:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

.navbar {
    background-color: var(--primary-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.navbar-brand {
    color: white !important;
    font-weight: bold;
    font-size: 1.5rem;
}

.nav-link {
    color: rgba(255,255,255,0.8) !important;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: white !important;
}

.hero-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 4rem 0;
    margin-bottom: 2rem;
}

.card {
    border: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.btn-primary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

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

footer {
    background-color: var(--primary-color);
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

/* Image styles */
.img-fluid {
    max-width: 100%;
    height: auto;
}

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

/* Override Bootstrap warning colors for better legibility */
.text-warning {
    color: #fd7e14 !important;
}

.bg-warning {
    background-color: #fd7e14 !important;
    color: white !important;
}

.alert-warning {
    background-color: #fff3e0 !important;
    border-color: #fd7e14 !important;
    color: #e65100 !important;
}

.progress-bar.bg-warning {
    background-color: #fd7e14 !important;
}