.design-partners-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1rem;max-width:980px;margin:0 auto}.design-partner-logo{aspect-ratio:3 / 1;display:flex;align-items:center;justify-content:center;background:var(--bg-surface-solid);border:1px solid var(--border-default);border-radius:var(--radius-md);color:var(--text-muted);font-weight:600;font-size:.9rem;letter-spacing:.04em;text-transform:uppercase}.design-partners-note{text-align:center;margin:1.5rem auto 0;color:var(--text-muted);font-size:.875rem}.design-partners-note a{color:var(--brand-primary);text-decoration:underline}@media(max-width:768px){.design-partners-grid{grid-template-columns:repeat(2,1fr)}}.founding-banner{width:100%;background:var(--bg-surface-solid);border:1px solid var(--border-default);border-left:4px solid var(--brand-primary);border-radius:var(--radius-lg);padding:2.75rem 2.5rem;text-align:left;display:grid;grid-template-columns:1fr 1fr;gap:2.5rem;align-items:start}.founding-banner__lhs>.founding-banner__badge{margin-bottom:1.25rem}.founding-banner__rhs{display:flex;flex-direction:column;gap:1.5rem}@media(max-width:900px){.founding-banner{grid-template-columns:1fr;gap:1.5rem;padding:2rem 1.75rem}}.founding-banner__badge{display:inline-block;font-size:.72rem;font-weight:700;color:var(--brand-primary);background:var(--brand-primary-light);padding:.35rem .75rem;border-radius:var(--radius-full);letter-spacing:.08em;text-transform:uppercase;margin-bottom:1.25rem}.founding-banner__title{font-size:clamp(1.4rem,2.5vw,1.875rem);font-weight:700;color:var(--text-heading);margin:0 0 1rem;font-family:var(--font-display);letter-spacing:-.02em}.founding-banner__desc{color:var(--text-body);line-height:1.65;margin:0 0 1.25rem;font-size:1rem}.founding-banner__perks{list-style:none;padding:0;margin:0 0 1.5rem;display:grid;gap:.55rem}.founding-banner__perks li{color:var(--text-body);font-size:.92rem;padding-left:1.25rem;position:relative;line-height:1.5}.founding-banner__perks li:before{content:"✓";position:absolute;left:0;color:var(--color-success-strong);font-weight:700}@media(max-width:640px){.founding-banner{padding:1.75rem 1.5rem}}.platform-card{background:var(--bg-surface-solid);border:1px solid var(--border-default);border-radius:var(--radius-lg);padding:2rem;display:flex;flex-direction:column;height:100%;transition:border-color var(--transition-fast),transform var(--transition-fast),box-shadow var(--transition-fast)}.platform-card:hover{border-color:var(--brand-primary-light);transform:translateY(-2px);box-shadow:var(--shadow-lg)}.platform-card__header{display:flex;align-items:center;gap:1.25rem;margin-bottom:1.25rem;flex-wrap:wrap}.platform-card__header>div:not(.platform-card__badge){flex:1 1 0;min-width:0}.platform-card__logo{width:48px;height:48px;flex-shrink:0}.platform-card__header h3{font-size:1.5rem;font-weight:700;color:var(--text-heading);margin:0;font-family:var(--font-display);letter-spacing:-.02em}.platform-card__subtitle{margin:.15rem 0 0;font-size:.92rem;color:var(--text-muted)}.platform-card__badge{flex-shrink:0}.platform-card__intro{color:var(--text-body);line-height:1.65;margin:0 0 1.5rem;font-size:.98rem}.platform-card__features{list-style:none;padding:0;margin:0 0 2rem;display:grid;gap:.85rem;flex-grow:1}.platform-card__features li{display:flex;align-items:flex-start;gap:.75rem;font-size:.92rem;line-height:1.55;color:var(--text-body)}.platform-card__features li svg{color:var(--brand-primary);flex-shrink:0;margin-top:.2rem}.platform-card__features li strong{color:var(--text-heading)}.platform-card .btn{align-self:flex-start}@media(max-width:640px){.platform-card{padding:1.5rem 1.25rem}.platform-card .btn{width:100%;align-self:stretch}}.stack-layers{width:100%;background:var(--bg-surface-solid);border:1px solid var(--border-default);border-radius:var(--radius-lg);overflow:hidden}.stack-layers__row{display:grid;grid-template-columns:1fr 1.3fr 1.3fr}.stack-layers__row+.stack-layers__row{border-top:1px solid var(--border-default)}.stack-layers__cell{padding:1.5rem 1.6rem;font-size:.95rem;line-height:1.6;color:var(--text-body);border-left:1px solid var(--border-default)}.stack-layers__cell:first-child{border-left:none}.stack-layers__cell strong{color:var(--text-heading)}.stack-layers__hint{display:block;margin-top:.35rem;font-size:.82rem;color:var(--text-muted);line-height:1.45}.stack-layers__head .stack-layers__cell{background:var(--bg-surface-alt, rgba(0, 0, 0, .03));font-size:.76rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);padding:1rem 1.6rem}.stack-layers__cell--sparcle{background:var(--brand-primary-light);border-left:4px solid var(--brand-primary)}.stack-layers__head .stack-layers__cell--sparcle{color:var(--brand-primary)}.stack-layers__footnote{text-align:center;margin:1.5rem auto 0;color:var(--text-muted);font-size:.9rem;max-width:720px;line-height:1.55}@media(max-width:820px){.stack-layers__row{grid-template-columns:1fr}.stack-layers__head{display:none}.stack-layers__cell{border-left:none;border-top:1px solid var(--border-default);padding:1.25rem 1.4rem}.stack-layers__row>.stack-layers__cell:first-child{border-top:none}.stack-layers__cell--sparcle{border-left:4px solid var(--brand-primary)}.stack-layers__cell[data-label]:before{content:attr(data-label);display:block;font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);margin-bottom:.5rem}.stack-layers__cell--sparcle[data-label]:before{color:var(--brand-primary)}}