:root {
    --color-white: #FFFFFF;
    --color-medium-brown: #A08365;
    --color-dark-brown: #5C4033;
    --color-light-brown: #F0EAD6;
    --color-error: #D8000C;
    --color-success: #4CAF50;
    --color-warning: orange;
    --color-highlight-blue: #007bff; 
}

body {
    font-family: Arial, sans-serif;
    background-color: var(--color-light-brown);
    color: var(--color-dark-brown);
    margin: 0;
    padding: 20px;
    line-height: 1.6;
}

.container {
    max-width: 900px;
    margin: 40px auto;
    background-color: var(--color-white);
    padding: 30px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    border: 1px solid var(--color-light-brown);
}

h1, h2 {
    color: var(--color-dark-brown);
    border-bottom: 2px solid var(--color-medium-brown); 
    padding-bottom: 10px;
    margin-top: 0;
}

p {
    margin-bottom: 10px;
}

a {
    color: var(--color-medium-brown);
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: var(--color-dark-brown);
    text-decoration: underline;
}

.error-msg {
    color: var(--color-error);
    background-color: #ffeaea;
    border: 1px solid var(--color-error);
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}

.success-msg {
    color: var(--color-success);
    background-color: #e8f5e9;
    border: 1px solid var(--color-success);
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}

.warning-msg {
    color: var(--color-warning);
    background-color: #fff8e1;
    border: 1px solid var(--color-warning);
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}

.form-group {
    margin-bottom: 20px;
}

input[type="text"],
input[type="password"],
input[type="date"],
select {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border: 1px solid var(--color-light-brown);
    border-radius: 4px;
    box-sizing: border-box;
    background-color: var(--color-white);
    color: var(--color-dark-brown);
}

button, .btn-primary {
    background-color: var(--color-medium-brown); 
    color: var(--color-white);
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

button:hover, .btn-primary:hover {
    background-color: var(--color-dark-brown); 
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    font-size: 0.9em;
}

table th, table td {
    border: 1px solid var(--color-light-brown);
    padding: 10px;
    text-align: left;
}

table th {
    background-color: var(--color-light-brown);
    color: var(--color-dark-brown);
    font-weight: bold;
}

.villa-selection-grid {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)) !important;
    gap: 20px !important; 
}

.villa-card {
    display: flex;
    flex-direction: column;
    cursor: pointer;
    border: 1px solid var(--color-medium-brown); 
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    background-color: var(--color-white);
    color: var(--color-dark-brown);
    position: relative;
}

.villa-card img {
    width: 100% !important; 
    height: 180px !important; 
    object-fit: cover !important; 
    display: block !important;
    border-bottom: 1px solid var(--color-light-brown);
}

.villa-card input[type="radio"] {
    display: none;
}

.villa-card .card-info {
    padding: 10px;
    flex-grow: 1;
    color: var(--color-dark-brown); 
}

.villa-card .card-info h4 {
    margin-top: 5px;
    margin-bottom: 5px;
    color: var(--color-dark-brown);
    font-size: 1.1em;
}

.villa-card .card-info p {
    margin: 0;
    font-size: 0.9em;
    line-height: 1.4;
}

.villa-card input[type="radio"]:checked ~ .card-info {
    border-top: 3px solid var(--color-highlight-blue); 
    background: rgba(0, 123, 255, 0.08);
}

.villa-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.villa-card.unavailable {
    opacity: 0.5;
    pointer-events: none;
    cursor: not-allowed;
    border: 2px solid #ccc;
    box-shadow: none;
}

.villa-card.unavailable input[type="radio"] {
    display: none;
}

@media (max-width: 768px) {
    .villa-selection-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .villa-selection-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    .villa-card img {
        height: 150px;
    }

.grid-section-title {
    grid-column: 1 / -1; 
    
    background-color: var(--color-medium-brown);
    color: var(--color-white);
    padding: 15px 20px;
    margin-top: 10px;
    margin-bottom: 5px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.grid-section-title h3 {
    color: var(--color-white);
    margin: 0;
    padding: 0;
    font-size: 1.4em;
    border: none;
}

.grid-section-title p {
    margin: 5px 0 0 0;
    font-size: 0.9em;
    opacity: 0.9;
}
}