:root { color-scheme: dark; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: #06152f; color: #fff; }
* { box-sizing: border-box; }
body { min-height: 100vh; min-height: 100svh; margin: 0; display: grid; place-items: center; padding: 48px 24px; background: radial-gradient(ellipse at 50% 0%, #0b3e77 0, transparent 62%), radial-gradient(ellipse at 100% 100%, #083747 0, transparent 48%), #06152f; }
.dtnas-site-mode__card { width: min(100%, 760px); text-align: center; }
.dtnas-site-mode__brand { display: inline-block; max-width: 100%; padding: 8px; border-radius: 8px; }
.dtnas-site-mode__brand img { display: block; width: min(420px, 76vw); max-width: 100%; height: auto; }
.dtnas-site-mode__rule { width: 56px; height: 3px; margin: 40px auto 32px; border-radius: 4px; background: #19c7e7; }
.dtnas-site-mode__status { display: inline-flex; align-items: center; gap: 10px; padding: 9px 15px; margin: 0 0 22px; border: 1px solid #29718d; border-radius: 99px; color: #a8e8f5; font-size: 13px; line-height: 1.4; letter-spacing: .04em; }
.dtnas-site-mode__status > span { width: 7px; height: 7px; flex: 0 0 7px; border-radius: 50%; background: #30d0e8; box-shadow: 0 0 14px #19c7e766; }
h1 { margin: 0 0 24px; font-size: clamp(40px, 8vw, 72px); line-height: 1.08; letter-spacing: -.045em; font-weight: 750; overflow-wrap: anywhere; }
.dtnas-site-mode__message { max-width: 560px; margin: 0 auto; color: #c4d5e8; font-size: clamp(17px, 2.5vw, 20px); line-height: 1.7; }
.dtnas-site-mode__thanks { margin: 24px 0 0; color: #9fb8d4; font-size: 15px; }
footer { margin-top: 64px; display: flex; flex-direction: column; gap: 9px; align-items: center; font-size: 13px; color: #9fb8d4; }
footer a { padding: 6px; color: #e8f4ff; text-decoration: none; font-size: 15px; font-weight: 600; }
footer a:hover { color: #6be4f5; text-decoration: underline; }
sup { font-size: .6em; margin-left: 1px; }
a:focus-visible { outline: 3px solid #4cdaee; outline-offset: 6px; border-radius: 5px; }
@media (max-width: 480px) { body { padding: 36px 20px; } .dtnas-site-mode__rule { margin: 28px auto; } h1 { font-size: clamp(32px, 10vw, 42px); } footer { margin-top: 44px; } }