/* OBSIDIAN: black glass, thin light type, no third-party resources of any kind. */

:root {
  --ink: #0a0a0b;
  --ink-2: #111113;
  --line: #26262a;
  --text: #e9e9ea;
  --muted: #9a9aa2;
  --bright: #ffffff;
  --accent: #b9a6ff;
  --danger: #ff8d8d;
  --radius: 14px;
  --wide: 1080px;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.skip {
  position: absolute; left: -9999px;
  background: var(--bright); color: #000; padding: 10px 16px; border-radius: 8px;
}
.skip:focus { left: 16px; top: 16px; z-index: 10; }

a { color: inherit; }

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

.top {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 14px max(16px, calc((100vw - var(--wide)) / 2));
  background: rgba(10, 10, 11, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  text-decoration: none; letter-spacing: 0.34em; font-weight: 300; font-size: 14px;
  color: var(--bright); white-space: nowrap;
}
.mark { width: 20px; height: 20px; color: var(--muted); flex: none; }
.top nav { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; justify-content: flex-end; }
.top nav a { color: var(--muted); text-decoration: none; font-size: 14.5px; }
.top nav a:hover, .top nav a:focus-visible { color: var(--bright); }
.top nav .ghost {
  border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; color: var(--text);
}
.top nav .ghost:hover { border-color: var(--muted); }

/* ---------- hero ---------- */

.hero {
  position: relative;
  padding: clamp(72px, 12vw, 150px) max(16px, calc((100vw - var(--wide)) / 2)) clamp(56px, 8vw, 104px);
  background:
    radial-gradient(120% 90% at 50% -10%, #2a2a31 0%, rgba(20,20,24,0) 62%),
    linear-gradient(180deg, #131317 0%, var(--ink) 100%);
  border-bottom: 1px solid var(--line);
  text-align: center;
}
.badge {
  display: inline-block; margin: 0 0 22px;
  border: 1px solid var(--line); border-radius: 999px;
  padding: 5px 14px; font-size: 12.5px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--muted);
}
.hero h1 {
  margin: 0 0 22px;
  font-size: clamp(34px, 6.4vw, 66px);
  line-height: 1.08; font-weight: 200; letter-spacing: 0.01em; color: var(--bright);
}
.lede {
  max-width: 62ch; margin: 0 auto 30px; color: var(--muted); font-size: clamp(16px, 2vw, 19px);
}
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.button {
  display: inline-block; text-decoration: none;
  background: var(--bright); color: #000;
  border: 1px solid var(--bright); border-radius: 999px;
  padding: 12px 26px; font-size: 15px;
}
.button:hover { background: #dcdcdc; border-color: #dcdcdc; }
.button.quiet { background: transparent; color: var(--text); border-color: var(--line); }
.button.quiet:hover { border-color: var(--muted); background: rgba(255,255,255,0.04); }
.fineprint { color: #71717a; font-size: 13.5px; margin: 26px 0 0; }

/* ---------- sections ---------- */

/* Stop anchor links landing underneath the sticky header */
section[id] { scroll-margin-top: 88px; }

.band { padding: clamp(56px, 9vw, 104px) max(16px, calc((100vw - var(--wide)) / 2)); }
.band.alt { background: var(--ink-2); border-block: 1px solid var(--line); }
.band h2 {
  margin: 0 0 14px; font-size: clamp(25px, 3.6vw, 36px);
  font-weight: 300; letter-spacing: 0.005em; color: var(--bright);
}
.section-lede { margin: 0 0 34px; color: var(--muted); max-width: 66ch; }

/* ---------- cards ---------- */

.cards { display: grid; gap: 16px; }
.cards.three { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.cards.two { grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }
.card {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 22px; background: linear-gradient(180deg, rgba(255,255,255,0.028), rgba(255,255,255,0));
  transition: border-color .18s ease, transform .18s ease;
}
.card:hover { border-color: #3a3a42; transform: translateY(-2px); }
@media (prefers-reduced-motion: reduce) { .card:hover { transform: none; } }
.card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 500; color: var(--bright); }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }

/* ---------- removed-features list ---------- */

.strike {
  list-style: none; margin: 30px 0 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 10px;
}
.strike li {
  border: 1px dashed #34343b; border-radius: 999px;
  padding: 7px 16px; color: #8a8a93; font-size: 14px;
}

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

.steps { list-style: none; counter-reset: s; margin: 0; padding: 0; display: grid; gap: 14px; }
.steps li {
  display: flex; gap: 18px; align-items: flex-start;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px;
  background: rgba(255,255,255,0.015);
}
.steps li > span {
  flex: none; width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid #3a3a42; display: grid; place-items: center;
  font-size: 14px; color: var(--accent);
}
.steps h3 { margin: 2px 0 6px; font-size: 17px; font-weight: 500; color: var(--bright); }
.steps p { margin: 0; color: var(--muted); font-size: 15.5px; }

/* ---------- screenshots ---------- */

.shots { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.shots figure { margin: 0; text-align: center; }
.shots img {
  width: 100%; height: auto; display: block;
  border: 1px solid var(--line); border-radius: 18px; background: #000;
}
.shots figcaption { margin-top: 10px; color: var(--muted); font-size: 13.5px; }

/* ---------- ledger ---------- */

.ledger { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }
.ledger > div { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 22px; }
.ledger h3 { margin: 0 0 12px; font-size: 17px; font-weight: 500; }
.ledger ul { margin: 0; padding-left: 18px; color: var(--muted); }
.ledger li { margin: 7px 0; font-size: 15.5px; }
.cannot { background: linear-gradient(180deg, rgba(185,166,255,0.07), rgba(255,255,255,0)); }
.cannot h3 { color: var(--accent); }
.can { background: linear-gradient(180deg, rgba(255,141,141,0.06), rgba(255,255,255,0)); }
.can h3 { color: var(--danger); }

/* ---------- questions ---------- */

.qa { display: grid; gap: 10px; }
details {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 20px; background: rgba(255,255,255,0.015);
}
details[open] { border-color: #3a3a42; }
summary { cursor: pointer; font-size: 16.5px; color: var(--bright); }
summary::marker { color: var(--muted); }
details p { margin: 12px 0 0; color: var(--muted); font-size: 15.5px; }

/* ---------- closing + footer ---------- */

.closing { text-align: center; }
.closing .section-lede { margin-inline: auto; }
footer {
  border-top: 1px solid var(--line);
  padding: 34px max(16px, calc((100vw - var(--wide)) / 2)) 54px;
  text-align: center; color: var(--muted);
}
footer p { margin: 0 0 6px; font-size: 14px; }

@media (max-width: 640px) {
  .top { flex-direction: column; align-items: flex-start; gap: 10px; }
  .top nav { justify-content: flex-start; gap: 16px; }
  .steps li { flex-direction: column; gap: 10px; }
}

/* ---------- transparency matrix ---------- */

.matrix { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.matrix .item {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px; background: rgba(255,255,255,0.015);
}
.matrix h3 {
  margin: 0 0 7px; font-size: 16.5px; font-weight: 500; color: var(--bright);
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.matrix p { margin: 0; color: var(--muted); font-size: 15px; }
.chip {
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  border-radius: 999px; padding: 3px 10px; border: 1px solid; white-space: nowrap; font-weight: 400;
}
.chip.now { color: #8fe0b0; border-color: #2f5c45; background: rgba(143,224,176,0.08); }
.chip.next { color: #d9c58a; border-color: #5c5330; background: rgba(217,197,138,0.08); }

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

.hero.compact { padding-block: clamp(56px, 8vw, 96px) clamp(36px, 5vw, 56px); }
.code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14.5px; color: var(--text);
  background: #08080a; border: 1px solid var(--line); border-radius: 10px;
  padding: 10px 14px; margin: 10px 0 0; overflow-x: auto;
}
.note {
  margin: 22px 0 0; padding: 16px 18px; color: var(--muted); font-size: 15px;
  border: 1px solid #5c5330; border-radius: var(--radius); background: rgba(217,197,138,0.06);
}

/* Donations. The QR stays dark on light whatever the theme: many wallet scanners cannot read an inverted code. */
.qr {
  display: block; width: 220px; height: 220px; margin: 24px auto 0;
  border-radius: 12px; background: #fff; image-rendering: pixelated;
}
/* A 95 character address has no spaces, so let it wrap rather than scroll, and select it whole in one tap. */
.address {
  word-break: break-all; user-select: all; overflow-x: visible;
  text-align: left; max-width: 640px; margin-inline: auto;
}
/* The warning under the address keeps the address's width but wraps like ordinary text. */
.closing .note { max-width: 640px; margin-inline: auto; text-align: left; }

/* Browser installer. Real buttons need their own font and cursor, and a disabled look that reads as "not yet". */
button.button { font: inherit; font-size: 15px; cursor: pointer; }
button.button:disabled { opacity: 0.35; cursor: not-allowed; }
button.button:disabled:hover { background: var(--bright); border-color: var(--bright); }
button.button.quiet:disabled:hover { background: transparent; border-color: var(--line); }
.installer .button { margin: 14px 10px 0 0; }
.status { margin: 12px 0 0; font-size: 15px; color: var(--muted); }
.status:empty { display: none; }
.status[data-kind="ok"] { color: #8fe0b0; }
.status[data-kind="warn"] { color: #d9c58a; }
.status[data-kind="bad"] { color: var(--danger); }
.hero .status { margin-top: 22px; }
.installer progress {
  display: block; width: 100%; max-width: 480px; height: 6px; margin: 14px 0 0;
  appearance: none; border: 0; border-radius: 999px; background: var(--line); overflow: hidden;
}
.installer progress[hidden] { display: none; }
.installer progress::-webkit-progress-bar { background: var(--line); border-radius: 999px; }
.installer progress::-webkit-progress-value { background: var(--accent); border-radius: 999px; }
.installer progress::-moz-progress-bar { background: var(--accent); border-radius: 999px; }