/* ---- INTRO CURTAIN ------------------------------------------------- */
.intro{position:fixed;inset:0;z-index:260;overflow:hidden;color:var(--ink);height:100dvh;touch-action:pan-y}
.intro__half{position:absolute;top:0;bottom:0;width:50.5%;background:var(--paper);background-image:radial-gradient(ellipse at 50% 120%,var(--paper-2) 0%,transparent 60%);transition:transform 1.3s cubic-bezier(.77,0,.18,1)}
.intro__half--l{left:0;box-shadow:inset -40px 0 80px -60px rgba(0,0,0,.25)}
.intro__half--r{right:0;box-shadow:inset 40px 0 80px -60px rgba(0,0,0,.25)}
.intro__seam{position:absolute;top:0;bottom:0;left:50%;width:1px;background:var(--rule);opacity:.6;transition:opacity .4s}
.intro--opening .intro__half--l{transform:translateX(-102%)}
.intro--opening .intro__half--r{transform:translateX(102%)}
.intro--opening .intro__seam{opacity:0}
.intro__stage{position:relative;z-index:2;height:100%;display:grid;grid-template-rows:auto 1fr auto;padding:clamp(20px,3.5vh,40px) clamp(20px,6vw,96px);max-width:1100px;margin:0 auto;transition:opacity .45s ease,transform .45s ease}
.intro--opening .intro__stage{opacity:0;transform:translateY(-10px);pointer-events:none}
.intro__top{display:flex;align-items:center;justify-content:space-between;gap:16px}
.intro__brand{display:flex;align-items:center;gap:10px;font-family:var(--font-serif);font-size:20px}
.intro__brand svg{width:24px;height:24px;color:var(--accent)}
.intro__body{display:flex;align-items:center;min-height:0}
.intro__slide{max-width:720px;animation:introIn .6s cubic-bezier(.2,.9,.2,1) both}
@keyframes introIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.intro__step{font-family:var(--font-sans);font-size:11px;letter-spacing:.14em;color:var(--ink-faint);font-variant-numeric:tabular-nums;margin-left:18px}
.intro__kicker{font-family:var(--font-sans);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:18px}
.intro__title{font-family:var(--font-serif);font-weight:500;font-size:clamp(34px,5.2vw,64px);line-height:1.04;letter-spacing:-.01em;margin:0 0 22px;text-wrap:pretty}
.intro__lede{font-family:var(--font-body);font-size:clamp(17px,1.5vw,21px);line-height:1.5;color:var(--ink);max-width:620px;margin:0;text-wrap:pretty}
.intro__note{font-family:var(--font-body);font-style:italic;font-size:16px;color:var(--ink-soft);margin:22px 0 0}
.intro__count{display:flex;align-items:baseline;gap:14px;margin-top:30px;padding-top:22px;border-top:1px solid var(--rule)}
.intro__count-n{font-family:var(--font-serif);font-size:clamp(48px,6vw,80px);line-height:1;color:var(--accent);font-variant-numeric:oldstyle-nums}
.intro__count-l{font-family:var(--font-body);font-style:italic;font-size:18px;color:var(--ink-soft);max-width:260px;line-height:1.3}
.intro__switch-row{display:flex;align-items:center;gap:18px;margin-top:34px;flex-wrap:wrap}
.intro__switch-label{font-family:var(--font-serif);font-size:22px;color:var(--ink-faint);transition:color .25s}
.intro__switch-label.is-on{color:var(--ink)}
.intro__switch{position:relative;width:74px;height:38px;border-radius:999px;background:var(--paper-2);border:1px solid var(--rule);cursor:pointer;flex:0 0 auto;transition:background .3s}
.intro__switch-knob{position:absolute;top:3px;left:3px;width:30px;height:30px;border-radius:50%;background:var(--accent);box-shadow:0 2px 6px rgba(0,0,0,.25);transition:transform .35s cubic-bezier(.2,.9,.2,1)}
.intro__switch.is-right .intro__switch-knob{transform:translateX(36px)}
.intro__actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.intro__nav{display:flex;align-items:center;justify-content:space-between;gap:16px}.intro .btn{white-space:nowrap}.intro__dots-wrap{display:flex;align-items:center}
.intro__nav-right{display:flex;gap:10px;align-items:center}
.intro__dots{display:flex;gap:10px}
.intro__dot{width:8px;height:8px;border-radius:50%;background:var(--paper-3);border:0;padding:0;cursor:pointer;transition:background .25s,transform .25s}
.intro__dot.is-active{background:var(--accent);transform:scale(1.25)}
@media (max-width:640px){.intro__step{display:none}.intro__switch-label{font-size:18px}.intro__nav .btn--ghost{display:none}.intro__stage{padding:max(16px,env(safe-area-inset-top)) 20px max(16px,env(safe-area-inset-bottom));row-gap:0;height:100dvh}.intro__body{overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;align-items:flex-start;padding:12px 0 16px}.intro__nav{position:relative;z-index:3;background:var(--paper);border-top:1px solid var(--rule);padding-top:12px;margin:0 -20px;padding-left:20px;padding-right:20px}.intro__nav .btn{min-height:44px}.intro__slide{width:100%;animation:none}.intro__title{font-size:clamp(26px,8.5vw,34px);margin-bottom:14px}.intro__lede{font-size:16px;line-height:1.45}.intro__kicker{margin-bottom:12px}.intro__note{font-size:14px;margin-top:14px}.intro__count{margin-top:18px;padding-top:14px;gap:10px}.intro__count-n{font-size:44px}.intro__count-l{font-size:15px}.intro__switch-row{margin-top:20px;gap:12px}.intro__actions{margin-top:20px}.intro .btn{white-space:normal}.intro__brand{font-size:17px}}
.intro__lede--pre{white-space:pre-line}