:root { color-scheme: light; font-family: Georgia, "Times New Roman", serif; }
* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; display: grid; place-items: center; background: #f8f4ee; color: #3b302d; }
main { width: min(90vw, 680px); padding: 4rem 2rem; text-align: center; }
.mark { width: 56px; height: 56px; margin: 0 auto 2rem; border: 2px solid #b98070; border-radius: 50%; display: grid; place-items: center; color: #995e50; font: 1.4rem Georgia, serif; }
h1 { margin: 0 0 1rem; font-size: clamp(2.5rem, 7vw, 4.5rem); font-weight: normal; letter-spacing: -.04em; }
p { margin: 0; font: 1rem/1.6 Arial, sans-serif; letter-spacing: .12em; text-transform: uppercase; color: #815f57; }
.rule { width: 72px; height: 1px; margin: 2rem auto; background: #b98070; }
.welcome { margin: 2.5rem auto 0; max-width: 560px; }
.welcome video { display: block; width: 100%; max-height: 420px; border-radius: 12px; background: #211d1b; }
.theme-toggle { position: fixed; top: 1rem; right: 1rem; padding: .55rem .8rem; border: 1px solid #a47b6f; border-radius: 9px; background: transparent; color: inherit; font: 700 .85rem Arial, sans-serif; cursor: pointer; }
.theme-toggle:hover { background: #eee3d9; }
.theme-toggle:focus-visible { outline: 3px solid #a65f36; outline-offset: 3px; }
html[data-theme="dark"] { color-scheme: dark; }
html[data-theme="dark"] body { background: #171b24; color: #f4eee8; }
html[data-theme="dark"] .mark { border-color: #d4a392; color: #f2beaa; }
html[data-theme="dark"] .rule { background: #d4a392; }
html[data-theme="dark"] p { color: #e4b5a2; }
html[data-theme="dark"] .theme-toggle { border-color: #d4a392; }
html[data-theme="dark"] .theme-toggle:hover { background: #343442; }