.expert-section{background:var(--as-canvas)}
.expert-stage{margin-top:44px;display:grid;grid-template-columns:minmax(290px,.9fr) minmax(0,1.1fr);align-items:center;gap:60px;min-height:690px;background:var(--as-paper);border-radius:var(--as-radius-panel);padding:56px 72px;box-sizing:border-box}
.expert-choices{display:grid;gap:12px;align-content:center;position:relative;z-index:1}
.expert-choice{max-width:390px;min-width:0}
.expert-choice summary{list-style:none;display:flex;gap:12px;align-items:center;width:fit-content;max-width:100%;padding:15px 20px;border-radius:28px;background:var(--as-canvas);font-size:15px;font-weight:550;cursor:pointer;transition:background .25s}
.expert-choice summary::-webkit-details-marker{display:none}
.expert-symbol{width:18px;height:18px;border:1px solid currentColor;border-radius:50%;position:relative;flex-shrink:0}
.expert-symbol:before,.expert-symbol:after{content:'';position:absolute;background:currentColor;left:4px;right:4px;top:8px;height:1px}
.expert-symbol:after{transform:rotate(90deg);transition:transform .25s}
.expert-choice[open] .expert-symbol:after{transform:rotate(0)}
.expert-choice[open] summary{background:var(--expert-color)}
.expert-copy{padding:22px 24px 24px;margin-top:8px;border-radius:24px;background:var(--expert-color);color:var(--as-on-color);animation:expert-reveal .3s ease-out}
.expert-copy h3{font-size:24px;letter-spacing:-.035em;line-height:1.15;margin:0 0 14px}
.expert-copy p{font-size:15px;line-height:1.6;margin:0;color:var(--as-on-color-secondary)}
.expert-link{display:inline-block;margin-top:20px;font-size:14px;color:inherit;text-underline-offset:4px}
.expert-preview{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:0;isolation:isolate}
.expert-halo{position:absolute;width:390px;max-width:115%;aspect-ratio:1;border-radius:50%;background:var(--as-petrol-surface);opacity:.22;filter:blur(40px);z-index:-1;transition:background .35s}
.expert-phone{margin:0;width:242px;max-width:100%}
.expert-phone .as-device{position:relative;inset:auto;transform:none;width:100%;box-shadow:0 24px 55px -27px #0006,inset 0 0 0 1px #b4b7b8}
.expert-phone .as-device-screen{aspect-ratio:540/1160}
.expert-phone video{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:fill}
.expert-phone figcaption{text-align:center;font-size:13px;margin-top:22px;color:var(--as-secondary)}
.expert-play{display:flex;gap:12px;align-items:center;margin-top:16px;border:0;border-radius:28px;padding:12px 18px;background:var(--as-canvas);color:var(--as-ink);font:inherit;font-size:12px;cursor:pointer}
.expert-play[hidden]{display:none}
.expert-status{font-size:12px;color:var(--as-secondary);text-align:center;max-width:260px;margin:10px 0 0}
.expert-status:empty{display:none}
@keyframes expert-reveal{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:none}}
@media(max-width:1000px){.expert-stage{gap:32px;padding:40px;grid-template-columns:1fr 1fr}.expert-choice summary{font-size:14px;padding:14px 16px}}
@media(max-width:767px){.expert-stage{margin-top:32px;width:calc(100% - 32px);padding:28px 22px 32px;grid-template-columns:1fr;gap:34px;border-radius:var(--as-radius-panel-mobile);min-height:0}.expert-choice{max-width:none}.expert-choice summary{font-size:14px;min-height:46px;box-sizing:border-box}.expert-copy{padding:20px}.expert-copy h3{font-size:22px}.expert-copy p{font-size:14px}.expert-phone{width:218px}.expert-halo{width:310px;max-width:100%}.expert-choices{gap:10px}.expert-preview{padding-top:8px}}
@media(prefers-reduced-motion:reduce){.expert-copy{animation:none}.expert-choice summary,.expert-symbol:after,.expert-halo{transition:none}}

/* Expert cards share one monochrome treatment */
.expert-choice summary,.expert-choice[open] summary,.expert-copy{background:var(--as-canvas);color:var(--as-ink)}
.expert-copy p{color:var(--as-ink)}
.expert-choice summary:hover{box-shadow:inset 0 0 0 2px var(--as-secondary)}

/* Actions: end-aligned product link and panel-level icon control */
.expert-stage{position:relative}
.expert-link{display:table;width:fit-content;margin:22px 0 0 auto;padding:12px 18px;border-radius:28px;background:var(--as-ink);color:var(--as-paper);text-decoration:none;font-weight:550;line-height:1.4}
.expert-link:hover{background:var(--as-night)}
.expert-play{position:absolute;top:16px;right:16px;width:44px;height:44px;margin:0;padding:0;display:grid;place-items:center;border-radius:50%;font-size:19px;z-index:3;line-height:1}
.expert-play:hover{box-shadow:inset 0 0 0 1px var(--as-secondary)}
@media(max-width:767px){.expert-stage{padding-top:68px}.expert-play{top:12px;right:12px}}