:root {
    --primary-blue: #0079C1;
    --secondary-blue: #00609C;
    --accent-red: #ED1C24;
    --text-dark: #333333;
    --text-light: #666666;
    --bg-white: #FFFFFF;
    --bg-offwhite: #F4F7F9;
    --border-color: #E2E8F0;
    --header-height: 80px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.site-header {
    height: var(--header-height);
    background-color: var(--bg-white);
    border-bottom: 2px solid var(--primary-blue);
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.header-inner {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.8rem;
    color: var(--primary-blue);
    text-transform: uppercase;
    letter-spacing: -1px;
}

.logo span {
    color: var(--accent-red);
}

.main-nav {
    display: flex;
    gap: 30px;
}

.main-nav a {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-dark);
    transition: color 0.3s;
}

.main-nav a:hover, .main-nav a.active {
    color: var(--primary-blue);
}

.nav-cta {
    background-color: var(--primary-blue);
    color: #fff !important;
    padding: 10px 20px;
    border-radius: 4px;
    transition: background 0.3s !important;
}

.nav-cta:hover {
    background-color: var(--secondary-blue) !important;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: #fff;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero p.lead {
    font-size: 1.25rem;
    max-width: 800px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.btn {
    padding: 15px 35px;
    font-weight: 700;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.2s, background 0.3s;
}

.btn-primary {
    background-color: var(--accent-red);
    color: #fff;
}

.btn-primary:hover {
    background-color: #d01920;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid #fff;
    color: #fff;
}

.btn-outline:hover {
    background-color: rgba(255,255,255,0.1);
    transform: translateY(-2px);
}

/* Section Styling */
.section {
    padding: 80px 0;
}

.section-alt {
    background-color: var(--bg-offwhite);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

/* Content & Article */
.article-content {
    max-width: 900px;
    margin: 0 auto;
}

.article-content h2, .article-content h3 {
    margin: 40px 0 20px;
    color: var(--primary-blue);
}

.article-content p {
    margin-bottom: 20px;
    color: var(--text-dark);
}

.article-content ul {
    margin-bottom: 30px;
    padding-left: 20px;
}

.article-content li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 20px;
}

.article-content li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent-red);
}

/* AI Chunk Styling */
.ai-chunk {
    background: #f0f7ff;
    border-left: 4px solid var(--primary-blue);
    padding: 20px;
    margin-bottom: 30px;
    font-style: italic;
    color: var(--secondary-blue);
    font-size: 1.1rem;
}

/* Grid & Cards */
.grid {
    display: grid;
    gap: 30px;
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.card {
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    border-top: 4px solid var(--primary-blue);
}

.card h3 {
    margin-bottom: 15px;
    color: var(--primary-blue);
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
}

.faq-question {
    width: 100%;
    padding: 20px 0;
    text-align: left;
    background: none;
    border: none;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-blue);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
}

.faq-answer {
    padding: 0 0 20px;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

/* Footer */
.site-footer {
    background-color: #1a202c;
    color: #fff;
    padding: 80px 0 40px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 80px;
}

.footer-brand h4 {
    margin-bottom: 20px;
}

.footer-nav h4 {
    margin-bottom: 25px;
    font-size: 1.1rem;
}

.footer-nav ul li {
    margin-bottom: 12px;
}

.footer-nav a {
    opacity: 0.7;
    transition: opacity 0.3s;
}

.footer-nav a:hover {
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 40px;
    display: flex;
    justify-content: space-between;
    opacity: 0.6;
}

.footer-links {
    display: flex;
    gap: 30px;
}

/* Responsive */
@media (max-width: 992px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    .grid-3 {
        grid-template-columns: 1fr;
    }
    .main-nav {
        display: none;
    }
}