/* =========================
   Settings Toggle Button
   ========================= */
.settings-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(15, 23, 42, 0.15);
    backdrop-filter: blur(30px) saturate(160%);
    -webkit-backdrop-filter: blur(30px) saturate(160%);
    cursor: pointer;
    transition: all 0.3s var(--smooth);
    color: var(--text-secondary);
}

html[data-theme="light"] .settings-toggle-btn {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.35);
}

.settings-toggle-btn:hover {
    background: rgba(15, 23, 42, 0.22);
    transform: scale(1.1);
    color: var(--text-primary);
}

html[data-theme="light"] .settings-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.4);
}

.settings-toggle-btn:active {
    transform: scale(0.9);
}

/* =========================
   Settings Modal
   ========================= */
.settings-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
}

.settings-modal.show {
    display: block;
}

.settings-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.settings-panel {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    max-height: 85vh;
    background: var(--bg-primary);
    border-radius: 20px 20px 0 0;
    overflow: hidden;
    animation: slideUp 0.3s var(--smooth);
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

@media (min-width: 600px) {
    .settings-panel {
        top: 50%;
        bottom: auto;
        left: 50%;
        transform: translate(-50%, -50%);
        max-width: 500px;
        max-height: 80vh;
        border-radius: 20px;
        animation: fadeIn 0.3s var(--smooth);
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: translate(-50%, -50%) scale(0.95);
        }
        to {
            opacity: 1;
            transform: translate(-50%, -50%) scale(1);
        }
    }
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--divider);
}

.settings-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.settings-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.settings-close:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

/* =========================
   Settings Tabs
   ========================= */
.settings-tabs {
    display: flex;
    padding: 0.75rem 1rem;
    gap: 0.5rem;
    border-bottom: 1px solid var(--divider);
    overflow-x: auto;
}

.settings-tab {
    flex: 1;
    padding: 0.6rem 1rem;
    border: none;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.settings-tab:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.settings-tab.active {
    background: var(--accent-gradient);
    color: white;
}

/* =========================
   Settings Content
   ========================= */
.settings-content {
    display: none;
    padding: 1rem 1.25rem;
    max-height: calc(80vh - 130px);
    overflow-y: auto;
}

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

/* Grid Settings */
.setting-group {
    margin-bottom: 1rem;
}

.setting-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.6rem;
}

.grid-selector {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.grid-option {
    width: 44px;
    height: 44px;
    border: 1px solid var(--divider);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
}

.grid-option:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
}

.grid-option.active {
    background: var(--accent-gradient);
    border-color: transparent;
    color: white;
}

/* Category Sortable */
.category-sortable {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.sortable-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.65rem 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--divider);
    border-radius: 10px;
    cursor: grab;
    transition: all 0.2s;
    user-select: none;
}

.sortable-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent);
}

.sortable-item.dragging {
    opacity: 0.5;
    background: var(--accent-glow);
    border-color: var(--accent);
}

.sortable-item.drag-over {
    border-color: var(--accent);
    background: var(--accent-glow);
}

.drag-handle {
    color: var(--text-tertiary);
    font-size: 1rem;
}

.sortable-item:hover .drag-handle {
    color: var(--accent);
}

.category-name {
    flex: 1;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* Shortcuts & Engines List */
.shortcuts-list,
.engines-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.shortcut-item,
.engine-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid var(--divider);
}

.shortcut-item img,
.engine-item .engine-icon {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    object-fit: contain;
}

.shortcut-info,
.engine-info {
    flex: 1;
    min-width: 0;
}

.shortcut-name,
.engine-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.shortcut-url,
.engine-url {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.item-actions {
    display: flex;
    gap: 0.35rem;
}

.item-actions button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: none;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.item-actions button:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
}

.item-actions .delete-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

/* Add Button */
.add-shortcut-btn,
.add-engine-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.75rem;
    border: 1px dashed var(--divider);
    background: transparent;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.add-shortcut-btn:hover,
.add-engine-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
}

/* =========================
   Edit Modals
   ========================= */
.edit-modal {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: none;
}

.edit-modal.show {
    display: block;
}

.edit-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.edit-form {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-radius: 20px 20px 0 0;
    padding: 1.5rem;
    animation: slideUp 0.3s var(--smooth);
}

@media (min-width: 500px) {
    .edit-form {
        top: 50%;
        bottom: auto;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 90%;
        max-width: 400px;
        border-radius: 20px;
    }
}

.edit-form h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--divider);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    font-size: 0.9rem;
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--accent);
}

.form-group input::placeholder {
    color: var(--text-tertiary);
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.cancel-btn,
.save-btn {
    flex: 1;
    padding: 0.75rem;
    border: none;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.cancel-btn {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
}

.cancel-btn:hover {
    background: rgba(255, 255, 255, 0.12);
}

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

.save-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

/* =========================
   Mobile Responsive
   ========================= */
@media (max-width: 768px) {
    .settings-toggle-btn {
        width: 32px;
        height: 32px;
    }

    .settings-toggle-btn svg {
        width: 14px;
        height: 14px;
    }

    .settings-panel {
        max-height: 90vh;
    }

    .settings-content {
        max-height: calc(90vh - 130px);
    }

    .settings-tabs {
        padding: 0.5rem;
        gap: 0.35rem;
    }

    .settings-tab {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }

    .settings-header {
        padding: 0.75rem 1rem;
    }

    .settings-header h2 {
        font-size: 1rem;
    }

    .settings-content {
        padding: 0.75rem 1rem;
    }

    .grid-option {
        width: 40px;
        height: 40px;
        font-size: 0.85rem;
    }

    .shortcut-item,
    .engine-item {
        padding: 0.6rem;
    }

    .shortcut-name,
    .engine-name {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .settings-modal {
        position: fixed;
    }

    .settings-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .settings-tabs::-webkit-scrollbar {
        display: none;
    }
}