:root { font-family: system-ui, sans-serif; color: #173b35; background: #f6f1de; }
* { box-sizing: border-box; }
body { margin: 0; }
[hidden] { display: none !important; }
#shelf { max-width: 650px; margin: auto; padding: max(24px, env(safe-area-inset-top)) 24px max(24px, env(safe-area-inset-bottom)); }
h1 { font-size: clamp(2.5rem, 10vw, 4rem); margin: 12px 0; }
p { line-height: 1.6; }
.eyebrow { font-size: .9rem; }
button, summary { min-height: 48px; cursor: pointer; font: inherit; }
button { padding: 12px 18px; border: 2px solid #173b35; border-radius: 14px; color: inherit; background: white; }
button:disabled { cursor: wait; opacity: .6; }
button:focus-visible, summary:focus-visible { outline: 3px solid #b96815; outline-offset: 4px; }
.play { display: flex; align-items: center; gap: 18px; width: 100%; text-align: left; margin: 24px 0; }
.play img { width: 80px; height: 80px; flex-shrink: 0; }
.play strong { display: block; margin-top: 8px; }
details { margin-top: 28px; }
summary { padding: 12px 0; }
label { display: flex; align-items: center; min-height: 48px; gap: 10px; }
input { width: 24px; height: 24px; flex-shrink: 0; }
iframe { position: fixed; inset: 0; width: 100%; height: 100%; height: 100dvh; border: 0; background: #173b35; }
#exit-error { position: fixed; inset: 0; z-index: 2; overflow: auto; background: #f6f1de; padding: 32px; }