/* ==========================================================================
   Over The Bridge Accountant — Cross-Border Tax & Accounting Services
   Shared stylesheet — blue corporate theme
   ========================================================================== */

:root {
  --navy: #12263f;
  --navy-2: #1c3a5e;
  --accent: #1e66d0;
  --accent-soft: #8ab8f5;
  --ink: #232a33;
  --muted: #5b6572;
  --bg: #f7f8fa;
  --card: #ffffff;
  --line: #e2e6ec;
  --radius: 10px;
  --shadow: 0 2px 10px rgba(18, 38, 63, 0.08);
  --max: 1100px;
  --footer-bg: #0d1b2e;
  --header-muted: #c8d3e0;
  --nav-muted: #dbe4ee;
  --badge: #b9c6d4;
  --lede: #d7e0ea;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
}

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

a { color: var(--navy-2); }
a:hover { color: var(--accent); }

h1, h2, h3, h4 { color: var(--navy); line-height: 1.25; margin-bottom: 0.5em; }
h1 { font-size: 2.1rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.15rem; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section { padding: 3.25rem 0; }
.section.alt { background: #eef1f5; }

.section-intro {
  color: var(--muted);
  max-width: 46rem;
  margin-bottom: 1.75rem;
}

/* ---------- Header / nav ---------- */
.site-header {
  background: var(--navy);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 0.5rem 0;
}
.brand:hover { color: var(--accent-soft); }
.brand small {
  display: block;
  font-weight: 400;
  font-size: 0.72rem;
  color: var(--header-muted);
  letter-spacing: 0.04em;
}
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--accent);
  display: grid;
  place-items: center;
  flex: none;
}
.brand-mark svg { width: 22px; height: 22px; }

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
}
.main-nav a {
  color: var(--nav-muted);
  text-decoration: none;
  padding: 0.5rem 0.85rem;
  border-radius: 6px;
  font-size: 0.95rem;
}
.main-nav a:hover { background: rgba(255, 255, 255, 0.08); color: #fff; }
.main-nav a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  border-radius: 6px;
  padding: 0.4rem 0.7rem;
  font-size: 1rem;
  cursor: pointer;
}

/* ---------- Buttons / CTAs ---------- */
.btn {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.98rem;
  transition: background 0.15s ease, color 0.15s ease;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #3d7de6; color: #fff; }
.btn-outline { border-color: var(--navy); color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { background: var(--accent-soft); color: var(--navy); }

/* ---------- Hero (layout A) ---------- */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 70%);
  color: #fff;
  padding: 4.5rem 0 4rem;
}
.hero h1 { color: #fff; font-size: 2.4rem; max-width: 44rem; }
.hero p.lede {
  color: var(--lede);
  font-size: 1.15rem;
  max-width: 40rem;
  margin: 0.75rem 0 1.75rem;
}
.hero .btn + .btn { margin-left: 0.6rem; }
.hero-badges {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-top: 2.25rem;
  color: var(--badge);
  font-size: 0.88rem;
}
.hero-badges span::before { content: "✓ "; color: var(--accent-soft); }

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}
.card ul { list-style: none; }
.card li {
  padding: 0.3rem 0 0.3rem 1.35rem;
  position: relative;
  color: var(--ink);
  font-size: 0.95rem;
}
.card li::before {
  content: "•";
  color: var(--accent);
  position: absolute;
  left: 0.35rem;
  font-weight: 700;
}

/* ---------- Checklist ---------- */
.checklist {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 0.6rem;
}
.checklist li {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.75rem 1rem 0.75rem 2.4rem;
  position: relative;
  font-size: 0.97rem;
}
.checklist li::before {
  content: "✔";
  position: absolute;
  left: 0.85rem;
  color: var(--accent);
  font-weight: 700;
}

/* ---------- FAQ ---------- */
.faq details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 0.75rem;
  padding: 0.9rem 1.2rem;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--navy);
}
.faq p { margin-top: 0.6rem; color: var(--ink); }
.faq ul { margin: 0.6rem 0 0 1.25rem; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--navy-2), var(--navy));
  color: #fff;
  text-align: center;
  padding: 3.25rem 0;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: var(--lede); max-width: 36rem; margin: 0 auto 1.5rem; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--footer-bg);
  color: #9fb0c2;
  padding: 2.25rem 0 2.75rem;
  font-size: 0.9rem;
}
.site-footer .container {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 2fr 1fr 1fr;
}
.site-footer h4 { color: #fff; font-size: 0.95rem; margin-bottom: 0.6rem; }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 0.35rem; }
.site-footer a { color: var(--header-muted); text-decoration: none; }
.site-footer a:hover { color: var(--accent-soft); }
.footer-note {
  margin-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.25rem;
  font-size: 0.8rem;
  color: #7d8fa3;
}

/* ---------- Contact page ---------- */
.contact-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  max-width: 40rem;
}
.contact-panel dl { display: grid; gap: 1rem; margin: 1.25rem 0; }
.contact-panel dt { font-weight: 700; color: var(--navy); font-size: 0.9rem; }
.contact-panel dd { margin: 0; }
/* ---------- Contact form ---------- */
#contact-form { margin-top: 1.75rem; border-top: 1px solid var(--line); padding-top: 1.5rem; }
#contact-form h3, .contact-panel .form-heading { font-size: 1.05rem; color: var(--navy); margin: 0 0 1rem; }
.form-row { margin-bottom: 0.9rem; }
.form-row label { display: block; font-weight: 600; font-size: 0.88rem; color: var(--navy); margin-bottom: 0.3rem; }
.form-row .optional { font-weight: 400; color: #5a6b82; }
.form-row input,
.form-row textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 0.6rem 0.75rem;
  border: 1px solid #c8d4e4;
  border-radius: 8px;
  font: inherit;
  font-size: 0.95rem;
  color: var(--navy);
  background: #fff;
}
.form-row textarea { resize: vertical; }
.form-row input:focus,
.form-row textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.form-note { font-size: 0.82rem; color: #5a6b82; margin: 0.75rem 0 1rem; }
.form-status { min-height: 1.3em; font-size: 0.9rem; margin: 0.75rem 0 0; }
.form-status.ok { color: #1a7a3c; }
.form-status.err { color: #b3261e; }
#contact-form .btn:disabled { opacity: 0.6; cursor: wait; }
.placeholder-note {
  background: #eef4fd;
  border: 1px solid #bcd4f5;
  color: #1a4d99;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.88rem;
  margin: 1rem 0;
}

/* ---------- 404 ---------- */
.error-hero { text-align: center; padding: 5rem 0; }

/* ---------- Long-form article prose (about / privacy / terms) ---------- */
.prose {
  max-width: 46rem;
  margin: 0 auto;
  font-size: 1.02rem;
}
.prose p { margin-bottom: 1.1rem; }
.prose ul { margin: 0 0 1.25rem 1.25rem; }
.prose li { margin-bottom: 0.4rem; }

/* ==========================================================================
   Cookie consent banner
   ========================================================================== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--navy);
  color: #dbe4ee;
  padding: 1rem 1.25rem;
  display: none;
  z-index: 100;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.25);
}
.cookie-banner.visible { display: block; }
.cookie-banner .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0;
  max-width: var(--max);
}
.cookie-banner p { font-size: 0.88rem; max-width: 44rem; margin: 0; }
.cookie-banner .btn { padding: 0.5rem 1.1rem; font-size: 0.88rem; }
.cookie-banner .btn-secondary {
  background: transparent;
  border-color: #8ea4bd;
  color: #dbe4ee;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 860px) {
  .site-footer .container { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 700px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    width: 100%;
  }
  .main-nav.open { display: block; }
  .main-nav ul {
    flex-direction: column;
    padding-bottom: 0.75rem;
  }
  .hero h1 { font-size: 1.7rem; }
  .site-footer .container { grid-template-columns: 1fr; }
}