/* Custom Properties */
:root {
    --primary-color: #0b4b8a;
    --primary-hover: #08386b;
    --secondary-color: #d13d27;
    --secondary-hover: #b0321f;
    --text-dark: #333333;
    --text-light: #666666;
    --bg-light: #f5f7fa;
    --white: #ffffff;
    --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
}

/* Reset & Base Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-family); color: var(--text-dark); line-height: 1.6; font-size: 16px; padding-bottom: 60px; }
h1, h2, h3 { line-height: 1.2; margin-bottom: 1rem; color: var(--primary-color); }
p { margin-bottom: 1.2rem; color: var(--text-light); }
a { color: var(--primary-color); text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

/* Layout Utilities */
.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.section-padding { padding: var(--spacing-lg) 0; }
.grid-2 { display: grid; grid-template-columns: 1fr; gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: 1fr; gap: 2rem; }
.text-center { text-align: center; }
.bg-light { background-color: var(--bg-light); }
.bg-dark { background-color: var(--primary-color); color: var(--white); padding: 3rem 0; }
.bg-dark h1, .bg-dark p { color: var(--white); }
.mt-4 { margin-top: 2rem; }

@media (min-width: 768px) {
    .grid-2 { grid-template-columns: 1fr 1fr; align-items: center; }
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    body { padding-bottom: 0; }
}

/* Buttons */
.btn { display: inline-block; padding: 0.75rem 1.5rem; border-radius: 4px; font-weight: bold; text-align: center; transition: background 0.3s; cursor: pointer; }
.btn-primary { background: var(--primary-color); color: var(--white); }
.btn-primary:hover { background: var(--primary-hover); color: var(--white); }
.btn-secondary { background: var(--secondary-color); color: var(--white); }
.btn-secondary:hover { background: var(--secondary-hover); color: var(--white); }
.btn-large { background: var(--secondary-color); color: var(--white); padding: 1rem 2rem; font-size: 1.1rem; }
.btn-outline { border: 2px solid var(--primary-color); color: var(--primary-color); }
.btn-outline:hover { background: var(--primary-color); color: var(--white); }

/* Header */
.site-header { background: var(--white); box-shadow: 0 2px 10px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 100; padding: 1rem 0; }
.header-flex { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.logo a { font-size: 1.5rem; font-weight: 800; color: var(--primary-color); }
.logo span { display: block; font-size: 0.9rem; font-weight: 400; color: var(--text-light); }
.main-nav ul { list-style: none; display: flex; gap: 1.5rem; }
.main-nav a { font-weight: 600; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--secondary-color); }

@media (max-width: 767px) {
    .header-contact { display: none; }
    .header-flex { flex-direction: column; gap: 1rem; text-align: center; }
}

/* Hero Section */
.hero { position: relative; min-height: 60vh; display: flex; align-items: center; overflow: hidden; }
.hero-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: 1; }
.hero-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 20, 45, 0.75); z-index: 2; }
.hero-content { position: relative; z-index: 3; color: var(--white); max-width: 700px; padding: 2rem 0; }
.hero-content h1 { color: var(--white); font-size: clamp(2rem, 5vw, 3.5rem); margin-bottom: 1rem; }
.hero-content p { color: #f0f0f0; font-size: 1.1rem; margin-bottom: 2rem; }

/* Cards & FAQs */
.card { background: var(--white); padding: 2rem; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); }
.faq-list details { background: var(--white); border: 1px solid #ddd; border-radius: 4px; margin-bottom: 1rem; padding: 1rem; }
.faq-list summary { font-weight: bold; cursor: pointer; color: var(--primary-color); outline: none; }
.faq-list details[open] p { margin-top: 1rem; margin-bottom: 0; }

/* Footer */
.site-footer { background: #1a1a1a; color: #fff; padding: 3rem 0 1rem; }
.site-footer h3 { color: #fff; margin-bottom: 1rem; font-size: 1.2rem; }
.site-footer p, .site-footer a { color: #ccc; }
.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 0.5rem; }
.site-footer a:hover { color: var(--secondary-color); }
.footer-bottom { text-align: center; margin-top: 2rem; border-top: 1px solid #333; padding-top: 1rem; font-size: 0.9rem; }

/* Mobile Sticky Call CTA */
.mobile-sticky-cta { display: none; }
@media (max-width: 767px) {
    .mobile-sticky-cta { display: block; position: fixed; bottom: 0; left: 0; width: 100%; background: var(--secondary-color); text-align: center; z-index: 999; }
    .mobile-sticky-cta a { display: block; color: var(--white); font-weight: bold; font-size: 1.2rem; padding: 1rem; }
}