:root {
  color-scheme: dark;
  --bg: #101319;
  --panel: #171b23;
  --ink: #f7f4ed;
  --muted: #aab2c0;
  --line: rgba(255, 255, 255, 0.12);
  --green: #42d392;
  --red: #ff6b5f;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100svh;
  background:
    linear-gradient(180deg, rgba(66, 211, 146, 0.12), transparent 32%),
    var(--bg);
  color: var(--ink);
}

.gate {
  display: grid;
  min-height: 100svh;
  place-items: center;
  padding: 18px;
}

.panel {
  display: grid;
  width: min(420px, 100%);
  gap: 14px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(23, 27, 35, 0.94);
}

.mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 12px;
  background: var(--ink);
  color: var(--bg);
  font-weight: 1000;
}

.eyebrow {
  margin: 0;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
p {
  margin: 0;
}

h1 {
  font-size: 2.2rem;
  line-height: 1;
}

.lead,
.message {
  color: var(--muted);
  line-height: 1.45;
}

form {
  display: grid;
  gap: 10px;
}

label {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 900;
}

input,
button {
  min-height: 52px;
  border-radius: 16px;
  font: inherit;
}

input {
  border: 1px solid var(--line);
  padding: 0 14px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
}

button {
  border: 0;
  background: var(--green);
  color: #06120d;
  font-weight: 1000;
  cursor: pointer;
}

.message:not(:empty) {
  color: var(--red);
  font-weight: 800;
}