.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}.tool-section{padding:0 0 48px}.tool-container{width:100%;max-width:640px;margin:0 auto}.hmac-form{display:flex;flex-direction:column;gap:20px;padding:32px;background:var(--color-surface-container-lowest);border:1px solid var(--color-border-subtle);border-radius:var(--radius-xl)}.hmac-field{display:flex;flex-direction:column;gap:6px}.hmac-label{font-size:14px;font-weight:600;color:var(--color-on-surface)}.hmac-input{width:100%;padding:12px 16px;border:1px solid var(--color-outline-variant);border-radius:var(--radius-lg);font-family:var(--font-code);font-size:15px;background:var(--color-surface-container-low);color:var(--color-on-surface);outline:none;transition:border-color var(--transition-fast);box-sizing:border-box}.hmac-input:focus{border-color:var(--color-primary)}.hmac-textarea{width:100%;min-height:120px;padding:12px 16px;border:1px solid var(--color-outline-variant);border-radius:var(--radius-lg);font-family:var(--font-code);font-size:15px;background:var(--color-surface-container-low);color:var(--color-on-surface);outline:none;transition:border-color var(--transition-fast);box-sizing:border-box;resize:vertical}.hmac-textarea:focus{border-color:var(--color-primary)}.hmac-options{display:flex;gap:16px;flex-wrap:wrap}.hmac-opt-group{display:flex;flex-direction:column;gap:6px;flex:1;min-width:160px}.hmac-opt-label{font-size:13px;font-weight:500;color:var(--color-on-surface-variant)}.hmac-select{padding:10px 14px;border:1px solid var(--color-outline-variant);border-radius:var(--radius-lg);font-size:14px;font-family:var(--font-body);background:var(--color-surface-container-low);color:var(--color-on-surface);cursor:pointer;outline:none;transition:border-color var(--transition-fast)}.hmac-select:focus{border-color:var(--color-primary)}.hmac-actions{display:flex;gap:12px;flex-wrap:wrap}.hmac-output{display:flex;flex-direction:column;gap:6px}.hmac-result-row{display:flex;gap:8px;align-items:center}.hmac-result-input{flex:1;padding:12px 16px;border:1px solid var(--color-outline-variant);border-radius:var(--radius-lg);font-family:var(--font-code);font-size:14px;background:var(--color-surface-container-low);color:var(--color-on-surface);outline:none;box-sizing:border-box}.hmac-result-input::selection{background:var(--color-primary);color:var(--color-on-primary)}.hmac-toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);padding:12px 24px;border-radius:var(--radius-lg);background:var(--color-primary);color:var(--color-on-primary);font-size:14px;font-weight:500;z-index:9999;opacity:0;transition:opacity var(--transition-fast);pointer-events:none}.hmac-toast.show{opacity:1}.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}.related-section{padding:0 0 64px}.related-section .container{max-width:1200px;margin:0 auto;padding:0 20px}.related-heading{font-family:var(--font-headline);font-size:var(--text-headline-lg);font-weight:600;text-align:center;color:var(--color-on-surface);margin:0 0 48px}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-gutter)}@media (max-width: 768px){.related-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 480px){.related-grid{grid-template-columns:1fr}}.related-card{display:block;padding:24px;background:var(--color-surface-container-lowest);border:1px solid var(--color-border-subtle);border-radius:var(--radius-xl);text-decoration:none;transition:all var(--transition-normal)}.related-card:hover{box-shadow:var(--shadow-md);border-color:var(--color-primary);transform:translateY(-2px)}.related-card .related-icon{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--color-primary-fixed);color:var(--color-primary);margin-bottom:16px}.related-card h3{font-family:var(--font-headline);font-size:var(--text-title-sm);font-weight:600;color:var(--color-on-surface);margin:0 0 8px}.related-card p{font-size:var(--text-body-sm);color:var(--color-on-surface-variant);margin:0;line-height:var(--text-body-sm-line)}@media (max-width: 768px){.tool-hero{padding:40px 16px 24px}.tool-hero h1{font-size:32px;line-height:40px}.hmac-form{padding:20px}.hmac-options{flex-direction:column}}