:root {
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --secondary: #6b7280;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --background: #ffffff;
    --surface: #f9fafb;
    --border: #e5e7eb;
    --text: #111827;
    --text-secondary: #6b7280;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

html, body {
    width: 400px;
    height: 550px;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text);
    background: var(--background);
    overflow: hidden;
}

header {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
}

#sync-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-secondary);
}

#sync-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--secondary);
}

#sync-indicator.syncing {
    background: var(--warning);
    animation: pulse 1.5s infinite;
}

#sync-indicator.synced {
    background: var(--success);
}

#sync-indicator.error {
    background: var(--error);
}

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

/* Tabs */
#tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.tab {
    flex: 1;
    padding: 8px;
    border: none;
    background: none;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.tab:hover {
    color: var(--text);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
    overflow-y: auto;
    height: calc(100% - 120px);
}

.tab-content.active {
    display: block;
}

/* Sections */
section {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}

h2 {
    font-size: 12px;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Forms */
.form-group {
    margin-bottom: 10px;
}

.form-group label {
    display: block;
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 3px;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 7px 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 12px;
    background: var(--background);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15);
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

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

/* Buttons */
button {
    padding: 7px 14px;
    border: none;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    font-family: inherit;
}

#submit-btn {
    width: 100%;
    background: var(--primary);
    color: white;
}

#submit-btn:hover {
    background: var(--primary-hover);
}

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

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

.btn-small {
    padding: 5px 10px;
    font-size: 11px;
    background: var(--surface);
    border: 1px solid var(--border);
}

.btn-small:hover {
    background: var(--border);
}

/* Search */
#search-filter {
    margin-bottom: 8px;
}

#search {
    width: 100%;
    padding: 7px 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 12px;
}

/* Bookmark items */
.bookmark-item {
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    margin-bottom: 6px;
    background: var(--surface);
    cursor: pointer;
    transition: border-color 0.2s;
}

.bookmark-item:hover {
    border-color: var(--primary);
}

.bookmark-item a {
    display: block;
    color: var(--primary);
    text-decoration: none;
    font-size: 11px;
    word-break: break-all;
    margin-bottom: 2px;
}

.bookmark-item a:hover {
    text-decoration: underline;
}

.bookmark-item .bm-title {
    font-weight: 500;
    font-size: 12px;
    margin-bottom: 2px;
}

.bookmark-item .bm-desc {
    font-size: 11px;
    color: var(--text-secondary);
}

.bookmark-item .bm-tags {
    margin-top: 4px;
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
}

.bookmark-item .bm-tag {
    font-size: 10px;
    padding: 1px 5px;
    background: var(--border);
    border-radius: 3px;
    color: var(--text-secondary);
}

/* Collection items */
.collection-item {
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    margin-bottom: 6px;
    background: var(--surface);
}

.collection-item h3 {
    font-size: 12px;
    margin-bottom: 2px;
}

.collection-item p {
    font-size: 11px;
    color: var(--text-secondary);
}

.collection-item .col-type {
    font-size: 10px;
    color: var(--primary);
    font-weight: 500;
}

/* Query panel */
.query-actions {
    display: flex;
    gap: 6px;
    margin-bottom: 8px;
}

#query-result {
    padding: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 11px;
    max-height: 120px;
    overflow-y: auto;
    margin-bottom: 8px;
}

.query-help {
    font-size: 10px;
    color: var(--text-secondary);
    padding: 6px;
    background: var(--surface);
    border-radius: 4px;
}

.query-help code {
    background: var(--border);
    padding: 1px 4px;
    border-radius: 2px;
    font-size: 10px;
}

/* Footer */
footer {
    padding: 8px 12px;
    background: var(--surface);
    border-top: 1px solid var(--border);
    display: flex;
    gap: 8px;
}

footer button {
    flex: 1;
    padding: 8px;
    background: var(--background);
    border: 1px solid var(--border);
    color: var(--text);
}

footer button:hover {
    background: var(--border);
}

#sync-btn {
    position: relative;
}

/* Notifications */
#notification-container {
    position: fixed;
    top: 50px;
    left: 12px;
    right: 12px;
    z-index: 100;
    pointer-events: none;
}

.notification {
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 12px;
    margin-bottom: 4px;
    animation: slideIn 0.3s ease;
    pointer-events: auto;
}

.notification.success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.notification.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.notification.info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

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

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

.modal.open {
    display: flex;
}

.modal-content {
    background: var(--background);
    border-radius: 8px;
    width: 360px;
    max-height: 500px;
    overflow-y: auto;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.modal-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 14px;
    color: var(--text);
    text-transform: none;
    letter-spacing: normal;
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    line-height: 1;
}

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

#settings-form {
    padding: 16px;
}

.input-with-toggle {
    display: flex;
    gap: 4px;
}

.input-with-toggle input {
    flex: 1;
}

.toggle-btn {
    padding: 7px 8px;
    font-size: 11px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    white-space: nowrap;
}

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

.settings-actions button {
    flex: 1;
}

/* Empty state */
.empty-state {
    text-align: center;
    color: var(--text-secondary);
    font-size: 12px;
    padding: 20px;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--surface);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}