.main-bottom-pad{padding-bottom:64px}.tool-hero{text-align:center;padding:64px 20px 32px}.tool-hero h1{font-family:var(--font-headline);font-size:var(--text-headline-xl);font-weight:700;line-height:var(--text-headline-xl-line);letter-spacing:-.02em;color:var(--color-on-background);margin:0 0 16px}.tool-hero .hero-sub{font-size:var(--text-body-lg);line-height:var(--text-body-lg-line);color:var(--color-secondary);max-width:42rem;margin:0 auto 32px}.regex-tool-container{display:flex;flex-direction:column;gap:24px}.regex-input-block{display:flex;flex-direction:column;gap:8px}.regex-input-block label{font-family:var(--font-code);font-size:var(--text-label-md);font-weight:500;color:#000}#regex-pattern{width:100%;padding:12px 16px;border:1px solid var(--color-border-subtle);border-radius:var(--radius-lg);font-family:var(--font-code);font-size:var(--text-label-md);background:var(--color-surface-container-lowest);color:var(--color-on-surface);outline:none}#regex-pattern:focus{border-color:var(--color-primary)}#regex-error{color:var(--color-error);font-size:13px;min-height:20px}.regex-flags{display:flex;gap:8px;flex-wrap:wrap}.flag-btn{display:flex;align-items:center;gap:6px;padding:6px 14px;border:1px solid var(--color-border-subtle);border-radius:var(--radius-lg);background:var(--color-surface-container-lowest);color:var(--color-on-surface);cursor:pointer;font-size:13px;font-family:var(--font-body);transition:all var(--transition-fast)}.flag-btn.active{background:var(--color-primary);color:var(--color-on-primary);border-color:var(--color-primary)}.flag-btn .flag-letter{font-weight:700;font-family:var(--font-code)}.flag-btn .flag-desc{opacity:.7}.regex-examples{margin-top:8px}.regex-examples>label{font-size:13px;color:var(--color-outline-variant);margin-bottom:8px;display:block;font-weight:500}.example-buttons{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}.example-buttons .btn{padding:4px 12px;border-radius:var(--radius-xl);font-size:12px;cursor:pointer;border:1px solid var(--color-border-subtle);background:var(--color-surface-container-lowest);color:var(--color-on-surface);transition:all var(--transition-fast);font-family:var(--font-body);white-space:nowrap}.example-buttons .btn:hover{background:var(--color-surface-container-low)}#example-explanation{font-size:13px;color:var(--color-on-surface-variant);padding:10px 14px;background:var(--color-surface-container);border-radius:var(--radius-lg);min-height:20px}#test-string{flex:1;min-height:160px;padding:16px;border:1px solid var(--color-border-subtle);border-radius:var(--radius-lg);resize:vertical;outline:none;font-family:var(--font-code);font-size:var(--text-label-md);line-height:var(--text-label-md-line);background:var(--color-surface-container-lowest);color:var(--color-on-surface)}#test-string:focus{border-color:var(--color-primary)}.match-preview{border:1px solid var(--color-border-subtle);border-radius:var(--radius-xl);overflow:hidden;background:var(--color-surface-container-lowest)}.match-preview-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:var(--color-surface-container);border-bottom:1px solid var(--color-border-subtle);font-size:var(--text-label-md);font-weight:500}.match-count-badge{background:var(--color-primary);color:var(--color-on-primary);padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600}#matches-highlight{padding:16px;min-height:80px;font-family:var(--font-code);font-size:var(--text-label-md);line-height:1.7;color:var(--color-on-surface);white-space:pre-wrap;word-break:break-all}#matches-highlight .match-highlight{background:#fde047;color:#1e293b;border-radius:2px;padding:1px 0}html.dark #matches-highlight .match-highlight{background:var(--color-warning)}.regex-results{margin-top:16px}.result-tabs{display:flex;gap:0;border-bottom:1px solid var(--color-border-subtle);margin-bottom:16px}.result-tab-btn{padding:10px 20px;border:none;background:none;color:var(--color-secondary);cursor:pointer;font-size:14px;font-weight:500;font-family:var(--font-body);position:relative}.result-tab-btn.active{color:var(--color-primary)}.result-tab-btn.active:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:2px;background:var(--color-primary)}.result-tab-content{display:none}.result-tab-content.active{display:block}.match-actions{display:flex;gap:8px;margin-bottom:12px}.match-actions .btn{padding:4px 12px;border-radius:var(--radius-xl);font-size:12px;cursor:pointer;border:1px solid var(--color-border-subtle);background:var(--color-surface-container-lowest);color:var(--color-on-surface);font-family:var(--font-body)}.match-table{width:100%;border-collapse:collapse;font-size:13px}.match-table th{text-align:left;padding:8px 12px;background:var(--color-surface-container);color:var(--color-on-surface);font-weight:600;border-bottom:1px solid var(--color-border-subtle)}.match-table td{padding:8px 12px;border-bottom:1px solid var(--color-border-subtle);color:#000}.match-table code{font-family:var(--font-code);font-size:13px;background:var(--color-surface-container);padding:2px 6px;border-radius:4px}html.dark .match-table code{color:var(--color-on-surface)}.match-details-container,.groups-container{font-size:13px;color:var(--color-on-surface-variant)}.group-block{margin-bottom:16px}.group-block h4{font-size:14px;margin:0 0 8px;color:var(--color-on-surface)}.placeholder{color:var(--color-outline-variant);font-style:italic}#replace-pattern{width:100%;padding:10px 14px;border:1px solid var(--color-border-subtle);border-radius:var(--radius-lg);font-family:var(--font-code);font-size:14px;background:var(--color-surface-container-lowest);color:var(--color-on-surface);outline:none}#replace-pattern:focus{border-color:var(--color-primary)}.replace-output-container{position:relative}#replace-result{width:100%;min-height:120px;padding:16px;border:1px solid var(--color-border-subtle);border-radius:var(--radius-lg);font-family:var(--font-code);font-size:var(--text-label-md);background:#0f172a;color:#e2e8f0;resize:vertical;outline:none}.replace-copy-btn{position:absolute;top:8px;right:8px;padding:4px 12px;border-radius:var(--radius-xl);font-size:12px;cursor:pointer;border:1px solid var(--color-border-subtle);background:var(--color-surface-container-highest);color:var(--color-on-surface);font-family:var(--font-body);z-index:2}.input-group{margin-bottom:0}.input-group label{display:block;font-family:var(--font-code);font-size:var(--text-label-md);font-weight:500;margin-bottom:8px;color:var(--color-on-surface)}.input-text{width:100%;padding:12px 16px;border:1px solid var(--color-border-subtle);border-radius:var(--radius-lg);font-family:var(--font-code);font-size:var(--text-label-md);background:var(--color-surface-container-lowest);color:var(--color-on-surface);outline:none}.input-text:focus{border-color:var(--color-primary)}.toast{position:fixed;bottom:32px;left:50%;transform:translate(-50%) translateY(20px);z-index:99999;padding:10px 24px;border-radius:999px;font-size:14px;font-weight:500;color:#fff;background:#1e293b;box-shadow:0 8px 32px #0000004d;opacity:0;transition:all .2s;pointer-events:none}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}html.dark .toast{background:var(--color-surface-container-highest)}.feat-section{padding:64px 0}.feat-section .feat-heading{font-family:var(--font-headline);font-size:var(--text-headline-lg);font-weight:600;text-align:center;margin:0 0 48px;color:var(--color-on-surface)}.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-gutter)}@media (max-width: 1024px){.feat-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 480px){.feat-grid{grid-template-columns:1fr}}.feat-card{padding:32px;background:var(--color-surface-container-lowest);border:1px solid var(--color-border-subtle);border-radius:var(--radius-xl);transition:all var(--transition-normal)}.feat-card:hover{box-shadow:var(--shadow-md);border-color:var(--color-primary)}.feat-card .feat-icon{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:24px}.feat-card .feat-icon.feat-primary{background:var(--color-primary-fixed);color:var(--color-primary)}.feat-card .feat-icon.feat-tertiary{background:var(--color-tertiary-fixed);color:var(--color-tertiary)}.feat-card .feat-icon.feat-secondary{background:var(--color-secondary-fixed);color:var(--color-on-secondary-fixed)}.feat-card .feat-icon.feat-error{background:var(--color-error-container);color:var(--color-on-error-container)}.feat-card h3{font-family:var(--font-headline);font-size:var(--text-title-md);font-weight:600;line-height:var(--text-title-md-line);margin:0 0 12px;color:var(--color-on-surface)}.feat-card p{font-size:var(--text-body-md);color:var(--color-on-surface-variant);margin:0;line-height:var(--text-body-md-line)}.faq-section-v3{padding:80px 0}.faq-section-v3 h2{font-family:var(--font-headline);font-size:var(--text-headline-lg);font-weight:600;line-height:var(--text-headline-lg-line);letter-spacing:-.01em;color:var(--color-on-surface);margin:0 0 48px}.faq-section-v3 .faq-cat-title{font-family:var(--font-headline);font-size:var(--text-title-md);font-weight:600;color:var(--color-on-surface);margin:32px 0 16px}.faq-section-v3 details{border:1px solid var(--color-border-subtle);border-radius:var(--radius-xl);overflow:hidden;background:var(--color-surface-container-low);margin-bottom:8px}.faq-section-v3 details summary{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;cursor:pointer;font-family:var(--font-headline);font-size:var(--text-title-md);font-weight:600;color:var(--color-on-surface);list-style:none}.faq-section-v3 details summary::-webkit-details-marker{display:none}.faq-section-v3 details summary .mat-icon{transition:transform var(--transition-normal);color:var(--color-outline)}.faq-section-v3 details[open] summary .mat-icon{transform:rotate(180deg)}.faq-section-v3 details .det-content{padding:0 24px 24px;color:var(--color-on-surface-variant);font-size:var(--text-body-md);line-height:var(--text-body-md-line);border-top:1px solid var(--color-border-subtle);margin:0 24px}.faq-section-v3 details .det-content pre{background:var(--color-code-bg);color:#fff;padding:12px 16px;border-radius:var(--radius-lg);font-family:var(--font-code);font-size:var(--text-code-sm);line-height:1.5;overflow-x:auto;margin:8px 0;white-space:pre-wrap}@media (max-width: 768px){.tool-hero{padding:40px 16px 24px}.tool-hero h1{font-size:32px;line-height:40px}.feat-grid{grid-template-columns:1fr}}