/* Shared styles for /links and its sub-pages. */
:root {
  --bg: #fff7ef;
  --blob-a: #ffb38a;
  --blob-b: #8fd3ff;
  --blob-c: #c7a6ff;
  --ink: #1e1b2e;
  --muted: #5d5872;
  --card: rgba(255, 255, 255, 0.72);
  --card-hover: rgba(255, 255, 255, 0.95);
  --line: rgba(30, 27, 46, 0.08);
  --accent: #ff6b3d;
  --tag-bg: #e6f7ec;
  --tag-ink: #1b7a43;
  --shadow: 0 6px 24px rgba(30, 27, 46, 0.08);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14121d;
    --blob-a: #8a3b1f;
    --blob-b: #1f4f75;
    --blob-c: #4b2f80;
    --ink: #f4f1fb;
    --muted: #aaa4bf;
    --card: rgba(36, 33, 50, 0.72);
    --card-hover: rgba(48, 44, 66, 0.95);
    --line: rgba(255, 255, 255, 0.08);
    --accent: #ff8a5c;
    --tag-bg: #183a27;
    --tag-ink: #7fe0a6;
    --shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.45 ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", sans-serif;
  overflow-x: hidden;
}

/* Slow drifting colour blobs behind everything. */
.blobs { position: fixed; inset: 0; z-index: -1; overflow: hidden; filter: blur(70px); opacity: 0.7; }
.blobs span { position: absolute; width: 55vmax; height: 55vmax; border-radius: 50%; animation: drift 24s ease-in-out infinite alternate; }
.blobs span:nth-child(1) { background: var(--blob-a); top: -20vmax; left: -15vmax; }
.blobs span:nth-child(2) { background: var(--blob-b); bottom: -25vmax; right: -20vmax; animation-delay: -8s; }
.blobs span:nth-child(3) { background: var(--blob-c); top: 30vh; left: 40vw; width: 35vmax; height: 35vmax; animation-delay: -16s; }
@keyframes drift { to { transform: translate(6vmax, 4vmax) scale(1.1); } }
@media (prefers-reduced-motion: reduce) { .blobs span { animation: none; } }

main { max-width: 560px; margin: 0 auto; padding: 48px 16px 40px; }

.back { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); text-decoration: none; font-weight: 600; margin-bottom: 20px; }
.back:hover { color: var(--ink); }

header.profile { text-align: center; margin-bottom: 28px; }
.avatar {
  width: 96px; height: 96px; margin: 0 auto 14px; border-radius: 50%;
  display: grid; place-items: center; font-size: 44px;
  background: var(--card); box-shadow: var(--shadow); border: 1px solid var(--line);
}
h1 { margin: 0; font-size: 28px; letter-spacing: -0.02em; }
.lede { margin: 6px auto 0; color: var(--muted); max-width: 420px; }

.links { display: grid; gap: 12px; }
.link {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px; border-radius: 18px;
  background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow);
  color: inherit; text-decoration: none;
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  transition: transform 0.15s ease, background 0.15s ease;
}
.link:hover, .link:focus-visible { background: var(--card-hover); transform: translateY(-2px); }
.link:active { transform: scale(0.98); }
.link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.icon {
  flex: none; width: 48px; height: 48px; border-radius: 12px;
  display: grid; place-items: center; font-size: 26px;
  background: var(--bg); overflow: hidden;
}
.icon img { width: 100%; height: 100%; object-fit: cover; }
.text { flex: 1; min-width: 0; }
.title, .sub { display: block; }
.title { font-weight: 700; }
.sub { color: var(--muted); font-size: 14px; }
.go { flex: none; color: var(--muted); font-size: 20px; }

/* The one link that opens a sub-page gets a little extra colour. */
.link.folder { border: 1.5px solid var(--accent); }
.link.folder .go { color: var(--accent); }

h2 { font-size: 15px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 32px 4px 10px; }
.intro { color: var(--muted); font-size: 14px; margin: -4px 4px 10px; }
.intro a, .note a { color: inherit; }
.tag { display: inline-block; margin-left: 6px; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 700; background: var(--tag-bg); color: var(--tag-ink); vertical-align: 2px; white-space: nowrap; }
.tag.older, .tag.spare { background: var(--line); color: var(--muted); }
.tag.bug { background: #fff0c2; color: #8a5a00; }
@media (prefers-color-scheme: dark) { .tag.bug { background: #4a3a10; color: #ffd76a; } }

/* A set of parts that belong together, e.g. one way to build the Pi. */
.group { margin-bottom: 14px; padding: 12px; border-radius: 22px; border: 1.5px dashed var(--line); }
.group-head { margin: 0 4px 10px; }
.group-head .title { color: var(--accent); }
.group-head .sub { font-size: 13px; }
h3 { font-size: 14px; color: var(--muted); margin: 18px 4px 10px; }

.note {
  margin: 0 0 8px; padding: 12px 14px; border-radius: 14px; font-size: 14px; color: var(--muted);
  background: var(--card); border: 1px solid var(--line);
}

footer { text-align: center; color: var(--muted); font-size: 13px; margin-top: 36px; }
footer a { color: inherit; }
.socials { display: flex; justify-content: center; gap: 18px; margin-bottom: 10px; }
.socials a { font-weight: 600; text-decoration: none; }
.socials a:hover { color: var(--ink); }

/* reCAPTCHA (App Check) runs quietly; its notice lives in the footer instead. */
.grecaptcha-badge { visibility: hidden; }
.recaptcha { font-size: 11px; max-width: 360px; margin: 14px auto 0; }