:root { color-scheme: dark; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: #0a0a0a; color: #fafafa; }
* { box-sizing: border-box; }
body { margin: 0; }
.launch-screen { min-height: 100svh; display: grid; place-items: center; padding: 24px; }
.launch-card { width: 100%; max-width: 460px; padding: 32px; border: 1px solid #ffffff1f; border-radius: 10px; background: #171717; box-shadow: 0 24px 64px #0009; }
.eyebrow { margin: 0 0 10px; color: #60a5fa; font-size: 12px; font-weight: 600; }
h1 { margin: 0 0 20px; font-size: 26px; font-weight: 650; letter-spacing: -.5px; }
p { margin: 0 0 16px; color: #d4d4d4; font-size: 14px; line-height: 1.65; }
.data-note { margin-bottom: 24px; color: #a3a3a3; font-size: 13px; }
button { display: block; width: 100%; min-height: 46px; padding: 12px 20px; border: 1px solid #2563eb; border-radius: 7px; background: #2563eb; color: #fff; font: inherit; font-size: 14px; font-weight: 650; cursor: pointer; }
button:hover:enabled { background: #1d4ed8; }
button:focus-visible { outline: 2px solid #93c5fd; outline-offset: 4px; }
button:disabled { cursor: wait; opacity: .75; }
.download-size { margin: 10px 0 0; color: #a3a3a3; font-size: 12px; text-align: center; }
.download { margin-top: 24px; }
.download-heading { display: flex; justify-content: space-between; gap: 16px; color: #e5e5e5; font-size: 13px; }
progress { display: block; width: 100%; height: 5px; margin: 12px 0; overflow: hidden; appearance: none; border: 0; border-radius: 5px; background: #303030; accent-color: #3b82f6; }
progress::-webkit-progress-bar { background: #303030; border-radius: 5px; }
progress::-webkit-progress-value { background: #3b82f6; border-radius: 5px; }
progress::-moz-progress-bar { background: #3b82f6; border-radius: 5px; }
progress:indeterminate { background: linear-gradient(90deg, #303030, #3b82f6, #303030); background-size: 200% 100%; animation: preparing 1.5s linear infinite; }
.download-detail { margin: 0; color: #a3a3a3; font-size: 12px; }
.download[data-error] [data-starting] { color: #fca5a5; }
noscript { display: block; margin-top: 18px; color: #fca5a5; font-size: 13px; }
@keyframes preparing { to { background-position: -200% 0; } }
@media (max-width: 480px) { .launch-screen { padding: 16px; } .launch-card { padding: 24px; } }
@media (prefers-reduced-motion: reduce) { progress:indeterminate { animation: none; } }