:root {
    --mol-primary: #2563eb;
    --mol-primary-hover: #1d4ed8;
    --mol-primary-light: #eff6ff;
    --mol-primary-glow: rgba(37, 99, 235, 0.2);
    
    --mol-accent-cyan: #0284c7;
    --mol-accent-emerald: #059669;

    --mol-bg-page: #f8fafc;
    --mol-bg-card: #ffffff;
    --mol-bg-card-subtle: #f1f5f9;

    --mol-border: #e2e8f0;
    --mol-border-focus: #3b82f6;

    --mol-text-main: #0f172a;
    --mol-text-muted: #64748b;
    --mol-text-subtle: #94a3b8;

    --mol-success: #10b981;
    --mol-success-hover: #059669;
    --mol-danger: #ef4444;
    --mol-danger-hover: #dc2626;

    --mol-radius-sm: 6px;
    --mol-radius: 12px;
    --mol-radius-lg: 16px;

    --mol-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --mol-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.06), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
    --mol-shadow-hover: 0 20px 35px -10px rgba(15, 23, 42, 0.12);

    --mol-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --mol-font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, "Courier New", monospace;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.mol-container,
.mol-container *,
.mol-container *::before,
.mol-container *::after,
.mol-notification,
.mol-notification *,
.mol-notification *::before,
.mol-notification *::after {
    box-sizing: border-box;
}

.mol-bg-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    background: 
        radial-gradient(circle at 15% 15%, var(--mol-primary-glow) 0%, transparent 40%),
        radial-gradient(circle at 85% 85%, rgba(6, 182, 212, 0.08) 0%, transparent 45%);
    opacity: 0.8;
}

.mol-molecule-decoration {
    position: fixed;
    color: rgba(37, 99, 235, 0.035);
    font-size: 16rem;
    pointer-events: none;
    z-index: 0;
}

.mol-molecule-1 {
    top: -2%;
    right: 2%;
    animation: molFloat 24s infinite alternate ease-in-out;
}

.mol-molecule-2 {
    bottom: 2%;
    left: 2%;
    animation: molFloat 30s infinite alternate-reverse ease-in-out;
}

@keyframes molFloat {
    0% { transform: translateY(0px) rotate(0deg) scale(1); }
    50% { transform: translateY(20px) rotate(8deg) scale(1.02); }
    100% { transform: translateY(-15px) rotate(-6deg) scale(0.98); }
}

.mol-container {
    max-width: 920px;
    width: 100%;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    color: var(--mol-text-main);
    font-family: var(--mol-font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.mol-header {
    text-align: center;
    margin-bottom: 2.25rem;
}

.mol-hero-badge {
    display: none;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--mol-primary);
    background: var(--mol-primary-light);
    padding: 0.35rem 0.95rem;
    border-radius: 999px;
    margin-bottom: 0.85rem;
    border: 1px solid rgba(37, 99, 235, 0.18);
}

.mol-title {
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -0.8px;
    line-height: 1.2;
    margin-bottom: 0.65rem;
    color: var(--mol-text-main);
}

.mol-title-gradient {
    background: linear-gradient(135deg, #1d4ed8, #0284c7 60%, #0d9488);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.mol-subtitle {
    font-size: 1.05rem;
    color: var(--mol-text-muted);
    max-width: 620px;
    margin: 0 auto;
}

/* Converter Card */
.mol-converter-card {
    background: var(--mol-bg-card);
    border-radius: var(--mol-radius-lg);
    box-shadow: var(--mol-shadow);
    border: 1px solid var(--mol-border);
    margin-bottom: 2rem;
    overflow: hidden;
    transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.mol-converter-card:hover {
    box-shadow: var(--mol-shadow-hover);
}

.mol-card-header {
    background: var(--mol-bg-card-subtle);
    padding: 1.15rem 1.6rem;
    font-weight: 700;
    font-size: 1.08rem;
    color: var(--mol-text-main);
    border-bottom: 1px solid var(--mol-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mol-card-header-left {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.mol-card-header-left i {
    color: var(--mol-primary);
}

.mol-card-body {
    padding: 1.75rem;
}

/* Format Selection Section */
.mol-format-selection {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.75rem;
    background: transparent;
    padding: 0;
    border: none;
}

.mol-format-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.mol-format-card:focus-within {
    border-color: #cbd5e1;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

.mol-format-card-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #1e293b;
    text-align: center;
    margin: 0;
    display: block;
    letter-spacing: 0.2px;
}

.mol-format-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    font-size: 1.5rem;
    padding: 0 0.25rem;
    user-select: none;
}

[data-theme="dark"] .mol-format-card {
    background: #1e293b;
    border-color: #334155;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .mol-format-card-title {
    color: #f1f5f9;
}

[data-theme="dark"] .mol-format-arrow {
    color: #60a5fa;
}

.mol-format-warning {
    display: flex;
    align-items: flex-start;
    gap: 0.95rem;
    padding: 1rem 1.35rem;
    margin-bottom: 1.5rem;
    border-radius: 10px;
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-left: 4px solid #f59e0b;
    color: #78350f;
    font-size: 0.9rem;
    line-height: 1.6;
    box-shadow: 0 1px 3px rgba(245, 158, 11, 0.08);
    animation: molFadeIn 0.25s ease-out;
}

.mol-format-warning i {
    font-size: 1.15rem;
    color: #d97706;
    margin-top: 0.15rem;
    flex-shrink: 0;
}

.mol-format-warning-text strong {
    color: #92400e;
    font-weight: 700;
}

[data-theme="dark"] .mol-format-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.25);
    border-left: 4px solid #f59e0b;
    color: #fef3c7;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .mol-format-warning i {
    color: #fbbf24;
}

[data-theme="dark"] .mol-format-warning-text strong {
    color: #fde68a;
}

@keyframes molFadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.mol-select-wrapper {
    position: relative;
    width: 100%;
}

.mol-select-wrapper select {
	height: auto;
    width: 100%;
    box-sizing: border-box;
    padding: 0.65rem 2.25rem 0.65rem 0.95rem;
    font-size: 0.88rem;
    font-weight: 500;
    font-family: var(--mol-font-sans);
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    background-color: #ffffff;
    color: #1e293b;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    line-height: 1.4;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.mol-select-wrapper select:hover {
    border-color: #cbd5e1;
}

.mol-select-wrapper select:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

[data-theme="dark"] .mol-select-wrapper select {
    background-color: #0f172a;
    border-color: #334155;
    color: #f1f5f9;
}

[data-theme="dark"] .mol-select-wrapper select:hover {
    border-color: #475569;
}

[data-theme="dark"] .mol-select-wrapper select:focus {
    border-color: #60a5fa;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.2);
}

.mol-select-wrapper select optgroup {
    font-weight: 700;
    font-size: 0.85rem;
    color: #475569;
    background: #f8fafc;
    padding: 6px 4px;
}

[data-theme="dark"] .mol-select-wrapper select optgroup {
    color: #94a3b8;
    background: #1e293b;
}

.mol-select-wrapper select option {
    font-weight: 500;
    font-size: 0.88rem;
    color: #1e293b;
    background: #ffffff;
    padding: 6px 10px;
}

[data-theme="dark"] .mol-select-wrapper select option {
    color: #f1f5f9;
    background: #0f172a;
}

.mol-select-icon {
    position: absolute;
    right: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: #64748b;
    font-size: 0.8rem;
}

[data-theme="dark"] .mol-select-icon {
    color: #94a3b8;
}

/* Tabs */
.mol-converter-tabs {
    margin-bottom: 1.5rem;
}

.mol-tab-buttons {
    display: flex;
    gap: 0.5rem;
    background: var(--mol-bg-card-subtle);
    padding: 0.35rem;
    border-radius: var(--mol-radius);
    border: 1px solid var(--mol-border);
}

.mol-tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    padding: 0.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--mol-font-sans);
    color: var(--mol-text-muted);
    border-radius: var(--mol-radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
}

.mol-tab-btn:hover {
    color: var(--mol-text-main);
}

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

.mol-tab-content {
    display: none;
    animation: fadeInTab 0.25s ease-in-out;
}

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

@keyframes fadeInTab {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* DropZone Area */
.mol-upload-area {
    border: 2px dashed var(--mol-border);
    border-radius: var(--mol-radius);
    padding: 2.75rem 1.5rem;
    text-align: center;
    background: var(--mol-bg-card-subtle);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.mol-upload-area:hover,
.mol-upload-area.drag-over {
    border-color: var(--mol-primary);
    background: var(--mol-primary-light);
    transform: translateY(-2px);
}

.mol-upload-icon-wrapper {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem auto;
    border-radius: 50%;
    background: var(--mol-primary-light);
    color: var(--mol-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.85rem;
    transition: transform var(--transition-fast);
}

.mol-upload-area:hover .mol-upload-icon-wrapper {
    transform: scale(1.08);
}

.mol-upload-area h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    color: var(--mol-text-main);
}

.mol-upload-area p {
    color: var(--mol-text-muted);
    font-size: 0.88rem;
    margin-bottom: 1.25rem;
}

.mol-browse-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 1.35rem;
    background: var(--mol-bg-card);
    color: var(--mol-text-main);
    font-weight: 600;
    font-size: 0.88rem;
    border-radius: var(--mol-radius-sm);
    border: 1px solid var(--mol-border);
    box-shadow: var(--mol-shadow-sm);
    transition: all var(--transition-fast);
}

.mol-upload-area:hover .mol-browse-btn {
    background: var(--mol-primary);
    color: #fff;
    border-color: var(--mol-primary);
}

.mol-file-input {
    display: none;
}

.mol-file-card {
    margin-top: 1rem;
    display: none;
    align-items: center;
    justify-content: space-between;
    background: var(--mol-bg-card-subtle);
    padding: 0.85rem 1.25rem;
    border-radius: var(--mol-radius);
    border: 1px solid var(--mol-border);
    animation: fadeInTab 0.2s ease-in-out;
}

.mol-file-card-info {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    overflow: hidden;
}

.mol-file-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--mol-primary-light);
    color: var(--mol-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.mol-file-details {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.mol-file-name-text {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--mol-text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mol-file-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    color: var(--mol-text-muted);
}

.mol-file-ext-tag {
    font-weight: 700;
    text-transform: uppercase;
    background: rgba(37, 99, 235, 0.1);
    color: var(--mol-primary);
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
}

.mol-file-remove-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--mol-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.mol-file-remove-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--mol-danger);
}

/* Paste Structure Tab */
.mol-converter-textarea {
    width: 100%;
    height: 190px;
    padding: 1rem;
    font-family: var(--mol-font-mono);
    font-size: 0.88rem;
    line-height: 1.5;
    border: 1px solid var(--mol-border);
    border-radius: var(--mol-radius-sm);
    background: var(--mol-bg-card);
    color: var(--mol-text-main);
    outline: none;
    resize: vertical;
    box-sizing: border-box;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.mol-converter-textarea:focus {
    border-color: var(--mol-primary);
    box-shadow: 0 0 0 3px var(--mol-primary-glow);
}

/* Collapsible Advanced Options Panel */
.mol-advanced-accordion {
    margin-top: 1.5rem;
    border: 1px solid var(--mol-border);
    border-radius: var(--mol-radius);
    background: var(--mol-bg-card-subtle);
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.mol-advanced-toggle {
    width: 100%;
    background: transparent;
    border: none;
    padding: 0.95rem 1.25rem;
    font-family: var(--mol-font-sans);
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--mol-text-main);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.mol-advanced-toggle:hover {
    background: rgba(0, 0, 0, 0.02);
}

.mol-advanced-toggle-left {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.mol-advanced-toggle-left i {
    color: var(--mol-primary);
}

.mol-advanced-chevron {
    transition: transform var(--transition-normal);
    color: var(--mol-text-muted);
}

.mol-advanced-accordion.open .mol-advanced-chevron {
    transform: rotate(180deg);
}

.mol-advanced-body {
    display: none;
    padding: 1.25rem;
    border-top: 1px solid var(--mol-border);
    background: var(--mol-bg-card);
}

.mol-advanced-accordion.open .mol-advanced-body {
    display: block;
    animation: fadeInTab 0.25s ease-in-out;
}

.mol-advanced-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.mol-option-card {
    background: var(--mol-bg-card-subtle);
    border: 1px solid var(--mol-border);
    border-radius: var(--mol-radius-sm);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.mol-option-card-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--mol-text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mol-option-card-title i {
    color: var(--mol-accent-cyan);
}

.mol-form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.mol-form-group label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--mol-text-muted);
}

.mol-form-control {
	height: auto;
    width: 100%;
    padding: 0.55rem 0.75rem;
    font-size: 0.88rem;
    font-family: var(--mol-font-sans);
    border: 1px solid var(--mol-border);
    border-radius: var(--mol-radius-sm);
    background: var(--mol-bg-card);
    color: var(--mol-text-main);
    outline: none;
    transition: border-color var(--transition-fast);
}

.mol-form-control:focus {
    border-color: var(--mol-primary);
}

.mol-checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    cursor: pointer;
    user-select: none;
}

.mol-checkbox-group input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--mol-primary);
    cursor: pointer;
}

.mol-checkbox-group span {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--mol-text-main);
}

/* Progress bar */
.mol-progress-container {
    margin: 1.5rem 0;
    display: none;
    animation: fadeInTab 0.2s ease-in-out;
}

.mol-progress-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.45rem;
    color: var(--mol-text-muted);
}

.mol-progress-stage {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mol-progress-stage i {
    color: var(--mol-primary);
}

.mol-progress-bar {
    width: 100%;
    height: 8px;
    background: var(--mol-bg-card-subtle);
    border-radius: 999px;
    overflow: hidden;
    position: relative;
    border: 1px solid var(--mol-border);
}

.mol-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #2563eb, #06b6d4, #10b981);
    border-radius: 999px;
    transition: width 0.2s ease;
    position: relative;
}

.mol-progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.4) 50%, rgba(255,255,255,0) 100%);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Action Buttons */
.mol-action-buttons {
    display: flex;
    gap: 1.25rem;
    margin-top: 1.75rem;
    align-items: center;
    justify-content: center;
}

.mol-btn {
    padding: 0.75rem 1.85rem;
    font-size: 0.98rem;
    font-weight: 600;
    font-family: var(--mol-font-sans);
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    text-decoration: none;
    line-height: 1.35;
}

.mol-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.mol-btn-primary {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #fff;
    border-color: #2563eb;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.28);
    min-width: 175px;
}

.mol-btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #1d4ed8, #1e40af);
    border-color: #1d4ed8;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.38);
    transform: translateY(-1px);
}

.mol-btn-secondary {
    background: #ffffff;
    color: #475569;
    border: 1px solid #cbd5e1;
    min-width: 115px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.mol-btn-secondary:hover:not(:disabled) {
    background: #f8fafc;
    color: #0f172a;
    border-color: #94a3b8;
    transform: translateY(-1px);
}

[data-theme="dark"] .mol-btn-secondary {
    background: #1e293b;
    border-color: #334155;
    color: #cbd5e1;
}

[data-theme="dark"] .mol-btn-secondary:hover:not(:disabled) {
    background: #334155;
    color: #f8fafc;
    border-color: #475569;
}

.mol-btn-success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #fff !important;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.mol-btn-success:hover {
    background: linear-gradient(135deg, #059669, #047857);
    box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4);
    transform: translateY(-1px);
}

.mol-spinner {
    display: none;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: molSpin 0.75s linear infinite;
}

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

.mol-shortcut-hint {
	display: none;
    text-align: center;
    margin-top: 0.75rem;
    font-size: 0.76rem;
    color: var(--mol-text-subtle);
}

.mol-shortcut-hint kbd {
    background: var(--mol-bg-card-subtle);
    border: 1px solid var(--mol-border);
    border-radius: 4px;
    padding: 0.15rem 0.35rem;
    font-family: var(--mol-font-mono);
    font-size: 0.72rem;
}

/* Results Section */
.mol-results-card {
    border-top: 3px solid var(--mol-success);
}

.mol-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.1rem;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.mol-results-toolbar {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.mol-image-preview-wrapper {
    text-align: center;
    padding: 2rem;
    background: var(--mol-bg-card-subtle);
    border: 1px solid var(--mol-border);
    border-radius: var(--mol-radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.mol-image-preview-wrapper img {
    max-width: 100%;
    max-height: 480px;
    border-radius: 8px;
    box-shadow: var(--mol-shadow);
    background: #fff;
    transition: transform var(--transition-fast);
}

.mol-image-preview-wrapper img:hover {
    transform: scale(1.02);
}

/* Preview Truncation Notice Box */
.mol-preview-notice {
    margin-top: 0.95rem;
    padding: 1rem 1.5rem;
    border: 1px dashed #94a3b8;
    border-radius: 8px;
    background: #f8fafc;
    text-align: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.86rem;
    line-height: 1.6;
    color: #475569;
}

.mol-preview-notice-line1 {
    font-weight: 500;
    color: #334155;
    margin-bottom: 0.2rem;
}

.mol-preview-notice-line2 {
    font-weight: 500;
    color: #475569;
}

.mol-preview-notice-line2 strong {
    color: #2563eb;
    font-weight: 700;
}

[data-theme="dark"] .mol-preview-notice {
    background: #0b1329;
    border-color: #334155;
    color: #94a3b8;
}

[data-theme="dark"] .mol-preview-notice-line1 {
    color: #cbd5e1;
}

[data-theme="dark"] .mol-preview-notice-line2 {
    color: #94a3b8;
}

[data-theme="dark"] .mol-preview-notice-line2 strong {
    color: #60a5fa;
}

/* Notification Popup Toast */
.mol-notification {
    position: fixed;
    bottom: 28px;
    left: 50%;
    right: auto;
    padding: 0.85rem 1.4rem;
    border-radius: 999px;
    background: #0f172a;
    color: #f8fafc;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.35), 0 4px 10px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 999999;
    opacity: 0;
    transform: translate(-50%, 20px) scale(0.95);
    transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
    max-width: 90vw;
    width: max-content;
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.mol-notification.show {
    opacity: 1;
    transform: translate(-50%, 0) scale(1);
    pointer-events: auto;
}

.mol-notification.success {
    background: #064e3b;
    border: 1px solid rgba(52, 211, 153, 0.4);
    color: #ecfdf5;
    box-shadow: 0 10px 30px -5px rgba(6, 78, 59, 0.45);
}

.mol-notification.success i {
    color: #34d399;
}

.mol-notification.error {
    background: #7f1d1d;
    border: 1px solid rgba(248, 113, 113, 0.4);
    color: #fef2f2;
    box-shadow: 0 10px 30px -5px rgba(127, 29, 29, 0.45);
}

.mol-notification.error i {
    color: #f87171;
}

.mol-notification.warning {
    background: #78350f;
    border: 1px solid rgba(251, 191, 36, 0.4);
    color: #fffbeb;
    box-shadow: 0 10px 30px -5px rgba(120, 53, 15, 0.45);
}

.mol-notification.warning i {
    color: #fbbf24;
}

.mol-notification.info {
    background: #1e3a8a;
    border: 1px solid rgba(96, 165, 250, 0.4);
    color: #eff6ff;
    box-shadow: 0 10px 30px -5px rgba(30, 58, 138, 0.45);
}

.mol-notification.info i {
    color: #60a5fa;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .mol-container {
        padding-top: 1.5rem;
    }

    .mol-format-selection {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .mol-format-arrow {
        transform: rotate(90deg);
        margin: 0.15rem auto;
    }

    .mol-advanced-grid {
        grid-template-columns: 1fr;
    }

    .mol-action-buttons {
        flex-direction: column-reverse;
        width: 100%;
        gap: 0.75rem;
    }

    .mol-btn {
        width: 100%;
        padding: 0.8rem 1.4rem;
        font-size: 1rem;
    }

    .mol-title {
        font-size: 1.85rem;
    }
}