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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
}

/* Layout */
.container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: #2c3e50;
    color: white;
    padding: 20px;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar h1 {
    font-size: 24px;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid #34495e;
}

/* Logo Container */
.logo-container {
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid #34495e;
    text-align: center;
}

.app-logo {
    width: 100%;
    max-width: 180px;
    height: auto;
}


.sidebar nav ul {
    list-style: none;
}

.sidebar nav li {
    margin-bottom: 10px;
}

.sidebar nav a {
    display: block;
    color: #ecf0f1;
    text-decoration: none;
    padding: 10px 15px;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.sidebar nav a:hover,
.sidebar nav a.active {
    background-color: #34495e;
}

.logout-link {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #34495e;
}

/* Main Content */
.main-content {
    margin-left: 250px;
    padding: 30px;
    flex: 1;
}

.content-header {
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.content-header h2 {
    font-size: 28px;
    color: #2c3e50;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    font-size: 14px;
    transition: background-color 0.3s;
}

.btn-primary {
    background-color: #3498db;
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-success {
    background-color: #2ecc71;
    color: white;
}

.btn-success:hover {
    background-color: #27ae60;
}

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

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

.btn-secondary {
    background-color: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

.btn-small {
    padding: 5px 10px;
    font-size: 12px;
}

/* Tables */
.table-container {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background-color: #34495e;
    color: white;
}

th, td {
    padding: 12px 15px;
    text-align: left;
}

tbody tr {
    border-bottom: 1px solid #ecf0f1;
    transition: background-color 0.2s;
}

tbody tr:hover {
    background-color: #f8f9fa;
    cursor: pointer;
}

tbody tr:last-child {
    border-bottom: none;
}

/* Forms */
.form-container {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 30px;
    max-width: 800px;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #3498db;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 30px;
}

.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-right: 10px;
}

/* Login Page */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-box {
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
}

/* Alerts */
.alert {
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-error {
    background-color: #fee;
    color: #c00;
    border: 1px solid #fcc;
}

.alert-success {
    background-color: #efe;
    color: #0a0;
    border: 1px solid #cfc;
}

/* Cards */
.card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 20px;
    margin-bottom: 20px;
}

.card h3 {
    margin-bottom: 15px;
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
}

/* Detail View */
.detail-section {
    margin-bottom: 30px;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.detail-item label {
    display: block;
    font-weight: 600;
    color: #7f8c8d;
    font-size: 12px;
    text-transform: uppercase;
    margin-bottom: 5px;
}

.detail-item p {
    color: #2c3e50;
    font-size: 16px;
}

/* Dashboard */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.dashboard-card {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.dashboard-card h3 {
    font-size: 18px;
    color: #7f8c8d;
    margin-bottom: 10px;
}

.dashboard-card .number {
    font-size: 48px;
    font-weight: bold;
    color: #3498db;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 200px;
    }
    
    .main-content {
        margin-left: 200px;
    }
}

@media (max-width: 576px) {
    .sidebar {
        width: 100%;
        position: relative;
        height: auto;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid #dfe6e9;
}

.tab-link {
    padding: 10px 24px;
    text-decoration: none;
    color: #636e72;
    font-weight: 500;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: color 0.2s, border-color 0.2s;
}

.tab-link:hover {
    color: #2d3436;
}

.tab-link.active {
    color: #2980b9;
    border-bottom-color: #2980b9;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-success {
    background-color: #d5f5e3;
    color: #1e8449;
}

.badge-warning {
    background-color: #fdebd0;
    color: #935116;
}