:root { font-family: system-ui, sans-serif; color: #e9eef7; background: #101620; color-scheme: dark; }
* { box-sizing: border-box; }
body { margin: 0; }
main { width: min(100% - 32px, 520px); margin: 8vh auto; }
header { margin-bottom: 28px; }
h1 { font-size: 2.4rem; margin: 8px 0; letter-spacing: -.04em; }
h2 { margin: 0 0 22px; font-size: 1.2rem; }
h3 { font-size: .9rem; color: #9aacc0; }
p { color: #a9b8ca; line-height: 1.5; }
.eyebrow { color: #71dbc3; font-size: .7rem; font-weight: 700; letter-spacing: .13em; margin: 0; }
.card { background: #192331; border: 1px solid #2b3b4e; border-radius: 16px; padding: 26px; }
label { display: block; font-size: .85rem; margin: 16px 0 7px; }
input, select, button { font: inherit; }
input, select { width: 100%; padding: 12px; border-radius: 8px; border: 1px solid #43566a; background: #111924; color: white; }
button { cursor: pointer; border: 0; border-radius: 9px; background: #72dbc3; color: #0b2824; font-weight: 700; padding: 13px 18px; }
form button { margin-top: 22px; width: 100%; }
button:disabled { opacity: .45; cursor: not-allowed; }
.channel-heading { display: flex; align-items: start; justify-content: space-between; }
.channel-heading h2 { margin: 5px 0 0; }
.badge { background: #244b45; color: #96ebd7; border-radius: 100px; padding: 6px 10px; font-size: .75rem; }
.speaker { text-align: center; margin: 30px 0 16px; }
.ptt { display: block; width: 190px; height: 190px; border-radius: 50%; margin: 0 auto; touch-action: none; user-select: none; box-shadow: 0 0 0 10px #244b45; }
.ptt span { font-size: .8rem; font-weight: 400; }
.ptt.active { background: #fff09b; box-shadow: 0 0 0 10px #625a31; }
.hint { font-size: .8rem; text-align: center; margin: 24px 0; }
ul { padding-left: 20px; color: #c9d6e4; }
.secondary { background: transparent; border: 1px solid #566a7d; color: #d8e4ef; margin-top: 10px; }
.status { font-size: .85rem; min-height: 2em; }
[hidden] { display: none !important; }