/* PROOF shared theme - used by all standalone pages */
:root {
  --bg: #FAF9F5;
  --surface: #FFFFFF;
  --text: #0A0B0F;
  --textDim: rgba(10, 11, 15, 0.65);
  --textMuted: rgba(10, 11, 15, 0.45);
  --border: rgba(10, 11, 15, 0.12);
  --accent: #C9FF3D;
  --accentInk: #0A0B0F;
  --accentText: #6B8E1A;
  --positive: #1A7A3E;
  --warn: #B8860B;
  --danger: #B0351C;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Onest', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

html[dir="rtl"], html[dir="rtl"] body {
  font-family: 'IBM Plex Sans Arabic', 'Onest', system-ui, sans-serif;
}

.mono { font-family: 'JetBrains Mono', monospace; }

.grid-bg {
  background-image:
    linear-gradient(rgba(10, 11, 15, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 11, 15, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.proof-pulse {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 0.4 } 50% { opacity: 1 } }

header.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(250, 249, 245, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 32px; max-width: 1400px; margin: 0 auto;
  gap: 16px; flex-wrap: wrap;
}

.logo-link {
  display: flex; align-items: center; gap: 16px;
  text-decoration: none; color: var(--text);
}

.logo-mark {
  width: 32px; height: 32px; background: var(--accent);
  display: flex; align-items: center; justify-content: center;
  color: var(--accentInk);
}

.logo-text { font-family: 'Onest'; font-size: 18px; font-weight: 600; letter-spacing: -0.3px; }
.logo-sub { font-family: 'JetBrains Mono', monospace; font-size: 9px; color: var(--textMuted); letter-spacing: 2px; text-transform: uppercase; }

.header-actions {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end;
}

.btn {
  padding: 8px 14px; background: transparent; border: 1px solid var(--border);
  color: var(--text); cursor: pointer; font-size: 12px; font-weight: 500;
  letter-spacing: 1px; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 8px;
  text-decoration: none;
  font-family: inherit;
}
.btn:hover { background: var(--surface); }

.btn-accent {
  background: var(--accent); border-color: var(--accent); color: var(--accentInk); font-weight: 600;
}

main.page-main {
  max-width: 880px; margin: 0 auto; padding: 64px 32px;
}

@media (max-width: 600px) {
  main.page-main { padding: 40px 20px; }
  .header-inner { padding: 12px 16px; }
}

.page-tag {
  display: inline-block; padding: 3px 8px; background: var(--accent); color: var(--accentInk);
  font-size: 10px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase;
  margin-bottom: 16px; font-family: 'JetBrains Mono', monospace;
}

main.page-main h1 {
  font-family: 'Onest'; font-size: 56px; font-weight: 300; letter-spacing: -2px;
  line-height: 1.05; color: var(--text); margin-bottom: 16px;
}
html[dir="rtl"] main.page-main h1 { font-family: 'IBM Plex Sans Arabic'; font-weight: 500; letter-spacing: -0.5px; }

main.page-main .lede {
  font-size: 17px; color: var(--textDim); line-height: 1.6; margin-bottom: 48px; max-width: 680px;
}

main.page-main h2 {
  font-family: 'Onest'; font-size: 22px; font-weight: 500; color: var(--text);
  margin-top: 40px; margin-bottom: 12px;
}
html[dir="rtl"] main.page-main h2 { font-family: 'IBM Plex Sans Arabic'; font-weight: 600; }

main.page-main h3 {
  font-family: 'Onest'; font-size: 16px; font-weight: 600; color: var(--text);
  margin-top: 24px; margin-bottom: 8px;
}
html[dir="rtl"] main.page-main h3 { font-family: 'IBM Plex Sans Arabic'; }

main.page-main p {
  font-size: 15px; color: var(--textDim); line-height: 1.75; margin-bottom: 16px;
}

main.page-main a {
  color: var(--accentText); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px;
}
main.page-main a:hover { color: var(--text); }

main.page-main ul, main.page-main ol {
  margin: 16px 0 16px 24px; color: var(--textDim); font-size: 15px; line-height: 1.75;
}
html[dir="rtl"] main.page-main ul, html[dir="rtl"] main.page-main ol {
  margin-right: 24px; margin-left: 0;
}

main.page-main li { margin-bottom: 8px; }

main.page-main section { margin-bottom: 28px; }

.guide-section { margin-bottom: 48px; }
.guide-section-head {
  display: flex; align-items: baseline; gap: 12px; margin-bottom: 8px;
}
.guide-section-num {
  font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--textMuted);
}
.guide-section-intro {
  font-size: 14px; color: var(--textDim); line-height: 1.6;
  margin-bottom: 20px; padding-inline-start: 32px;
}
.guide-items { padding-inline-start: 32px; }
.guide-item {
  padding: 16px 0; border-top: 1px solid var(--border);
}
.guide-item:first-child { border-top: none; }
.guide-item h4 {
  font-family: 'Onest'; font-size: 15px; font-weight: 600; color: var(--text);
  margin-bottom: 12px;
}
html[dir="rtl"] .guide-item h4 { font-family: 'IBM Plex Sans Arabic'; }
.guide-row { display: grid; grid-template-columns: 80px 1fr; gap: 12px; margin-bottom: 8px; }
.guide-label {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  color: var(--textMuted); letter-spacing: 1.5px; text-transform: uppercase; padding-top: 2px;
}
.guide-label-fix { color: var(--accentText); }
.guide-row span:last-child {
  font-size: 13px; color: var(--textDim); line-height: 1.6;
}
.guide-row.guide-row-fix span:last-child {
  color: var(--text); font-weight: 500;
}

footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px;
  margin-top: 80px;
}
.footer-inner {
  max-width: 1400px; margin: 0 auto;
}
.footer-top {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px; margin-bottom: 16px;
}
.footer-links { display: flex; gap: 8px; flex-wrap: wrap; }
.footer-link {
  background: transparent; border: none; color: var(--textDim);
  cursor: pointer; font-size: 12px; padding: 4px 8px;
  font-family: inherit; text-decoration: none;
}
.footer-link:hover { color: var(--text); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 8px; padding-top: 16px; border-top: 1px solid var(--border);
}
.footer-copy { font-size: 11px; color: var(--textMuted); }
.footer-built {
  font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--textMuted);
  letter-spacing: 2px; text-transform: uppercase;
}

.back-link {
  display: inline-flex; align-items: center; gap: 8px;
  margin-bottom: 32px; color: var(--textDim); text-decoration: none;
  font-size: 13px; font-family: 'JetBrains Mono', monospace;
  letter-spacing: 1px; text-transform: uppercase;
}
.back-link:hover { color: var(--text); }
html[dir="rtl"] .back-link svg { transform: scaleX(-1); }