:root{--hist-bg:#090b12;--hist-panel:rgba(17,19,29,.82);--hist-panel-soft:rgba(255,255,255,.055);--hist-line:rgba(255,255,255,.10);--hist-text:#f7f4ed;--hist-muted:rgba(247,244,237,.68);--hist-blue:#6d94ee;--hist-cyan:#7ee7ff;--hist-purple:#8c7cff;--hist-gold:#f2b84b;--hist-red:#e34848;--hist-green:#7ff0b2}.cah-history-page{width:100%;min-height:100vh;color:var(--hist-text)}.cah-history-page.is-fullscreen{padding:0}.cah-history-hero{max-width:1180px;margin:34px auto 0;padding:42px 28px;position:relative;overflow:hidden}.cah-history-hero:after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(circle at 18% 12%,rgba(126,231,255,.14),transparent 30%),radial-gradient(circle at 88% 10%,rgba(140,124,255,.14),transparent 32%),radial-gradient(circle at 50% 100%,rgba(242,184,75,.08),transparent 42%)}.cah-history-hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(270px,.85fr);gap:24px;align-items:end}.cah-history-kicker{display:inline-flex;align-items:center;min-height:30px;padding:0 13px;margin-bottom:18px;border-radius:999px;background:rgba(105,151,240,.14);border:1px solid rgba(105,151,240,.38);color:rgba(160,188,245,.96);font-size:10.5px;line-height:1;font-weight:950;text-transform:uppercase;letter-spacing:1px}.cah-history-hero h1{margin:0 0 16px;max-width:860px;font-size:clamp(42px,6vw,76px);line-height:.96;letter-spacing:-2.2px;font-weight:950}.cah-history-hero p{margin:0;max-width:760px;color:var(--hist-muted);font-size:16px;line-height:1.58;font-weight:620}.cah-history-hero-card{padding:20px}.cah-history-hero-card strong{display:block;margin:0 0 8px;font-size:17px;line-height:1.22;font-weight:950}.cah-history-hero-card span{display:block;color:var(--hist-muted);font-size:13px;line-height:1.5;font-weight:650}.cah-history-shell{max-width:1180px;margin:0 auto;padding:24px 22px 56px}.cah-history-page.is-fullscreen 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20px)}.cah-history-controls-topline,.cah-history-mode-actions{flex-direction:column;align-items:stretch}.cah-history-study-head-actions{justify-items:stretch}}