.concept-section .heading-split{align-items:start}.concept-section .heading-split p{max-width:36rem}.concept-section p{line-height:1.75}.concept-status-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(1.5rem,4vw,4rem);margin-top:3rem}.concept-status-grid article{border-top:1px solid color-mix(in srgb,var(--accent) 50%,transparent);padding:2rem 0}.concept-status-grid h3{font-size:clamp(1.5rem,2.5vw,2.5rem);margin:1rem 0}.concept-status-grid a{display:inline-block;margin-top:1rem;color:inherit;text-underline-offset:6px}.concept-status-grid .button{margin-top:1rem}.concept-status{font-size:.875rem;line-height:1.6;display:block;margin:1rem 0 1.5rem;padding-left:1rem;border-left:2px solid var(--accent);color:#b8c6bf}.ost-concept-figure{margin:3rem 0;border-radius:1rem;background:#fff;color:#38443e;padding:clamp(1rem,3vw,3rem);text-align:center}.ost-concept-figure img{display:block;width:min(100%,940px);height:auto;margin:auto}.ost-concept-figure figcaption{font-size:.875rem;margin-top:1.5rem;line-height:1.6}.correlation-demo{margin-top:3rem;padding:clamp(1rem,3vw,3rem);border:1px solid #3c4036;border-radius:1rem;background:radial-gradient(ellipse at 50% 0,rgba(234,179,8,.09),transparent 65%),#101913}.concept-demo-label{display:flex;justify-content:space-between;gap:1rem;color:#b4bdb6;font-size:.875rem}.correlation-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:2.5rem 0}.correlation-steps button{background:none;color:#b3bcb6;border:0;text-align:left;position:relative;padding:1.2rem .8rem;cursor:pointer;min-width:0}.correlation-steps button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.correlation-steps small{display:block;min-height:3rem;font-size:.875rem}.correlation-steps i{display:block;width:14px;height:14px;border:1px solid #657367;background:#17251b;border-radius:50%;position:relative;margin:1rem 0 1.5rem;z-index:1}.correlation-steps button:after{content:'';position:absolute;top:5.65rem;height:1px;background:#4c584b;left:1rem;right:0}.correlation-steps button:last-child:after{display:none}.correlation-steps strong{font-size:clamp(1rem,1.6vw,1.5rem);overflow-wrap:anywhere}.correlation-steps [aria-pressed=true]{color:#fff}.correlation-steps [aria-pressed=true] i{background:var(--accent);border-color:var(--accent);box-shadow:0 0 25px #eab30888;animation:conceptPulse 2.5s ease-in-out infinite}.correlation-explanation{display:grid;grid-template-columns:1fr 3fr;gap:1.5rem;align-items:start;padding:1.5rem;background:#1c281e;border-radius:.5rem;min-height:8rem}.correlation-explanation>span{color:var(--accent);font-weight:700}.correlation-explanation p{margin:0}.concept-caption{font-size:.875rem;color:#aab6ae;margin:1.5rem 0 0}.concept-section .feature-grid{margin-top:3rem}@keyframes conceptPulse{50%{box-shadow:0 0 0 8px #eab30816,0 0 30px #eab30877}}.motion-paused .correlation-steps i{animation:none}@media(prefers-reduced-motion:reduce){.correlation-steps i{animation:none!important}}@media(max-width:700px){.concept-status-grid{grid-template-columns:1fr;gap:.5rem}.concept-demo-label{flex-direction:column}.correlation-steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem}.correlation-steps button:after{display:none}.correlation-steps button{border:1px solid #39473b;border-radius:.5rem}.correlation-steps small{min-height:2.7rem}.correlation-steps i{margin:.6rem 0 1rem}.correlation-explanation{grid-template-columns:1fr;gap:.5rem;min-height:12rem}.ost-concept-figure{margin:2rem 0}.concept-section .heading-split{gap:1.5rem}}