 * Regular, for instance, never downloads unless something falls back to it. */

@font-face { font-family: Manrope; font-weight: 400; font-display: swap; src: url(/fonts/Manrope-Regular.woff2) format('woff2'); }
@font-face { font-family: Manrope; font-weight: 500; font-display: swap; src: url(/fonts/Manrope-Medium.woff2) format('woff2'); }
@font-face { font-family: Manrope; font-weight: 600; font-display: swap; src: url(/fonts/Manrope-SemiBold.woff2) format('woff2'); }
@font-face { font-family: Manrope; font-weight: 700; font-display: swap; src: url(/fonts/Manrope-Bold.woff2) format('woff2'); }
@font-face { font-family: Manrope; font-weight: 800; font-display: swap; src: url(/fonts/Manrope-ExtraBold.woff2) format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-weight: 600; font-display: swap; src: url(/fonts/JetBrainsMono-SemiBold.woff2) format('woff2'); }

/* ---- scales ----------------------------------------------------------- */
/* LandingSpace / LandingText / Dimens. The type steps up at each breakpoint
 * together with --shell, so the measure stays put while the page grows. */

:root {
  --s4: 4px;   --s8: 8px;   --s12: 12px; --s16: 16px; --s20: 20px;
  --s24: 24px; --s32: 32px; --s40: 40px; --s48: 48px; --s56: 56px; --s64: 64px;

  --r-chip: 7px;
  --r-control: 10px;
  --r-card: 14px;
  --r-pill: 999px;

  /* Motion, from DESIGN_SYSTEM §7: one duration scale, and deliberately
   * nothing above --d-med. Reduce Motion is handled per page, because the
   * right answer differs — a transition drops to none, an entrance skips its
   * transform and leaves the content already in place. */
  --d-instant: 150ms;
  --d-fast: 180ms;
  --d-med: 300ms;

  --bar-h: 64px;          /* LandingHeader.height */
  --touch: 48px;          /* Dimens.hTouchMin */

  --shell: 1160px;
  --gutter: var(--s20);
  --section: 72px;

  --t-display: 40px;
  --t-heading: 28px;
  --t-lead: 17px;
  --t-tile: 19px;
  --t-tile-body: 15px;
  --t-body: 13.5px;
  --t-caption: 11.5px;
  --t-micro: 10.5px;

  --ease: cubic-bezier(.2, 0, 0, 1);
}

@media (min-width: 721px) {
  :root {
    --gutter: 28px; --section: 96px;
    --t-display: 54px; --t-heading: 36px; --t-lead: 19px; --t-tile: 21px;
  }
}

@media (min-width: 1081px) {
  :root { --gutter: var(--s32); --section: 120px; --t-display: 66px; --t-heading: 42px; }
}

@media (min-width: 1601px) {
  :root {
    --shell: 1320px; --section: 144px;
    --t-display: 78px; --t-heading: 50px; --t-lead: 21px; --t-tile: 23px;
    --t-tile-body: 16.5px;
  }
}

/* ---- page ------------------------------------------------------------- */

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Manrope, system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: var(--t-body);
  font-weight: 600;
  line-height: 1.5;
  scroll-behavior: smooth;
  /* The bar is glass and the page travels under it, so an anchor jump has to
   * stop below it rather than behind it. */
  scroll-padding-top: calc(var(--bar-h) + var(--s24));
}

@media (prefers-reduced-motion: reduce) {
  body { scroll-behavior: auto; }
}

.mono {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-top: var(--section); }
.hero { padding-top: calc(var(--bar-h) + var(--section)); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: var(--s8);
  padding: var(--s8) var(--s16);
  background: var(--surface);
  border-radius: var(--r-control);
  z-index: 10;
}
.skip-link:focus { left: var(--s16); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--r-chip);
}

/* Landing page furniture: type, controls, glass, header, bento, tiles.
 *
 * The foundation this builds on lives in base.css, which the build prepends.
 */

/* ---- type ------------------------------------------------------------- */
/* LandingText.tracking(size) is size * -0.028, which is -0.028em. */

.display {
  font-size: var(--t-display);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.028em;
  text-wrap: balance;
}

.heading {
  font-size: var(--t-heading);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.028em;
  text-wrap: balance;
}

/* 520 is the measure a lead paragraph gets on its own; the hero narrows it to
 * 440 below so the subtitle breaks under the display type rather than running
 * past it. Both are the widths the Flutter original used. */
.lead {
  max-width: 520px;
  margin-top: var(--s24);
  font-size: var(--t-lead);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: -0.2px;
  color: var(--text-dim);
}

.tile-title {
  font-size: var(--t-tile);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.4px;
}

.tile-body {
  margin-top: var(--s4);
  font-size: var(--t-tile-body);
  font-weight: 500;
  color: var(--text-dim);
}

.tile-body.strong { font-weight: 700; color: var(--text); }
.muted { color: var(--text-mute); }

.note {
  margin-top: var(--s16);
  font-size: var(--t-body);
  font-weight: 600;
  color: var(--text-mute);
}

/* The hero's vertical rhythm, which is 24 / 32 / 16 between its four blocks.
 * The reset zeroes every <p> margin, so the button's own step has to be said
 * out loud — without it the CTA sits straight under the subtitle and the whole
 * stack reads as one crowded lump. */
.hero .lead { max-width: 440px; }
.hero-cta { margin-top: var(--s32); }

/* ---- controls --------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s8);
  height: var(--touch);
  padding-inline: var(--s24);
  border-radius: var(--r-control);
  font-size: var(--t-tile-body);
  font-weight: 700;
  letter-spacing: -0.15px;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .12s var(--ease), transform .12s var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn-arrow {
  width: 18px; height: 18px;
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
  transition: transform .12s var(--ease);
}
.btn:hover .btn-arrow { transform: translateX(3px); }

.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-strong); }

.btn-ghost { color: var(--text-dim); }
.btn-ghost:hover { background: var(--surface2); color: var(--text); }

.btn-inverted { background: var(--accent-ink); color: var(--accent-strong); }
.btn-inverted:hover { background: var(--accent-soft); }

.badge {
  display: inline-flex;
  align-items: center;
  height: var(--s20);
  padding-inline: var(--s8);
  border-radius: var(--r-chip);
  font-size: var(--t-micro);
  font-weight: 700;
  letter-spacing: .45px;
  text-transform: uppercase;
  white-space: nowrap;
}
.badge-beta { background: var(--warning-soft); color: var(--warning); }
.badge-soft { background: var(--accent-soft); color: var(--accent-strong); text-transform: none; letter-spacing: 0; }
.badge-onaccent { background: rgb(255 255 255 / .18); color: var(--accent-ink); }

/* ---- glass ------------------------------------------------------------ */
/* The effect the Flutter build could not afford. There it was a BackdropFilter
 * re-rasterising every frame with no cache (flutter#71246), which capped the
 * blur at 12 and still cost frames; here it is composited by the browser, so
 * the sigma is back at the 28 the design asked for and costs nothing. */

[data-glass] {
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(28px) saturate(1.7);
  -webkit-backdrop-filter: blur(28px) saturate(1.7);
}

@media (prefers-contrast: more) {
  [data-glass] {
    background: var(--bg);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

/* ---- header ----------------------------------------------------------- */

.bar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 5;
  height: var(--bar-h);
  border-bottom: 1px solid var(--border2);
}

.bar-inner {
  display: flex;
  align-items: center;
  gap: var(--s16);
  height: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--s8);
  text-decoration: none;
  color: inherit;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 26px; height: 26px;
  border-radius: var(--r-chip);
  background: var(--accent);
  color: var(--accent-ink);
  font-size: var(--t-tile-body);
  font-weight: 800;
}
.brand-name { font-size: var(--t-tile); font-weight: 800; letter-spacing: -0.4px; }

/* The brand and the nav share one flexible cell so the free width collects
 * between the nav and the actions. As two flex children they split it evenly
 * and stranded half of it past the last button. */
.nav {
  display: none;
  flex: 1;
  gap: var(--s24);
  margin-left: var(--s32);
}
.nav a {
  font-size: var(--t-body);
  font-weight: 600;
  color: var(--text-dim);
  text-decoration: none;
}
.nav a:hover { color: var(--text); }

.bar-actions { display: flex; align-items: center; gap: var(--s8); margin-left: auto; }
.bar-actions .btn { height: 38px; padding-inline: var(--s16); }

@media (min-width: 940px) { .nav { display: flex; } }
@media (max-width: 560px) { .bar-actions .btn-ghost { display: none; } }

/* ---- bento ------------------------------------------------------------ */

.bento { display: grid; gap: var(--s12); }
.bento-middle { align-items: center; }
.cell { min-width: 0; }

/* One ratio for every split on the page, so the hero sheet and every panel
 * below it share a left edge.
 *
 * The Flutter original carried two — 4:6 where the left column held only a
 * heading, 5:6 where it also held copy — and the comment defending them said
 * they existed so the page would not read as "40% under one heading and 45%
 * under the next, close enough to look like a mistake rather than a decision".
 * 4:6 is 40% and 5:6 is 45.5%: naming the two values made them deliberate
 * without making them look it. The wider left column wins because it is the
 * one the copy sections actually need; a lone heading is happy in it. */
@media (min-width: 721px) {
  .bento-hero,
  .bento-heading,
  .bento-copy { grid-template-columns: 5fr 6fr; }
  .bento-hero { gap: var(--s32); }
  .bento-heading > .cell:first-child,
  .bento-copy > .cell:first-child { padding-right: var(--s20); }
}

.grid-3, .grid-4 { display: grid; gap: var(--s12); }
@media (min-width: 721px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1081px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

.tile {
  padding: var(--s24);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
}

/* ---- steps ------------------------------------------------------------ */

.tile-steps { padding-block: var(--s8); }
.step { display: flex; gap: var(--s8); padding-block: var(--s20); }
.step + .step { border-top: 1px solid var(--border2); }
.step-n {
  flex: 0 0 var(--s40);
  padding-top: 2px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: var(--t-caption);
  font-weight: 600;
  color: var(--accent);
}

/* ---- run of show ------------------------------------------------------ */

.run-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s12);
  padding-bottom: var(--s16);
  border-bottom: 1px solid var(--border2);
}
.run { margin-top: var(--s8); }
.run li {
  display: flex;
  align-items: baseline;
  gap: var(--s12);
  padding-block: var(--s8);
  font-size: var(--t-tile-body);
  font-weight: 500;
  color: var(--text-dim);
}
.run li + li { border-top: 1px solid var(--border2); }
.run .t { flex: 0 0 auto; font-size: var(--t-caption); color: var(--text-mute); }
.run .p { flex: 1; min-width: 0; }
.run .d { flex: 0 0 auto; font-size: var(--t-caption); color: var(--text-mute); }
.run .major { font-weight: 700; color: var(--text); }
.slack {
  margin-top: var(--s16);
  padding-top: var(--s16);
  border-top: 1px solid var(--border2);
  font-size: var(--t-caption);
  color: var(--accent);
}

/* ---- segmented + comparison ------------------------------------------- */

.segmented {
  position: relative;
  display: inline-grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  padding: var(--s4);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--r-control);
}
.segmented button {
  position: relative;
  z-index: 1;
  padding: var(--s8) var(--s20);
  border-radius: var(--r-chip);
  font-size: var(--t-tile-body);
  font-weight: 700;
  color: var(--text-dim);
  cursor: pointer;
  transition: color .18s var(--ease);
}
.segmented button[aria-selected="true"] { color: var(--text); }
.segmented-thumb {
  position: absolute;
  z-index: 0;
  top: var(--s4);
  bottom: var(--s4);
  left: var(--s4);
  width: calc(50% - var(--s4));
  background: var(--surface);
  border-radius: var(--r-chip);
  box-shadow: 0 1px 2px rgb(0 0 0 / .08);
  transition: transform .28s var(--ease);
}
.segmented[data-mode="team"] .segmented-thumb { transform: translateX(100%); }

.compare { margin-top: var(--s24); }
.compare-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s16);
  padding-block: var(--s16);
}
.compare-row + .compare-row { border-top: 1px solid var(--border2); }
.compare dt {
  font-size: var(--t-caption);
  font-weight: 700;
  letter-spacing: .45px;
  text-transform: uppercase;
  color: var(--text-mute);
}
.compare dd {
  font-size: var(--t-tile);
  font-weight: 700;
  letter-spacing: -0.4px;
  text-align: right;
}
.compare-note {
  margin-top: var(--s16);
  padding-top: var(--s16);
  border-top: 1px solid var(--border2);
  font-size: var(--t-tile-body);
  font-weight: 500;
  color: var(--text-mute);
}

/* The sweep: each row clears its old value before the new one arrives from the
 * side the indicator just travelled towards, a beat after the row above it. */
.compare [data-swap] {
  animation: swap .34s var(--ease) both;
  animation-delay: calc(var(--row) * 60ms);
}
@keyframes swap {
  0%   { opacity: 0; transform: translateX(var(--swap-from, 12px)); }
  100% { opacity: 1; transform: none; }
}

/* ---- downloads -------------------------------------------------------- */

.cta-card {
  padding: var(--s48);
  background: var(--accent);
  border-radius: var(--r-card);
  color: var(--accent-ink);
}
.cta-card .heading { max-width: 640px; }
.cta-card .lead { color: color-mix(in srgb, var(--accent-ink) 86%, transparent); }
.cta-card p + p { margin-top: var(--s32); }
.soon { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s12); font-weight: 600; }
@media (max-width: 720px) { .cta-card { padding: var(--s24); } }

/* ---- footer ----------------------------------------------------------- */

.footer { padding-bottom: var(--s64); }
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s32);
  justify-content: space-between;
  padding-top: var(--s32);
  border-top: 1px solid var(--border2);
}
.footer-label {
  font-size: var(--t-micro);
  font-weight: 700;
  letter-spacing: .45px;
  text-transform: uppercase;
  color: var(--text-mute);
}
.footer-links { margin-top: var(--s8); }
.footer-links a { font-size: var(--t-tile-body); color: var(--text-dim); text-decoration: none; }
.footer-links a:hover { color: var(--text); }
.fine {
  margin-top: var(--s24);
  max-width: 70ch;
  font-size: var(--t-caption);
  font-weight: 500;
  color: var(--text-mute);
}

/* ---- back to top ------------------------------------------------------ */

.to-top {
  position: fixed;
  right: var(--gutter);
  bottom: var(--gutter);
  z-index: 5;
  display: grid;
  place-items: center;
  width: var(--touch);
  height: var(--touch);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-dim);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}
.to-top[hidden] { display: none; }
.to-top.on { opacity: 1; transform: none; }
.to-top svg {
  width: 20px; height: 20px;
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}

/* ---- motion ----------------------------------------------------------- */
/* Everything below the fold mounts at once, so an on-load entrance would play
 * to nobody. Those reveal on scroll; only the hero animates on arrival. */

.enter {
  animation: rise .5s var(--ease) both;
  animation-delay: var(--enter-delay, 0ms);
}
.reveal { opacity: 0; }
.reveal.seen {
  animation: rise .5s var(--ease) both;
  animation-delay: var(--reveal-delay, 0ms);
}
@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  /* Already there, rather than arriving faster. */
  .enter, .reveal, .reveal.seen, .compare [data-swap] { animation: none; opacity: 1; }
  .btn, .btn-arrow, .segmented-thumb, .to-top { transition: none; }
}

/* ---- program sheet ---------------------------------------------------- */
/* Paper. It keeps its own light palette in dark mode for the same reason a
 * photograph of a document does: it is a picture of the printout. */

.sheet {
  aspect-ratio: 612 / 792;
  padding: 5.5%;
  background: #fff;
  border-radius: 4px;
  box-shadow: 0 1px 2px rgb(0 0 0 / .06), 0 12px 32px rgb(0 0 0 / .10);
  color: #1f242d;
  font-size: clamp(6px, .85vw, 10px);
  line-height: 1.5;
  container-type: inline-size;
}
.sheet-head {
  display: flex;
  justify-content: space-between;
  padding-bottom: .6em;
  border-bottom: 1px solid #1f242d;
  font-size: .95em;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.sheet-band {
  margin-top: 1.4em;
  padding: .35em .7em;
  font-size: .85em;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #fff;
}
.sheet-band.treasures { background: #5c5c5c; }
.sheet-band.ministry { background: #b9890f; }
.sheet-band.life { background: #8c1b2e; }
.sheet-row {
  display: flex;
  gap: .8em;
  padding: .42em 0;
  border-bottom: 1px solid #e4e8ec;
}
.sheet-row .sheet-t {
  flex: 0 0 3.4em;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  color: #5d646f;
}
.sheet-row .sheet-p { flex: 1; min-width: 0; }
.sheet-row .sheet-n { flex: 0 0 auto; color: #5d646f; }
.sheet-gap { height: 1.2em; }