/* ============================================
   FlowBrains LeadEngine — Brand Stylesheet
   Palette sourced from FBL_Logo.png
   ============================================ */

:root {
  /* Brand gradient — matches the logo mark exactly */
  --brand-teal: #1B96BD;
  --brand-blue: #105AA5;
  --brand-navy: #1C3960;

  /* Base */
  --paper: #FAFAFA;
  --paper-alt: #F2F4F6;
  --ink: #1A1D23;
  --muted: #5C6470;
  --hairline: #E4E7EB;
  --panel: #FFFFFF;

  /* Sparing urgency accent — not in the mark, used only at leak/CTA points */
  --signal: #E8623C;
  --signal-dark: #C94E2C;

  /* Type */
  --font-display: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --radius: 6px;
  --max-width: 1140px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--brand-navy);
  line-height: 1.15;
  margin: 0 0 0.5em 0;
  font-weight: 800;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { font-size: 1.3rem; }

p { margin: 0 0 1em 0; }

a {
  color: var(--brand-blue);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

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

/* ===== Header ===== */
.site-header {
  background: var(--panel);
  border-bottom: 1px solid var(--hairline);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo-link { display: flex; align-items: center; gap: 10px; }
.logo-link img { height: 36px; width: auto; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  color: var(--ink);
  font-weight: 600;
  font-size: 0.95rem;
}
.main-nav a:hover { color: var(--brand-blue); text-decoration: none; }
.main-nav a.active { color: var(--brand-blue); }

.nav-cta {
  background: linear-gradient(135deg, var(--brand-teal), var(--brand-blue));
  color: #fff !important;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 700;
}
.nav-cta:hover { text-decoration: none; opacity: 0.92; }

/* mobile nav toggle */
.nav-toggle { display: none; }

@media (max-width: 760px) {
  .main-nav {
    position: fixed;
    top: 76px; left: 0; right: 0;
    background: var(--panel);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--hairline);
    gap: 16px;
    display: none;
  }
  .main-nav.open { display: flex; }
  .nav-toggle {
    display: block;
    background: none;
    border: none;
    font-size: 1.6rem;
    color: var(--brand-navy);
    cursor: pointer;
  }
  .nav-cta { width: 100%; text-align: center; }
}

/* ===== Hero ===== */
.hero {
  padding: 72px 0 56px;
  background: linear-gradient(180deg, #fff 0%, var(--paper-alt) 100%);
}

.hero .eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  color: var(--brand-blue);
  font-weight: 700;
  margin-bottom: 14px;
  display: inline-block;
}

.hero p.lede {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 640px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.98rem;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--signal);
  color: #fff;
}
.btn-primary:hover { background: var(--signal-dark); text-decoration: none; }

.btn-secondary {
  background: transparent;
  color: var(--brand-navy);
  border: 1.5px solid var(--brand-navy);
}
.btn-secondary:hover { background: var(--brand-navy); color: #fff; text-decoration: none; }

/* ===== Sections / generic content ===== */
.section { padding: 64px 0; }
.section-alt { background: var(--paper-alt); }

.card {
  background: var(--panel);
  border: 1px solid var(--hairline);
  border-radius: 10px;
  padding: 28px;
}

/* ===== Legal / policy page content ===== */
.policy-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}

.policy-content h1 { margin-bottom: 6px; }
.policy-content .updated {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 36px;
  display: block;
}
.policy-content h2 {
  font-size: 1.25rem;
  margin-top: 2em;
  border-top: 1px solid var(--hairline);
  padding-top: 1.2em;
}
.policy-content ul { padding-left: 1.3em; }
.policy-content li { margin-bottom: 0.5em; }
.policy-content strong { color: var(--brand-navy); }

/* ===== Contact details block ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 32px;
}
@media (max-width: 700px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-item .label {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--brand-blue);
  font-weight: 700;
  display: block;
  margin-bottom: 6px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--brand-navy);
  color: #C9D3E0;
  padding: 48px 0 28px;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

.site-footer h4 {
  color: #fff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.site-footer a {
  color: #C9D3E0;
  display: block;
  margin-bottom: 8px;
  font-size: 0.92rem;
}
.site-footer a:hover { color: #fff; }

.site-footer .footer-logo { height: 34px; margin-bottom: 14px; }
.site-footer .footer-desc { font-size: 0.88rem; color: #9FB0C8; max-width: 320px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 20px;
  font-size: 0.82rem;
  color: #8DA0BC;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* ===== Utility ===== */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }