/* Public marketing site (home, features, blog). The app itself is at /app. */
:root {
  --bg: #0f1726; --bg2: #131d30; --card: #1a2540; --border: #2b3a5e;
  --text: #eef2ff; --muted: #9aa6c3; --accent: #4f7cff; --gold: #ffc83d;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f7f8fc; --bg2: #eef1f8; --card: #ffffff; --border: #d9deea; --text: #172033; --muted: #5b6680; --accent: #2f5fe0; --gold: #b07d00; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.65 "Be Vietnam Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
img { max-width: 100%; height: auto; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 720px; }

/* header */
.site-head { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 90%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.site-head .wrap { display: flex; align-items: center; gap: 18px; height: 60px; }
.brand { display: flex; align-items: center; gap: 8px; font: 700 22px "Bricolage Grotesque", sans-serif; color: var(--text); text-decoration: none; letter-spacing: -0.02em; }
.brand svg { width: 18px; height: 30px; }
.brand b { color: var(--gold); }
.site-head nav { display: flex; gap: 16px; margin-left: auto; align-items: center; font-size: 15px; }
.site-head nav a { color: var(--muted); text-decoration: none; }
.site-head nav a:hover { color: var(--text); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 22px; border-radius: 14px; background: var(--accent); color: #fff !important; font-weight: 700; text-decoration: none; border: 1px solid transparent; cursor: pointer; font-family: inherit; font-size: 16px; }
.btn.alt { background: transparent; color: var(--text) !important; border-color: var(--border); }
.btn.small { padding: 8px 14px; font-size: 14px; border-radius: 10px; }
@media (max-width: 640px) { .site-head nav .hide-sm { display: none; } .site-head .wrap { gap: 10px; } }

/* hero */
.hero { padding: 56px 0 40px; background: radial-gradient(90% 70% at 10% 0%, #17254a55 0%, transparent 60%); }
.hero .wrap { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 32px; align-items: center; }
.hero h1 { font: 700 clamp(32px, 5vw, 52px)/1.1 "Bricolage Grotesque", sans-serif; letter-spacing: -0.02em; margin: 0 0 16px; }
.hero h1 em { font-style: normal; color: var(--gold); }
.hero p.lead { font-size: 18px; color: var(--muted); margin: 0 0 24px; }
.hero .qrbox { text-align: center; }
.qr { width: 180px; height: 180px; margin: 0 auto 8px; background: #fff; border-radius: 16px; overflow: hidden; }
.qr svg { display: block; width: 100%; height: 100%; }
.qrbox small { color: var(--muted); }
@media (max-width: 760px) { .hero .wrap { grid-template-columns: 1fr; } .hero .qrbox { display: none; } }

/* sections */
section.block { padding: 56px 0; border-top: 1px solid var(--border); }
section.block h2 { font: 700 clamp(24px, 3.5vw, 32px)/1.2 "Bricolage Grotesque", sans-serif; margin: 0 0 8px; letter-spacing: -0.01em; }
section.block .sub { color: var(--muted); margin: 0 0 28px; max-width: 640px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 900px) { .grid.cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 22px; display: flex; flex-direction: column; align-items: flex-start; }
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card a.more { display: inline-block; margin-top: auto; padding-top: 14px; font-weight: 600; font-size: 14px; }
.tag { display: inline-block; font-size: 12px; font-weight: 700; padding: 2px 8px; border-radius: 99px; background: color-mix(in srgb, var(--accent) 18%, transparent); color: var(--accent); margin-bottom: 8px; }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.steps li { counter-increment: s; background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px 14px 56px; position: relative; }
.steps li::before { content: counter(s); position: absolute; left: 16px; top: 12px; width: 28px; height: 28px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 700; display: grid; place-items: center; }

/* article */
article { padding: 36px 0 24px; }
article h1 { font: 700 clamp(28px, 4.5vw, 40px)/1.15 "Bricolage Grotesque", sans-serif; letter-spacing: -0.02em; margin: 0 0 8px; }
article h2 { font-size: 22px; margin: 36px 0 8px; padding-top: 14px; border-top: 1px solid var(--border); }
article h3 { font-size: 17px; margin: 22px 0 4px; }
article .meta { color: var(--muted); font-size: 14px; margin: 0 0 20px; }
article .answer { background: var(--card); border: 1px solid var(--border); border-left: 4px solid var(--gold); border-radius: 12px; padding: 14px 16px; margin: 16px 0 24px; }
article .post-fig { margin: 20px 0 24px; background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 14px; text-align: center; }
article .post-fig img { display: block; width: 100%; max-width: 680px; margin: 0 auto; border-radius: 10px; }
article .post-fig figcaption { margin-top: 10px; font-size: 13.5px; color: var(--muted); line-height: 1.45; }
article table { border-collapse: collapse; width: 100%; font-size: 15px; margin: 12px 0; }
article th, article td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.crumbs { font-size: 14px; color: var(--muted); margin-bottom: 12px; }
.crumbs a { color: var(--muted); }
.cta-box { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 22px; margin: 36px 0; text-align: center; }
.cta-box h2 { border: 0; margin: 0 0 6px; padding: 0; }
.cta-box p { color: var(--muted); margin: 0 0 14px; }
.share { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 16px 0; color: var(--muted); font-size: 14px; }
.faq-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; align-items: start; }
@media (max-width: 760px) { .faq-grid { grid-template-columns: 1fr; } }
.faq details { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px; margin: 8px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { margin: 8px 0 0; color: var(--muted); }

/* footer */
.site-foot { border-top: 1px solid var(--border); background: var(--bg2); padding: 32px 0 90px; margin-top: 24px; font-size: 14px; color: var(--muted); }
.site-foot .cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 20px; margin-bottom: 20px; }
.site-foot h4 { margin: 0 0 8px; color: var(--text); font-size: 14px; }
.site-foot a { display: block; color: var(--muted); text-decoration: none; margin: 4px 0; }
.site-foot a:hover { color: var(--text); }

/* sticky install bar (phones) */
.install-bar { display: none; }
@media (max-width: 760px) {
  .install-bar { display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; gap: 10px; align-items: center; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: color-mix(in srgb, var(--bg) 94%, transparent); backdrop-filter: blur(10px); border-top: 1px solid var(--border); }
  .install-bar span { flex: 1; font-size: 14px; font-weight: 600; line-height: 1.3; }
}

/* shared app promo + contact note (partials/app-promo.html, partials/contact-note.html) */
.app-promo { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 22px; margin: 36px 0 16px; text-align: center; }
.app-promo h2 { border: 0; margin: 0 0 6px; padding: 0; font-size: 22px; }
.app-promo p { color: var(--muted); margin: 0 0 14px; }
.btn.disabled { opacity: 0.55; cursor: not-allowed; pointer-events: none; }
.contact-note { border-top: 1px solid var(--border); margin: 24px 0 8px; padding-top: 14px; color: var(--muted); font-size: 15px; }
.contact-note p { margin: 0; }

/* app buttons (partials/app-buttons*.html): equal-size 2x2 grid with real gaps */
.app-btns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; max-width: 460px; }
.app-btns .btn { width: 100%; min-height: 52px; padding: 10px 14px; line-height: 1.25; text-align: center; font-size: 15px; margin: 0; }
.app-promo .app-btns { margin: 0 auto; }
.hero .app-btns { margin: 0; }
@media (max-width: 480px) { .app-btns { grid-template-columns: 1fr; } }

/* home layout: one container width, even gaps */
section.block .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 900px) { section.block .steps { grid-template-columns: 1fr; } }
section.block .share { margin-top: 20px; }
.app-btns { gap: 16px; }
.hero .app-btns { max-width: 480px; }
@media (min-width: 900px) { section.block .wrap .app-promo .app-btns { grid-template-columns: repeat(4, minmax(0, 1fr)); max-width: none; } }
section.block .app-promo { margin: 0 0 16px; padding: 32px; }
@media (max-width: 600px) { section.block .app-promo { padding: 20px; } }