:root {
  --bg: #0b1426;          /* midnight blue */
  --bg-2: #101d36;
  --card: #14254a;
  --border: #22396b;
  --text: #e6ecf7;
  --muted: #9fb0cf;
  --accent: #5b9bff;
  --accent-2: #8fc1ff;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

/* No rubber-band bounce / stretch at the page ends on phones. */
html, body { overscroll-behavior-y: none; }

body {
  margin: 0;
  background: #060b16;
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
}

a { color: var(--accent-2); }

/* Animated light-lattice wallpaper (bg.js) */
/* Sized to the tallest the viewport gets (mobile toolbars hidden), so showing or
   hiding the address bar never resizes or stretches it. */
#bg {
  position: fixed; top: 0; left: 0; width: 100vw;
  height: 100vh; height: 100lvh;
  z-index: -1; display: block; pointer-events: none;
}

/* Every block of text sits on a dark panel so the lights never run behind it. */
:root {
  --panel: rgba(5, 11, 26, 0.9);
  --card-bg: rgba(9, 18, 40, 0.95);
}
.panel, .hero, section, .doc, footer .wrap {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  backdrop-filter: blur(4px);
}

.wrap { max-width: 960px; margin: 0 auto; padding: 0 16px; }

header.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(6, 11, 22, 0.85);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}
header.nav .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding-top: 14px; padding-bottom: 14px; flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; }
.brand span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 0.95rem; }
nav a:first-child { margin-left: 0; }
nav a:hover { color: var(--text); }

.hero { margin: 40px 0 24px; padding: 56px 32px; }
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; margin: 0 0 16px; }
.hero p { color: var(--muted); font-size: 1.15rem; max-width: 640px; margin: 0 0 28px; }

.btn {
  display: inline-block; padding: 12px 22px; border-radius: 8px;
  background: var(--accent); color: #fff; text-decoration: none; font-weight: 600;
}
.btn:hover { background: #4a86e8; }
.btn-outline { background: transparent; border: 1px solid var(--accent); }
.btn-outline:hover { background: rgba(91, 155, 255, 0.15); }
.actions { display: flex; flex-wrap: wrap; gap: 14px; }

section { margin: 0 0 24px; padding: 36px 32px; }
section h2 { font-size: 1.6rem; margin: 0 0 8px; }
section .lead { color: var(--muted); margin: 0 0 28px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }

.card { background: var(--card-bg); border: 1px solid var(--border); }

.card {
  border-radius: 12px; padding: 22px;
}
.card h3 { margin: 0 0 6px; font-size: 1.15rem; }
.card p { margin: 0 0 12px; color: var(--muted); }
.tag {
  display: inline-block; font-size: 0.78rem; font-weight: 600;
  padding: 3px 10px; border-radius: 999px;
  background: rgba(91, 155, 255, 0.15); color: var(--accent-2);
  margin: 0 6px 6px 0;
}

.empty { color: var(--muted); font-style: italic; }

.note {
  margin: 22px 0 0; padding: 14px 18px;
  border-left: 3px solid var(--accent); border-radius: 8px;
  background: rgba(91, 155, 255, 0.08); color: var(--text);
}
.note strong { color: var(--accent-2); }

dl.facts { display: grid; grid-template-columns: max-content 1fr; gap: 8px 20px; margin: 0; }
dl.facts dt { color: var(--muted); }
dl.facts dd { margin: 0; }

footer { padding: 0 0 32px; color: var(--muted); font-size: 0.9rem; }
footer .wrap { padding: 18px 32px; width: calc(100% - 32px); }
footer a { color: var(--muted); }

.doc { margin: 40px auto 24px; padding: 40px 32px; max-width: 760px; width: calc(100% - 32px); }
.doc h1 { margin-top: 0; }

.refs h2 { font-size: 1.15rem; margin: 28px 0 8px; color: var(--accent-2); }
.refs h2:first-child { margin-top: 8px; }
.refs ul { margin: 0; padding-left: 20px; }
.refs li { margin-bottom: 4px; }
.refs cite { font-style: italic; }
.refs .subtitle { margin: -4px 0 8px; color: var(--muted); font-size: 0.95rem; }
.card .pron { margin: -4px 0 10px; font-size: 0.9rem; color: var(--accent-2); }

@media (max-width: 560px) {
  nav a { margin-left: 12px; }
  .hero { margin-top: 24px; padding: 36px 20px; }
  .actions .btn { flex: 1 1 100%; text-align: center; }
  section, .doc { padding: 28px 20px; }
  footer .wrap { padding: 16px 20px; }
  dl.facts { grid-template-columns: 1fr; gap: 2px; }
  dl.facts dd { margin-bottom: 10px; }
}

/* Preview button on app cards */
.card .btn-preview {
  margin-top: 4px;
  padding: 8px 18px; font: inherit; font-weight: 600; font-size: 0.95rem;
  color: var(--text); cursor: pointer;
}

/* Screenshot viewer (gallery.js) */
dialog.viewer {
  width: 100vw; max-width: 100vw; height: 100dvh; max-height: 100dvh;
  margin: 0; padding: 0; border: 0;
  background: rgba(3, 7, 16, 0.94); color: var(--text);
  display: none; flex-direction: column;
}
dialog.viewer[open] { display: flex; }
dialog.viewer::backdrop { background: rgba(3, 7, 16, 0.6); }
.viewer-top {
  display: flex; align-items: center; gap: 16px;
  padding: 14px 16px; border-bottom: 1px solid var(--border);
}
.viewer-title { font-weight: 700; font-size: 1.1rem; }
.viewer-count { color: var(--muted); font-size: 0.9rem; }
.viewer-close {
  margin-left: auto; width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--card-bg); color: var(--text);
  font-size: 1.6rem; line-height: 1; cursor: pointer;
}
.viewer-stage {
  flex: 1; min-height: 0; position: relative;
  display: flex; align-items: center; justify-content: center; padding: 12px 64px;
}
.viewer-img {
  max-width: 100%; max-height: 100%; object-fit: contain;
  border-radius: 12px; user-select: none; touch-action: pan-y;
}
.viewer-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--card-bg); color: var(--text);
  font-size: 1.8rem; line-height: 1; cursor: pointer;
}
.viewer-nav.prev { left: 12px; }
.viewer-nav.next { right: 12px; }
.viewer-nav[hidden] { display: none; }
.viewer-caption { margin: 0; padding: 4px 16px; text-align: center; color: var(--muted); min-height: 1.6em; }
.viewer-dots { display: flex; justify-content: center; gap: 10px; padding: 8px 16px 20px; }
.viewer-dots[hidden] { display: none; }
.viewer-dots button {
  width: 10px; height: 10px; padding: 0; border-radius: 50%;
  border: 0; background: var(--border); cursor: pointer;
}
.viewer-dots button[aria-current="true"] { background: var(--accent); }

@media (max-width: 560px) {
  .viewer-stage { padding: 8px 12px 60px; }
  .viewer-nav { top: auto; bottom: 8px; transform: none; width: 40px; height: 40px; }
}

/* Long-form pages (privacy, delete account) */
.doc h2 { font-size: 1.3rem; margin: 32px 0 10px; color: var(--accent-2); }
.doc ol, .doc ul { padding-left: 22px; margin: 0 0 14px; }
.doc li { margin-bottom: 8px; }
.doc-end { margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--border); }
.doc-end h2 { margin-top: 0; }