:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --border: #30363d;
    --accent: #58a6ff;
    --accent-hover: #79c0ff;
    --status-online: #3fb950;
    --status-offline: #f85149;
    --status-unknown: #8b949e;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
}

.logout-btn {
    position: absolute;
    top: 0;
    right: 0;
    padding: 0.5rem 1rem;
    width: auto !important;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.category-section {
    margin-bottom: 3rem;
}

.category-header {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border);
    color: var(--text-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    transition: all 0.2s ease;
    text-decoration: none;
    color: inherit;
    display: block;
    position: relative;
}

.service-card:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.service-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.delete-btn {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: all 0.2s ease;
    color: var(--text-muted);
    z-index: 10;
}

.delete-btn:hover {
    background: #f85149;
    border-color: #f85149;
    color: white;
}

.delete-btn svg {
    width: 16px;
    height: 16px;
}

.service-card:hover .delete-btn {
    opacity: 1;
}

.service-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.service-icon {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
}

.service-icon svg {
    width: 24px;
    height: 24px;
}

.service-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.service-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.service-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.service-url {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-family: 'Courier New', monospace;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--status-unknown);
}

.status-indicator.online {
    background: var(--status-online);
    box-shadow: 0 0 8px var(--status-online);
}

.status-indicator.offline {
    background: var(--status-offline);
    box-shadow: 0 0 8px var(--status-offline);
}

footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Floating Action Button */
.fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--accent);
    border: none;
    color: white;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(88, 166, 255, 0.4);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.fab:hover {
    background: var(--accent-hover);
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(88, 166, 255, 0.6);
}

.fab svg {
    width: 24px;
    height: 24px;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: all 0.2s ease;
}

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

.close-btn svg {
    width: 20px;
    height: 20px;
}

/* Form */
form {
    padding: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.form-group small a {
    color: var(--accent);
    text-decoration: none;
}

.form-group small a:hover {
    text-decoration: underline;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    border: none;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

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

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

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

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    header {
        padding-top: 3rem;
    }

    header h1 {
        font-size: 2rem;
    }

    .logout-btn {
        top: 0.5rem;
        right: 0.5rem;
        padding: 0.4rem 0.8rem !important;
        font-size: 0.875rem;
        width: auto !important;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .fab {
        bottom: 1rem;
        right: 1rem;
    }
    
    .modal-content {
        width: 95%;
        max-height: 95vh;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

/* Loading state */
.loading {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

/* User management styles */
.user-section {
    max-width: 600px;
    margin: 0 auto;
}

.user-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
}

.user-card h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.error-message {
    background: rgba(248, 81, 73, 0.1);
    border: 1px solid #f85149;
    color: #f85149;
    padding: 0.75rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}

.success-message {
    background: rgba(63, 185, 80, 0.1);
    border: 1px solid #3fb950;
    color: #3fb950;
    padding: 0.75rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}