:root {
  color-scheme: dark;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #020617;
  color: #e2e8f0;
}

* { box-sizing: border-box; }
body { margin: 0; background: #020617; }
main { width: min(760px, calc(100% - 32px)); margin: 0 auto; padding: 36px 0 56px; }
header { padding-bottom: 18px; border-bottom: 1px solid #1e293b; }
h1 { margin: 0; color: #f8fafc; font-size: 32px; letter-spacing: 0; }
h2 { margin: 30px 0 8px; color: #67e8f9; font-size: 19px; letter-spacing: 0; }
p, li, label, input, textarea, button { font-size: 16px; line-height: 1.55; letter-spacing: 0; }
p, li { color: #cbd5e1; }
a { color: #67e8f9; }
nav { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 18px; }
.meta { color: #94a3b8; font-size: 14px; }
.panel { margin-top: 20px; padding: 18px; border: 1px solid #263447; border-radius: 8px; background: #07111d; }
.language { margin-top: 38px; padding-top: 28px; border-top: 1px solid #1e293b; }
form { display: grid; gap: 12px; }
label { display: grid; gap: 6px; color: #f8fafc; }
input, textarea { width: 100%; border: 1px solid #334155; border-radius: 6px; padding: 11px; background: #0f172a; color: #f8fafc; }
textarea { min-height: 180px; resize: vertical; }
button { min-height: 46px; border: 0; border-radius: 8px; padding: 10px 18px; background: #22d3ee; color: #020617; font-weight: 700; cursor: pointer; }
button:disabled { opacity: .55; cursor: default; }
.hidden { position: absolute; left: -10000px; }
.status { min-height: 24px; color: #67e8f9; }
footer { margin-top: 44px; padding-top: 18px; border-top: 1px solid #1e293b; color: #64748b; }