@import url("https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800&display=swap");

:root { color-scheme: light dark; font-family: Nunito, system-ui, sans-serif; --bg:#f5f8fc; --card:#fff; --text:#17324d; --muted:#577086; --border:#d7e3ee; --blue:#008cff; --green:#159447; }
* { box-sizing: border-box; }
body { margin:0; background:var(--bg); color:var(--text); }
.shell { width:min(760px, calc(100% - 28px)); margin:auto; padding:24px 0 48px; }
.topbar { display:flex; justify-content:space-between; align-items:center; gap:20px; margin-bottom:24px; }
.logo { width:180px; max-width:45vw; }
.back { color:var(--blue); font-weight:800; text-decoration:none; }
.card { background:var(--card); border:1px solid var(--border); border-radius:24px; padding:clamp(22px,5vw,42px); box-shadow:0 12px 34px rgba(28,68,102,.09); }
h1 { margin:0 0 8px; font-size:clamp(2rem,7vw,3rem); }
.intro { color:var(--muted); margin:0 0 26px; font-size:1.05rem; }
form { display:grid; gap:18px; }
label { display:grid; gap:7px; font-weight:800; }
input, textarea { width:100%; border:2px solid var(--border); border-radius:12px; padding:12px 14px; font:inherit; color:var(--text); background:var(--card); }
input:focus, textarea:focus { outline:3px solid color-mix(in srgb, var(--blue) 25%, transparent); border-color:var(--blue); }
textarea { min-height:160px; resize:vertical; }
.trap { position:absolute; left:-9999px; width:1px; height:1px; overflow:hidden; }
button { border:0; border-radius:12px; padding:13px 22px; background:var(--blue); color:#fff; font:800 1rem Nunito,sans-serif; cursor:pointer; }
button:disabled { opacity:.6; cursor:wait; }
.status { min-height:24px; margin:0; font-weight:700; }
.status.success { color:var(--green); }
.status.error { color:#b42318; }
footer { text-align:center; color:var(--muted); margin-top:22px; font-size:.85rem; }
@media (prefers-color-scheme: dark) { :root { --bg:#0f1d2b; --card:#17293a; --text:#f5f9fc; --muted:#b8c9d7; --border:#365168; } }