/* SPDX-License-Identifier: GPL-3.0-or-later */
/* Bands of content, one column on a phone, cards side by side on wider screens.
   Day and night follow the phone. No JavaScript; old phones get the same page, plainer. */

@font-face {
  font-family: "Commissioner";
  src: url("fonts/commissioner.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #ffffff;
  --surface: #fff6f0;
  --card: #ffffff;
  --fg: #1b1512;
  --muted: #6a5d55;
  --line: #efe2d8;
  --accent: #b23c00;
  --ember: #e8590c;
  --on-accent: #ffffff;
  --glow: rgba(232, 89, 12, 0.16);
  --text: "Commissioner", system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Roboto Mono", "Noto Sans Mono", monospace;
  --radius: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --surface: #0d0806;
    --card: #110b08;
    --fg: #f5ede7;
    --muted: #a89b92;
    --line: #2a1f19;
    --accent: #ff8a50;
    --on-accent: #000000;
    --glow: rgba(232, 89, 12, 0.3);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: 5rem; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--text);
  font-size: 1.0625rem;
  line-height: 1.6;
}

.wrap {
  max-width: 68rem;
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}

a { color: var(--accent); text-underline-offset: 0.18em; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 { line-height: 1.15; text-wrap: balance; margin: 0; }
h1 { font-size: 2.3rem; font-size: clamp(2.3rem, 6vw, 3.75rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1.04; }
h2 { font-size: 1.75rem; font-size: clamp(1.75rem, 3.6vw, 2.4rem); font-weight: 700; letter-spacing: -0.02em; }
h3 { font-size: 1.125rem; font-weight: 700; letter-spacing: -0.005em; }
p, ul, ol, dl, pre { margin: 0; }
.muted { color: var(--muted); }
.small { font-size: 0.9375rem; }

/* Header */

.top {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  top: env(safe-area-inset-top, 0px);
  z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; justify-content: space-between; padding-block: 0.75rem; }
.lockup { display: block; color: var(--accent); }
.lockup svg { display: block; height: 2.25rem; width: auto; }
.nav { display: none; }
.nav a { color: var(--fg); text-decoration: none; font-weight: 600; font-size: 0.9375rem; margin: 0 0.9rem; }
.nav a:hover { color: var(--accent); }
.lang {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--fg);
}
.lang:hover { border-color: var(--accent); color: var(--accent); }
.end { display: flex; align-items: center; }
.end .lang { margin-right: 0.5rem; }

/* Menu for phones: works without JavaScript; site.js closes it after a tap. */
.menu { border: 0; padding: 0; background: none; border-radius: 0; }
.menu summary {
  list-style: none;
  cursor: pointer;
  width: 2.125rem;
  height: 2.125rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--fg);
}
.menu summary::-webkit-details-marker { display: none; }
.menu summary svg { width: 1.125rem; height: 1.125rem; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.menu .i-close, .menu[open] .i-open { display: none; }
.menu[open] .i-close { display: block; }
.menu[open] summary { border-color: var(--accent); color: var(--accent); }
.menu-panel {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  padding: 0.25rem 20px 0.75rem;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
.menu-panel a {
  display: block;
  padding-block: 0.9rem;
  border-bottom: 1px solid var(--line);
  color: var(--fg);
  text-decoration: none;
  font-size: 1.125rem;
  font-weight: 600;
}
.menu-panel a:last-child { border-bottom: 0; }
.menu-panel a:hover { color: var(--accent); }

@media (min-width: 52em) {
  .nav { display: block; }
  .menu { display: none; }
}

/* Opening band */

.hero {
  background: radial-gradient(ellipse 70% 80% at 85% 20%, var(--glow), transparent 70%), var(--surface);
  border-bottom: 1px solid var(--line);
}
.hero .wrap { display: grid; grid-gap: 2.5rem; padding-block: 3rem 3.5rem; align-items: center; }
.hero-text { display: grid; grid-gap: 1.25rem; min-width: 0; }
.chips { display: flex; flex-wrap: wrap; list-style: none; padding: 0; margin: 0 -0.25rem; }
.chips li {
  margin: 0.25rem;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: 0.2rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--muted);
}
.lead { color: var(--muted); font-size: 1.1875rem; max-width: 34em; }
.actions { display: flex; flex-wrap: wrap; margin: 0.25rem -0.375rem 0; }
.actions a { margin: 0.375rem; }
@media (min-width: 56em) {
  .hero .wrap { grid-template-columns: 1.1fr 1fr; padding-block: 4.5rem 5rem; }
}

.button {
  display: inline-block;
  background: var(--accent);
  color: var(--on-accent);
  border: 2px solid var(--accent);
  border-radius: 999px;
  padding: 0.7rem 1.4rem;
  font-weight: 700;
  text-decoration: none;
  line-height: 1.3;
}
.button.ghost { background: transparent; color: var(--accent); }

.story { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 1.5rem; display: grid; grid-gap: 1rem; min-width: 0; }
.chain { color: var(--accent); }
.chain svg { display: block; width: 100%; height: auto; }
.chain text { fill: var(--muted); font-family: var(--text); }
.story p { font-size: 0.9875rem; }
.story strong { color: var(--accent); }

@keyframes light { from { opacity: 0.15; } to { opacity: 1; } }
.chain .f2, .chain .f3, .chain .f4 { animation: light 0.5s ease-out both; }
.chain .f2 { animation-delay: 0.5s; }
.chain .f3 { animation-delay: 1s; }
.chain .f4 { animation-delay: 1.5s; }
@media (prefers-reduced-motion: reduce) {
  .chain .f2, .chain .f3, .chain .f4 { animation: none; }
}

/* Bands */

.band { padding-block: 3.5rem; }
.band + .band { border-top: 1px solid var(--line); }
.band.tint { background: var(--surface); }
.band > .wrap { display: grid; grid-gap: 1.75rem; }
.head { display: grid; grid-gap: 0.6rem; max-width: 40em; }
.head p { color: var(--muted); font-size: 1.0625rem; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: grid;
  grid-gap: 0.85rem;
  align-content: start;
  min-width: 0;
}

.grid2, .grid4 { display: grid; grid-gap: 1rem; }
@media (min-width: 46em) {
  .grid2, .grid4 { grid-template-columns: 1fr 1fr; grid-gap: 1.25rem; }
}
@media (min-width: 64em) {
  .grid4 { grid-template-columns: 1fr 1fr 1fr 1fr; }
}
.grid3 { display: grid; grid-gap: 1rem; }
@media (min-width: 52em) {
  .grid3 { grid-template-columns: 1fr 1fr 1fr; grid-gap: 1.25rem; }
}

/* Download */

.howto { padding-left: 1.4rem; display: grid; grid-gap: 0.75rem; }
.howto li { padding-left: 0.25rem; min-width: 0; }
.howto li::marker { color: var(--accent); font-weight: 700; }
.howto .addr { margin-top: 0.5rem; }

.meta { display: flex; flex-wrap: wrap; list-style: none; padding: 0; margin: 0 -0.25rem; }
.meta li { margin: 0.25rem; background: var(--surface); border-radius: 999px; padding: 0.15rem 0.7rem; font-size: 0.875rem; color: var(--muted); }

/* Codes and addresses */

.fp {
  display: block;
  font-family: var(--mono);
  font-size: 0.875rem;
  line-height: 1.5;
  word-break: break-all;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
  -webkit-user-select: all;
  user-select: all;
}
pre {
  font-family: var(--mono);
  font-size: 0.875rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
  overflow-x: auto;
}
code { font-family: var(--mono); font-size: 0.92em; }

/* How it works */

.steps { list-style: none; padding: 0; counter-reset: step; }
.step .pic {
  background: var(--surface);
  border-radius: 12px;
  color: var(--accent);
  padding: 1rem;
  display: flex;
  justify-content: center;
}
.step .pic svg { display: block; width: 100%; max-width: 8rem; height: auto; }
.step .num {
  counter-increment: step;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
}
.step .num::after { content: " " counter(step); }

.facts { list-style: none; padding: 0; }
.facts li { display: grid; grid-template-columns: 2.75rem 1fr; grid-gap: 1rem; align-items: start; }
.facts li > div { min-width: 0; }
.icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 12px;
  background: var(--surface);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}
.icon svg { display: block; width: 1.6rem; height: 1.6rem; }

/* Safety */

.notice {
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  background: var(--card);
}
.notice strong { color: var(--accent); }
.claims { list-style: none; padding: 0; display: grid; grid-gap: 1rem; }
.claims li { padding-left: 1.6rem; position: relative; }
.claims li::before {
  content: "";
  position: absolute;
  left: 0.15rem;
  top: 0.5em;
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--accent);
}
.not .claims li::before { background: transparent; border: 2px solid var(--muted); }
.not { background: var(--surface); }

details { border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.25rem; background: var(--card); }
details > div { display: grid; grid-gap: 1rem; padding-top: 1rem; }
summary { cursor: pointer; color: var(--accent); font-weight: 600; }

/* Donations */

.coins { display: grid; grid-gap: 1rem; max-width: 46rem; }
.coin h3 { display: flex; align-items: center; justify-content: space-between; }
.addr { display: flex; flex-wrap: wrap; align-items: center; margin: -0.25rem; }
.addr .fp { flex: 1 1 16rem; min-width: 0; margin: 0.25rem; }
.copy {
  flex: 0 0 auto;
  margin: 0.25rem;
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--accent);
  background: transparent;
  border: 2px solid var(--accent);
  border-radius: 999px;
  padding: 0.5rem 1.1rem;
  cursor: pointer;
}
.copy.done { background: var(--accent); color: var(--on-accent); }
.copy:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
[hidden] { display: none !important; }
.ticker { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; color: var(--accent); border: 1px solid var(--line); border-radius: 999px; padding: 0.1rem 0.55rem; }

/* Placeholders the owner still has to fill in */

.todo {
  display: inline-block;
  border: 1px dashed var(--ember);
  color: var(--accent);
  border-radius: 6px;
  padding: 0 0.4em;
  font-family: var(--text);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* Footer */

footer { border-top: 1px solid var(--line); padding-block: 2.5rem 3rem; color: var(--muted); font-size: 0.9375rem; }
footer .wrap { display: grid; grid-gap: 1rem; justify-items: start; }
footer .lockup svg { height: 2.75rem; }
footer p { max-width: 36em; }
footer nav a { margin-right: 1.25rem; font-weight: 600; }

/* Small phones */

@media (max-width: 30em) {
  .hero .wrap { padding-block: 2rem 2.5rem; grid-gap: 1.75rem; }
  .band { padding-block: 2.75rem; }
  .card, .story { padding: 1.25rem; }
  .actions a { flex: 1 1 100%; text-align: center; }
  .card .button { display: block; text-align: center; }
  .head p, .lead { font-size: 1.0625rem; }
}