/* Home page: what Wola Wola is, Download and Join. */
:root { --brand: #27306B; --violet: #6D28D9; --blue: #2563EB; --bg: #F4F5F9; --card: #FFFFFF; --text: #1B1E2E; --grey: #636A80; --border: #DCDFEA; }
@media (prefers-color-scheme: dark) {
  :root { --brand: #A9B4FF; --bg: #12131A; --card: #1C1E28; --text: #E8E9F0; --grey: #A0A6B8; --border: #2E3140; }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body { font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--brand); }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 16px; }

.top { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; background: linear-gradient(135deg, var(--violet), var(--blue)); color: #fff; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 700; font-size: 18px; }
.brand img { display: block; width: 34px; height: 34px; border-radius: 10px; background: #fff; padding: 2px; box-sizing: border-box; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18); } /* thin white border round the icon */
.nav-join { color: #fff; text-decoration: none; font-weight: 600; font-size: 14px; padding: 7px 14px; border: 1.5px solid rgba(255, 255, 255, 0.7); border-radius: 999px; }

.hero { text-align: center; padding: 24px 0 36px; background: linear-gradient(180deg, rgba(109, 40, 217, 0.10), transparent); }
.banner { display: block; width: 100%; height: auto; border-radius: 20px; box-shadow: 0 10px 30px rgba(45, 57, 253, 0.25); }
h1 { font-size: clamp(26px, 5vw, 36px); line-height: 1.2; margin: 26px 0 10px; }
.lead { max-width: 600px; margin: 0 auto; font-size: 18px; color: var(--grey); }
.cta { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 24px 0 8px; }
.btn { display: inline-block; padding: 14px 26px; border-radius: 14px; font-weight: 700; text-decoration: none; text-align: center; }
.btn.primary { background: linear-gradient(90deg, var(--violet), var(--blue)); color: #fff; box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3); }
.btn.ghost { background: var(--card); color: var(--brand); border: 1.5px solid var(--border); }
.note { font-size: 14px; color: var(--grey); margin: 6px 0 0; }
.speech { display: inline-flex; align-items: center; gap: 8px; margin-top: 22px; padding: 10px 18px; border-radius: 999px; background: var(--card); border: 1px solid var(--border); font-weight: 600; }

h2 { font-size: 24px; margin: 40px 0 14px; color: var(--brand); }
.steps { padding-left: 22px; }
.steps li { margin: 10px 0; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 24px 18px 22px; text-align: center; box-shadow: 0 6px 20px rgba(45, 57, 253, 0.06); }
.card .ic { display: flex; align-items: center; justify-content: center; width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 16px; color: #fff;
  background: linear-gradient(135deg, var(--violet), var(--blue)); box-shadow: 0 8px 18px rgba(79, 70, 229, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.35); }
.card .ic svg { width: 28px; height: 28px; }
.card b { display: block; font-size: 17px; }
.card p { margin: 6px 0 0; color: var(--grey); font-size: 15px; }

.join-box { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-top: 40px; padding: 4px 22px 22px; background: var(--card); border: 1px solid var(--border); border-radius: 18px; }
.join-box h2 { margin-top: 20px; }
.join-box p { margin: 0; max-width: 560px; color: var(--grey); }

details { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px; margin: 10px 0; }
summary { cursor: pointer; font-weight: 600; }
details p { margin: 8px 0 0; color: var(--grey); }

footer { margin-top: 48px; padding: 20px 0 32px; border-top: 1px solid var(--border); font-size: 14px; color: var(--grey); }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; }