/* FlipMeter marketing/legal shared styles — light theme; brand tokens mirror the app (app.html). */
:root {
  --bg:          #F2F5FC;
  --bg-soft:     #E8EDFA;
  --surface:     #FFFFFF;
  --surface-hi:  #F7F9FE;
  --border:      #C9D2EE;
  --border-soft: #DCE3F6;
  --text:        #0C1224;
  --text-dim:    #3C4D78;
  --text-muted:  #8896BB;
  --accent:      #4F7EF7;
  --accent-hi:   #2B5AE6;
  --accent-dim:  rgba(79,126,247,.08);
  --go:          #0C9260;
  --go-bg:       #EAF8F3;
  --nogo:        #CC2A2A;
  --warn:        #B86010;
  --link:        #2B5AE6;
  --sans:        'Plus Jakarta Sans', -apple-system, system-ui, sans-serif;
  --mono-font:   'IBM Plex Mono', ui-monospace, Menlo, monospace;
  --r:           10px;
  --r-sm:        7px;
  --r-lg:        14px;
  --maxw:        1100px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--link); text-decoration: none; }
a:hover { color: var(--accent-hi); }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--sans); font-weight: 600; font-size: 15px;
  padding: 12px 22px; border-radius: var(--r-sm); border: 1px solid transparent;
  cursor: pointer; transition: background .15s, box-shadow .15s, border-color .15s; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 1px 3px rgba(79,126,247,.35), 0 4px 12px rgba(79,126,247,.18); }
.btn-primary:hover { background: var(--accent-hi); box-shadow: 0 2px 8px rgba(79,126,247,.4); }
.btn-ghost { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-hi); }
.btn-lg { font-size: 16px; padding: 14px 28px; }

/* ---- Nav ---- */
.site-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(242,245,252,.88); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner { display: flex; align-items: center; gap: 28px; height: 64px; }
.nav-logo {
  display: flex; align-items: center; gap: 9px;
  font-size: .9375rem; font-weight: 700;
  color: var(--text); text-decoration: none; letter-spacing: -.02em;
}
.nav-logo-icon {
  width: 28px; height: 28px; border-radius: 7px;
  background: rgba(79,126,247,.1); border: 1px solid rgba(79,126,247,.22);
  overflow: hidden; display: flex; align-items: center; justify-content: center;
}
.nav-logo-icon img { width: 28px; height: 28px; object-fit: cover; }
.nav-links { display: flex; gap: 4px; margin-left: 8px; }
.nav-links a {
  font-size: .84rem; color: var(--text-dim); text-decoration: none;
  padding: 6px 12px; border-radius: var(--r-sm);
  transition: color .12s, background .12s;
}
.nav-links a:hover { color: var(--text); background: rgba(79,126,247,.07); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.nav-right a.text-link { color: var(--text-dim); font-size: 14px; font-weight: 500; }
.nav-right a.text-link:hover { color: var(--text); }
@media (max-width: 640px) { .nav-links { display: none; } }

/* ---- Footer ---- */
.site-footer { border-top: 1px solid var(--border-soft); margin-top: 80px; padding: 32px 0; background: var(--surface); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-logo {
  display: flex; align-items: center; gap: 9px;
  font-size: .875rem; font-weight: 700; color: var(--text-dim); text-decoration: none;
}
.footer-links { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.footer-links a {
  font-size: .78rem; color: var(--text-muted); text-decoration: none;
  padding: 4px 10px; border-radius: 6px; transition: color .12s;
}
.footer-links a:hover { color: var(--text-dim); }
.footer-copy { font-family: var(--mono-font); font-size: .68rem; color: var(--text-muted); }

/* ---- Blog index ---- */
.blog-head { padding: 48px 0 36px; border-bottom: 1px solid var(--border-soft); }
.blog-head .eyebrow { font-family: var(--mono-font); color: var(--accent); font-size: 12px; letter-spacing: .18em; text-transform: uppercase; margin: 0 0 12px; }
.blog-head h1 { font-size: 38px; letter-spacing: -.02em; margin: 0 0 8px; }
.blog-head p { color: var(--text-dim); margin: 0; max-width: 36em; }
.post-list { padding: 24px 0 0; }
.post-item { display: block; padding: 26px 0; border-top: 1px solid var(--border-soft); }
.post-item:first-child { border-top: none; }
.post-meta { display: flex; gap: 12px; align-items: center; font-size: 12px; color: var(--text-muted); font-family: var(--mono-font); margin-bottom: 8px; }
.post-meta .latest { color: var(--accent); letter-spacing: .08em; }
.post-item h2 { font-size: 20px; margin: 0 0 6px; color: var(--text); letter-spacing: -.01em; transition: color .15s; }
.post-item:hover h2 { color: var(--accent-hi); }
.post-item p { color: var(--text-dim); font-size: 15px; margin: 0; }
.post-item.featured h2 { font-size: 1.4rem; }
.post-item.featured {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: 24px;
  margin-bottom: 4px;
}
.post-item.featured:hover { border-color: var(--border); }

/* ---- Article (rendered markdown) ---- */
.article { padding: 44px 0 64px; }
.article-head h1 { font-size: 34px; line-height: 1.15; letter-spacing: -.02em; margin: 0 0 14px; }
.article-head .post-meta { font-size: 13px; }
.prose { max-width: 720px; color: var(--text); font-size: 16.5px; line-height: 1.78; }
.prose h2 { font-size: 23px; margin: 38px 0 12px; letter-spacing: -.01em; }
.prose h3 { font-size: 18px; margin: 28px 0 10px; }
.prose p { color: var(--text-dim); margin: 0 0 18px; }
.prose ul, .prose ol { color: var(--text-dim); padding-left: 22px; margin: 0 0 18px; }
.prose li { margin: 6px 0; }
.prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.prose strong { color: var(--text); }
.prose code { font-family: var(--mono-font); background: var(--surface); border: 1px solid var(--border-soft); border-radius: 4px; padding: 2px 6px; font-size: .9em; color: var(--accent-hi); }
.prose pre { background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--r-sm); padding: 14px 16px; margin: 0 0 18px; overflow-x: auto; font-family: var(--mono-font); font-size: .85em; line-height: 1.6; }
.prose pre code { background: none; border: none; padding: 0; color: var(--text); }
.prose blockquote { border-left: 3px solid var(--accent); margin: 0 0 18px; padding: 4px 0 4px 18px; color: var(--text-dim); }
.prose hr { border: none; border-top: 1px solid var(--border); margin: 32px 0; }
.prose table { width: 100%; border-collapse: collapse; margin: 0 0 18px; font-size: .92em; }
.prose th, .prose td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.prose th { background: var(--surface); color: var(--text); font-weight: 600; }
.prose td { color: var(--text-dim); }
.related { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border-soft); }
.related h3 { font-size: 14px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); margin: 0 0 16px; }

/* ---- Brand page ---- */
.brand { padding: 44px 0 64px; max-width: 780px; }
.brand .eyebrow { font-family: var(--mono-font); color: var(--text-muted); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; margin: 0 0 10px; }
.brand h1 { font-size: 34px; letter-spacing: -.02em; margin: 0 0 10px; }
.brand .tagline { color: var(--text-dim); font-size: 17px; margin: 0 0 24px; }
.badges { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
.stat { border: 1px solid var(--border); border-radius: var(--r-sm); padding: 12px 16px; background: var(--surface); }
.stat .k { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); margin-bottom: 4px; }
.stat .v { font-weight: 700; font-size: 15px; font-family: var(--mono-font); }
.v.good { color: var(--go); }
.v.bad { color: var(--nogo); }
.v.mid { color: var(--warn); }
.brand h2 { font-size: 20px; margin: 30px 0 10px; }
.brand p { color: var(--text-dim); }
.alt-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.chip { border: 1px solid var(--border); border-radius: 20px; padding: 7px 16px; font-size: 14px; color: var(--text-dim); }
a.chip:hover { border-color: var(--accent); color: var(--accent-hi); }
.brand-cta { margin-top: 36px; background: var(--surface); border: 1px solid var(--border-soft); border-left: 3px solid var(--accent); border-radius: var(--r); padding: 24px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.brand-cta p { margin: 0; flex: 1; min-width: 240px; }

/* ---- Legal pages ---- */
.legal { padding: 48px 0 64px; }
.legal h1 { font-size: 32px; letter-spacing: -.02em; margin: 0 0 6px; }
.legal .updated { font-family: var(--mono-font); color: var(--text-muted); font-size: 13px; margin-bottom: 32px; padding-bottom: 18px; border-bottom: 1px solid var(--border-soft); }
.legal h2 { font-size: 1rem; font-weight: 700; margin: 28px 0 10px; }
.legal p, .legal li { color: var(--text-dim); line-height: 1.75; }
.legal a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }