/* General Body Styles */
body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    background-color: #f8f9fa;
    color: #495057; /* Softer body text */
    line-height: 1.6;
}

/* Header and Navigation */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 1rem 5%;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav .logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #1d3540; /* Darker, richer text */
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1.5rem;
}

nav a {
    text-decoration: none;
    color: #555;
    font-weight: 500;
    transition: color 0.3s ease;
}

nav a:hover {
    color: #fca311; /* Warm amber accent for hover */
}

/* Main Content */
main {
    padding: 2rem 5%;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 7rem 2rem;
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://images.unsplash.com/photo-1566073771259-6a8506099945?auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    color: #fff;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.hero h1 {
    margin-top: 0;
    font-size: 2.5rem;
    font-weight: 700;
}

.hero p {
    font-size: 1.1rem;
    font-weight: 300;
}

/* Availability Filter */
.availability-filter {
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    margin-bottom: 3rem;
}

.availability-filter h3 {
    text-align: center;
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: #1d3540;
}

#availability-form {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-end;
    gap: 1.5rem;
}

#availability-form .form-group {
    margin-bottom: 0;
}

/* Room Listings */
.room-listing h2, .admin-dashboard h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #1d3540;
}

.room-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.room-card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    transition: transform 0.3s ease;
}

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

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

.room-card h3 {
    padding: 0.5rem 1.5rem 0;
    font-size: 1.2rem;
}

.room-card p {
    padding: 0 1.5rem;
}

.room-card .price {
    font-weight: bold;
    color: #1a535c; /* Deep teal for price */
    padding: 0 1.5rem 1.5rem;
}

/* Styles for booked rooms on the main page */
.room-card.booked {
    opacity: 0.6;
    pointer-events: none; /* Disables mouse events like hover */
}

/* Buttons */
.btn, .btn-danger {
    display: block;
    width: calc(100% - 2rem);
    margin: 1rem;
    padding: 0.75rem;
    border: none;
    border-radius: 5px;
    background-color: #1a535c; /* Primary button color to deep teal */
    color: #fff;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    text-align: center;
    transition: background-color 0.3s ease;
}

#availability-form .btn, #availability-form .btn-danger {
    width: auto;
    margin: 0;
    padding: 0.75rem 1.5rem;
}

.btn:hover {
    background-color: #123a40; /* Darker teal for hover */
}

.btn-danger {
    background-color: #e74c3c;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-success {
    background-color: #28a745;
}

.btn-success:hover {
    background-color: #218838;
}

/* Admin Table */
table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #f8f9fa;
}

tr.checked-out-row {
    opacity: 0.6;
    background-color: #f2f2f2;
    text-decoration: line-through;
}

/* Admin Table Action Buttons */
.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.action-buttons .btn, .action-buttons .btn-danger {
    display: inline-block;
    width: auto;
    padding: 0.4rem 0.8rem;
    margin: 0;
    font-size: 0.85rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    margin-top: 2rem;
    background-color: #e9ecef;
    color: #555;
}

/* Modal Styles */
.modal {
    display: none; /* Hidden by default */
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.5); /* Black background with opacity */
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: #fff;
    margin: auto;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    width: 90%;
    max-width: 500px;
    position: relative;
    animation: slide-down 0.4s ease-out;
}

@keyframes slide-down {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close-button {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close-button:hover,
.close-button:focus {
    color: #333;
}

/* Form Styles */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ced4da;
    border-radius: 5px;
    box-sizing: border-box; /* Important for padding and width */
}

.error-message {
    color: #e74c3c;
    margin-bottom: 1rem;
}

/* Bill Modal Specific Styles */
#bill-details {
    margin-top: 1.5rem;
    margin-bottom: 2rem;
    line-height: 1.8;
}

#bill-details .bill-row {
    display: flex;
    justify-content: space-between;
    padding: 0.6rem 0;
    border-bottom: 1px solid #eee;
}

#bill-details .bill-row:last-child {
    border-bottom: none;
}

#bill-details .bill-row span:first-child {
    font-weight: 500;
    color: #555;
}

#bill-details .bill-total {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1d3540;
}

.room-card.booked .btn {
    background-color: #6c757d; /* A neutral gray color */
    cursor: not-allowed;
}