/* Hotel Management System - Responsive Design */

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #4c63d2;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-radius: 8px;
    --box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    min-height: 100vh;
    color: var(--dark-color);
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 20px;
    text-align: center;
    box-shadow: var(--box-shadow);
    position: relative;
}

.logo {
    max-width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid white;
    margin-bottom: 15px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    transition: var(--transition);
}

.logo:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.header h1 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

/* Navigation */
.nav {
    background: white;
    padding: 15px;
    box-shadow: var(--box-shadow);
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    position: relative;
}

.nav a {
    color: var(--dark-color);
    text-decoration: none;
    padding: 12px 20px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
    border: 2px solid transparent;
}

.nav a:hover, .nav a.active {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.3);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
    position: absolute;
    top: 15px;
    left: 15px;
    z-index: 1001;
    padding: 8px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    min-width: 44px;
    min-height: 44px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.mobile-menu-toggle:hover {
    background: var(--light-color);
    transform: scale(1.05);
}

.mobile-menu-toggle:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.nav.mobile-hidden {
    display: none !important;
}

.nav.mobile-visible {
    display: flex !important;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    box-shadow: var(--box-shadow);
    z-index: 1000;
    padding: 20px;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav.mobile-visible a {
    width: 100%;
    text-align: center;
    margin: 8px 0;
    padding: 15px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav.mobile-visible a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 20px;
}

/* Cards */
.card {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 20px;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark-color);
    font-weight: 600;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: var(--transition);
    background: 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 rgba(102, 126, 234, 0.1);
}

/* Buttons */
.btn {
    padding: 12px 30px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

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

/* Tables */
.table-container {
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow-x: auto;
    margin-bottom: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

th {
    background: var(--light-color);
    font-weight: 600;
    color: var(--dark-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

tr:hover {
    background: var(--light-color);
}

/* Logout Button */
.logout {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--danger-color);
    color: white;
    padding: 8px 15px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.logout:hover {
    background: #c82333;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(220, 53, 69, 0.3);
}

/* Search Box */
.search-box {
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 20px;
}

.search-box input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* File Upload */
.file-upload {
    border: 2px dashed var(--primary-color);
    padding: 20px;
    text-align: center;
    border-radius: var(--border-radius);
    transition: var(--transition);
    background: var(--light-color);
}

.file-upload:hover {
    border-color: var(--accent-color);
    background: white;
}

.image-preview {
    max-width: 200px;
    max-height: 150px;
    margin-top: 10px;
    border-radius: var(--border-radius);
    display: block;
    box-shadow: var(--box-shadow);
}

.camera-hint {
    background: #e3f2fd;
    padding: 10px;
    border-radius: var(--border-radius);
    margin-bottom: 10px;
    font-size: 14px;
    color: var(--accent-color);
    border-left: 4px solid var(--primary-color);
}

/* Progress Steps */
.progress {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    gap: 10px;
}

.step {
    flex: 1;
    text-align: center;
    padding: 15px 10px;
    background: var(--light-color);
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    border: 2px solid transparent;
}

.step.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--accent-color);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.3);
}

.step.completed {
    background: var(--success-color);
    color: white;
    border-color: #218838;
}

/* Messages */
.error-message {
    background: #fee;
    color: var(--danger-color);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    text-align: center;
    border-left: 4px solid var(--danger-color);
}

.success-message {
    background: #efe;
    color: var(--success-color);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    text-align: center;
    border-left: 4px solid var(--success-color);
}

/* Room Badges */
.room-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    background: var(--primary-color);
    color: white;
    display: inline-block;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    animation: fadeIn 0.3s;
}

.modal-content {
    margin: auto;
    display: block;
    width: 90%;
    max-width: 700px;
    margin-top: 50px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.close:hover {
    color: #bbb;
    transform: scale(1.1);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    display: block;
}

.stat-info h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-info p {
    color: var(--dark-color);
    font-weight: 500;
    margin: 0;
    font-size: 0.9rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .header {
        padding: 15px;
    }
    
    .logo {
        max-width: 80px;
        height: 80px;
        margin-bottom: 10px;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }
    
    .nav {
        padding: 10px;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        justify-content: center;
        gap: 5px;
    }
    
    .nav a {
        flex: 1 1 calc(50% - 10px);
        min-width: 120px;
        text-align: center;
        margin: 2px;
        padding: 12px 8px;
        font-size: 14px;
        border-radius: var(--border-radius);
        background: white;
        border: 1px solid var(--border-color);
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }
    
    .nav a:hover, .nav a.active {
        background: var(--primary-color);
        color: white;
        transform: translateY(-2px);
        box-shadow: 0 4px 8px rgba(102, 126, 234, 0.3);
    }
    
    .container {
        padding: 0 15px;
        margin: 15px auto;
    }
    
    .card {
        padding: 20px;
        margin-bottom: 15px;
    }
    
    .logout {
        position: static;
        display: block;
        width: 100%;
        text-align: center;
        margin-top: 10px;
    }
    
    .table-container {
        padding: 10px;
        overflow-x: scroll;
    }
    
    th, td {
        padding: 8px;
        font-size: 14px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 15px;
        margin: 15px 0;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .stat-icon {
        font-size: 2rem;
        margin-bottom: 10px;
    }
    
    .stat-info h3 {
        font-size: 2rem;
    }
    
    .stat-info p {
        font-size: 0.8rem;
    }
    
    .progress {
        flex-direction: column;
        gap: 5px;
    }
    
    .step {
        margin-bottom: 5px;
    }
    
    .btn {
        width: 100%;
        padding: 15px;
        font-size: 18px;
    }
}

/* Tablet Responsive */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        max-width: 95%;
    }
    
    .card {
        padding: 25px;
    }
    
    .nav {
        padding: 12px;
    }
    
    .nav a {
        padding: 10px 15px;
        font-size: 14px;
    }
}

/* Large Desktop */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
    }
}