/* Modern Hotel Management System CSS */
/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --light-bg: #f8fafc;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--gray-800);
    line-height: 1.6;
    font-size: 14px;
}

/* Container and Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
header {
    background: var(--white);
    box-shadow: var(--shadow-md);
    padding: 1rem 0;
    margin-bottom: 2rem;
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

header h1 {
    color: var(--primary-color);
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-align: center;
}

nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

nav a {
    text-decoration: none;
    color: var(--gray-600);
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.2s ease;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
}

nav a:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Main Content */
main {
    flex: 1;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--gray-100);
}

.page-header h2 {
    color: var(--gray-800);
    font-size: 1.5rem;
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    gap: 0.5rem;
    min-height: 44px;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

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

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-200);
}

.btn-danger {
    background: var(--danger-color);
    color: var(--white);
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-success {
    background: var(--success-color);
    color: var(--white);
}

.btn-success:hover {
    background: #059669;
}

.btn-warning {
    background: var(--warning-color);
    color: var(--white);
}

.btn-warning:hover {
    background: #d97706;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    min-height: 36px;
}

/* Checkbox Styles */
.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
    color: var(--gray-700);
    gap: 0.75rem;
    padding: 0.5rem 0;
}

.checkbox-label input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid var(--gray-300);
    border-radius: 0.25rem;
    background: var(--white);
    cursor: pointer;
    position: relative;
    transition: all 0.2s ease;
}

.checkbox-label input[type="checkbox"]:checked {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-label input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: bold;
}

.checkbox-label input[type="checkbox"]:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.checkbox-label input[type="checkbox"]:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Forms */
.form-container {
    max-width: 800px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.875rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    transition: all 0.2s ease;
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: var(--gray-500);
    font-size: 0.75rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-200);
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    border: 1px solid transparent;
    font-weight: 500;
}

.alert-success {
    background: #ecfdf5;
    color: #065f46;
    border-color: #a7f3d0;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border-color: #fecaca;
}

.alert-warning {
    background: #fffbeb;
    color: #92400e;
    border-color: #fed7aa;
}

.alert-info {
    background: #eff6ff;
    color: #1e40af;
    border-color: #bfdbfe;
}

/* Tables */
.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
}

th {
    background: var(--gray-50);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--gray-700);
    border-bottom: 2px solid var(--gray-200);
    font-size: 0.875rem;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-600);
}

tr:hover {
    background: var(--gray-50);
}

/* Status Badges */
.status {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-confirmed {
    background: #ecfdf5;
    color: #065f46;
}

.status-checked_in {
    background: #eff6ff;
    color: #1e40af;
}

.status-checked_out {
    background: #fef3c7;
    color: #92400e;
}

.status-cancelled {
    background: #fef2f2;
    color: #991b1b;
}

.status-available {
    background: #ecfdf5;
    color: #065f46;
}

.status-occupied {
    background: #fef2f2;
    color: #991b1b;
}

.status-maintenance {
    background: #fef3c7;
    color: #92400e;
}

.status-reserved {
    background: #eff6ff;
    color: #1e40af;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
}

.card-header {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-200);
}

.card-header h3 {
    color: var(--gray-800);
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
}

/* Dashboard Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    transition: all 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-card h3 {
    color: var(--gray-600);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-card .value {
    color: var(--gray-900);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-card .change {
    color: var(--success-color);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Detail Cards */
.detail-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
}

.detail-card h3 {
    color: var(--gray-800);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--gray-100);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-100);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-row .label {
    font-weight: 500;
    color: var(--gray-600);
}

.detail-row .value {
    color: var(--gray-800);
    font-weight: 600;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: var(--gray-50);
    border-radius: var(--border-radius);
    border: 1px solid var(--gray-200);
}

.info-item .label {
    font-weight: 500;
    color: var(--gray-600);
}

.info-item .value {
    color: var(--gray-800);
    font-weight: 600;
}

/* Search and Filters */
.search-container {
    background: var(--gray-50);
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
    border: 1px solid var(--gray-200);
}

.search-form {
    display: flex;
    gap: 1rem;
    align-items: end;
    flex-wrap: wrap;
}

.search-form .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 200px;
}

.search-btn {
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
}

.search-btn:hover {
    background: var(--primary-dark);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.pagination a {
    padding: 0.5rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    color: var(--gray-600);
    text-decoration: none;
    transition: all 0.2s ease;
}

.pagination a:hover,
.pagination a.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--white);
    margin: 5% auto;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 600px;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    color: var(--gray-400);
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s ease;
}

.close:hover {
    color: var(--gray-600);
}

/* Staff Grid */
.staff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.staff-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: all 0.2s ease;
}

.staff-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.staff-card h3 {
    margin: 0 0 1rem 0;
    color: var(--gray-800);
    font-size: 1.125rem;
    font-weight: 600;
}

.staff-info {
    margin-bottom: 1.5rem;
}

.staff-info p {
    margin: 0.5rem 0;
    color: var(--gray-600);
    font-size: 0.875rem;
}

.staff-actions {
    display: flex;
    gap: 0.75rem;
}

/* Role Badges */
.role-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.role-admin {
    background: #fef2f2;
    color: #991b1b;
}

.role-manager {
    background: #eff6ff;
    color: #1e40af;
}

.role-staff {
    background: #ecfdf5;
    color: #065f46;
}

/* Lookup Form */
.lookup-form {
    background: var(--gray-50);
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    margin-bottom: 2rem;
    border: 1px solid var(--gray-200);
    display: flex;
    gap: 1rem;
    align-items: end;
    flex-wrap: wrap;
}

.lookup-form .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 200px;
}

/* No Data */
.no-data {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--gray-500);
    font-style: italic;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    main {
        padding: 1rem;
    }
    
    .page-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    nav {
        flex-direction: column;
    }
    
    nav a {
        text-align: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .search-form {
        flex-direction: column;
    }
    
    .search-form .form-group {
        min-width: auto;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .staff-grid {
        grid-template-columns: 1fr;
    }
    
    .staff-actions {
        flex-direction: column;
    }
    
    .detail-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
        padding: 1.5rem;
    }
}

/* Table Zebra Striping */
tbody tr:nth-child(even) {
    background: var(--gray-50);
}

/* Focus Styles for Accessibility */
a:focus, .btn:focus, input:focus, select:focus, textarea:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Smooth Transitions */
a, .btn, .card, .detail-card, .stat-card, .guest-card, .form-group input, .form-group select, .form-group textarea {
    transition: all 0.2s cubic-bezier(.4,0,.2,1);
}

/* Card Hover Effect */
.card:hover, .detail-card:hover, .stat-card:hover, .guest-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px) scale(1.01);
}

/* Table Row Hover */
tbody tr:hover {
    background: var(--gray-100);
}

/* Mobile Optimization */
@media (max-width: 480px) {
    body {
        font-size: 13px;
    }
    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.8125rem;
    }
    .card,
    .detail-card {
        padding: 1rem;
    }
    .table-container {
        font-size: 0.8125rem;
    }
    th,
    td {
        padding: 0.75rem 0.5rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card,
.detail-card,
.staff-card,
.stat-card {
    animation: fadeIn 0.3s ease-out;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--gray-300);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Login Page Styles */
.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.login-container {
    width: 100%;
    max-width: 400px;
    animation: slideUp 0.6s ease-out;
}

.login-box {
    background: var(--white);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 2.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.login-header {
    margin-bottom: 2rem;
}

.login-header i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: block;
}

.login-header h1 {
    color: var(--gray-800);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--gray-600);
    font-size: 0.875rem;
    margin: 0;
}

.login-form {
    text-align: left;
}

.login-form .form-group {
    margin-bottom: 1.5rem;
}

.login-form label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-700);
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.login-form label i {
    color: var(--primary-color);
    width: 16px;
}

.login-form input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: all 0.2s ease;
    background: var(--white);
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    transform: translateY(-1px);
}

.login-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.login-btn:active {
    transform: translateY(0);
}

.login-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-200);
    font-size: 0.75rem;
    color: var(--gray-500);
}

.login-footer p {
    margin: 0.25rem 0;
}

.login-footer strong {
    color: var(--gray-700);
}

/* Login Animations */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Login Responsive */
@media (max-width: 480px) {
    .login-box {
        padding: 2rem 1.5rem;
    }
    
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .login-form input {
        padding: 0.75rem;
    }
    
    .login-btn {
        padding: 0.875rem;
    }
}