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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Authentication Section */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.auth-card {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    text-align: center;
    max-width: 400px;
    width: 100%;
}

.auth-card h1 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: #2c3e50;
}

.auth-card p {
    color: #7f8c8d;
    margin-bottom: 30px;
    font-size: 1rem;
}

/* Authentication Method Selector */
.auth-mode-selector {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 2px solid #e9ecef;
}

.auth-method-btn {
    flex: 1;
    padding: 12px 16px;
    background: none;
    border: none;
    color: #6c757d;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
}

.auth-method-btn.active {
    color: #667eea;
    border-bottom-color: #667eea;
}

.auth-method-btn:hover:not(.active) {
    color: #495057;
}

/* Authentication Forms */
.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

.auth-form input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    margin-bottom: 12px;
    transition: border-color 0.3s ease;
}

.auth-form input:focus {
    outline: none;
    border-color: #667eea;
}

.auth-form input::placeholder {
    color: #adb5bd;
}

.auth-toggle {
    text-align: center;
    margin-top: 20px;
    color: #6c757d;
    font-size: 0.9rem;
}

.link-btn {
    background: none;
    border: none;
    color: #667eea;
    cursor: pointer;
    font-weight: 500;
    text-decoration: underline;
    padding: 0;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.link-btn:hover {
    color: #5a67d8;
}

/* Auth Error Message */
.auth-error {
    margin-top: 20px;
    padding: 12px 16px;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 8px;
    color: #721c24;
    font-size: 0.9rem;
}

.auth-error.auth-info {
    background-color: #dbeafe;
    border-color: #bfdbfe;
    color: #1e3a8a;
}

.tos-box {
    text-align: left;
    margin: 6px 0 10px;
    padding: 12px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    max-height: 180px;
    overflow: auto;
    background: #f8fafc;
    font-size: 0.85rem;
    color: #334155;
}

.tos-box h3 {
    font-size: 0.9rem;
    margin: 0 0 6px;
    color: #1e293b;
}

.tos-box p {
    margin: 0 0 8px;
    font-size: 0.85rem;
    color: #475569;
}

.tos-box ul {
    margin: 0 0 8px 18px;
    padding: 0;
}

.tos-contact {
    margin-bottom: 0;
    font-weight: 600;
}

.tos-contact a {
    color: #334155;
}

.tos-contact a:hover {
    color: #1d4ed8;
}

.tos-agree-row {
    display: grid;
    grid-template-columns: 18px 1fr;
    align-items: start;
    column-gap: 12px;
    text-align: left;
    margin: 10px 0 10px;
    font-size: 1rem;
    line-height: 1.35;
    color: #334155;
    cursor: pointer;
}

.tos-agree-row input {
    margin-top: 3px;
    width: 16px;
    height: 16px;
}

#sign-up-email-btn {
    margin-top: 4px;
    margin-bottom: 8px;
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    filter: grayscale(0.15);
}

/* App Container */
.app-container {
    min-height: 100vh;
    background-color: #f8f9fa;
}

.app-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.app-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 0.9rem;
}

/* Lists Navigation */
.lists-nav {
    background: white;
    border-bottom: 1px solid #e9ecef;
    padding: 15px 20px;
}

.lists-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.lists-header h2 {
    font-size: 1.1rem;
    color: #2c3e50;
    font-weight: 600;
}

.lists-tabs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 5px;
}

.list-tab {
    flex-shrink: 0;
    padding: 8px 16px;
    border: 2px solid #e9ecef;
    border-radius: 20px;
    background: white;
    color: #6c757d;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    position: relative;
}

.list-tab.active {
    border-color: #667eea;
    background: #667eea;
    color: white;
}

.list-tab:hover:not(.active) {
    border-color: #667eea;
    color: #667eea;
}

.list-tab.shared {
    border-color: #28a745;
}

.list-tab.shared.active {
    background: #28a745;
}

.list-tab .shared-indicator {
    font-size: 0.7rem;
    margin-left: 4px;
}

/* No List Selected State */
.no-list-state {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 360px;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 24px 20px 36px;
}

.empty-state {
    text-align: center;
    width: 100%;
    max-width: 560px;
    background: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    padding: 32px 24px;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #2c3e50;
}

.empty-state p {
    color: #6c757d;
    margin-bottom: 24px;
    font-size: 1rem;
}

.empty-state .btn-primary {
    display: inline-flex;
    margin: 0 auto;
}

/* Active List Container */
.active-list {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.list-header {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.list-title-section h2 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 5px;
}

.item-count {
    color: #6c757d;
    font-size: 0.9rem;
}

.list-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* Add Item Section */
.add-item-section {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 20px;
}

.add-item-form {
    display: flex;
    gap: 10px;
}

#new-item-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

#new-item-input:focus {
    outline: none;
    border-color: #667eea;
}

.btn-add {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 50%;
    background: #667eea;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-add:hover {
    background: #5a67d8;
    transform: scale(1.05);
}

/* Items Container */
.items-container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    overflow: hidden;
}

.items-section {
    padding: 0;
}

/* Visual Separator for Checked Items */
.items-checked {
    border-top: 2px solid #e9ecef;
    margin-top: 8px;
    position: relative;
}

.items-checked::before {
    content: "✅ Completed Items";
    position: absolute;
    top: -15px;
    left: 20px;
    background: white;
    padding: 0 12px;
    font-size: 0.75rem;
    color: #6c757d;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Item Styles */
.item {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid #f1f3f4;
    cursor: pointer;
    transition: background-color 0.2s ease;
    position: relative;
}

.item:hover {
    background-color: #f8f9fa;
}

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

.item-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid #dee2e6;
    border-radius: 4px;
    margin-right: 16px;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.item-checkbox.checked {
    background-color: #28a745;
    border-color: #28a745;
}

.item-checkbox.checked::after {
    content: '✓';
    color: white;
    position: absolute;
    top: -2px;
    left: 3px;
    font-size: 14px;
    font-weight: bold;
}


/* Larger left-side drag handle for easier mobile reordering */
.drag-handle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    margin-right: 12px;
    border-radius: 8px;
    color: #64748b;
    font-size: 1.2rem;
    line-height: 1;
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
    touch-action: none;
    flex-shrink: 0;
}

.drag-handle:active {
    cursor: grabbing;
    background: rgba(0,0,0,0.06);
}

.item-text {
    flex: 1;
    font-size: 1rem;
    color: #2c3e50;
    user-select: none;
}

.item.checked .item-text {
    color: #6c757d;
    text-decoration: line-through;
}

.item-actions {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.item:hover .item-actions {
    opacity: 1;
}

.item-menu-btn {
    background: none;
    border: none;
    color: #6c757d;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.item-menu-btn:hover {
    background-color: #e9ecef;
    color: #495057;
}

/* Edit Mode Styles */
.edit-mode .item-checkbox {
    display: none;
}

.edit-mode .item-actions {
    display: none;
}

.item-text-input {
    flex: 1;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    padding: 8px 12px;
    font-size: 1rem;
    background: white;
    transition: border-color 0.3s ease;
}

.item-text-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.add-item-input {
    display: flex;
    padding: 16px 20px;
    background-color: #f8f9fa;
    border-top: 2px dashed #dee2e6;
    margin-top: 8px;
}

.add-item-input input {
    flex: 1;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    padding: 8px 12px;
    font-size: 1rem;
}

.add-item-input input:focus {
    outline: none;
    border-color: #667eea;
}

.add-item-input::before {
    content: "➕";
    margin-right: 12px;
    color: #667eea;
    font-size: 1.1rem;
    align-self: center;
}

/* Buttons */
.btn-primary {
    background: #667eea;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary:hover {
    background: #5a67d8;
    transform: translateY(-1px);
}

.btn-secondary {
    background: #6c757d;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-create {
    background: #28a745;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-create:hover {
    background: #218838;
    transform: scale(1.05);
}

.btn-edit, .btn-save, .btn-cancel {
    background: #667eea;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-edit:hover {
    background: #5a67d8;
}

.btn-save {
    background: #28a745;
}

.btn-save:hover {
    background: #218838;
}

.btn-cancel {
    background: #6c757d;
}

.btn-cancel:hover {
    background: #5a6268;
}

.btn-options {
    background: none;
    border: none;
    color: #6c757d;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.btn-options:hover {
    background-color: #e9ecef;
    color: #495057;
}

.btn-icon {
    font-size: 1.1rem;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    max-width: 400px;
    width: 100%;
    text-align: center;
}

.modal-content h3 {
    margin-bottom: 15px;
    color: #2c3e50;
    font-size: 1.2rem;
}

.modal-content p {
    margin-bottom: 20px;
    color: #6c757d;
    line-height: 1.5;
}

.modal-content input[type="text"],
.modal-content input[type="email"],
.modal-content input[type="password"] {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    margin-bottom: 20px;
    transition: border-color 0.3s ease;
}

.modal-content input[type="text"]:focus,
.modal-content input[type="email"]:focus,
.modal-content input[type="password"]:focus {
    outline: none;
    border-color: #667eea;
}

.modal-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.modal-actions button {
    flex: 1;
    min-width: 100px;
}

.terms-modal-content {
    max-width: 560px;
    text-align: left;
}

.terms-modal-content .modal-actions {
    justify-content: flex-end;
}

.terms-version-label {
    margin: -8px 0 10px;
    font-size: 0.85rem;
    color: #64748b;
}

.terms-modal-content .modal-actions button {
    flex: 0 0 auto;
    min-width: 140px;
}

.export-pdf-modal-content {
    max-width: 620px;
    text-align: left;
}

.export-pdf-modal-content label {
    display: flex;
    align-items: center;
    gap: 10px;
}

.export-pdf-modal-content input[type="checkbox"],
.export-pdf-modal-content input[type="radio"] {
    width: auto;
    margin: 0;
}

.export-controls {
    margin-bottom: 10px;
}

.export-list-item {
    margin-bottom: 8px;
    padding: 8px 10px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
}

.export-filter-group {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid #e5e7eb;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.export-filter-group p {
    margin: 0;
    font-weight: 600;
}

[data-theme="dark"] .export-filter-group {
    border-top-color: #334155;
}

[data-theme="dark"] .export-list-item {
    border-color: #334155;
}

/* Context Menus */
.context-menu {
    position: fixed;
    background: white;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    padding: 8px 0;
    z-index: 1000;
    min-width: 160px;
    border: 1px solid #e9ecef;
}

.menu-item {
    display: block;
    width: 100%;
    padding: 12px 16px;
    border: none;
    background: none;
    text-align: left;
    cursor: pointer;
    font-size: 0.9rem;
    color: #495057;
    transition: background-color 0.2s ease;
}

.menu-item:hover {
    background-color: #f8f9fa;
}

.menu-item.danger {
    color: #dc3545;
}

.menu-item.danger:hover {
    background-color: #f5f5f5;
    color: #c82333;
}

/* Target Lists (Move/Copy Modal) */
.target-lists {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
    max-height: 220px;
    overflow: auto;
    padding-right: 4px;
}

.target-list-option {
    padding: 12px 16px;
    border: 2px solid #e9ecef;
    background: white;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    color: #495057;
    text-align: left;
}

.target-list-option:hover {
    border-color: #667eea;
    background-color: #f8f9ff;
    color: #667eea;
}

/* Empty States */
.empty-items-state {
    text-align: center;
    padding: 40px 20px;
    color: #6c757d;
}

.empty-items-state h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: #495057;
}

.empty-items-state p {
    font-size: 0.9rem;
}

/* Loading States */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
    color: #6c757d;
}

.loading::after {
    content: "⏳";
    margin-left: 8px;
    animation: spin 2s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-header {
        padding: 15px 20px;
    }
    
    .app-header h1 {
        font-size: 1.3rem;
    }
    
    .user-info {
        font-size: 0.8rem;
        gap: 10px;
    }
    
    .lists-nav {
        padding: 15px 20px;
    }
    
    .list-header {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
    
    .list-actions {
        align-self: flex-end;
        flex-wrap: wrap;
    }
    
    .add-item-section {
        padding: 15px 20px;
    }
    
    .active-list {
        padding: 15px;
    }
    
    .item {
        padding: 12px 20px;
    }
    
    .modal-content {
        padding: 20px;
        margin: 0 15px;
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .modal-actions button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .auth-card {
        padding: 30px 20px;
    }
    
    .auth-card h1 {
        font-size: 1.6rem;
    }
    
    .app-header {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    .user-info {
        align-self: flex-end;
    }
    
    .lists-header {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    .btn-create {
        align-self: flex-end;
    }
    
    .add-item-form {
        flex-direction: column;
    }
    
    .btn-add {
        width: 100%;
        height: 44px;
        border-radius: 8px;
    }
    
    .list-actions {
        flex-direction: column;
        width: 100%;
    }
}
/* ===== Restored compact layout (from Mar 9 session) ===== */

/* 1. Header Compression - Force Inline */
.app-header {
    padding: 12px 20px !important;
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    justify-content: space-between !important;
    align-items: center !important;
}

.app-header h1 {
    font-size: 1.3rem !important;
    margin: 0 !important;
    flex: 1 !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    min-width: 0 !important;
}

.user-info {
    flex: 0 0 auto !important;
    flex-shrink: 0 !important;
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
}

.btn-secondary {
    padding: 6px 12px !important;
    font-size: 0.9rem !important;
    min-width: auto !important;
    flex-shrink: 0 !important;
    white-space: nowrap !important;
}

/* Theme toggle (kept compact and inline-safe) */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 2px solid rgba(255,255,255,0.55);
    background: rgba(255,255,255,0.15);
    color: #fff;
    font-size: 1.15rem;
    cursor: pointer;
    line-height: 1;
    flex: 0 0 auto;
}

.theme-toggle:hover { background: rgba(255,255,255,0.25); }

/* 2. Lists Header Compression - Force Inline */
.lists-nav {
    padding: 6px 20px 2px 20px !important;
    border-bottom: 1px solid #e9ecef;
    margin-bottom: 0 !important;
}

.lists-header {
    padding: 4px 0 2px 0 !important;
    margin-bottom: 2px !important;
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    justify-content: space-between !important;
    align-items: center !important;
}

.lists-header h2 {
    font-size: 1.1rem !important;
    margin: 0 !important;
    flex: 1 !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    min-width: 0 !important;
}

.btn-create {
    padding: 0 !important;
    font-size: 1.2rem !important;
    min-width: auto !important;
    border-radius: 50% !important;
    width: 32px !important;
    height: 32px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    flex: 0 0 auto !important;
    flex-shrink: 0 !important;
    white-space: nowrap !important;
}

/* 3. List Tabs - Horizontal Scroll */
.lists-tabs {
    display: flex !important;
    overflow-x: auto !important;
    gap: 8px !important;
    padding: 8px 0 12px 0 !important;
    scrollbar-width: none !important;
    -ms-overflow-style: none !important;
}

.lists-tabs::-webkit-scrollbar {
    display: none !important;
}

.list-tab {
    flex-shrink: 0 !important;
    min-width: 120px !important;
    padding: 8px 16px !important;
    border-radius: 20px !important;
    font-size: 0.9rem !important;
    white-space: nowrap !important;
}

/* 4. List Header Compression */
.list-header {
    padding: 12px 20px 8px 20px !important;
}

.list-header h2 {
    font-size: 1.2rem !important;
    margin: 0 !important;
}

/* Keep hidden for compact look */
.item-count {
    display: none !important;
}

/* Action buttons compact: show options, keep save/cancel when editing */
.list-actions .btn-edit,
.list-actions .btn-secondary,
.list-actions .btn-options {
    padding: 6px 10px !important;
    font-size: 0.8rem !important;
    display: none !important;
}

.list-actions .btn-options {
    display: block !important;
    padding: 8px !important;
}

.list-actions .btn-save,
.list-actions .btn-cancel {
    padding: 6px 12px !important;
    font-size: 0.8rem !important;
}

/* 5. Inline Add Item - Force Single Line */
.add-item-section {
    padding: 12px 20px !important;
}

.add-item-form {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    gap: 12px !important;
    width: 100% !important;
    white-space: nowrap !important;
}

.add-item-form > * {
    white-space: normal !important;
}

#new-item-input {
    flex: 1 !important;
    min-width: 0 !important;
    padding: 12px 16px !important;
    border-radius: 25px !important;
    margin: 0 !important;
    width: auto !important;
    max-width: none !important;
    display: inline-block !important;
}

#add-item-btn,
.add-item-form .btn-add {
    flex: 0 0 auto !important;
    flex-shrink: 0 !important;
    width: 44px !important;
    height: 44px !important;
    border-radius: 50% !important;
    padding: 0 !important;
    margin: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 1.2rem !important;
}

/* 6. Items Section Compression */
.items-section {
    padding-top: 8px !important;
}

.item {
    padding: 10px 20px !important;
}

/* 7. Mobile Responsive Overrides */
@media (max-width: 768px) {
    .app-header {
        padding: 10px 16px !important;
    }

    .lists-nav {
        padding: 6px 16px !important;
    }

    .list-header {
        padding: 10px 16px 6px 16px !important;
    }

    .add-item-section {
        padding: 10px 16px !important;
    }

    .add-item-form {
        gap: 10px !important;
    }

    #new-item-input {
        padding: 10px 14px !important;
    }

    #add-item-btn,
    .add-item-form .btn-add {
        width: 40px !important;
        height: 40px !important;
    }

    .item {
        padding: 8px 16px !important;
    }
}

/* ===== Dark mode layer (safe overlay) ===== */
[data-theme="dark"] body {
    background: #0a0e27;
    color: #f1f5f9;
}

[data-theme="dark"] .app-container,
[data-theme="dark"] .lists-nav,
[data-theme="dark"] .active-list,
[data-theme="dark"] .list-header,
[data-theme="dark"] .add-item-section,
[data-theme="dark"] .items-container,
[data-theme="dark"] .auth-card,
[data-theme="dark"] .modal-content,
[data-theme="dark"] .context-menu,
[data-theme="dark"] .app-menu,
[data-theme="dark"] .list-tab,
[data-theme="dark"] #new-item-input,
[data-theme="dark"] .item-text-input,
[data-theme="dark"] .auth-form input,
[data-theme="dark"] .modal-content input {
    background: #1a1f3a !important;
    color: #f1f5f9 !important;
    border-color: #2a2f4a !important;
}

[data-theme="dark"] .app-header {
    background: #1a1f3a !important;
    border-bottom: 1px solid #2a2f4a !important;
    box-shadow: none !important;
}

[data-theme="dark"] .lists-header h2,
[data-theme="dark"] .list-title-section h2,
[data-theme="dark"] .auth-card h1,
[data-theme="dark"] .empty-state h3,
[data-theme="dark"] .empty-items-state h4 {
    color: #f1f5f9 !important;
}

[data-theme="dark"] .auth-card p,
[data-theme="dark"] .empty-state p,
[data-theme="dark"] .empty-items-state p,
[data-theme="dark"] .list-owner,
[data-theme="dark"] .auth-toggle,
[data-theme="dark"] .item-count {
    color: #cbd5e1 !important;
}

[data-theme="dark"] .empty-state {
    background: #1a1f3a !important;
    border-color: #2a2f4a !important;
}

[data-theme="dark"] .tos-box {
    background: #1e293b !important;
    border-color: #334155 !important;
    color: #cbd5e1 !important;
}

[data-theme="dark"] .tos-box h3,
[data-theme="dark"] .tos-agree-row {
    color: #e2e8f0 !important;
}

[data-theme="dark"] .tos-box p {
    color: #cbd5e1 !important;
}

[data-theme="dark"] .auth-error.auth-info {
    background: #1e3a8a !important;
    border-color: #3b82f6 !important;
    color: #dbeafe !important;
}

[data-theme="dark"] .terms-version-label {
    color: #94a3b8 !important;
}

[data-theme="dark"] .tos-contact a {
    color: #bfdbfe !important;
}

[data-theme="dark"] .list-tab {
    background: #0a0e27 !important;
    color: #cbd5e1 !important;
}

[data-theme="dark"] .list-tab.active {
    background: #3b82f6 !important;
    border-color: #3b82f6 !important;
    color: #0a0e27 !important;
}

[data-theme="dark"] .btn-primary {
    background: #3b82f6 !important;
    color: #0a0e27 !important;
}

[data-theme="dark"] .btn-primary:hover {
    background: #60a5fa !important;
}

[data-theme="dark"] .btn-secondary {
    border-color: #3b82f6 !important;
    color: #3b82f6 !important;
    background: transparent !important;
}

[data-theme="dark"] .btn-secondary:hover {
    background: #3b82f6 !important;
    color: #0a0e27 !important;
}

[data-theme="dark"] .item {
    border-bottom-color: #2a2f4a !important;
}

[data-theme="dark"] .item:hover {
    background: rgba(59,130,246,0.08) !important;
}

[data-theme="dark"] .items-checked::before {
    color: #cbd5e1 !important;
    border-top-color: #2a2f4a !important;
    background: #1a1f3a !important;
}

[data-theme="dark"] .theme-toggle {
    background: #3b82f6;
    border-color: #3b82f6;
    color: #0a0e27;
}

[data-theme="dark"] .theme-toggle:hover {
    background: #60a5fa;
}

/* ===== Folder-tab styling + active-only tab menu ===== */
.lists-tabs {
    align-items: flex-end !important;
    gap: 4px !important;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
}

.list-tab {
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
    width: auto !important;
    min-width: 0 !important;
    max-width: none !important;
    padding: 6px 10px !important;
    border: 1px solid #cfd6df !important;
    border-bottom: none !important;
    border-radius: 10px 10px 0 0 !important;
    background: #e9edf3 !important;
    color: #4a5568 !important;
    box-shadow: inset 0 -1px 0 rgba(0,0,0,0.05);
}

.list-tab .list-tab-label {
    background: transparent;
    border: 0;
    padding: 0;
    margin: 0;
    font: inherit;
    color: inherit;
    cursor: pointer;
    white-space: nowrap;
    overflow: visible;
    text-overflow: clip;
    max-width: none;
}

.list-tab.active {
    background: #ffffff !important;
    color: #2d3748 !important;
    border-color: #b9c3cf !important;
    position: relative;
    top: 1px;
    z-index: 2;
    box-shadow: 0 -1px 2px rgba(0,0,0,0.06);
}

.tab-menu-btn {
    border: 0;
    background: transparent;
    color: #64748b;
    width: 22px;
    height: 22px;
    border-radius: 6px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.tab-menu-btn:hover { background: rgba(0,0,0,0.08); }

/* Remove duplicate list-name section below tabs */
.list-header {
    display: none !important;
}

/* keep active list body snug against tabs */
.active-list { padding-top: 0 !important; }

[data-theme="dark"] .list-tab {
    background: #2a2f4a !important;
    color: #cbd5e1 !important;
    border-color: #3a4260 !important;
}

[data-theme="dark"] .list-tab.active {
    background: #1a1f3a !important;
    color: #f1f5f9 !important;
    border-color: #4b5a86 !important;
}

[data-theme="dark"] .tab-menu-btn { color: #cbd5e1; }
[data-theme="dark"] .tab-menu-btn:hover { background: rgba(255,255,255,0.08); }

/* ===== Add-item row visually merged into item list ===== */
.add-item-section {
    margin-bottom: 0 !important;
    border-radius: 10px 10px 0 0 !important;
    box-shadow: none !important;
    border: 1px solid #e9ecef !important;
    border-bottom: 1px solid #f1f3f4 !important;
    background: #ffffff !important;
}

.items-container {
    margin-top: 0 !important;
    border-radius: 0 0 10px 10px !important;
    box-shadow: none !important;
    border: 1px solid #e9ecef !important;
    border-top: 0 !important;
}

/* Make input feel like first list row, not a separate card */
#new-item-input {
    border-radius: 8px !important;
}

[data-theme="dark"] .add-item-section {
    background: #1a1f3a !important;
    border-color: #2a2f4a !important;
    border-bottom-color: #2a2f4a !important;
}

[data-theme="dark"] .items-container {
    border-color: #2a2f4a !important;
}

/* Remove distracting completed-items label/check icon */
.completed-header {
    display: none !important;
}

.items-checked::before {
    content: none !important;
    display: none !important;
}

/* Dark mode: item text should be white */
[data-theme="dark"] .item-text {
    color: #f1f5f9 !important;
}

/* App menu as popup (like item menu) */
.app-menu {
    position: fixed;
    background: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    padding: 8px 0;
    z-index: 1200;
    min-width: 220px;
}

.app-menu .menu-item {
    padding: 10px 14px;
}

[data-theme="dark"] .app-menu {
    background: #1a1f3a;
    border-color: #2a2f4a;
}

[data-theme="dark"] .app-menu .menu-item {
    color: #f1f5f9;
}

[data-theme="dark"] .app-menu .menu-item:hover {
    background: #2a2f4a;
}

/* Inline item editing UX */
.item-text {
    cursor: text;
}

.inline-edit-input {
    width: 100%;
    border: 1px solid #667eea !important;
    border-radius: 6px;
    padding: 6px 8px;
    background: #fff;
    color: #2c3e50;
}

[data-theme="dark"] .inline-edit-input {
    background: #0f1530;
    color: #f1f5f9;
    border-color: #3b82f6 !important;
}


/* Shared metadata row */
.shared-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 6px 0 8px;
    padding: 8px 10px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    background: #f8fafc;
}

.shared-meta-text {
    color: #475569;
    font-size: 0.9rem;
}

.btn-link {
    border: 0;
    background: transparent;
    color: #2563eb;
    font-weight: 600;
    cursor: pointer;
    padding: 2px 4px;
}

.share-user-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid #e9ecef;
}

.share-user-row:last-child {
    border-bottom: 0;
}

.share-user-name {
    font-weight: 600;
    color: #334155;
}

.share-user-email {
    color: #64748b;
    font-size: 0.85rem;
}

[data-theme="dark"] .shared-meta-row {
    background: #1a1f3a;
    border-color: #2a2f4a;
}

[data-theme="dark"] .shared-meta-text,
[data-theme="dark"] .share-user-name,
[data-theme="dark"] .share-user-email {
    color: #e2e8f0;
}

[data-theme="dark"] .share-user-row {
    border-bottom-color: #2a2f4a;
}

/* Shared row cleanup polish */
.shared-meta-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.shared-meta-action {
    white-space: nowrap;
}

.share-remove-btn {
    min-width: 120px;
}

@media (max-width: 640px) {
    .shared-meta-row {
        align-items: flex-start;
        flex-direction: column;
    }

    .shared-meta-text {
        white-space: normal;
    }
}


/* ===== Desktop alignment: center app header + list nav with list content ===== */
.app-chrome-inner {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Keep top area centered as part of the app (not full-width bars) */
.app-header {
    display: block !important;
    padding: 12px 0 8px 0 !important;
    background: transparent !important;
    box-shadow: none !important;
}

.app-header .app-chrome-inner {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white;
    border-radius: 12px;
    padding-top: 12px;
    padding-bottom: 12px;
}

.lists-nav {
    padding: 0 !important;
    margin-bottom: 0 !important;
    background: transparent !important;
    border-bottom: 0 !important;
}

.lists-nav .app-chrome-inner {
    background: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 12px 12px 0 0;
    border-bottom: 0;
    padding-top: 6px;
    padding-bottom: 0;
}

/* Remove gap: tabs should attach directly to active list area */
.lists-tabs {
    margin-bottom: 0 !important;
}

.active-list {
    padding-top: 0 !important;
    margin-top: 0 !important;
}

[data-theme="dark"] .app-header .app-chrome-inner {
    background: #1a1f3a !important;
    border: 1px solid #2a2f4a;
}

[data-theme="dark"] .lists-nav .app-chrome-inner {
    background: #1a1f3a !important;
    border-color: #2a2f4a;
}

@media (max-width: 768px) {
    .app-chrome-inner {
        padding: 0 16px;
    }

    .app-header {
        padding: 10px 0 6px 0 !important;
    }
}


/* Single uninterrupted card: tabs + active list */
.lists-nav .app-chrome-inner {
    border-radius: 12px 12px 0 0;
}

.active-list {
    background: #ffffff;
    border: 1px solid #e9ecef;
    border-top: 0;
    border-radius: 0 0 12px 12px;
    padding: 0 0 12px 0 !important;
}

.list-header,
.add-item-section,
.items-container {
    border-radius: 0 !important;
    box-shadow: none !important;
    margin-bottom: 0 !important;
}

.list-header,
.add-item-section {
    border-bottom: 1px solid #eef1f4;
}

.items-section {
    padding-top: 0 !important;
}

[data-theme="dark"] .active-list {
    background: #1a1f3a !important;
    border-color: #2a2f4a;
}

[data-theme="dark"] .list-header,
[data-theme="dark"] .add-item-section {
    border-bottom-color: #2a2f4a;
}


/* Refinement: denser rows + active tab merged into list card */
.lists-tabs {
    gap: 6px !important;
    padding: 8px 0 0 0 !important;
    border-bottom: 1px solid #e9ecef;
}

.list-tab {
    margin-bottom: -1px;
}

.list-tab.active {
    border-bottom-color: #ffffff !important;
}

.list-header {
    padding: 10px 18px 6px 18px !important;
}

.add-item-section {
    padding: 10px 18px !important;
}

.add-item-form {
    gap: 10px !important;
}

#new-item-input {
    padding: 10px 14px !important;
}

#add-item-btn,
.add-item-form .btn-add {
    width: 40px !important;
    height: 40px !important;
}

.item {
    padding: 8px 18px !important;
}

[data-theme="dark"] .lists-tabs {
    border-bottom-color: #2a2f4a;
}

[data-theme="dark"] .list-tab.active {
    border-bottom-color: #1a1f3a !important;
}


/* Fix: no line under active tab + remove boxed feel on add section */
.lists-tabs {
    border-bottom: 0 !important;
}

.list-tab {
    position: relative;
}

.list-tab:not(.active)::after {
    content: "";
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: -3px;
    height: 1px;
    background: #e9ecef;
}

.list-tab.active {
    z-index: 2;
    margin-bottom: 0 !important;
    border-bottom-color: transparent !important;
}

.add-item-section {
    border: 0 !important;
    outline: 0 !important;
}

[data-theme="dark"] .list-tab:not(.active)::after {
    background: #2a2f4a;
}


/* Final tab seam fix: active tab has no bottom edge at all */
.list-tab.active {
    border-bottom-width: 0 !important;
    padding-bottom: 9px !important;
    border-bottom-left-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
}

[data-theme="dark"] .list-tab.active {
    border-bottom-width: 0 !important;
}


/* Structure tweak: grounded list box under tabs */
.active-list {
    background: transparent !important;
    border: 0 !important;
    border-radius: 0 !important;
    padding: 0 0 12px 0 !important;
}

.list-header {
    margin-bottom: 10px !important;
}

.add-item-section {
    border: 1px solid #dfe5ec !important;
    border-bottom: 0 !important;
    border-radius: 10px 10px 0 0 !important;
    box-shadow: none !important;
    margin-bottom: 0 !important;
}

.items-container {
    border: 1px solid #dfe5ec !important;
    border-top: 0 !important;
    border-radius: 0 0 10px 10px !important;
    box-shadow: none !important;
    margin-top: 0 !important;
}

.lists-tabs {
    border-bottom: 0 !important;
}

.list-tab.active {
    border-bottom-width: 0 !important;
}

[data-theme="dark"] .add-item-section,
[data-theme="dark"] .items-container {
    border-color: #2a2f4a !important;
}


/* Match active tab color to add-item plus button */
.list-tab.active,
.list-tab.shared.active {
    background: #667eea !important;
    border-color: #667eea !important;
    color: #ffffff !important;
}

[data-theme="dark"] .list-tab.active,
[data-theme="dark"] .list-tab.shared.active {
    background: #667eea !important;
    border-color: #667eea !important;
    color: #ffffff !important;
}


/* Dark mode cleanup: remove full-width divider above My Lists */
[data-theme="dark"] .app-header {
    border-bottom: 0 !important;
}


/* Remove middle corner rounding; keep only bottom rounding */
.add-item-section {
    border-top-left-radius: 0 !important;
    border-top-right-radius: 0 !important;
    border-bottom-left-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
}


/* Shared-with/by row: keep content inside list box without overflow */
.shared-meta-row {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 12px;
    row-gap: 6px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.shared-meta-text {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.shared-meta-action {
    justify-self: end;
    white-space: nowrap;
}

@media (max-width: 640px) {
    .shared-meta-row {
        grid-template-columns: 1fr;
    }

    .shared-meta-action {
        justify-self: start;
    }

    .shared-meta-text {
        white-space: normal;
        overflow-wrap: anywhere;
    }
}


/* Fix: shared-meta visibility + integrated styling */
.shared-meta-row {
    /* do not force visible; JS controls this row */
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;

    /* integrate into list area instead of separate pill box */
    margin: 2px 0 8px;
    padding: 0 0 8px 0;
    border: 0;
    border-bottom: 1px solid #e9ecef;
    border-radius: 0;
    background: transparent;
}

.shared-meta-row[style*="display: none"] {
    display: none !important;
}

.shared-meta-text {
    min-width: 0;
    white-space: normal;
    overflow-wrap: anywhere;
}

.shared-meta-action {
    white-space: nowrap;
}

[data-theme="dark"] .shared-meta-row {
    border-bottom-color: #2a2f4a;
}


/* Shared row inside add-item section */
.add-item-section .shared-meta-row {
    margin-top: 0;
    margin-bottom: 8px;
}


/* Shared row: remove bottom divider line */
.add-item-section .shared-meta-row {
    border-bottom: 0 !important;
}


/* Active tab ellipsis should match active tab text color */
.list-tab.active .tab-menu-btn {
    color: currentColor !important;
}