:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-hover: #e8e8e8;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --border-color: #e0e0e0;
    --accent-color: #0066cc;
    --accent-hover: #0052a3;
    --danger-color: #dc3545;
    --success-color: #28a745;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --bg-hover: #3d3d3d;
        --text-primary: #ffffff;
        --text-secondary: #a0a0a0;
        --border-color: #404040;
        --accent-color: #4da6ff;
        --accent-hover: #66b3ff;
    }
}

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

body {
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu,
        sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
}

.container {
    max-width: 560px;
    margin: 0 auto;
    padding: 24px;
}

h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

h2 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.section {
    margin-bottom: 32px;
}

.preset-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
}

.preset-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.preset-card:hover {
    background: var(--bg-hover);
}

.preset-card.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
}

.preset-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.preset-name {
    font-weight: 600;
    font-size: 15px;
}

.preset-badge {
    background: var(--accent-color);
    color: white;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
}

.preset-info {
    font-size: 13px;
    color: var(--text-secondary);
}

.preset-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}

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

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

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

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

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

.btn-danger:hover {
    opacity: 0.9;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.empty-state p {
    margin-bottom: 16px;
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 100;
    align-items: center;
    justify-content: center;
}

.modal-overlay.show {
    display: flex;
}

.modal {
    background: var(--bg-primary);
    border-radius: 12px;
    width: 90%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 6px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.2);
}

.form-group .hint {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: var(--bg-primary);
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    z-index: 200;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.toast.show {
    opacity: 1;
}

.toast.success {
    background: var(--success-color);
    color: white;
}

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

/* Inline style replacements */
.delete-warning {
    color: var(--text-secondary);
    margin-top: 8px;
    font-size: 14px;
}