/**
 * Components Styles - 元件樣式
 * 包含按鈕、表單、卡片、頁籤、彈窗、Toast 等可重用元件
 */

/* ==================== Tabs ==================== */
.tabs {
    display: flex;
    background: #f8fafc;
    border-bottom: 2px solid var(--border);
}

.tab-btn {
    padding: 16px 32px;
    border: none;
    background: transparent;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    color: var(--primary);
    background: rgba(26, 82, 118, 0.05);
}

.tab-btn.active {
    color: var(--primary);
    background: var(--bg-card);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    border-radius: 2px 2px 0 0;
}

.tab-content {
    display: none;
    padding: 28px;
    animation: fadeIn 0.3s ease;
}

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

/* ==================== Form Elements ==================== */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px 32px;
}

.form-grid.three-cols {
    grid-template-columns: repeat(3, 1fr);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.form-group label .required {
    color: var(--danger);
    font-weight: 600;
}

.input-wrapper {
    display: flex;
    gap: 8px;
    align-items: center;
}

input[type="text"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.9rem;
    color: var(--text-primary);
    background: #fafbfc;
    transition: all 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(41, 128, 185, 0.1);
}

input:read-only {
    background: #f0f3f5;
    color: var(--text-secondary);
    cursor: default;
}

textarea {
    min-height: 100px;
    resize: vertical;
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235d6d7e' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* ==================== Buttons ==================== */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
    white-space: nowrap;
    text-decoration: none;
    line-height: 1.4;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(26, 82, 118, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(26, 82, 118, 0.4);
    filter: brightness(1.05);
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, #27ae60 0%, #1e8449 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(39, 174, 96, 0.3);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(39, 174, 96, 0.4);
    filter: brightness(1.05);
}

.btn-warning {
    background: linear-gradient(135deg, #f39c12 0%, #d68910 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(243, 156, 18, 0.3);
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(243, 156, 18, 0.4);
    filter: brightness(1.05);
}

.btn-danger {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(231, 76, 60, 0.3);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(231, 76, 60, 0.4);
    filter: brightness(1.05);
}

.btn-cancel {
    background: #f0f3f5;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-cancel:hover {
    background: #e5e9ec;
    color: var(--text-primary);
    border-color: #d0d5da;
}

/* 特殊漸層按鈕 - 儲存至崗位清單 */
.btn-gradient-purple {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.btn-gradient-purple:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4);
    filter: brightness(1.05);
}

.btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    flex-shrink: 0;
}

/* 小尺寸按鈕 */
.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
    border-radius: 6px;
}

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

/* 大尺寸按鈕 */
.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
    border-radius: 10px;
}

.btn-lg svg {
    width: 20px;
    height: 20px;
}

.btn-lookup {
    padding: 10px 16px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    background: #f8fafc;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-lookup:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-1px);
}

.btn-icon {
    width: 38px;
    height: 38px;
    padding: 0;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    background: #f8fafc;
    color: var(--text-secondary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.btn-icon:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-1px);
}

.btn-icon svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.nav-buttons {
    display: flex;
    gap: 8px;
}

.nav-btn {
    width: 36px;
    height: 36px;
    border: 1.5px solid var(--border);
    border-radius: 6px;
    background: white;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.nav-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.nav-btn svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

/* ==================== AI Helper (AI 幫我想) ==================== */
.ai-helper-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
    padding: 16px;
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.08) 0%, rgba(142, 68, 173, 0.05) 100%);
    border: 1px solid rgba(155, 89, 182, 0.2);
    border-radius: var(--radius);
}

.ai-helper-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px 24px;
    background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(155, 89, 182, 0.3);
    transition: all 0.3s ease;
}

.ai-helper-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(155, 89, 182, 0.4);
}

.ai-helper-btn:active {
    transform: translateY(-1px);
}

.ai-helper-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.ai-helper-btn svg {
    flex-shrink: 0;
}

/* Prompt Editor */
.ai-prompt-editor {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.prompt-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.prompt-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.prompt-reset-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    background: rgba(155, 89, 182, 0.1);
    border: 1px solid rgba(155, 89, 182, 0.2);
    border-radius: 6px;
    color: #8e44ad;
    cursor: pointer;
    transition: all 0.2s ease;
}

.prompt-reset-btn:hover {
    background: rgba(155, 89, 182, 0.2);
    border-color: rgba(155, 89, 182, 0.3);
}

.prompt-textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    resize: vertical;
    background: white;
    color: var(--text-primary);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.prompt-textarea:focus {
    outline: none;
    border-color: #9b59b6;
    box-shadow: 0 0 0 3px rgba(155, 89, 182, 0.15);
}

.prompt-textarea::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

/* AI Helper Loading State */
.ai-helper-container.loading .ai-helper-btn {
    pointer-events: none;
}

.ai-helper-container.loading .ai-helper-btn::after {
    content: '';
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: 8px;
}

/* Legacy: Keep old styles for backward compatibility */
.ai-bags-container {
    display: none; /* Hidden - replaced by ai-helper-container */
}

/* ==================== Old AI Button (Deprecated) ==================== */
.ai-generate-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(155, 89, 182, 0.3);
    transition: all 0.3s ease;
}

.ai-generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(155, 89, 182, 0.4);
}

.ai-generate-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.ai-generate-btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.ai-generate-btn .spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ==================== Form Actions ==================== */
.form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 28px;
    background: #f8fafc;
    border-top: 1px solid var(--border);
}

.action-buttons {
    display: flex;
    gap: 12px;
}

/* ==================== Toggle Switch ==================== */
.toggle-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toggle-switch {
    position: relative;
    width: 52px;
    height: 28px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.3s;
    border-radius: 28px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--success);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(24px);
}

.toggle-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ==================== Toast Notification ==================== */
.toast {
    position: fixed;
    top: 24px;
    right: 24px;
    padding: 16px 24px;
    background: var(--success);
    color: white;
    border-radius: var(--radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateX(120%);
    transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 1000;
}

.toast.show {
    transform: translateX(0);
}

.toast svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

/* ==================== Modal ==================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
    backdrop-filter: blur(4px);
}

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

.modal {
    background: white;
    border-radius: var(--radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 500px;
    animation: modalIn 0.3s ease;
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: #f0f3f5;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--danger);
    color: white;
}

.modal-body {
    padding: 24px;
}

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

/* ==================== Checkbox Group ==================== */
.checkbox-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    border: 1.5px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.checkbox-item:hover {
    border-color: var(--primary-light);
    background: rgba(41, 128, 185, 0.05);
}

.checkbox-item input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.checkbox-item label {
    cursor: pointer;
    font-size: 0.9rem;
}

/* ==================== Special Fields ==================== */
.confidential-field {
    position: relative;
}

.confidential-field input {
    padding-left: 32px;
}

.confidential-field::before {
    content: '🔒';
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
}

.numbered-textarea {
    font-family: inherit;
    line-height: 1.8;
}

/* ==================== Data Preview ==================== */
.data-preview {
    margin-top: 24px;
    padding: 20px;
    background: #f8fafc;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.data-preview h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.data-preview pre {
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.8rem;
    background: #2c3e50;
    color: #ecf0f1;
    padding: 16px;
    border-radius: 6px;
    overflow-x: auto;
    max-height: 300px;
}

/* ==================== Responsive Design for Components ==================== */

/* Large Tablets (1024px) */
@media (max-width: 1024px) {
    .form-grid {
        gap: 16px 24px;
    }

    .form-grid.three-cols {
        grid-template-columns: repeat(2, 1fr);
    }

    .tab-btn {
        padding: 14px 24px;
        font-size: 0.9rem;
    }

    .ai-bags-container {
        gap: 6px;
    }
}

/* Tablets (768px) */
@media (max-width: 768px) {
    /* Tabs */
    .tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .tab-btn {
        padding: 12px 16px;
        font-size: 0.85rem;
        white-space: nowrap;
    }

    .tab-content {
        padding: 20px 16px;
    }

    /* Form Grid */
    .form-grid,
    .form-grid.three-cols {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    /* Form Actions */
    .form-actions {
        flex-direction: column;
        gap: 16px;
        padding: 16px;
    }

    .action-buttons {
        width: 100%;
        flex-wrap: wrap;
        justify-content: center;
    }

    .action-buttons .btn {
        flex: 1;
        min-width: calc(50% - 6px);
        justify-content: center;
    }

    /* Buttons */
    .btn {
        padding: 10px 16px;
        font-size: 0.85rem;
    }

    .btn svg {
        width: 16px;
        height: 16px;
    }

    .nav-buttons {
        gap: 6px;
    }

    .nav-btn {
        width: 32px;
        height: 32px;
    }

    /* AI Bags */
    .ai-bags-container {
        grid-template-columns: repeat(3, 1fr);
        gap: 4px;
    }

    .ai-bag {
        padding: 6px 8px;
    }

    .ai-bag .bag-title {
        font-size: 0.7rem;
    }

    .ai-bag .bag-subtitle {
        font-size: 0.6rem;
    }

    .ai-bag .bag-icon {
        font-size: 0.9rem;
    }

    /* Toggle */
    .toggle-group {
        flex-wrap: wrap;
    }

    .toggle-switch {
        width: 46px;
        height: 24px;
    }

    .toggle-slider:before {
        height: 18px;
        width: 18px;
    }

    .toggle-switch input:checked + .toggle-slider:before {
        transform: translateX(22px);
    }

    /* Checkbox */
    .checkbox-group {
        grid-template-columns: 1fr;
    }

    /* Modal */
    .modal {
        width: 95%;
        max-width: none;
        margin: 16px;
    }

    .modal-header {
        padding: 16px;
    }

    .modal-header h3 {
        font-size: 1rem;
    }

    .modal-body {
        padding: 16px;
    }

    .modal-footer {
        padding: 12px 16px;
        flex-wrap: wrap;
    }

    .modal-footer .btn {
        flex: 1;
        min-width: calc(50% - 6px);
    }

    /* Toast */
    .toast {
        top: 12px;
        right: 12px;
        left: 12px;
        padding: 12px 16px;
        font-size: 0.9rem;
    }

    .toast svg {
        width: 20px;
        height: 20px;
    }

    /* Data Preview */
    .data-preview {
        padding: 16px;
        margin-top: 16px;
    }

    .data-preview pre {
        padding: 12px;
        font-size: 0.75rem;
        max-height: 200px;
    }
}

/* Mobile Phones (480px) */
@media (max-width: 480px) {
    /* Tabs */
    .tab-btn {
        padding: 10px 12px;
        font-size: 0.8rem;
    }

    .tab-content {
        padding: 16px 12px;
    }

    /* Form */
    .form-group label {
        font-size: 0.8rem;
    }

    input[type="text"],
    input[type="number"],
    input[type="date"],
    select,
    textarea {
        padding: 8px 12px;
        font-size: 0.85rem;
    }

    .input-wrapper {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-lookup {
        padding: 8px 12px;
        font-size: 0.8rem;
    }

    /* Form Actions */
    .form-actions {
        padding: 12px;
    }

    .action-buttons {
        flex-direction: column;
    }

    .action-buttons .btn {
        width: 100%;
        min-width: 100%;
    }

    /* Buttons */
    .btn {
        padding: 10px 14px;
        font-size: 0.8rem;
        gap: 6px;
    }

    .btn-icon {
        width: 34px;
        height: 34px;
    }

    /* AI Bags */
    .ai-bags-container {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 4px;
    }

    .ai-bag {
        padding: 6px 4px;
    }

    .ai-bag .bag-icon {
        font-size: 0.85rem;
    }

    .ai-bag .bag-title {
        font-size: 0.65rem;
    }

    .ai-bag .bag-subtitle {
        display: none;
    }

    .ai-bag .bag-edit-btn {
        padding: 1px 3px;
        font-size: 0.6rem;
    }

    /* AI Generate Button */
    .ai-generate-btn {
        padding: 10px 16px;
        font-size: 0.85rem;
    }

    /* Toggle */
    .toggle-label {
        font-size: 0.8rem;
    }

    /* Checkbox */
    .checkbox-item {
        padding: 8px 10px;
    }

    .checkbox-item input {
        width: 16px;
        height: 16px;
    }

    .checkbox-item label {
        font-size: 0.85rem;
    }

    /* Modal */
    .modal {
        margin: 8px;
        width: calc(100% - 16px);
    }

    .modal-header {
        padding: 12px;
    }

    .modal-header h3 {
        font-size: 0.95rem;
    }

    .modal-close {
        width: 28px;
        height: 28px;
    }

    .modal-body {
        padding: 12px;
    }

    .modal-footer {
        padding: 10px 12px;
        gap: 8px;
    }

    .modal-footer .btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }

    /* Toast */
    .toast {
        top: 8px;
        right: 8px;
        left: 8px;
        padding: 10px 14px;
        font-size: 0.85rem;
        gap: 8px;
    }

    .toast svg {
        width: 18px;
        height: 18px;
    }

    /* Data Preview */
    .data-preview {
        padding: 12px;
    }

    .data-preview h4 {
        font-size: 0.85rem;
    }

    .data-preview pre {
        padding: 10px;
        font-size: 0.7rem;
        max-height: 150px;
    }
}