/* View SVG Page Styles - Updated with New Responsive Breakpoints */

/* TikZ App Scoped Container */
.tikz-app {
    width: 100%;
    min-height: 100vh;
}

.tikz-app button, 
.tikz-app input, 
.tikz-app select, 
.tikz-app textarea {
    font-family: inherit;
}

/* Preserve monospace for any code-related elements */
.tikz-app pre, 
.tikz-app code, 
.tikz-app .code, 
.tikz-app .tikz-code, 
.tikz-app textarea[name="code"] {
    font-family: var(--font-family-mono);
    font-feature-settings: "liga" 1, "calt" 1;
    font-variant-ligatures: contextual;
}

/* View SVG Section Container - Enhanced Glass Morphism matching Index */
.tikz-app .view-svg-container {
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur-medium);
    padding: var(--spacing-12);
    margin-bottom: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--glass-shadow);
    overflow-x: hidden;
    position: relative;
}

/* Add subtle background pattern for texture - matching index */
.tikz-app .view-svg-container::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
                rgb(255 255 255 / 10%) 0%, 
                transparent 50%, 
                rgb(255 255 255 / 10%) 100%);
    border-radius: inherit;
    pointer-events: none;
}

.tikz-app .view-svg-title {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: var(--spacing-6);
    position: relative;
    z-index: 1;
}

/* Ensure all content is above the pattern */
.tikz-app .view-svg-container > * {
    position: relative;
    z-index: 1;
}

/* View Mode Row Layout - Default desktop layout */
.tikz-app #view-mode-row {
    display: flex;
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-6);
    flex-flow: row nowrap;
    align-items: flex-start;
    width: 100%;
    box-sizing: border-box;
}

.tikz-app .view-col {
    flex: 1 1 auto;
    min-width: 0; /* Cho phép flex shrink */
    box-sizing: border-box;
}

/* Left column (SVG preview) should be larger */
.tikz-app .view-col:first-child {
    flex: 2 1 auto;
    min-width: 0; /* Cho phép flex shrink */
}

/* Right column (actions/export) should be smaller */
.tikz-app .view-col:last-child {
    flex: 1 1 auto;
    min-width: 0; /* Cho phép flex shrink */
}

/* SVG Preview Block - Enhanced with Index-style Background */
.tikz-app #view-svg-preview {
    background: #fff;
    border: 1.5px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-4);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 320px;
    height: 400px;
    width: 100%;
    position: relative;
    overflow: hidden;
}

/* Add subtle background pattern for texture - matching index */
.tikz-app #view-svg-preview::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
              rgb(255 255 255 / 10%) 0%, 
              transparent 50%, 
              rgb(255 255 255 / 10%) 100%);
    border-radius: inherit;
    pointer-events: none;
    z-index: 1;
}

/* SVG image styling - above the pattern */
.tikz-app #view-svg-preview img {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    margin: 0 auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

/* Action Buttons below SVG */
.tikz-app #view-svg-actions {
    margin-top: var(--spacing-4);
    display: flex;
    gap: var(--spacing-3);
    justify-content: center;
    flex-wrap: wrap;
}

.tikz-app #view-svg-actions .view-action-btn {
    background: var(--warning-color);
    color: var(--text-dark);
    padding: var(--spacing-3) var(--spacing-5);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    text-decoration: none;
    box-shadow: var(--shadow-warning);
    transition: all var(--transition-fast);
}

.tikz-app #view-svg-actions .view-action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgb(255 193 7 / 30%);
}

.tikz-app #view-svg-actions .view-download-btn {
    background: #17a2b8;
    color: white;
}

.tikz-app #view-svg-actions .view-download-btn:hover {
    box-shadow: 0 4px 12px rgb(23 162 184 / 30%);
}

/* Back to Edit Button */
.tikz-app #view-back-to-edit-btn {
    background: linear-gradient(90deg, #28a745 0%, #218838 100%);
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.tikz-app #view-back-to-edit-btn:hover {
    box-shadow: 0 4px 12px rgb(40 167 69 / 30%);
    transform: translateY(-2px);
}

/* Actions section */
.tikz-app .actions-header {
    margin-bottom: 20px;
}

.tikz-app .actions-title {
    color: #333;
    margin-bottom: 15px;
}

.tikz-app .actions-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Export Section */
.tikz-app .export-section {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgb(0 0 0 / 8%);
    padding: 20px;
    margin-top: 20px;
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.tikz-app .export-section h4 {
    color: #333;
    text-align: center;
    margin-bottom: 16px;
}

.tikz-app #view-export-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: start;
    margin-bottom: 16px;
}

.tikz-app #view-export-form .export-pair {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
}

.tikz-app #view-export-form .export-label {
    font-weight: 500;
    color: #555;
    min-width: 80px;
    flex-shrink: 0;
}

.tikz-app .export-input {
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    box-sizing: border-box;
}

.tikz-app .export-select {
    width: 100%;
    min-width: 100px;
    max-width: 150px;
    height: 40px;
    padding: 8px 12px;
    font-size: 1rem;
    border-radius: 5px;
    border: 1px solid #ddd;
    background: #f8f9fa;
    box-sizing: border-box;
    vertical-align: middle;
    text-align: left;
    direction: ltr;
    text-indent: 0;
    unicode-bidi: normal;
}

.tikz-app .export-number {
    width: 100%;
    min-width: 100px;
    max-width: 150px;
    height: 40px;
    padding: 8px 12px;
    font-size: 1rem;
    border-radius: 5px;
    border: 1px solid #ddd;
    background: #f8f9fa;
    box-sizing: border-box;
    vertical-align: middle;
    text-align: left;
    direction: ltr;
    text-indent: 0;
    unicode-bidi: normal;
}

.tikz-app #view-export-form .export-btn-group {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 16px;
}

.tikz-app #view-export-form .export-btn {
    background: linear-gradient(90deg, #1976d2 0%, #1565c0 100%);
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    min-width: 140px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.tikz-app #view-export-form .export-btn:hover {
    box-shadow: 0 4px 12px rgb(25 118 210 / 30%);
    transform: translateY(-2px);
}

.tikz-app #view-export-msg {
    text-align: center;
    color: #388e3c;
    font-weight: bold;
    margin-top: 8px;
}

.tikz-app #view-export-msg.error {
    color: #d32f2f;
}

/* Export Download Link Style */
.tikz-app .export-download-link {
    display: inline-block;
    background: linear-gradient(90deg, #17a2b8 0%, #138496 100%);
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgb(23 162 184 / 20%);
    margin-top: 8px;
}

.tikz-app .export-download-link:hover {
    background: linear-gradient(90deg, #138496 0%, #117a8b 100%);
    box-shadow: 0 4px 12px rgb(23 162 184 / 30%);
    transform: translateY(-2px);
    color: white;
    text-decoration: none;
}

/* ===== RESPONSIVE BREAKPOINTS SYSTEM ===== */

/* Base styles: áp dụng cho tất cả thiết bị nhỏ hơn 576px */
@media (width < 576px) {
    .tikz-app .view-svg-container {
        padding: var(--spacing-6);
    }

    .tikz-app #view-mode-row {
        flex-direction: column;
        gap: var(--spacing-6);
    }

    .tikz-app .view-col:first-child,
    .tikz-app .view-col:last-child {
        flex: 1 1 auto;
        min-width: 100%;
        max-width: none;
    }

    .tikz-app #view-export-form {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-4);
        align-items: center;
    }

    .tikz-app #view-export-form .export-pair {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        width: auto;
        margin-bottom: 6px;
    }

    .tikz-app #view-export-form .export-label {
        flex-shrink: 0;
        font-size: 0.875rem;
        margin-right: 6px;
        white-space: nowrap;
    }

    .tikz-app #view-export-form .export-select,
    .tikz-app #view-export-form .export-number {
        flex: 0 0 auto;
        width: 100px;
        font-size: 0.875rem;
        border: 1px solid #ddd;
        border-radius: 5px;
        box-sizing: border-box;
        text-align: left;
        direction: ltr;
        padding-left: 8px;
        padding-right: 8px;
        text-indent: 0;
        unicode-bidi: normal;
        margin-left: 0;
        margin-right: 0;
    }
    

    .tikz-app #view-svg-actions {
        flex-flow: row wrap;
        gap: var(--spacing-2);
        justify-content: center;
    }

    .tikz-app #view-svg-actions .view-action-btn {
        flex: 1;
        min-width: 120px;
        max-width: 150px;
    }

    .tikz-app #view-export-form .export-btn,
    .tikz-app #view-back-to-edit-btn {
        width: 100%;
        max-width: 100%;
    }

    /* Đảm bảo button tải xuống vẫn căn giữa trên màn hình nhỏ */
    .tikz-app #view-export-form .export-btn-group {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 100%;
    }
}

/* ≥ 576px — điện thoại lớn (ví dụ iPhone Plus, Pixel XL) */
@media (width >= 576px) {
    .tikz-app .view-svg-container {
        padding: var(--spacing-6);
        margin: 0 var(--spacing-2);
        max-width: calc(100vw - var(--spacing-4));
        box-sizing: border-box;
    }
    
    .tikz-app #view-mode-row {
        gap: var(--spacing-6);
        flex-direction: column;
    }
    
    .tikz-app .view-col:first-child,
    .tikz-app .view-col:last-child {
        flex: 1 1 auto;
        min-width: 0;
        width: 100%;
    }
    
    .tikz-app #view-svg-actions {
        flex-flow: row wrap;
        justify-content: center;
    }
    
    .tikz-app #view-svg-actions .view-action-btn {
        width: auto;
        min-width: 140px;
    }
    
    .tikz-app #view-export-form {
        gap: var(--spacing-2);
    }
    
    .tikz-app #view-export-form .export-pair {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        gap: var(--spacing-2);
    }

    .tikz-app #view-export-form .export-label {
        flex-shrink: 0;
        font-size: 0.875rem;
        white-space: nowrap;
        margin-right: 6px;
    }

    .tikz-app #view-export-form .export-select {
        flex: 0 0 auto;
        width: 90px;
        font-size: 0.875rem;
        border: 1px solid #ddd;
        border-radius: 5px;
        box-sizing: border-box;
        text-align: left;
        direction: ltr;
        padding-left: 8px;
        padding-right: 8px;
    }

    .tikz-app #view-export-form .export-number {
        flex: 0 0 auto;
        width: 90px;
        font-size: 0.875rem;
        border: 1px solid #ddd;
        border-radius: 5px;
        box-sizing: border-box;
        text-align: left;
        direction: ltr;
        padding-left: 8px;
        padding-right: 8px;
    }
    
    .tikz-app .export-section {
        padding: 16px;
        margin-top: 16px;
    }
    
    .tikz-app .export-section h4 {
        font-size: 1rem;
        margin-bottom: 12px;
    }
}

/* 576px-768px — khoảng trung gian cần xử lý đặc biệt */
@media (width >= 576px) and (width < 768px) {
    .tikz-app .view-svg-container {
        padding: var(--spacing-3);
        margin: 0;
        max-width: 100vw;
        box-sizing: border-box;
        overflow-x: hidden;
    }
    
    .tikz-app #view-mode-row {
        gap: var(--spacing-3);
        flex-direction: column;
        width: 100%;
    }
    
    .tikz-app .view-col:first-child,
    .tikz-app .view-col:last-child {
        flex: 1 1 auto;
        min-width: 0;
        width: 100%;
    }
    
    .tikz-app #view-svg-preview {
        min-height: 250px;
        height: 300px;
        padding: var(--spacing-3);
    }
    
    .tikz-app #view-export-form {
        display: flex;
        flex-flow: row wrap;
        gap: var(--spacing-4);
        align-items: start;
        justify-content: center;
    }

    .tikz-app #view-export-form .export-pair {
        display: flex;
        flex-flow: row nowrap;
        align-items: center;
        justify-content: flex-start;
        gap: var(--spacing-4);
        flex: 1;
        min-width: 240px;
    }

    .tikz-app #view-export-form .export-label {
        flex-shrink: 0;
        font-size: 0.875rem;
        white-space: nowrap;
        margin-right: 10px;
    }

    .tikz-app #view-export-form .export-select {
        flex: 1;
        width: auto;
        min-width: 120px;
        font-size: 0.875rem;
        border: 1px solid #ddd;
        border-radius: 5px;
        box-sizing: border-box;
        text-align: left;
        direction: ltr;
        padding-left: 8px;
        padding-right: 8px;
    }

    .tikz-app #view-export-form .export-number {
        flex: 1;
        width: auto;
        min-width: 120px;
        font-size: 0.875rem;
        border: 1px solid #ddd;
        border-radius: 5px;
        box-sizing: border-box;
        text-align: left;
        direction: ltr;
        padding-left: 8px;
        padding-right: 8px;
    }
    
    .tikz-app #view-export-form .export-btn-group {
        width: 100%;
        justify-content: center;
        align-items: center;
        margin-top: var(--spacing-2);
        flex-basis: 100%;
        display: flex;
    }
    
    .tikz-app .export-section {
        padding: 14px;
        margin-top: 14px;
    }
    
    .tikz-app .export-section h4 {
        font-size: 0.9rem;
        margin-bottom: 12px;
    }
    
    .tikz-app #view-export-form .export-btn {
        padding: 8px 16px;
        font-size: 0.8rem;
        min-width: 120px;
    }
    
    /* Back to Edit Button - Compact for 576px-768px */
    .tikz-app #view-back-to-edit-btn {
        padding: 8px 12px;
        font-size: 0.75rem;
        gap: 4px;
        width: auto;
        min-width: 200px;
        max-width: 280px;
        align-self: center;
    }
}

/* ≥ 768px — tablet dọc/ngang */
@media (width >= 768px) {
    .tikz-app .view-svg-container {
        padding: var(--spacing-8);
        margin: 0 var(--spacing-4);
        max-width: calc(100vw - var(--spacing-8));
        box-sizing: border-box;
    }
    
    .tikz-app #view-mode-row {
        flex-direction: row;
        gap: var(--spacing-6);
        align-items: flex-start;
        width: 100%;
    }
    
    .tikz-app .view-col:first-child {
        flex: 1.5 1 auto;
        min-width: 0;
    }
    
    .tikz-app .view-col:last-child {
        flex: 1 1 auto;
        min-width: 0;
    }
    
    .tikz-app #view-export-form {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-3);
        align-items: center;
    }

    .tikz-app #view-export-form .export-pair {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        gap: var(--spacing-3);
        width: auto;
    }

    .tikz-app #view-export-form .export-label {
        flex-shrink: 0;
        font-size: 0.875rem;
        white-space: nowrap;
        margin-right: 8px;
    }

    .tikz-app #view-export-form .export-select {
        flex: 0 0 auto;
        width: 100px;
        font-size: 0.875rem;
        border: 1px solid #ddd;
        border-radius: 5px;
        box-sizing: border-box;
        text-align: left;
        direction: ltr;
        padding-left: 8px;
        padding-right: 8px;
    }

    .tikz-app #view-export-form .export-number {
        flex: 0 0 auto;
        width: 100px;
        font-size: 0.875rem;
        border: 1px solid #ddd;
        border-radius: 5px;
        box-sizing: border-box;
        text-align: left;
        direction: ltr;
        padding-left: 8px;
        padding-right: 8px;
    }

    .tikz-app #view-export-form .export-btn-group {
        width: 100%;
        justify-content: center;
        align-items: center;
        margin-top: var(--spacing-3);
        flex-basis: 100%;
        display: flex;
    }

    .tikz-app .export-section {
        padding: 18px;
        margin-top: 18px;
    }
    
    .tikz-app .export-section h4 {
        font-size: 1.1rem;
        margin-bottom: 14px;
    }
    
    .tikz-app #view-svg-actions {
        justify-content: center;
    }
    
    .tikz-app #view-back-to-edit-btn {
        width: 100%;
    }
}

/* ≥ 992px — laptop nhỏ / desktop thường */
@media (width >= 992px) {
    .tikz-app .view-svg-container {
        padding: var(--spacing-12);
    }
    
    .tikz-app .view-col:first-child {
        flex: 2 1 auto;
        min-width: 400px;
    }
    
    .tikz-app .view-col:last-child {
        flex: 1 1 auto;
        min-width: 320px;
        max-width: 420px;
    }
    
    .tikz-app #view-export-form {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-3);
        align-items: center;
    }

    .tikz-app #view-export-form .export-pair {
        display: flex;
        align-items: center;
        justify-content: flex-start;
        gap: var(--spacing-3);
        flex-direction: row;
    }

    .tikz-app #view-export-form .export-label {
        flex-shrink: 0;
        font-size: 0.875rem;
        white-space: nowrap;
        margin-right: 8px;
    }

    .tikz-app #view-export-form .export-select {
        flex: 0 0 auto;
        width: 110px;
        font-size: 0.875rem;
        border: 1px solid #ddd;
        border-radius: 5px;
        box-sizing: border-box;
        text-align: left;
        direction: ltr;
        padding-left: 8px;
        padding-right: 8px;
    }

    .tikz-app #view-export-form .export-number {
        flex: 0 0 auto;
        width: 110px;
        font-size: 0.875rem;
        border: 1px solid #ddd;
        border-radius: 5px;
        box-sizing: border-box;
        text-align: left;
        direction: ltr;
        padding-left: 8px;
        padding-right: 8px;
    }

    .tikz-app #view-export-form .export-btn-group {
        grid-column: 1 / -1;
        justify-content: center;
        align-items: center;
        margin-top: var(--spacing-4);
    }
    
    .tikz-app #view-svg-actions {
        justify-content: center;
        gap: var(--spacing-4);
    }
    
    .tikz-app #view-svg-actions .view-action-btn {
        min-width: 160px;
    }
}

/* 992px-1200px: Keep 1-column layout but center like smaller screens */
@media (width >= 992px) and (width < 1200px) {
    .tikz-app #view-export-form {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-3);
        align-items: center;
    }

    .tikz-app #view-export-form .export-pair {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        gap: var(--spacing-3);
        width: auto;
    }

    .tikz-app #view-export-form .export-select,
    .tikz-app #view-export-form .export-number {
        flex: 0 0 auto;
        width: 100px;
    }
}

/* ≥ 1200px — desktop rộng */
@media (width >= 1200px) {
    .tikz-app .view-svg-container {
        padding: var(--spacing-16);
    }
    
    .tikz-app #view-mode-row {
        gap: var(--spacing-12);
    }
    
    .tikz-app .view-col:first-child {
        flex: 2.5 1 auto;
        min-width: 500px;
    }
    
    .tikz-app .view-col:last-child {
        flex: 1 1 auto;
        min-width: 380px;
        max-width: 520px;
    }

    .tikz-app #view-export-form {
        display: flex;
        flex-flow: row wrap;
        gap: var(--spacing-4);
        align-items: start;
        justify-content: flex-start;
    }

    .tikz-app #view-export-form .export-pair {
        display: flex;
        flex-flow: row nowrap;
        align-items: center;
        justify-content: flex-start;
        gap: var(--spacing-4);
        flex: 1;
        min-width: 200px;
    }

    .tikz-app #view-export-form .export-label {
        flex-shrink: 0;
        font-size: 0.875rem;
        white-space: nowrap;
        margin-right: 10px;
    }

    .tikz-app #view-export-form .export-select {
        flex: 1;
        width: auto;
        min-width: 90px;
        font-size: 0.875rem;
        border: 1px solid #ddd;
        border-radius: 5px;
        box-sizing: border-box;
        text-align: left;
        direction: ltr;
        padding-left: 8px;
        padding-right: 8px;
    }

    .tikz-app #view-export-form .export-number {
        flex: 1;
        width: auto;
        min-width: 90px;
        font-size: 0.875rem;
        border: 1px solid #ddd;
        border-radius: 5px;
        box-sizing: border-box;
        text-align: left;
        direction: ltr;
        padding-left: 8px;
        padding-right: 8px;
    }

    .tikz-app #view-export-form .export-btn-group {
        width: 100%;
        justify-content: center;
        align-items: center;
        margin-top: var(--spacing-4);
        flex-basis: 100%;
        display: flex;
    }
    
    .tikz-app #view-svg-actions {
        gap: var(--spacing-5);
    }
    
    .tikz-app #view-svg-actions .view-action-btn {
        min-width: 180px;
        padding: var(--spacing-4) var(--spacing-6);
    }
}

/* ≥ 1400px — màn hình rất rộng (ultra-wide) */
@media (width >= 1400px) {
    .tikz-app .view-svg-container {
        max-width: 1400px;
        margin: 0 auto;
        padding: var(--spacing-20);
    }
    
    .tikz-app #view-mode-row {
        gap: var(--spacing-16);
    }
    
    .tikz-app .view-col:first-child {
        flex: 3 1 auto;
        min-width: 600px;
    }
    
    .tikz-app .view-col:last-child {
        flex: 1 1 auto;
        min-width: 450px;
        max-width: 600px;
    }

    .tikz-app #view-export-form {
        display: flex;
        flex-flow: row wrap;
        gap: var(--spacing-5);
        align-items: start;
        justify-content: flex-start;
    }

    .tikz-app #view-export-form .export-pair {
        display: flex;
        flex-flow: row nowrap;
        align-items: center;
        justify-content: flex-start;
        gap: var(--spacing-5);
        flex: 1;
        min-width: 250px;
    }

    .tikz-app #view-export-form .export-label {
        flex-shrink: 0;
        font-size: 0.875rem;
        white-space: nowrap;
        margin-right: 10px;
    }

    .tikz-app #view-export-form .export-select {
        flex: 1;
        width: auto;
        min-width: 130px;
        font-size: 0.875rem;
        border: 1px solid #ddd;
        border-radius: 5px;
        box-sizing: border-box;
        text-align: left;
        direction: ltr;
        padding-left: 8px;
        padding-right: 8px;
    }

    .tikz-app #view-export-form .export-number {
        flex: 1;
        width: auto;
        min-width: 130px;
        font-size: 0.875rem;
        border: 1px solid #ddd;
        border-radius: 5px;
        box-sizing: border-box;
        text-align: left;
        direction: ltr;
        padding-left: 8px;
        padding-right: 8px;
    }

    .tikz-app #view-export-form .export-btn-group {
        width: 100%;
        justify-content: center;
        align-items: center;
        margin-top: var(--spacing-5);
        flex-basis: 100%;
        display: flex;
    }
    
    .tikz-app #view-svg-actions {
        gap: var(--spacing-6);
    }
    
    .tikz-app #view-svg-actions .view-action-btn {
        min-width: 200px;
        padding: var(--spacing-5) var(--spacing-8);
        font-size: var(--font-size-lg);
    }
    
    .tikz-app #view-back-to-edit-btn {
        padding: var(--spacing-5) var(--spacing-8);
        font-size: var(--font-size-lg);
    }
}

/* High specificity override để đảm bảo căn trái */
.tikz-app .export-section .export-form .export-select,
.tikz-app .export-section .export-form .export-number {
    text-align: left;
    direction: ltr;
}

/* ===== IMAGE CAPTION SECTION ===== */

.tikz-app .image-caption-section {
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur-medium);
    padding: var(--spacing-8);
    margin-top: var(--spacing-6);
    margin-bottom: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--glass-shadow);
    position: relative;
    overflow: hidden;
}

/* Add subtle background pattern */
.tikz-app .image-caption-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
                rgb(255 255 255 / 10%) 0%, 
                transparent 50%, 
                rgb(255 255 255 / 10%) 100%);
    border-radius: inherit;
    pointer-events: none;
}

.tikz-app .caption-section-title {
    position: relative;
    z-index: 1;
    color: var(--primary-color);
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.tikz-app .caption-icon {
    font-size: 1.2em;
}

/* Caption Display Mode */
.tikz-app .caption-content {
    position: relative;
    z-index: 1;
    background: #fff;
    border-radius: var(--radius-md);
    padding: var(--spacing-6);
    margin-bottom: var(--spacing-4);
    box-shadow: var(--shadow-sm);
    border: 1.5px solid var(--border-light);
}

.tikz-app .caption-text {
    color: var(--text-dark);
    font-size: var(--font-size-base);
    line-height: 1.7;
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: pre-wrap; /* Preserve whitespace and line breaks */
}

/* MathJax styling */
.tikz-app .caption-text mjx-container {
    margin: var(--spacing-1) 0;
}

/* Empty State */
.tikz-app .caption-empty {
    position: relative;
    z-index: 1;
    padding: var(--spacing-6);
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
}

.tikz-app .caption-empty-text {
    margin: 0;
}

/* Edit Form */
.tikz-app .caption-edit-form {
    position: relative;
    z-index: 1;
    background: #fff;
    border-radius: var(--radius-md);
    padding: var(--spacing-6);
    margin-bottom: var(--spacing-4);
    box-shadow: var(--shadow-sm);
    border: 1.5px solid var(--border-light);
}

.tikz-app .caption-textarea {
    width: 100%;
    min-height: 150px;
    padding: var(--spacing-4);
    border: 1.5px solid var(--border-light);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-base);
    line-height: 1.6;
    resize: vertical;
    transition: border-color var(--transition-fast);
}

.tikz-app .caption-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(25 118 210 / 10%);
}

.tikz-app .caption-form-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-3);
    flex-wrap: wrap;
    gap: var(--spacing-3);
}

.tikz-app .caption-char-count {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.tikz-app .caption-actions {
    display: flex;
    gap: var(--spacing-3);
}

.tikz-app .caption-btn {
    padding: var(--spacing-3) var(--spacing-5);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.tikz-app .caption-btn-save {
    background: linear-gradient(90deg, #28a745 0%, #218838 100%);
    color: white;
}

.tikz-app .caption-btn-save:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgb(40 167 69 / 30%);
}

.tikz-app .caption-btn-cancel {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.tikz-app .caption-btn-cancel:hover {
    background: var(--bg-tertiary);
    transform: translateY(-1px);
}

/* Preview */
.tikz-app .caption-preview {
    margin-top: var(--spacing-4);
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--border-light);
}

.tikz-app .caption-preview h4 {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-2);
}

.tikz-app .caption-preview-content {
    background: var(--bg-secondary);
    padding: var(--spacing-4);
    border-radius: var(--radius-sm);
    min-height: 60px;
    font-size: var(--font-size-base);
    line-height: 1.7;
    white-space: pre-wrap; /* Preserve whitespace and line breaks */
}

/* Edit Button */
.tikz-app .edit-caption-btn {
    position: relative;
    z-index: 1;
    background: linear-gradient(90deg, #1976d2 0%, #1565c0 100%);
    color: white;
    padding: var(--spacing-3) var(--spacing-5);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin: 0 auto;
}

.tikz-app .edit-caption-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgb(25 118 210 / 30%);
}

.tikz-app .edit-icon {
    font-size: 1.1em;
}

/* Messages */
.tikz-app .caption-message {
    position: relative;
    z-index: 1;
    margin-top: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    text-align: center;
    display: none;
}

.tikz-app .caption-message.success {
    display: block;
    background: rgb(40 167 69 / 10%);
    color: #28a745;
    border: 1px solid rgb(40 167 69 / 30%);
}

.tikz-app .caption-message.error {
    display: block;
    background: rgb(220 53 69 / 10%);
    color: #dc3545;
    border: 1px solid rgb(220 53 69 / 30%);
}

/* ===== CAPTION RESPONSIVE BREAKPOINTS ===== */

@media (width < 576px) {
    .tikz-app .image-caption-section {
        padding: var(--spacing-4);
    }
    
    .tikz-app .caption-section-title {
        font-size: var(--font-size-lg);
    }
    
    .tikz-app .caption-content,
    .tikz-app .caption-edit-form {
        padding: var(--spacing-4);
    }
    
    .tikz-app .caption-textarea {
        min-height: 120px;
        font-size: var(--font-size-sm);
    }
    
    .tikz-app .caption-form-footer {
        flex-direction: column;
        align-items: stretch;
    }
    
    .tikz-app .caption-actions {
        width: 100%;
        justify-content: stretch;
    }
    
    .tikz-app .caption-btn {
        flex: 1;
        justify-content: center;
    }
}

@media (width >= 768px) {
    .tikz-app .caption-textarea {
        min-height: 180px;
    }
}