/* ================================================================= design tokens (visapass inspired) */
:root {
    --primary-blue: #0f2b46;
    --secondary-blue: #1d4ed8;
    --accent-blue: #3b82f6;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --alert-bg: #fff1f2;
    --alert-border: #f43f5e;
    --alert-text: #be123c;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* ================================================================= reset & base */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-light);
    color: var(--text-main);
    font-family: var(--font-main);
    line-height: 1.6;
}

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

ul {
    list-style: none;
}

/* ================================================================= gov disclaimer top bar */
.gov-disclaimer-top {
    background-color: var(--alert-bg);
    border-bottom: 1px solid var(--alert-border);
    color: var(--alert-text);
    padding: 10px 20px;
    font-size: 0.85rem;
    text-align: center;
    font-weight: 500;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.gov-disclaimer-top strong {
    font-weight: 700;
}

/* ================================================================= header & navigation */
.site-header {
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 39px;
    z-index: 999;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary-blue);
    display: flex;
    flex-direction: column;
    letter-spacing: -0.02em;
}

.brand-logo span {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--secondary-blue);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-top: -3px;
}

.nav-menu {
    display: flex;
    gap: 25px;
    align-items: center;
}

.nav-menu a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
}

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

.header-btn {
    background-color: var(--secondary-blue);
    color: var(--bg-white);
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}

.header-btn:hover {
    background-color: var(--primary-blue);
}

/* ================================================================= hero section (reference layout style) */
.hero-section {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #1e3a8a 100%);
    color: var(--bg-white);
    padding: 80px 30px;
    text-align: center;
}

.hero-container {
    max-width: 900px;
    margin: 0 auto;
}

.hero-tag {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.1);
    color: #93c5fd;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-description {
    font-size: 1.15rem;
    color: #cbd5e1;
    margin-bottom: 35px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.btn-primary-hero {
    background-color: var(--accent-blue);
    color: var(--bg-white);
    padding: 14px 28px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
}

.btn-primary-hero:hover {
    background-color: #2563eb;
    transform: translateY(-2px);
}

.btn-outline-hero {
    background-color: transparent;
    color: var(--bg-white);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 14px 28px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
}

.btn-outline-hero:hover {
    border-color: var(--bg-white);
    background-color: rgba(255, 255, 255, 0.05);
}

/* ================================================================= services grid cards (reference style) */
.services-section {
    max-width: 1200px;
    margin: -50px auto 80px;
    padding: 0 30px;
    position: relative;
    z-index: 10;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background-color: var(--bg-white);
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 30px -10px rgba(0,0,0,0.15);
}

.service-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.service-card-body {
    padding: 30px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    justify-content: space-between;
}

.service-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 12px;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.service-price {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--secondary-blue);
    margin-bottom: 20px;
}

.btn-card {
    display: block;
    text-align: center;
    background-color: var(--bg-light);
    color: var(--primary-blue);
    border: 1px solid var(--border-color);
    padding: 12px;
    border-radius: 6px;
    font-weight: 600;
    transition: var(--transition);
}

.service-card:hover .btn-card {
    background-color: var(--secondary-blue);
    color: var(--bg-white);
    border-color: var(--secondary-blue);
}

/* ================================================================= value props section */
.features-section {
    max-width: 1200px;
    margin: 0 auto 80px;
    padding: 0 30px;
}

.section-title-center {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px;
}

.section-title-center h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.section-title-center p {
    color: var(--text-muted);
    font-size: 1.05rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-box {
    background-color: var(--bg-white);
    padding: 35px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.feature-box h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.feature-box p {
    color: var(--text-muted);
    font-size: 0.92rem;
}

/* ================================================================= footer */
.site-footer {
    background-color: var(--primary-blue);
    color: #94a3b8;
    padding: 70px 30px 30px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-col h4 {
    color: var(--bg-white);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-col p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-top: 15px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col ul a {
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-col ul a:hover {
    color: var(--bg-white);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.85rem;
}