/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4a9eff;
    --primary-dark: #3a7ed0;
    --secondary-color: #6cb4ff;
    --success-color: #4caf50;
    --danger-color: #f44336;
    --warning-color: #ff9800;
    --bg-primary: #0a0e27;
    --bg-secondary: #151932;
    --bg-tertiary: #1e2542;
    --text-primary: #ffffff;
    --text-secondary: #b8c5d6;
    --border-color: #2a3451;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* Screen Management */
.screen {
    display: none;
}

.screen.active {
    display: block;
}

/* Login Screen */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-card {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    max-width: 450px;
    width: 100%;
    border: 1px solid var(--border-color);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header h1 {
    font-size: 2rem;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.auth-form h2 {
    margin-bottom: 24px;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.auth-switch {
    text-align: center;
    margin-top: 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.auth-switch a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.auth-switch a:hover {
    text-decoration: underline;
}

.error-message {
    margin-top: 16px;
    padding: 12px;
    background: rgba(244, 67, 54, 0.1);
    border: 1px solid var(--danger-color);
    border-radius: 8px;
    color: var(--danger-color);
    font-size: 0.9rem;
    display: none;
}

.error-message.active {
    display: block;
}

/* Navigation */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    box-shadow: var(--shadow);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--primary-color);
    background: rgba(74, 158, 255, 0.1);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-email {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Main Content */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 32px 24px;
}

.page {
    display: none;
}

.page.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-header h1 {
    font-size: 2rem;
    color: var(--text-primary);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--success-color);
    font-size: 0.9rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Section */
.section {
    margin-bottom: 40px;
}

.section h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

/* Alerts List */
.alerts-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.alert-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s ease;
}

.alert-item:hover {
    border-left-color: var(--secondary-color);
    box-shadow: var(--shadow);
}

.alert-item h3 {
    color: var(--primary-color);
    margin-bottom: 8px;
    font-size: 1.2rem;
}

.alert-details {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Form Styles */
.form-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
    box-shadow: var(--shadow);
    max-width: 800px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group-full {
    grid-column: 1 / -1;
}

.form-group label {
    color: var(--text-primary);
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.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(74, 158, 255, 0.1);
}

.form-group small {
    margin-top: 4px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.form-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

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

.btn-danger:hover {
    background: #d32f2f;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9rem;
}

/* Alerts Grid */
.alerts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}

.alert-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.alert-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.alert-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 16px;
}

.alert-card-title {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.alert-status {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.alert-status.active {
    background: rgba(76, 175, 80, 0.2);
    color: var(--success-color);
}

.alert-status.inactive {
    background: rgba(158, 158, 158, 0.2);
    color: #9e9e9e;
}

.alert-card-body {
    color: var(--text-secondary);
    line-height: 1.8;
}

.alert-card-body p {
    margin-bottom: 8px;
}

.alert-card-footer {
    margin-top: 20px;
    display: flex;
    gap: 8px;
}

/* Map */
.map-container {
    height: 600px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.map-legend {
    margin-top: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    max-width: 300px;
}

.map-legend h3 {
    margin-bottom: 12px;
    color: var(--text-primary);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.legend-marker {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid white;
}

.legend-marker.active {
    background: var(--primary-color);
}

.legend-marker.inactive {
    background: #9e9e9e;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 32px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.modal-header h2 {
    color: var(--text-primary);
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.3s ease;
}

.close-btn:hover {
    color: var(--text-primary);
}

/* Loading */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .nav-links {
        flex-direction: column;
    }
    
    .nav-user {
        flex-direction: column;
        align-items: stretch;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .alerts-grid {
        grid-template-columns: 1fr;
    }
    
    .map-container {
        height: 400px;
    }
}

/* Leaflet popup customization */
.leaflet-popup-content-wrapper {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 8px;
}

.leaflet-popup-tip {
    background: var(--bg-secondary);
}

/* Settings Page Styles */
.section {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.section:last-child {
    border-bottom: none;
}

.section h2 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.section-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

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

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-primary);
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.2s;
}

.checkbox-label:hover {
    background: rgba(74, 158, 255, 0.1);
    border-color: var(--primary-color);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 12px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.checkbox-label span {
    font-weight: 500;
}

.checkbox-group small {
    display: block;
    margin-top: 8px;
    margin-left: 32px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.settings-message {
    display: none;
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
}

.settings-message.success {
    background: rgba(76, 175, 80, 0.15);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

.settings-message.error {
    background: rgba(244, 67, 54, 0.15);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
}

.form-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}