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

/* Login Gate */
.login-gate {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--bg);
}

.login-gate.hidden {
    display: none;
}

.login-box {
    background: var(--surface);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    width: 100%;
    max-width: 360px;
    text-align: center;
}

.login-box h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.login-box > p {
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 0.875rem;
}

.login-box .form-group {
    margin-bottom: 16px;
    text-align: left;
}

.login-box input {
    text-align: center;
}

.login-error {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 12px;
}

.login-error.hidden {
    display: none;
}

:root {
    --bg: #fafafa;
    --surface: #ffffff;
    --border: #e5e5e5;
    --text: #1a1a1a;
    --text-muted: #737373;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #16a34a;
    --error: #dc2626;
    --danger: #dc2626;
    --danger-hover: #b91c1c;
    --warning: #d97706;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}

.app {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
}

.header h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.15s ease;
}

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

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

.btn-primary:disabled {
    background: #93c5fd;
    cursor: not-allowed;
}

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

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

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

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

.btn-danger:disabled {
    background: #fca5a5;
    cursor: not-allowed;
}

.btn-icon {
    background: none;
    border: none;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.15s ease;
}

.btn-icon:hover {
    background: var(--bg);
    color: var(--text);
}

.btn-icon-small {
    background: none;
    border: none;
    padding: 6px;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

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

.delete-btn:hover {
    color: var(--danger);
}

.full-width {
    width: 100%;
    justify-content: center;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 100;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--surface);
    border-radius: 12px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.modal-large {
    max-width: 600px;
}

.modal-small {
    max-width: 360px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 1rem;
    font-weight: 600;
}

.modal-body {
    padding: 20px;
}

.modal-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 20px;
}

/* Form */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.875rem;
    font-family: inherit;
    transition: border-color 0.15s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group input:disabled {
    background: var(--bg);
    color: var(--text-muted);
}

.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.875rem;
    font-family: inherit;
    background: var(--surface);
    cursor: pointer;
}

.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.input-with-toggle {
    position: relative;
    display: flex;
    align-items: center;
}

.input-with-toggle input {
    padding-right: 40px;
}

.input-with-toggle .btn-icon-small {
    position: absolute;
    right: 8px;
}

.hint {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.security-note {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* Status Bar */
.status-bar {
    padding: 12px 16px;
    border-radius: 8px;
    margin: 20px 0;
    font-size: 0.875rem;
}

.status-bar.hidden {
    display: none;
}

.status-bar.success {
    background: #dcfce7;
    color: var(--success);
}

.status-bar.error {
    background: #fee2e2;
    color: var(--error);
}

.status-bar.info {
    background: #dbeafe;
    color: var(--primary);
}

/* Actions Bar */
.actions-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    gap: 12px;
}

.actions-bar.hidden {
    display: none;
}

.actions-left,
.actions-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.value-count {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Search Bar */
.search-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 16px;
}

.search-bar.hidden {
    display: none;
}

.search-bar svg {
    color: var(--text-muted);
    flex-shrink: 0;
}

.search-bar input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 0.875rem;
    background: transparent;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state.hidden {
    display: none;
}

.empty-state svg {
    color: var(--text-muted);
    margin-bottom: 16px;
}

.empty-state h2 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--text-muted);
    margin-bottom: 20px;
}

/* Values List */
.values-list {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.values-list.hidden {
    display: none;
}

.list-header {
    display: grid;
    grid-template-columns: 32px 1fr 1fr 0.8fr 1.5fr 80px;
    gap: 16px;
    padding: 12px 16px;
    background: var(--bg);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.value-row {
    display: grid;
    grid-template-columns: 32px 1fr 1fr 0.8fr 1.5fr 80px;
    gap: 16px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 0.875rem;
    align-items: center;
}

.value-row:last-child {
    border-bottom: none;
}

.value-row:hover {
    background: var(--bg);
}

.value-row .col-key {
    color: var(--text-muted);
    font-family: monospace;
    font-size: 0.8125rem;
}

.value-row .col-folder,
.col-folder {
    color: var(--text-muted);
    font-size: 0.8125rem;
}

.value-row .col-value {
    word-break: break-word;
}

.value-row .col-actions {
    display: flex;
    gap: 4px;
    justify-content: flex-end;
}

.no-results {
    padding: 40px 20px;
    text-align: center;
    color: var(--text-muted);
}

/* Bulk Actions Bar */
.bulk-actions-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 16px;
}

.bulk-actions-bar.hidden {
    display: none;
}

.bulk-actions-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.bulk-actions-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.bulk-checkbox {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary);
}

.select-all-label {
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    user-select: none;
}

.selected-count {
    font-size: 0.875rem;
    color: var(--text-muted);
    padding-left: 12px;
    border-left: 1px solid var(--border);
}

.col-checkbox {
    display: flex;
    align-items: center;
    justify-content: center;
}

.row-checkbox {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary);
}

.value-row:has(.row-checkbox:checked) {
    background: #eff6ff;
}

/* Loading */
.loading {
    text-align: center;
    padding: 60px 20px;
}

.loading.hidden {
    display: none;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    margin: 0 auto 16px;
    animation: spin 0.8s linear infinite;
}

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

.loading p {
    color: var(--text-muted);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    background: var(--bg);
    padding: 4px;
    border-radius: 8px;
}

.tab {
    flex: 1;
    padding: 8px 16px;
    border: none;
    background: none;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.15s ease;
}

.tab.active {
    background: var(--surface);
    color: var(--text);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.tab-content {
    display: none;
}

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

.tab-hint {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.tab-hint code {
    background: var(--bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.8125rem;
}

textarea {
    width: 100%;
    height: 160px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: monospace;
    font-size: 0.8125rem;
    resize: vertical;
}

textarea:focus {
    outline: none;
    border-color: var(--primary);
}

/* File Upload */
.file-upload {
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    transition: all 0.15s ease;
}

.file-upload.dragover {
    border-color: var(--primary);
    background: #eff6ff;
}

.file-upload svg {
    color: var(--text-muted);
    margin-bottom: 12px;
}

.file-upload p {
    margin-bottom: 8px;
}

.file-upload span {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.file-upload label {
    margin-top: 12px;
}

.file-name {
    margin-top: 12px;
    font-size: 0.875rem;
    color: var(--success);
}

.file-name.hidden {
    display: none;
}

/* Import Preview */
.import-preview {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.import-preview.hidden {
    display: none;
}

.import-preview h3 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 12px;
}

#previewList {
    max-height: 200px;
    overflow-y: auto;
    background: var(--bg);
    border-radius: 8px;
    padding: 8px;
}

.preview-header {
    display: grid;
    grid-template-columns: 1fr 1fr 0.8fr 1.2fr;
    gap: 8px;
    padding: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.preview-item {
    display: grid;
    grid-template-columns: 1fr 1fr 0.8fr 1.2fr;
    gap: 8px;
    padding: 8px;
    font-size: 0.8125rem;
    border-bottom: 1px solid var(--border);
}

.preview-item:last-child {
    border-bottom: none;
}

.preview-item span:nth-child(2) {
    font-family: monospace;
    color: var(--text-muted);
}

.preview-folder {
    color: var(--text-muted);
    font-style: italic;
}

/* Import options */
.import-options {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.import-options .form-group {
    margin-bottom: 0;
}

.import-options select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.875rem;
    font-family: inherit;
    background: var(--surface);
    cursor: pointer;
}

.import-options select:focus {
    outline: none;
    border-color: var(--primary);
}

/* Progress */
.progress-bar {
    height: 8px;
    background: var(--bg);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 12px;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

#progressText {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.progress-log {
    max-height: 150px;
    overflow-y: auto;
    font-size: 0.75rem;
    font-family: monospace;
    background: var(--bg);
    border-radius: 8px;
    padding: 12px;
}

.progress-log .success {
    color: var(--success);
}

.progress-log .error {
    color: var(--error);
}

.progress-log p {
    margin-bottom: 4px;
}

/* Responsive */
@media (max-width: 700px) {
    .actions-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .actions-left,
    .actions-right {
        justify-content: space-between;
    }

    .bulk-actions-bar {
        flex-direction: column;
        gap: 12px;
    }

    .bulk-actions-left,
    .bulk-actions-right {
        width: 100%;
        justify-content: space-between;
    }

    .list-header {
        display: none;
    }

    .value-row {
        grid-template-columns: 32px 1fr auto;
        gap: 8px;
    }

    .value-row .col-checkbox {
        grid-column: 1;
        grid-row: 1 / 3;
        align-self: start;
        padding-top: 2px;
    }

    .value-row .col-name {
        font-weight: 500;
        grid-column: 2;
    }

    .value-row .col-actions {
        grid-column: 3;
        grid-row: 1 / 3;
        align-items: center;
    }

    .value-row .col-key {
        grid-column: 2;
        font-size: 0.75rem;
    }

    .value-row .col-key::before {
        content: 'Key: ';
        color: var(--text);
        font-family: inherit;
    }

    .value-row .col-folder {
        grid-column: 2;
        font-size: 0.75rem;
    }

    .value-row .col-folder:not(:empty)::before {
        content: 'Folder: ';
        color: var(--text);
        font-family: inherit;
    }

    .value-row .col-value {
        grid-column: 2 / 4;
        padding-top: 4px;
        border-top: 1px dashed var(--border);
        margin-top: 4px;
    }

    .value-row .col-value:empty {
        display: none;
    }

    .preview-header {
        display: none;
    }

    .preview-item {
        grid-template-columns: 1fr;
        gap: 4px;
    }
}