:root { color-scheme: dark; font-family: system-ui, sans-serif; background: #0c1220; color: #ecf0f8; }
* { box-sizing: border-box; }
body { margin: 0; }
.container { max-width: 960px; margin: auto; padding: 32px 24px 80px; }
header { padding: 20px 0 24px; border-bottom: 1px solid #334057; }
h1 { font-size: clamp(2rem, 6vw, 3.5rem); margin: 8px 0 16px; letter-spacing: -.04em; }
h2 { margin-top: 0; }
.eyebrow { color: #73e6c1; font-size: .75rem; letter-spacing: .14em; font-weight: 700; }
.muted, header > p:last-child { color: #b3bed2; }
section, .track-card { margin-top: 24px; padding: 24px; background: #172134; border: 1px solid #334057; border-radius: 16px; }
form { display: grid; gap: 14px; margin-top: 20px; }
label { display: grid; gap: 7px; font-size: .9rem; }
input, textarea, button { font: inherit; border-radius: 8px; padding: 12px; min-width: 0; }
input, textarea { width: 100%; background: #0c1220; color: #ecf0f8; border: 1px solid #53617a; }
button { cursor: pointer; background: #73e6c1; color: #0c1220; border: 1px solid transparent; font-weight: 650; }
button.secondary { color: #dce5f5; background: #233049; border-color: #53617a; }
button:hover { filter: brightness(1.1); }
:focus-visible { outline: 3px solid #9bafff; outline-offset: 3px; }
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.toolbar h2 { margin: 0; }
details { margin: 24px 0; }
summary { cursor: pointer; color: #73e6c1; }
audio { display: block; width: 100%; margin: 20px 0; }
.controls { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.controls label, .controls input[readonly] { flex-basis: 100%; }
.comment { border-bottom: 1px solid #334057; padding: 14px 0; overflow-wrap: anywhere; }
.comment strong { margin-left: 12px; }
.comment p { white-space: pre-wrap; }
#message { color: #73e6c1; overflow-wrap: anywhere; }
#message.error { color: #ffb5b5; }
[hidden] { display: none !important; }
@media (max-width: 600px) { .container { padding: 16px 14px 40px; } section, .track-card { padding: 18px; } .controls button { width: 100%; } }