:root { color-scheme: dark; font-family: system-ui, "Yu Gothic", "Meiryo", sans-serif; color: #eef2f7; background: #1b242b; }
* { box-sizing: border-box; } body { margin: 0; background: radial-gradient(ellipse at top, #344248, #151c23 75%); min-height:100vh; }
nav { display:flex; align-items:center; justify-content:space-between; padding:14px max(20px,calc((100% - 800px)/2)); background:#121b25; gap:24px; }
button, input, textarea { font:inherit; } button { cursor:pointer; color:white; border:1px solid #8292a3; border-radius:5px; padding:12px 20px; background:#354352; font-weight:650; }
button:focus-visible,input:focus-visible,textarea:focus-visible { outline:3px solid #ffd66c; outline-offset:3px; } button:disabled { opacity:.55; cursor:wait; }
main { --accent:#b72c40; max-width:800px; margin:28px auto; background:#10171f; border:1px solid var(--accent); border-radius:8px; overflow:hidden; }
main[data-type=request] { --accent:#006e74; } header { background:var(--accent); display:flex; align-items:center; justify-content:center; gap:28px; padding:14px; } h1 { margin:0; font-size:clamp(24px,4vw,34px); text-align:center; } header img { width:64px; height:64px; object-fit:contain; }
.content { padding:22px 30px; } .tabs { display:flex; width:75%; margin:0 auto 16px; } .tabs button { flex:1; border-radius:0; } button[aria-pressed=true],#send,.privacy { background:var(--accent); } .privacy { padding:16px; border-radius:5px; font-size:14px; } .required,b,.error { color:#ff8d99; } label { display:block; font-size:18px; font-weight:650; } .hint { margin:6px 0 10px; color:#c6d1db; font-size:14px; } input,textarea { width:100%; background:#151f29; color:#fff; border:1px solid #aab9c7; border-radius:4px; padding:12px; } textarea { resize:vertical; min-height:120px; } .error { font-size:14px; margin:6px 0 18px; min-height:1em; } .build { display:inline-block; padding:9px 14px; background:#344352; border-radius:4px; font-size:14px; overflow-wrap:anywhere; } .actions { display:flex; gap:20px; } .actions button { flex:1; min-height:52px; } #send { border-color:var(--accent); } #status { white-space:pre-line; overflow-wrap:anywhere; } .receipt-hint { text-align:right; font-size:13px; }
@media(max-width:600px) { main { margin:16px 10px; } .content { padding:18px; } header { gap:12px; } header img { width:44px; height:44px; } .tabs { width:100%; } .actions { flex-direction:column-reverse; gap:10px; } }