:root {
    --primary-blue: #007bff;
    --primary-yellow: #ffc107;
    --text-dark: #333;
    --text-light: #fff;
}

body {
    font-family: 'Sarabun', sans-serif; /* Popular Thai font */
    background-color: #f8f9fa;
}

/* Carousel Customization */
.carousel-item img {
    height: 500px;
    object-fit: cover;
    border-radius: 0 0 20px 20px;
}

.carousel-caption {
    background: rgba(0, 0, 0, 0.5);
    border-radius: 10px;
    padding: 20px;
}

/* Action Buttons Section */
.action-buttons {
    padding: 40px 20px;
    text-align: center;
}

.btn-custom {
    margin: 10px;
    padding: 15px 30px;
    font-size: 1.2rem;
    border-radius: 50px;
    transition: transform 0.2s, box-shadow 0.2s;
    width: 100%;
    max-width: 400px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: none;
}

.btn-custom:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn-m1 {
    background-color: var(--primary-blue);
    color: white;
}
.btn-m1:hover {
    background-color: #0056b3;
    color: white;
}

.btn-m4 {
    background-color: var(--primary-yellow);
    color: #000;
}
.btn-m4:hover {
    background-color: #e0a800;
    color: #000;
}

.btn-stat {
    background-color: #17a2b8;
    color: white;
}
.btn-stat:hover {
    background-color: #138496;
    color: white;
}

.btn-print {
    background-color: #6c757d;
    color: white;
}
.btn-print:hover {
    background-color: #5a6268;
    color: white;
}

.btn-verify {
    background-color: #dc3545;
    color: white;
}
.btn-verify:hover {
    background-color: #c82333;
    color: white;
}

.btn-room {
    background-color: #28a745;
    color: white;
}
.btn-room:hover {
    background-color: #218838;
    color: white;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    margin-top: 20px;
    background-color: #e9ecef;
}

.back-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: bold;
}
.back-link:hover {
    text-decoration: underline;
}