.text-gradient-indigo {
    background: var(--grad-indigo);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.tool-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: calc(var(--nav-height) + 2rem) 2rem 4rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    transition: var(--transition-smooth);
}

.back-link:hover {
    color: var(--accent-indigo);
    transform: translateX(-4px);
}

.back-link svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    transform: rotate(180deg);
}

.tool-grid-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 1.5rem;
}

@media (max-width: 992px) {
    .tool-grid-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .tool-container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    .tool-panel {
        padding: 1.25rem;
    }
}

.tool-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.tool-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--grad-indigo);
    opacity: 0.7;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 1rem;
}

.panel-title {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.panel-title svg {
    width: 20px;
    height: 20px;
    color: var(--accent-indigo);
}

.header-actions {
    display: flex;
    gap: 0.5rem;
}

.action-btn-sm {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.4rem 0.8rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.action-btn-sm:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--accent-indigo);
    color: white;
}

.editor-container {
    position: relative;
}

.editor-textarea {
    width: 100%;
    height: 450px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    padding: 1.25rem;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.95rem;
    line-height: 1.6;
    resize: none;
    outline: none;
    transition: var(--transition-smooth);
}

.editor-textarea:focus {
    border-color: var(--accent-indigo);
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.15);
    background: rgba(0, 0, 0, 0.35);
}

/* Preview Display */
.preview-pane-tabs {
    display: flex;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 0.15rem;
}

.preview-tab {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.4rem;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-smooth);
    text-align: center;
}

.preview-tab.active {
    background: rgba(99, 102, 241, 0.1);
    color: white;
}

.preview-window {
    width: 100%;
    height: 450px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 1.25rem;
    overflow-y: auto;
    color: var(--text-primary);
    transition: var(--transition-smooth);
}

/* Rendered HTML Styling inside preview window */
.rendered-html {
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    line-height: 1.6;
    color: #cbd5e1;
}

.rendered-html h1, .rendered-html h2, .rendered-html h3 {
    font-family: 'Be Vietnam Pro', sans-serif;
    color: white;
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}
.rendered-html h1 { font-size: 1.6rem; border-bottom: 1px solid rgba(255, 255, 255, 0.1); padding-bottom: 0.25rem; }
.rendered-html h2 { font-size: 1.3rem; }
.rendered-html h3 { font-size: 1.1rem; }

.rendered-html p { margin-bottom: 1rem; }

.rendered-html code {
    background: rgba(255, 255, 255, 0.08);
    color: #f472b6;
    padding: 0.15rem 0.35rem;
    border-radius: var(--border-radius-sm);
    font-family: monospace;
    font-size: 0.85rem;
}

.rendered-html pre {
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 1rem;
    margin-bottom: 1rem;
    overflow-x: auto;
}

.rendered-html pre code {
    background: transparent;
    color: #a5b4fc;
    padding: 0;
    font-size: 0.85rem;
}

.rendered-html blockquote {
    border-left: 4px solid var(--accent-indigo);
    padding-left: 1rem;
    margin-left: 0;
    color: var(--text-secondary);
    font-style: italic;
    background: rgba(99, 102, 241, 0.03);
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    border-radius: 0 4px 4px 0;
    margin-bottom: 1rem;
}

.rendered-html ul, .rendered-html ol {
    margin-bottom: 1rem;
    padding-left: 1.25rem;
}

.rendered-html li {
    margin-bottom: 0.25rem;
}

.rendered-html a {
    color: var(--accent-indigo);
    text-decoration: none;
    border-bottom: 1px dashed var(--accent-indigo);
}

.rendered-html a:hover {
    color: white;
    border-bottom-style: solid;
}

/* Plain HTML code window styling */
.html-code-window {
    display: none;
    width: 100%;
    height: 450px;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 1.25rem;
    font-family: monospace;
    font-size: 0.85rem;
    color: #a5b4fc;
    overflow-y: auto;
    white-space: pre-wrap;
}

.panel-footer-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

.btn-action-main {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.btn-action-main:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--accent-indigo);
    transform: translateY(-2px);
}

.btn-action-main.success {
    background: rgba(16, 185, 129, 0.15) !important;
    border-color: #10b981 !important;
    color: #34d399 !important;
}

/* Mobile Tab Styles */
.mobile-tabs-container {
    display: none;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 0.25rem;
    margin-bottom: 1.5rem;
}

.mobile-tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-tab-btn.active {
    background: rgba(99, 102, 241, 0.1);
    color: white;
    box-shadow: inset 0 0 10px rgba(99, 102, 241, 0.1);
}

@media (max-width: 992px) {
    .mobile-tabs-container {
        display: flex;
    }
    .tool-panel {
        display: none;
    }
    .active-panel {
        display: flex !important;
    }
}