:root {
    --primary-color: #0056b3;
    /* Darker, more professional blue */
    --secondary-color: #f8f9fa;
    /* Very light gray for backgrounds */
    --accent-color: #e67e22;
    --text-color: #212529;
    --light-text: #6c757d;
    --white: #ffffff;
    --max-width: 1000px;
    /* Slightly tighter reading container */
    --spacing-unit: 1.5rem;
    --border-radius: 8px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--white);
    /* White background as requested */
    font-size: 16px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: #003d82;
    text-decoration: underline;
}

/* Header */
header {
    background-color: var(--white);
    border-bottom: 1px solid #eaeaea;
    /* Subtle border instead of shadow */
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 45px;
    /* Slightly smaller, more elegant */
    border-radius: 0;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

nav a {
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
}

nav a:hover,
nav a.active {
    color: var(--primary-color);
    text-decoration: none;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
}

/* Typography & Layout */
main {
    padding-top: 2rem;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

h1,
h2,
h3 {
    color: #111;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1.page-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--text-color);
}

h2 {
    font-size: 1.75rem;
    border-bottom: none;
    /* Removed the border */
    margin-top: 3rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    margin-bottom: 1.5rem;
}

ul,
ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
    color: var(--text-color);
}

li {
    margin-bottom: 0.5rem;
}

/* Sections - Open Layout */
section {
    background: transparent;
    padding: 0;
    margin-bottom: 2rem;
    box-shadow: none;
    border-radius: 0;
}

.section-image {
    margin: 2rem 0;
}

.section-image img {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
}

/* Info Box */
.info-box {
    background-color: #f0f7ff;
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.info-box p:last-child {
    margin-bottom: 0;
}

/* Grid & Cards - Minimalist */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.card {
    background: var(--white);
    padding: 1.5rem;
    border: 1px solid #eaeaea;
    /* Subtle border */
    border-radius: var(--border-radius);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    /* Soft shadow on hover only */
    transform: translateY(-2px);
    border-color: transparent;
}

.card h3 {
    color: var(--primary-color);
    margin-top: 0;
}

/* Footer - Clean */
footer {
    background-color: var(--secondary-color);
    /* Light footer */
    color: var(--text-color);
    padding: 4rem 0 2rem;
    margin-top: 4rem;
    border-top: 1px solid #eaeaea;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
}

.footer-section h4 {
    margin-bottom: 1.5rem;
    color: #111;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: var(--light-text);
    font-size: 0.95rem;
}

.footer-section a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.copyright {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #e1e1e1;
    color: var(--light-text);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    nav ul {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        border-bottom: 1px solid #eaeaea;
        padding: 1.5rem;
        gap: 1rem;
    }

    nav ul.active {
        display: flex;
    }

    .section-image img {
        height: auto;
    }
}