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28px);height:min(900px,100vh - 36px);margin:0 auto;position:relative;overflow:hidden;box-shadow:0 38px 140px #193d383d}.viewport-card:after{content:"";pointer-events:none;background:radial-gradient(circle,#0000 0% 42%,#2c433f2e 100%),linear-gradient(#ffffff09,#0000 54%,#fff4d514);position:absolute;inset:0}.viewport-card canvas{width:100%;height:100%}.story-card{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#2d433f75;border:1px solid #ffffff3d;border-radius:24px;width:min(285px,100% - 44px);padding:24px;animation:.7s both rise;position:absolute;bottom:108px;right:22px;box-shadow:0 22px 60px #18312d24}.story-card[data-mode=auto]{animation:.7s both rise,8.8s ease-in-out infinite breathe-card}.story-kicker{letter-spacing:.18em;text-transform:uppercase;color:#f8f2e694;margin:0 0 13px;font-size:11px}.story-card h2{margin:0 0 15px;font-size:23px;font-weight:600}.story-card p:last-child{white-space:pre-line;color:#f8f2e6d9;margin:0;font-size:16px;line-height:1.82}.progress-nav{flex-direction:column;justify-content:space-between;display:flex;position:absolute;top:105px;bottom:104px;left:22px}.progress-nav:before{content:"";background:#ffffff57;width:1px;position:absolute;top:12px;bottom:12px;left:8px}.progress-nav button{color:#f8f2e6b8;cursor:pointer;background:0 0;border:0;align-items:center;gap:10px;padding:0;display:flex;position:relative}.progress-nav span{background:#70a39e8a;border:1px solid #ffffffa8;border-radius:999px;width:17px;height:17px}.progress-nav small{opacity:0;max-width:110px;font-size:11px;transition:all .24s;transform:translate(-3px)}.progress-nav button.active span{background:#fffdf2;box-shadow:0 0 18px #fff6c7cc,0 0 36px #fff6c759}.progress-nav button.active small,.progress-nav button:hover small{opacity:1;transform:translate(0)}.hint{z-index:10;text-align:center;color:#f8f2e69e;font-size:12px;position:fixed;bottom:14px;left:0;right:0}@keyframes rise{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@keyframes breathe-card{0%,to{box-shadow:0 22px 60px #18312d24}48%{box-shadow:0 24px 64px #fff4d51f}}@media (width<=520px){.app-shell{min-height:100dvh;padding:0}.viewport-card{border:0;border-radius:0;width:100vw;height:100dvh}.viewport-card:after{background:radial-gradient(circle at 50% 43%,#0000 0% 48%,#2c433f29 100%),linear-gradient(#ffffff08,#0000 58%,#fff4d50f)}.topbar{top:max(16px, env(safe-area-inset-top));align-items:flex-start;gap:10px;left:16px;right:16px}.topbar>div:first-child{min-width:0;max-width:54vw}.eyebrow,.counter{letter-spacing:.15em;color:#f8f2e6ad;font-size:9px}h1{margin-top:6px;font-size:18px;line-height:1.15}.top-status{align-items:center;gap:7px}.mode-toggle{padding:6px 10px;font-size:10px}.sound-toggle{right:20px;top:calc(max(16px, env(safe-area-inset-top)) + 96px);background:#2d433f47;padding:8px 13px;font-size:10px}.progress-nav{left:18px;top:calc(max(16px, env(safe-area-inset-top)) + 160px);bottom:calc(112px + env(safe-area-inset-bottom));opacity:.72}.progress-nav span{background:#70a39e5c;width:18px;height:18px}.progress-nav:before{background:#ffffff47;left:9px}.progress-nav small{display:none}.story-card{left:auto;right:16px;bottom:calc(18px + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#2d433f61;border-radius:22px;width:min(310px,100vw - 78px);max-height:24vh;padding:16px 18px;overflow:hidden}.story-kicker{letter-spacing:.18em;margin-bottom:8px;font-size:9px}.story-card h2{margin-bottom:9px;font-size:21px}.story-card p:last-child{font-size:15px;line-height:1.52}.hint{display:none}}@media (height<=720px) and (width<=520px){.story-card{max-height:22vh;padding:14px 17px}.story-card h2{font-size:19px}.story-card p:last-child{font-size:14px;line-height:1.44}.progress-nav{top:calc(max(14px, env(safe-area-inset-top)) + 140px);bottom:calc(96px + env(safe-area-inset-bottom))}}