:root{--layout-upsbar-height:32px;--layout-navbar-height:60px;--layout-header-offset:calc(var(--layout-upsbar-height) + var(--layout-navbar-height));--sf-nav-control-h:40px;--space-px:1px;--radius-pill:var(--radius-full);--font-mono:ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--sf-container-max:1200px;--sf-container-narrow:760px;--sf-gutter:clamp(1rem, 4vw, 2.5rem);--sf-section-py:clamp(3.5rem, 7vw, 6rem);--sf-section-py-sm:clamp(2.5rem, 5vw, 4rem)}html,body{margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:var(--font-family-base);font-weight:var(--font-weight-base);line-height:var(--line-height-base);-webkit-font-smoothing:antialiased}*,:before,:after{box-sizing:border-box}h1,h2,h3,h4,h5,h6{font-family:var(--font-family-heading);font-weight:var(--font-weight-heading);color:var(--color-headline);line-height:var(--heading-line-height);letter-spacing:var(--heading-letter-spacing)}.sf-hero__eyebrow,.sf-ph__eyebrow,.sf-tc__eyebrow,.sf-pg__eyebrow,.sf-cta__eyebrow{font-family:var(--font-family-base);font-style:normal;font-weight:var(--font-weight-bold);color:var(--color-accent);letter-spacing:.1em;text-transform:uppercase;font-size:.75rem}a:not(.sf-nav__logo):not([class*=btn]):hover,.sf-nav__menu a:hover,.sf-nav__menu-trigger:hover{color:var(--color-accent)}.sf-nav{border-bottom:2px solid var(--color-primary)}.sf-hero__cta--primary,.sf-cta__btn--primary{background:var(--color-primary);color:var(--color-primary-contrast);border:2px solid var(--color-primary);border-radius:var(--radius-sm);font-weight:var(--font-weight-semibold);transition:background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast)}.sf-hero__cta--primary:hover,.sf-cta__btn--primary:hover{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-primary)}.sf-hero__cta--secondary,.sf-cta__btn--secondary{color:var(--color-primary);border:2px solid var(--color-primary);border-radius:var(--radius-sm);font-weight:var(--font-weight-semibold);transition:background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);background:0 0}.sf-hero__cta--secondary:hover,.sf-cta__btn--secondary:hover{background:var(--color-primary-soft);border-color:var(--color-accent);color:var(--color-accent)}:focus-visible{outline:var(--focus-outline-width) solid var(--focus-outline-color);outline-offset:2px}.sf-container{width:100%;max-width:var(--sf-container-max);padding-inline:var(--sf-gutter);margin-inline:auto}.sf-container--narrow{max-width:var(--sf-container-narrow)}.sf-section{padding-block:var(--sf-section-py)}.sf-section--sm{padding-block:var(--sf-section-py-sm)}.sf-section--alt{background:var(--color-bg-subtle)}.sf-section--brand{background:var(--color-primary);color:var(--color-primary-contrast)}.sf-section__head{margin-bottom:clamp(2rem,4vw,3rem)}.sf-section__head--center{text-align:center}.sf-section__head--center .sf-intro{margin-inline:auto}.sf-eyebrow{font-family:var(--font-family-base);font-size:var(--font-size-xs);font-weight:var(--font-weight-bold);letter-spacing:.16em;text-transform:uppercase;color:var(--color-accent);margin-bottom:.75rem;display:inline-block}.sf-heading{font-family:var(--font-family-heading);font-size:clamp(1.6rem,3.2vw,2.4rem);font-weight:var(--font-weight-heading,600);line-height:var(--heading-line-height,1.15);letter-spacing:var(--heading-letter-spacing,-.02em);color:var(--color-headline);margin:0}.sf-heading--sm{font-size:clamp(1.3rem,2.4vw,1.7rem)}.sf-intro{max-width:60ch;color:var(--color-text-muted);font-size:var(--font-size-lg);margin:.85rem 0 0;line-height:1.6}.sf-divider{background:var(--color-accent);border:0;width:56px;height:2px;margin:1.25rem 0 0}.sf-section__head--center .sf-divider{margin-inline:auto}.sf-btn{font-family:var(--font-family-base);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);text-align:center;cursor:pointer;border-radius:var(--radius-sm);transition:background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);border:2px solid #0000;justify-content:center;align-items:center;gap:.5rem;padding:.85rem 1.75rem;line-height:1;text-decoration:none;display:inline-flex}.sf-btn:active{transform:translateY(1px)}.sf-btn--primary{background:var(--color-primary);color:var(--color-primary-contrast);border-color:var(--color-primary)}.sf-btn--primary:hover{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-primary)}.sf-btn--secondary{color:var(--color-primary);border-color:var(--color-primary);background:0 0}.sf-btn--secondary:hover{background:var(--color-primary-soft);border-color:var(--color-accent);color:var(--color-accent)}.sf-btn--ghost{color:var(--color-primary);letter-spacing:.02em;border:0;border-bottom:2px solid var(--color-accent);padding-inline:0;background:0 0;border-radius:0;padding-bottom:2px}.sf-btn--ghost:hover{color:var(--color-accent)}.sf-btn--block{width:100%}.sf-btn:disabled,.sf-btn[aria-disabled=true]{opacity:.55;cursor:not-allowed;pointer-events:none}.sf-form-field{gap:var(--space-2);flex-direction:column;display:flex}.sf-form-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text)}.sf-form-control{box-sizing:border-box;width:100%;padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);font-family:inherit;font-size:var(--font-size-md);color:var(--color-text);background:var(--color-bg)}.sf-form-control:focus{border-color:var(--color-primary);box-shadow:var(--shadow-focus);outline:none}.sf-form-control[aria-invalid=true]{border-color:var(--color-danger)}.sf-form-control:disabled{opacity:.6;cursor:not-allowed}textarea.sf-form-control{resize:vertical;min-height:120px}.sf-form-help{font-size:var(--font-size-xs);color:var(--color-text-muted)}.sf-form-error{font-size:var(--font-size-xs);color:var(--color-danger)}.sf-card{background:var(--color-bg-surface);border:1px solid var(--color-border-soft);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base)}.sf-card--interactive:hover{box-shadow:var(--shadow-md);border-color:var(--color-primary);transform:translateY(-3px)}@keyframes preview-block-flash{0%{outline-color:color-mix(in srgb, var(--color-primary) 60%, transparent)}to{outline-color:#0000}}.preview-block-flash{outline-offset:-3px;outline:3px solid #0000;animation:.7s ease-out preview-block-flash}.sf-block-pick [data-block-idx]>*{cursor:pointer}.sf-block-pick [data-block-idx]>:hover{outline:2px dashed var(--color-primary);outline-offset:-2px}