/* Base */
:root {
  --bg: #ffffff;
  --fg: #0f172a;          /* slate-900 */
  --muted: #475569;       /* slate-600 */
  --border: #e2e8f0;      /* slate-200 */
  --accent: #0369a1;      /* sky-700 - better contrast on white */
  --accent-600: #075985;  /* sky-800 */
  --alt: #f8fafc;         /* slate-50 */
  --card: #ffffff;

  --radius: 12px;
  --shadow: 0 8px 30px rgba(2, 8, 23, 0.06);
  color-scheme: light dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  padding: 0;
  margin: 0;
  color: var(--fg);
  background: var(--bg);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica,
    Arial, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  position: static;
  width: auto;
  height: auto;
  padding: 0.5rem 0.75rem;
  background: #fff7ed;
  border: 1px solid #fdba74;
  border-radius: 8px;
}

/* Layout */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  text-transform: uppercase;
}
.brand img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.site-nav ul {
  display: flex;
  list-style: none;
  gap: 0.75rem;
  padding: 0;
  margin: 0;
}

.site-nav a {
  display: inline-block;
  padding: 0.65rem 0.9rem;
  border-radius: 8px;
}
.site-nav a:hover,
.site-nav a:focus {
  background: var(--alt);
}

.hero {
  padding: 5rem 0 3.5rem;
  background: linear-gradient(180deg, var(--alt) 0%, #ffffff 70%);
}
.hero h1 {
  font-size: clamp(2rem, 2.8vw + 1.4rem, 3rem);
  line-height: 1.2;
  margin: 0 0 0.75rem 0;
  max-width: 22ch;
  text-wrap: balance;
}
.hero p {
  color: var(--muted);
  margin: 0.25rem 0 1.1rem 0;
  font-size: 1.1rem;
  max-width: 65ch;
}
.cta-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin: 1rem 0 0.75rem;
}
.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  color: var(--muted);
  padding: 0;
  margin: 1rem 0 0;
  list-style: none;
}

.section {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
}
.section-alt {
  background: var(--alt);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
}
.card {
  grid-column: span 12;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
  transition: transform 120ms ease-out, box-shadow 120ms ease-out;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 40px rgba(2, 8, 23, 0.08);
}
@media (min-width: 700px) {
  .card {
    grid-column: span 4;
  }
}

.testimonial blockquote {
  font-size: 1.1rem;
  margin: 0 0 0.5rem 0;
}
.testimonial figcaption {
  color: var(--muted);
}

.contact-form {
  display: grid;
  gap: 0.75rem;
  max-width: 640px;
}
.form-row {
  display: grid;
  gap: 0.35rem;
}
input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.6rem 0.8rem;
  font: inherit;
}
input:focus,
textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.contact-meta {
  margin-top: 1rem;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--border);
  background: #fff;
}
.site-footer .container {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  flex-wrap: wrap;
}
.site-footer ul {
  list-style: none;
  display: flex;
  gap: 0.75rem;
  padding: 0;
  margin: 0;
}

/* Typography */
h1,
h2,
h3 {
  line-height: 1.3;
}
h2 {
  margin: 0 0 1rem 0;
}
h3 {
  margin: 0.5rem 0;
}
p {
  margin: 0.5rem 0;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.6rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--fg);
  box-shadow: var(--shadow);
  font-weight: 600;
  transition: transform 120ms ease-out, background-color 120ms ease-out, box-shadow 120ms ease-out, color 120ms ease-out, border-color 120ms ease-out;
}
.btn:hover,
.btn:focus {
  transform: translateY(-1px);
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}
.btn-primary:hover,
.btn-primary:focus {
  background: var(--accent-600);
}
.btn-secondary {
  background: #fff;
  color: var(--accent);
  border-color: var(--accent);
}

/* Text helpers */
.muted {
  color: var(--muted);
  font-size: 0.95rem;
}

/* Anchor offset for sticky header */
section[id] {
  scroll-margin-top: 96px;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
}
th,
td {
  padding: 0.6rem;
  border: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}
thead th {
  background: var(--alt);
  font-weight: 700;
}
.table-sm th,
.table-sm td {
  padding: 0.5rem;
  font-size: 0.95rem;
}

/* Focus visibility for accessibility */
.btn:focus-visible,
.site-nav a:focus-visible,
details > summary:focus-visible,
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  box-shadow: none;
}

/* FAQ accordion styling */
details {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin: 0.5rem 0;
}
details > summary {
  list-style: none;
  padding: 1rem 1.125rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  cursor: pointer;
  color: var(--fg);
  font-size: 1.125rem;
}
details > summary::-webkit-details-marker {
  display: none;
}
details[open] > summary {
  border-bottom: 1px solid var(--border);
}
details > p {
  padding: 0.5rem 1rem 1rem;
  margin: 0;
  color: var(--fg);
  font-size: 1rem;
  line-height: 1.7;
}
details > summary:hover {
  background: rgba(2, 8, 23, 0.03);
}

/* Dark mode (respects user preference) */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --fg: #e5e7eb;
    --muted: #94a3b8;
    --border: #1f2937;
    --accent: #38bdf8;
    --accent-600: #0ea5e9;
    --alt: #0f172a;
    --card: #0b1220;
    --shadow: 0 8px 30px rgba(2, 8, 23, 0.2);
  }
  .site-header {
    background: rgba(15, 23, 42, 0.85);
    border-bottom-color: var(--border);
  }
  .site-footer {
    background: #0b1220;
    border-top-color: var(--border);
  }
  .section-alt {
    background: var(--alt);
  }
  /* FAQ cards in dark mode: keep high contrast */
  details {
    background: var(--card);
    border-color: var(--border);
  }
  .btn-secondary {
    background: var(--card);
    color: var(--accent);
    border-color: var(--accent);
  }
  details > summary:hover {
    background: rgba(255, 255, 255, 0.06);
  }
  details > p {
    color: var(--fg);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}