/* Citavo marketing — "Sourced": a precise reference-document identity.
   Signature = the citation marker [n] + a highlighter-marked source.
   Self-contained; no external assets (strict CSP). */

@font-face { font-family: 'PlexMono'; src: url('/fonts/plex-mono-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'PlexMono'; src: url('/fonts/plex-mono-500.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'PlexSans'; src: url('/fonts/plex-sans-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'PlexSans'; src: url('/fonts/plex-sans-600.woff2') format('woff2'); font-weight: 600; font-display: swap; }

:root {
  --paper: #F2F2EC; --card: #FBFBF7; --ink: #16191E; --slate: #565E68;
  --rule: #DEDFD6; --mark: #D6F24E; --mark-deep: #AEC931;
  --mono: 'PlexMono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --sans: 'PlexSans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--mono); font-weight: 500; letter-spacing: -0.02em; line-height: 1.08; }
code { font-family: var(--mono); font-size: 0.88em; background: #E9EAE1; padding: 1px 5px; border-radius: 3px; }

/* Signature marks */
.mark { background: linear-gradient(var(--mark), var(--mark)) no-repeat; background-size: 100% 42%; background-position: 0 82%; padding: 0 2px; }
.cite-mark { font-family: var(--mono); font-size: 0.5em; font-weight: 500; vertical-align: super; color: var(--ink); background: var(--mark); border-radius: 2px; padding: 0 3px; margin-left: 2px; }
.eyebrow { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.02em; color: var(--slate); text-transform: lowercase; }
.eyebrow::before { content: '[ '; color: var(--mark-deep); }
.eyebrow::after { content: ' ]'; color: var(--mark-deep); }

/* Buttons — ink is the workhorse; the highlighter only accents */
.btn { display: inline-block; font-family: var(--mono); font-size: 0.92rem; padding: 12px 22px; border-radius: 2px; border: 1px solid var(--ink); cursor: pointer; transition: transform .08s ease, background .15s ease, color .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: #000; }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-sm { padding: 8px 15px; font-size: 0.82rem; }
.btn-block { display: block; text-align: center; margin-top: 16px; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; justify-content: space-between; padding: 16px 6vw; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--rule); }
.brand { font-family: var(--mono); font-weight: 500; font-size: 1.1rem; letter-spacing: -0.02em; }
.nav-links { display: flex; align-items: center; gap: 26px; font-family: var(--mono); font-size: 0.86rem; }
.nav-links a { color: var(--slate); }
.nav-links a:hover { color: var(--ink); }
.nav-links .btn-primary { color: var(--paper); }

/* Hero */
.hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: 54px; align-items: center; max-width: 1160px; margin: 0 auto; padding: 78px 6vw 44px; }
.hero h1 { font-size: clamp(2.3rem, 5vw, 3.5rem); margin: 16px 0 20px; }
.lede { font-size: 1.1rem; color: var(--slate); max-width: 40ch; }
.hero-cta { display: flex; gap: 12px; margin: 28px 0 12px; flex-wrap: wrap; }
.hero-note { font-family: var(--mono); font-size: 0.78rem; color: var(--slate); }
.hero-privacy { display: flex; align-items: flex-start; gap: 11px; margin-top: 20px; padding: 13px 15px; max-width: 46ch; background: var(--card); border: 1px solid var(--ink); border-radius: 3px; box-shadow: 4px 4px 0 var(--mark); font-size: 0.9rem; line-height: 1.5; }
.hp-badge { flex-shrink: 0; font-family: var(--mono); font-size: 0.62rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink); background: var(--mark); border: 1px solid var(--ink); border-radius: 2px; padding: 3px 8px; white-space: nowrap; }

/* Demo card — styled like a sourced document answer */
.demo-card { background: var(--card); border: 1px solid var(--ink); border-radius: 3px; overflow: hidden; box-shadow: 8px 8px 0 var(--mark); }
.demo-head { padding: 13px 16px; border-bottom: 1px solid var(--rule); font-family: var(--mono); font-size: 0.9rem; font-weight: 500; display: flex; align-items: center; gap: 8px; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--mark-deep); }
.ai-pill { margin-left: auto; font-family: var(--mono); font-size: 0.66rem; color: var(--slate); border: 1px solid var(--rule); border-radius: 2px; padding: 2px 8px; }
.demo-msgs { min-height: 214px; max-height: 300px; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.d-m { max-width: 88%; padding: 10px 13px; font-size: 0.92rem; line-height: 1.55; }
.d-u { align-self: flex-end; background: var(--ink); color: var(--paper); border-radius: 3px; }
.d-a { align-self: flex-start; background: #fff; border: 1px solid var(--rule); border-left: 3px solid var(--mark); border-radius: 2px; }
.d-cite { margin-top: 8px; font-family: var(--mono); font-size: 0.72rem; color: var(--slate); }
.d-typing { color: var(--slate); }
.demo-chips { display: flex; flex-wrap: wrap; gap: 8px; padding: 12px 16px 16px; border-top: 1px solid var(--rule); }
.chip { font-family: var(--mono); font-size: 0.8rem; color: var(--ink); background: transparent; border: 1px solid var(--rule); border-radius: 2px; padding: 7px 12px; cursor: pointer; }
.chip:hover { border-color: var(--ink); background: var(--mark); }
.demo-cap { font-family: var(--mono); text-align: center; font-size: 0.76rem; color: var(--slate); margin-top: 12px; }

/* Steps — bracketed citation markers (content-true: sourcing is the point) */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; max-width: 1080px; margin: 40px auto; padding: 0 6vw; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.step { padding: 26px 22px 26px 0; border-right: 1px solid var(--rule); }
.steps .step:last-child { border-right: none; }
.step-n { font-family: var(--mono); font-weight: 500; font-size: 0.85rem; color: var(--ink); background: var(--mark); padding: 1px 7px; border-radius: 2px; }
.step-n::before { content: '['; } .step-n::after { content: ']'; }
.step h3 { margin: 14px 0 6px; font-size: 1.05rem; }
.step p { margin: 0; color: var(--slate); font-size: 0.95rem; }

/* Features */
.features { max-width: 1080px; margin: 72px auto; padding: 0 6vw; }
.features h2, .pricing h2 { font-size: clamp(1.7rem, 3.5vw, 2.3rem); text-align: center; margin-bottom: 38px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.feature { background: var(--paper); padding: 26px; }
.feature h3 { margin: 0 0 8px; font-size: 0.98rem; }
.feature h3::before { content: '[' counter(feat) ']  ' / ''; counter-increment: feat; color: var(--mark-deep); font-size: 0.85em; }
.feature-grid { counter-reset: feat; }
.feature p { margin: 0; color: var(--slate); font-size: 0.94rem; }

/* Pricing */
.pricing { max-width: 1080px; margin: 72px auto; padding: 0 6vw; }
.price-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; align-items: start; max-width: 760px; margin: 0 auto; }
.price-card { position: relative; background: var(--card); border: 1px solid var(--ink); border-radius: 3px; padding: 26px; }
.price-featured { box-shadow: 8px 8px 0 var(--mark); }
.ribbon { position: absolute; top: -11px; left: 22px; font-family: var(--mono); background: var(--mark); color: var(--ink); font-size: 0.68rem; padding: 3px 10px; border: 1px solid var(--ink); border-radius: 2px; }
.price-card h3 { margin: 0; font-size: 1.05rem; }
.price { font-family: var(--mono); font-size: 2.1rem; font-weight: 500; margin: 10px 0 16px; }
.price span { font-size: 0.9rem; color: var(--slate); }
.price-card ul { list-style: none; padding: 0; margin: 0 0 10px; }
.price-card li { font-size: 0.92rem; color: var(--slate); padding: 6px 0 6px 20px; position: relative; }
.price-card li::before { content: '+'; position: absolute; left: 0; color: var(--mark-deep); font-family: var(--mono); font-weight: 500; }

/* Final CTA + footer */
.final-cta { text-align: center; padding: 78px 6vw; }
.final-cta h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); margin-bottom: 24px; }
.foot { display: flex; justify-content: space-between; align-items: center; padding: 24px 6vw; border-top: 1px solid var(--rule); color: var(--slate); font-family: var(--mono); font-size: 0.82rem; }
.foot-links a:hover { color: var(--ink); }

/* Demos page */
.demo-page { max-width: 900px; margin: 0 auto; padding: 60px 6vw; text-align: center; }
.demo-page h1 { font-size: clamp(2rem, 4.5vw, 3rem); margin: 16px 0 16px; }
.lede.center { max-width: 56ch; margin: 0 auto; text-align: center; }
.demo-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 32px 0 22px; }
.demo-tab { font-family: var(--mono); font-size: 0.82rem; color: var(--slate); background: transparent; border: 1px solid var(--rule); border-radius: 2px; padding: 9px 15px; cursor: pointer; }
.demo-tab:hover { color: var(--ink); border-color: var(--ink); }
.demo-tab.active { color: var(--ink); background: var(--mark); border-color: var(--ink); }
.demo-stage { max-width: 520px; margin: 0 auto; text-align: left; }
.demo-foot-cta { margin-top: 44px; }
.demo-foot-cta p { font-family: var(--mono); color: var(--slate); margin-bottom: 14px; }

/* Capabilities */
.caps { max-width: 1080px; margin: 66px auto 0; padding: 0 6vw; }
.caps h2 { font-size: clamp(1.7rem, 3.5vw, 2.3rem); margin: 12px 0 30px; }
.caps-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.cap { background: var(--paper); padding: 28px; }
.cap-tag { font-family: var(--mono); font-size: 0.68rem; color: var(--ink); background: var(--mark); padding: 2px 9px; border-radius: 2px; }
.cap h3 { margin: 14px 0 8px; font-size: 1.15rem; }
.cap p { margin: 0; color: var(--slate); font-size: 0.96rem; }

/* Privacy — the page's one dark, high-contrast moment */
.privacy { background: var(--ink); color: var(--paper); margin-top: 76px; padding: 74px 6vw; }
.privacy-inner { max-width: 1080px; margin: 0 auto; }
.privacy h2 { color: var(--paper); font-size: clamp(1.7rem, 3.5vw, 2.3rem); margin: 12px 0 36px; }
.eyebrow.inv { color: #98A0AB; }
.eyebrow.inv::before, .eyebrow.inv::after { color: var(--mark); }
.privacy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.priv h3 { font-family: var(--mono); font-weight: 500; color: var(--paper); font-size: 1.02rem; margin: 0 0 9px; }
.priv h3::before { content: '[+] ' / ''; color: var(--mark); }
.priv p { margin: 0; color: #AAB1BB; font-size: 0.94rem; line-height: 1.6; }
.mark-dk { color: var(--ink); background: var(--mark); padding: 0 3px; border-radius: 2px; }

/* Keyboard focus for buttons, links, chips, tabs (mouse stays clean). */
.btn:focus-visible, a:focus-visible, .chip:focus-visible, .demo-tab:focus-visible, button:focus-visible {
  outline: 2px solid var(--ink); outline-offset: 2px; border-radius: 2px;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important; animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important; scroll-behavior: auto !important;
  }
}
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 50px; }
  .steps, .feature-grid, .price-grid, .caps-grid, .privacy-grid { grid-template-columns: 1fr; }
  .step { border-right: none; border-bottom: 1px solid var(--rule); padding-right: 0; }
  .nav-links a:not(.btn) { display: none; }
}