/* --- Global Resets & Variables --- */
:root {
    --primary-color: #0d2c54;     /* Deep Transit Navy */
    --secondary-color: #c97a14;   /* Classic Amber/Trolley Highlight */
    --text-dark: #222222;         /* Easy-to-read charcoal body text */
    --text-light: #f9f9f9;        /* Soft white background */
    --bg-light: #f0f4f8;          /* Light grey-blue for section blocks */
    --white: #ffffff;
    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-stack);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

.section-padding {
    padding: 60px 0;
}

/* --- Alert Bar --- */
.alert-bar {
    background-color: var(--secondary-color);
    color: var(--white);
    text-align: center;
    padding: 10px 20px;
    font-size: 0.95rem;
}

/* --- Header & Navigation --- */
.main-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
    /* Fallback background if logo image is missing initially */
    background: rgba(255,255,255,0.1); 
    border-radius: 4px;
}

.logo-text h1 {
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.2;
}

.logo-text .tagline {
    font-size: 0.85rem;
    color: #a5bccc;
}

.main-nav ul {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 20px;
}

.main-nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.main-nav a:hover {
    color: var(--secondary-color);
}

.main-nav .btn-nav {
    background-color: var(--secondary-color);
    padding: 8px 16px;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.main-nav .btn-nav:hover {
    background-color: #b06a0f;
    color: var(--white);
}

/* --- Hero Section --- */
.hero {
    background: linear-gradient(rgba(13, 44, 84, 0.85), rgba(13, 44, 84, 0.85)), url('fleet-overview.jpg') no-repeat center center/cover;
    background-color: var(--primary-color); 
    color: var(--white);
    padding: 100px 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #e2e8f0;
}

.btn-primary {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--white);
    text-decoration: none;
    padding: 12px 28px;
    font-weight: 600;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.btn-primary:hover {
    background-color: #b06a0f;
}

/* --- Grid Framework --- */
.grid-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.grid-three-col {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

/* --- About Section --- */
.about-text h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 15px;
    font-size: 1.05rem;
}

.featured-img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.about-image-wrapper {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* --- Cards / Info Section --- */
.section-title {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 40px;
}

.bg-light {
    background-color: var(--bg-light);
}

.card {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    text-align: center;
    border-top: 4px solid var(--primary-color);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 15px;
}

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

.card p {
    font-size: 0.95rem;
    margin-bottom: 10px;
    color: #444;
}

.card a {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
}

/* --- Footer --- */
.main-footer {
    background-color: #1a1a1a;
    color: #bcbcbc;
    padding: 40px 0;
    text-align: center;
    font-size: 0.9rem;
}

.footer-content p {
    margin-bottom: 8px;
}

.footer-subtext {
    color: #666;
    font-size: 0.8rem;
}

/* --- Responsive Media Queries --- */
@media (max-width: 768px) {
    .header-flex {
        flex-direction: column;
        text-align: center;
    }

    .logo-area {
        flex-direction: column;
        gap: 5px;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 10px;
        width: 100%;
    }

    .grid-two-col {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .hero h2 {
        font-size: 1.8rem;
    }