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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

/* Navigation */
.navbar {
    background-color: #2c3e50;
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-menu {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.nav-menu a:hover {
    background-color: rgba(255,255,255,0.1);
}

/* Admin Dropdown Menu */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.nav-dropdown-toggle {
    cursor: pointer;
}

.dropdown-arrow {
    font-size: 0.7rem;
    margin-left: 0.25rem;
}

.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #34495e;
    min-width: 180px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
    z-index: 1000;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 0.25rem;
}

.nav-dropdown:hover .nav-dropdown-menu {
    display: block;
}

.nav-dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: white;
    text-decoration: none;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    transition: background-color 0.3s;
}

.nav-dropdown-menu a:last-child {
    border-bottom: none;
}

.nav-dropdown-menu a:hover {
    background-color: rgba(255,255,255,0.15);
}

.user-info {
    color: #ecf0f1;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
    min-height: calc(100vh - 200px);
}

/* Flash Messages */
.flash-messages {
    margin-bottom: 1rem;
}

.flash-message {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

.flash-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.flash-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.flash-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    font-size: 1rem;
    transition: background-color 0.3s;
}

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

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

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

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

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

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

.form-actions {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
}

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

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

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

table th {
    background-color: #f8f9fa;
    font-weight: 600;
}

table tr:hover {
    background-color: #f8f9fa;
}

/* Cards */
.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #ddd;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
}

/* Login Page */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 200px);
}

.login-box {
    background: white;
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    text-align: center;
    max-width: 400px;
}

.login-box h1 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.login-box p {
    margin-bottom: 2rem;
    color: #7f8c8d;
}

/* Dashboard Viewer */
.dashboard-container {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
}

.sidebar {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 1.5rem;
    height: fit-content;
}

.sidebar h3 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.group-tree {
    list-style: none;
}

.group-tree li {
    margin-bottom: 0.5rem;
}

.group-tree a {
    display: block;
    padding: 0.75rem;
    color: #333;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.group-tree a:hover,
.group-tree a.active {
    background-color: #ecf0f1;
}

.group-tree .child {
    margin-left: 1.5rem;
    margin-top: 0.25rem;
}

.report-container {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 1.5rem;
}

.report-header {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #ddd;
}

.report-header h2 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.report-description {
    color: #7f8c8d;
}

.report-iframe-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 75%; /* 4:3 aspect ratio */
    height: 0;
    overflow: hidden;
}

.report-iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Admin Pages */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.admin-header h1 {
    color: #2c3e50;
}

/* Footer */
.footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-container {
        grid-template-columns: 1fr;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .main-content {
        padding: 0 1rem;
    }
}