.about-hero{grid-template-columns:minmax(0,1.05fr) minmax(320px,.7fr);align-items:center;gap:clamp(54px,10vw,180px);min-height:min(770px,100vh - 76px);padding-top:clamp(68px,10vh,128px);padding-bottom:clamp(92px,13vh,170px);display:grid}.about-hero h1{max-width:780px}.about-intro{max-width:500px}.about-intro p{color:var(--portal-muted);letter-spacing:-.03em;margin:0;font-size:clamp(19px,2vw,27px);line-height:1.35}.about-intro p+p{letter-spacing:0;margin-top:22px;font-size:15px;line-height:1.7}.about-intro .portal-primary{margin-top:36px}.about-principles{grid-template-columns:repeat(3,1fr);padding-top:clamp(94px,12vw,164px);padding-bottom:clamp(94px,12vw,164px);display:grid}.about-principles article{border-left:1px solid var(--portal-line);flex-direction:column;align-items:flex-start;min-height:390px;padding:0 clamp(25px,3vw,58px);display:flex}.about-principles article:first-child{border-left:0;padding-left:0}.about-principles article:last-child{padding-right:0}.about-principles h2{margin:38px 0 auto;font-size:clamp(43px,4.4vw,72px)}.about-principles p:not(.portal-eyebrow){color:var(--portal-muted);margin:34px 0 0;font-size:14px;line-height:1.7}.about-principles a{text-underline-offset:5px;margin-top:24px;font-size:13px;font-weight:700}.about-principle{background:var(--portal-surface);padding:clamp(78px,10vw,148px) 0}.about-principle-inner{grid-template-columns:minmax(240px,.8fr) minmax(0,1.2fr);align-items:center;gap:clamp(54px,10vw,180px);display:grid}.about-principle h2,.about-tools h2{margin:0;font-size:clamp(52px,6vw,92px)}.about-principle p:not(.portal-eyebrow){max-width:565px;color:var(--portal-muted);margin:30px 0 0;font-size:16px;line-height:1.7}.about-diagram{width:min(100%,500px)}.about-diagram svg{width:100%}.about-ratio-a{fill:var(--portal-a)}.about-ratio-b{fill:var(--portal-b)}.about-ratio-c{fill:var(--portal-c)}.about-ratio-guides{fill:none;stroke:var(--portal-ink);stroke-dasharray:6 6;stroke-width:1.2px;opacity:.58}.about-ratio-labels{fill:var(--portal-ink);text-anchor:middle;font-family:Inter,ui-sans-serif,sans-serif;font-size:19px;font-weight:720}.about-ratio-labels text:last-child{fill:var(--portal-muted);letter-spacing:.18em;font-size:11px;font-weight:760}.about-tools{padding-top:clamp(100px,13vw,184px);padding-bottom:clamp(110px,14vw,190px)}.about-tools h2{margin-top:28px}.about-tool-links{background:var(--portal-line);grid-template-columns:repeat(3,1fr);gap:1px;margin-top:clamp(60px,8vw,104px);display:grid}.about-tool-links a{min-height:250px;color:inherit;background:var(--portal-page);flex-direction:column;padding:25px;text-decoration:none;transition:background-color .18s,transform .18s;display:flex}.about-tool-links a:hover{background:var(--portal-raised);transform:translateY(-3px)}.about-tool-links small{color:var(--portal-muted);letter-spacing:.14em;font-size:10px;font-weight:760}.about-tool-links strong{letter-spacing:-.045em;margin-top:44px;font-size:clamp(23px,2.3vw,33px);font-weight:520;line-height:1}.about-tool-links span{color:var(--portal-muted);margin-top:auto;font-size:13px;line-height:1.55}@media (width<=980px){.about-hero,.about-principle-inner{grid-template-columns:1fr;min-height:auto}.about-hero{gap:42px}.about-principles{grid-template-columns:1fr;gap:56px}.about-principles article{border:0;min-height:auto;padding:0}.about-principles h2{margin:24px 0}.about-principles p:not(.portal-eyebrow){margin:0}.about-diagram{max-width:360px}}@media (width<=700px){.about-hero{padding-top:54px;padding-bottom:82px}.about-principles{padding-top:78px;padding-bottom:78px}.about-principle-inner{gap:48px}.about-tool-links{grid-template-columns:1fr}.about-tool-links a{min-height:205px}}