/* Auto Auth Filler: one stylesheet for every page.
 *
 * Each page used to inline its own copy, which drifted almost immediately:
 * privacy.html was left without a canonical link, without any Open Graph tags
 * and still carrying the padlock emoji favicon that the home page had replaced
 * to satisfy Google's branding check. One file cannot drift from itself.
 *
 * The palette is unchanged from the original site. */

:root {
  --base: #eff1f5;
  --mantle: #e6e9ef;
  --surf0: #ccd0da;
  --surf1: #bcc0cc;
  --ovl: #8c8fa1;
  --subtext: #5c5f77;
  --text: #4c4f69;
  --blue: #1e66f5;
  --green: #40a02b;
  --mono: ui-monospace, "Cascadia Code", Consolas, "SF Mono", Menlo, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --measure: 46rem;
  --wide: 64rem;
  --radius: 12px;
}

/* Dark values live once and are applied by two selectors: the system
   preference when the visitor has not chosen, and the explicit choice when
   they have, so the toggle wins in both directions. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --base: #1e1e2e;
    --mantle: #181825;
    --surf0: #313244;
    --surf1: #45475a;
    --ovl: #6c7086;
    --subtext: #a6adc8;
    --text: #cdd6f4;
    --blue: #89b4fa;
    --green: #a6e3a1;
  }
}

:root[data-theme="dark"] {
  --base: #1e1e2e;
  --mantle: #181825;
  --surf0: #313244;
  --surf1: #45475a;
  --ovl: #6c7086;
  --subtext: #a6adc8;
  --text: #cdd6f4;
  --blue: #89b4fa;
  --green: #a6e3a1;
}

*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

/* Someone who has asked their system to reduce motion means it. Every
   transition and the smooth scrolling above are turned off rather than
   shortened, because a shortened animation is still an animation. */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  background: var(--base);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------------------------------------------------------------- typography */

h1, h2, h3 { font-family: var(--mono); letter-spacing: -0.02em; line-height: 1.15; }
h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); font-weight: 700; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.25rem, 3vw, 1.5rem); font-weight: 600; }
h3 { font-size: 1.02rem; font-weight: 600; }
p { text-wrap: pretty; }
.lede { font-size: 1.12rem; color: var(--subtext); }
small { font-size: 0.85rem; }

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

code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--surf0);
  overflow-wrap: anywhere;
  padding: 0.12em 0.4em;
  border-radius: 5px;
}

ul, ol { padding-left: 1.2rem; display: flex; flex-direction: column; gap: 0.45rem; }

/* ------------------------------------------------------------------- skeleton */

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--mantle);
  color: var(--text);
  padding: 0.7rem 1.1rem;
  border: 1px solid var(--surf1);
  border-radius: 0 0 var(--radius) 0;
  z-index: 100;
}
.skip:focus { left: 0; }

.wrap { width: min(100% - 2.5rem, var(--wide)); margin-inline: auto; }
/* .narrow is used two ways: on the same element as .wrap, where .wrap does the
   centring, and on a bare section inside .wrap on the home page. The second
   form needs its own auto margin, or it sits flush left in a wider column. */
.narrow { max-width: var(--measure); margin-inline: auto; }

main { flex: 1; padding-block: clamp(2rem, 5vw, 3.5rem) 4rem; }

section { margin-block-end: clamp(2.5rem, 6vw, 4rem); }
section > * + * { margin-block-start: 0.7rem; }

/* ----------------------------------------------------------------- site nav */

.topbar {
  border-bottom: 1px solid var(--surf0);
  background: color-mix(in srgb, var(--base) 88%, transparent);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
}

.topbar .wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 3.6rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--mono);
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.brand svg { color: var(--blue); flex-shrink: 0; }

.nav { display: flex; gap: 0.2rem; margin-inline-start: auto; flex-wrap: wrap; }
.nav a {
  color: var(--subtext);
  text-decoration: none;
  font-size: 0.92rem;
  padding: 0.35rem 0.7rem;
  border-radius: 8px;
  transition: background 0.15s, color 0.15s;
}
.nav a:hover { color: var(--text); background: var(--mantle); }
/* aria-current is the accessible way to mark the page you are on, so the
   styling hangs off it rather than off a separate class. */
.nav a[aria-current="page"] { color: var(--text); background: var(--mantle); font-weight: 600; }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font: inherit;
  font-size: 0.8rem;
  color: var(--subtext);
  background: transparent;
  border: 1px solid var(--surf0);
  border-radius: 999px;
  padding: 0.32rem 0.7rem;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.theme-toggle:hover { color: var(--text); border-color: var(--surf1); }
.theme-toggle svg { width: 14px; height: 14px; }

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

.hero { text-align: center; padding-block: clamp(1rem, 4vw, 2.5rem) 0; }
.hero .logo { color: var(--blue); margin-bottom: 0.9rem; }
.hero .logo svg { display: block; margin-inline: auto; }
.hero .lede { margin-inline: auto; max-width: 38rem; margin-block-start: 1rem; }

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  justify-content: center;
  margin-block-start: 1.6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.2rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.15s, background 0.15s, border-color 0.15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--blue); color: var(--base); }
.btn-secondary { background: var(--mantle); color: var(--text); border-color: var(--surf0); }
.btn-secondary:hover { border-color: var(--surf1); }
.btn svg { flex-shrink: 0; }

.badges { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; margin-block-start: 1.2rem; }
.badge {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.22rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--surf1);
  color: var(--subtext);
}

/* -------------------------------------------------------------------- pieces */

.card {
  background: var(--mantle);
  border: 1px solid var(--surf0);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem;
}

.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }

.feature h3 { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.35rem; }
.feature h3 svg { color: var(--blue); flex-shrink: 0; }
.feature p { color: var(--subtext); font-size: 0.95rem; }

.stores { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.store {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex: 1 1 15rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--surf0);
  border-radius: var(--radius);
  background: var(--mantle);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
}
.store:hover { border-color: var(--blue); transform: translateY(-1px); }
.store svg { flex-shrink: 0; color: var(--blue); }
.store strong { display: block; font-size: 0.95rem; line-height: 1.25; }
.store small { color: var(--subtext); }

/* A 16:9 box that never overflows its column, so the embed stays responsive
   without the page scrolling sideways on a phone. */
.video {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--surf0);
  background: var(--mantle);
}
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

figure { margin-block: 1.2rem; }
figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--surf0);
}
figcaption { color: var(--subtext); font-size: 0.9rem; margin-block-start: 0.5rem; }

/* Wide content scrolls inside its own box rather than widening the page. */
.scroll-x { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td {
  text-align: left;
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--surf0);
  vertical-align: top;
}
th { font-family: var(--mono); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--subtext); }
tbody tr:last-child td { border-bottom: 0; }

details {
  border: 1px solid var(--surf0);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  background: var(--mantle);
  margin-block-end: 0.7rem;
}
details[open] { border-color: var(--surf1); }
summary { cursor: pointer; font-weight: 600; list-style-position: outside; }
summary::marker { color: var(--ovl); }
details > *:not(summary) { margin-block-start: 0.7rem; }

.note {
  border-inline-start: 3px solid var(--blue);
  padding: 0.2rem 0 0.2rem 1rem;
  color: var(--subtext);
}

.ok { color: var(--green); font-weight: 600; }

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

footer {
  border-top: 1px solid var(--surf0);
  padding-block: 1.6rem 2.2rem;
  font-size: 0.88rem;
  color: var(--ovl);
}
footer .wrap { display: flex; flex-wrap: wrap; gap: 0.5rem 1.4rem; align-items: center; }
footer a { color: var(--subtext); }
footer .spacer { margin-inline-start: auto; }

@media (max-width: 640px) {
  .topbar .wrap { min-height: 3.2rem; padding-block: 0.5rem; }
  .nav { width: 100%; margin-inline-start: 0; justify-content: flex-start; }
  .nav a { padding: 0.3rem 0.55rem; font-size: 0.88rem; }
  footer .spacer { margin-inline-start: 0; }
}