/* --- CSS Variables & Basic Setup --- */
:root {
    --primary-color: #003366; /* Deep Blue */
    --secondary-color: #ffcc00; /* Gold/Yellow */
    --accent-color: #0055a4; /* Lighter Blue */
    --text-color: #333;
    --bg-color: #f4f4f4;
    --light-gray: #e0e0e0;
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

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

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
}

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

h1, h2, h3 {
    font-family: var(--font-heading);
    line-height: 1.2;
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--accent-color);
}

ul {
    list-style: none;
}

.btn {
    display: inline-block;
    padding: 12px 25px;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 700;
    text-transform: uppercase;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: var(--primary-color);
}
.btn-primary:hover {
    background-color: #ffdb4d;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--primary-color);
    color: #fff;
    width: 100%;
    margin-top: 10px;
}
.btn-secondary:hover {
    background-color: var(--accent-color);
}

/* --- Header & Navigation --- */
.main-header {
    background: #fff;
    padding: 1rem 0;
    border-bottom: 2px solid var(--light-gray);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    max-height: 50px;
}

.main-nav ul {
    display: flex;
}

.main-nav li {
    margin-left: 25px;
}

.main-nav a {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 600;
    padding-bottom: 5px;
    border-bottom: 3px solid transparent;
    transition: border-color 0.3s ease;
}
.main-nav a:hover, .main-nav a.active {
    border-bottom-color: var(--secondary-color);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: transparent;
    border: 0;
    cursor: pointer;
}
.hamburger {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: 0.3s;
}

/* --- Hero Section --- */
.hero {
    background: linear-gradient(rgba(0, 51, 102, 0.7), rgba(0, 51, 102, 0.7)), url('../assets/images/hero-bg.jpg') no-repeat center center/cover;
    height: 70vh;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 3.5rem;
    color: #fff;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
}

.hero-content p {
    font-size: 1.2rem;
    margin: 1rem 0 2rem 0;
    max-width: 600px;
}

/* --- Content Section --- */
.content-section {
    padding: 4rem 0;
    background-color: var(--bg-color);
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 30px;
}

.sidebar-left, .sidebar-right {
    background: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.sidebar-left h3, .sidebar-right h3 {
    color: var(--primary-color);
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.sidebar-left ul li {
    margin-bottom: 10px;
}
.sidebar-left ul li a {
    color: var(--text-color);
    font-weight: bold;
    transition: color 0.3s ease;
}
.sidebar-left ul li a:hover {
    color: var(--accent-color);
}

.main-content {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.main-content h2 {
    color: var(--primary-color);
}

/* --- Contact Form --- */
.contact-form label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
}
.form-message {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
    text-align: center;
}
.form-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}
.form-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* --- Footer --- */
.main-footer {
    background: var(--primary-color);
    color: #fff;
    text-align: center;
    padding: 2rem 0;
}

/* --- Responsive Design --- */
@media (max-width: 992px) {
    .hero-content h1 { font-size: 2.8rem; }
    .content-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #fff;
        border-top: 2px solid var(--light-gray);
    }
    .main-nav.nav-active {
        display: block;
    }
    .main-nav ul {
        flex-direction: column;
        align-items: center;
        padding: 1rem 0;
    }
    .main-nav li {
        margin: 10px 0;
    }
    .hero { height: 50vh; }
    .hero-content h1 { font-size: 2.2rem; }
}