/* Intro owns its surface and coordinates; ordinary lecture layouts stay intact. */
.kind-intro{--intro-accent:#83efd6;--intro-dim:#819797;--intro-stroke:#344f50;--intro-panel:#122123;--intro-gap:90px;background:#080f12;color:#f2f8f7;isolation:isolate}
.kind-intro .eyebrow{position:relative;z-index:2;font-size:22px;letter-spacing:.14em;color:#bdcccb;border-color:var(--intro-stroke)}
.kind-intro .eyebrow span{font-size:18px;letter-spacing:.22em}.intro-aura{position:absolute;inset:0;z-index:-1;background:radial-gradient(ellipse at 50% 68%,#285b5448,transparent 56%),linear-gradient(90deg,transparent 49.94%,#83efd610 50%,transparent 50.06%)}
.intro-title{text-align:center;position:relative;margin-top:26px}.intro-kicker{font-size:25px;letter-spacing:.08em;color:#b4c6c4;margin-bottom:18px}.intro-title h2{font-weight:400;letter-spacing:-.045em;line-height:1.12}.intro-thought{display:block;font-size:62px;color:#d2e0df;margin-bottom:8px}.intro-impact{display:block;font-size:124px;color:var(--intro-accent)}
.intro-journey{position:relative;display:grid;grid-template-columns:1fr 620px 1fr;gap:var(--intro-gap);align-items:center;margin-top:44px;height:490px}.intro-wire{position:absolute;left:140px;right:140px;top:50%;height:1px;background:linear-gradient(90deg,transparent,var(--intro-accent),transparent);z-index:-1;transform-origin:left center}.intro-step{color:var(--intro-accent);font-size:21px;letter-spacing:.16em;margin-bottom:18px}.intro-idea,.intro-world{position:relative;padding:18px 26px;align-self:stretch;display:flex;flex-direction:column;justify-content:center;background:linear-gradient(90deg,#080f12e8,#080f1280)}.intro-mark{font-size:90px;line-height:.55;color:var(--intro-accent);margin:18px 0 0}.intro-request{font-size:45px;line-height:1.35;letter-spacing:-.035em}.intro-detail{font-size:24px;line-height:1.65;color:#a2b9b6;margin-top:24px}.intro-app{background:var(--intro-panel);border:1px solid #608e85;border-radius:22px;box-shadow:0 30px 80px #0007,0 0 70px #83efd60a;overflow:hidden;transform-origin:center}.intro-window{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--intro-stroke);padding:16px 26px;font-size:18px;color:#d4e2df}.intro-dots{font-size:12px;letter-spacing:5px;color:#5c8980}.intro-live{font-size:13px;border:1px solid #608e85;border-radius:20px;padding:4px 10px;letter-spacing:.12em}.intro-app-body{padding:24px 34px 28px}.intro-app-body .intro-step{font-size:16px;margin-bottom:12px}.intro-app h3{font-size:42px;font-weight:400;line-height:1.25;letter-spacing:-.035em;margin:0 0 22px}.intro-module{display:flex;align-items:center;gap:20px;border-top:1px solid var(--intro-stroke);padding:16px 0;font-size:23px}.intro-module>span{font-size:17px;color:var(--intro-dim)}.intro-module>span:last-child{margin-left:auto}.intro-button{display:flex;align-items:center;justify-content:space-between;background:var(--intro-accent);color:#0b2421;border-radius:9px;padding:16px 22px;font-size:22px;text-decoration:none;margin-top:10px;transform-origin:center}
.intro-world{background:linear-gradient(90deg,#080f1280,#080f12e8)}.intro-world-title{font-size:39px;line-height:1.4;letter-spacing:-.03em;margin-top:16px}.intro-address{font-size:19px;color:var(--intro-accent);padding:14px 0;border-top:1px solid var(--intro-stroke);border-bottom:1px solid var(--intro-stroke);margin-top:22px;white-space:nowrap}.intro-world .intro-detail{font-size:22px;margin-top:16px}.intro-orbit{width:94px;height:94px;border:1px solid #679e92;border-radius:50%;position:relative;overflow:hidden}.intro-orbit:before,.intro-orbit:after,.intro-orbit span,.intro-orbit i{content:'';position:absolute;border:1px solid #679e92;border-radius:50%}.intro-orbit:before{inset:0 22px}.intro-orbit:after{inset:22px -8px}.intro-orbit span{left:0;right:0;top:46px;border-width:1px 0 0}.intro-orbit i{inset:0 44px;border-width:0 1px 0 0}.intro-final{position:absolute;bottom:65px;left:100px;right:100px;text-align:center;font-size:28px;color:#9eb6b2;letter-spacing:.025em}.intro-final strong{font-weight:400;color:#f2f8f7}.kind-intro .slide-number{color:#839e99}
.reading .intro-title{margin-top:30px}.reading .intro-kicker{font-size:18px}.reading .intro-thought{font-size:30px}.reading .intro-impact{font-size:46px}.reading .intro-journey{display:flex;flex-direction:column;height:auto;gap:25px}.reading .intro-wire{display:none}.reading .intro-idea,.reading .intro-world,.reading .intro-app{width:100%;max-width:620px;align-self:center}.reading .intro-request{font-size:32px}.reading .intro-final{position:static;margin-top:35px;font-size:22px}.reading .intro-world-title{font-size:30px}.reading .intro-title h2{line-height:1.3}.reading .intro-address{font-size:16px}
@media print{.kind-intro [data-intro]{opacity:1!important;transform:none!important;visibility:visible!important}}