/* All the look lives here. Swap this file for the design pass; the HTML and groups.js stay as they are. */
:root { --bg: #f6f7f9; --card: #fff; --ink: #16202a; --muted: #5d6b78; --line: #dde2e8; --accent: #128c4a; --accent-ink: #fff; }
@media (prefers-color-scheme: dark) { :root { --bg: #0f1419; --card: #18212b; --ink: #e8eef4; --muted: #95a3b1; --line: #2b3846; --accent: #25d366; --accent-ink: #062b14; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.site-head, main, .site-foot { max-width: 640px; margin: 0 auto; padding: 0 16px; }
.site-head { padding-top: 32px; }
.site-name { font-size: 30px; margin: 0; }
.tagline { color: var(--muted); margin: 4px 0 0; }
section { margin-top: 28px; }
h2 { font-size: 20px; margin: 0 0 4px; }
.term { color: var(--muted); margin: 0 0 12px; }
.search-label { display: block; font-size: 14px; color: var(--muted); margin-bottom: 4px; }
.search { width: 100%; font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); color: var(--ink); }
.groups { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 8px; }
.join { display: flex; align-items: center; gap: 10px; padding: 12px 14px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; color: inherit; text-decoration: none; }
.join:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.code { font-weight: 700; white-space: nowrap; }
.note { color: var(--muted); font-size: 14px; flex: 1; min-width: 0; }
.cta { margin-left: auto; background: var(--accent); color: var(--accent-ink); font-weight: 600; font-size: 14px; padding: 6px 14px; border-radius: 999px; }
.empty { color: var(--muted); }
.site-foot { color: var(--muted); font-size: 13px; padding-top: 24px; padding-bottom: 40px; }