/* ==========================================================================
   Avenza Technologies LLC - shared stylesheet
   ========================================================================== */

/* --- Tokens ------------------------------------------------------------- */
:root {
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --bg-deep: #10233f;
  --text: #1a2130;
  --text-muted: #5b6472;
  --text-invert: #eef1f6;
  --accent: #1e4d8c;
  --accent-dark: #143766;
  --accent-soft: #e8effa;
  --border: #e2e6ec;
  --shadow: 0 1px 2px rgba(16, 35, 63, .05), 0 8px 24px rgba(16, 35, 63, .06);
  --radius: 12px;
  --maxw: 1080px;
  --gutter: 16px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12161f;
    --bg-alt: #191f2b;
    --bg-deep: #0c1119;
    --text: #eef1f6;
    --text-muted: #a3adbd;
    --accent: #6fa3e0;
    --accent-dark: #8fbcf0;
    --accent-soft: #1b2436;
    --border: #2a3242;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
  }
}

:root[data-theme="dark"] {
  --bg: #12161f;
  --bg-alt: #191f2b;
  --bg-deep: #0c1119;
  --text: #eef1f6;
  --text-muted: #a3adbd;
  --accent: #6fa3e0;
  --accent-dark: #8fbcf0;
  --accent-soft: #1b2436;
  --border: #2a3242;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
}

/* --- Base --------------------------------------------------------------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--accent); }

h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.25; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* --- Header / nav ------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 16px;
  position: relative;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.03em;
}

.logo-mark {
  width: 30px;
  height: 30px;
  flex: none;
  display: block;
}

.site-nav { display: flex; align-items: center; gap: 4px; }

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 8px;
}
.site-nav a:hover { color: var(--text); background: var(--bg-alt); }
.site-nav a[aria-current="page"] { color: var(--accent); font-weight: 600; }

.site-nav .btn { margin-left: 8px; color: #fff; }
.site-nav .btn:hover { background: var(--accent-dark); color: #fff; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--text);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
}

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: calc(var(--gutter) * -1);
    right: calc(var(--gutter) * -1);
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 12px var(--gutter) 18px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 12px; }
  .site-nav .btn { margin-left: 0; margin-top: 6px; text-align: center; }
}

/* --- Buttons ------------------------------------------------------------ */
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
}
.btn:hover { background: var(--accent-dark); }

.btn-ghost {
  background: transparent;
  color: var(--accent);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--bg-alt); color: var(--accent-dark); }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* --- Sections ----------------------------------------------------------- */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.section-head { max-width: 640px; margin-bottom: 36px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 0 0 10px; }
.section-head p { color: var(--text-muted); margin: 0; font-size: 1.02rem; }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

/* --- Hero --------------------------------------------------------------- */
.hero { padding: 80px 0 64px; text-align: center; }
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); margin: 0 0 16px; }
.hero p {
  color: var(--text-muted);
  font-size: 1.13rem;
  max-width: 660px;
  margin: 0 auto 30px;
}
.hero .btn-row { justify-content: center; }

.page-hero {
  padding: 56px 0 44px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin: 0 0 12px; }
.page-hero p { color: var(--text-muted); font-size: 1.08rem; max-width: 680px; margin: 0; }

/* --- Stats strip -------------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  padding: 32px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.stat strong {
  display: block;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  margin-bottom: 2px;
}
.stat span { color: var(--text-muted); font-size: 0.92rem; }

/* --- Cards -------------------------------------------------------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.card h3 { margin: 0 0 8px; font-size: 1.08rem; }
.card p { color: var(--text-muted); font-size: 0.95rem; margin: 0; }

.card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}
.card-icon svg { width: 20px; height: 20px; }

/* --- Split layouts ------------------------------------------------------ */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 760px) { .split { grid-template-columns: 1fr; gap: 32px; } }

.prose p { color: var(--text-muted); }
.prose > :first-child { margin-top: 0; }
.prose h3 { margin: 28px 0 8px; font-size: 1.1rem; color: var(--text); }

/* --- Numbered process --------------------------------------------------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 22px; }
.steps li { display: grid; grid-template-columns: 36px 1fr; gap: 16px; align-items: start; }
.steps .num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.9rem;
}
.steps h3 { margin: 4px 0 4px; font-size: 1.05rem; }
.steps p { margin: 0; color: var(--text-muted); font-size: 0.95rem; }

/* --- CTA band ----------------------------------------------------------- */
.cta {
  background: var(--bg-deep);
  color: var(--text-invert);
  border-radius: var(--radius);
  padding: 48px 32px;
  text-align: center;
}
.cta h2 { margin: 0 0 10px; font-size: clamp(1.4rem, 3vw, 1.9rem); }
.cta p { color: #b9c4d6; margin: 0 auto 26px; max-width: 520px; }
.cta .btn { background: #fff; color: var(--bg-deep); }
.cta .btn:hover { background: #dfe7f3; }

.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 20px; }
.contact-list strong {
  display: block;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.contact-list a { text-decoration: none; }
.contact-list a:hover { text-decoration: underline; }

/* --- Footer ------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  padding: 48px 0 28px;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } }
.footer-grid p { color: var(--text-muted); margin: 12px 0 0; max-width: 340px; }
.footer-grid h4 {
  margin: 0 0 12px;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer-grid ul a { color: var(--text); text-decoration: none; }
.footer-grid ul a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  color: var(--text-muted);
  text-align: center;
}
.footer-bottom p { margin: 0; }