:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #080b10;
  color: #f4f7fb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 15%, rgba(72, 112, 255, 0.17), transparent 34rem),
    radial-gradient(circle at 82% 85%, rgba(58, 210, 159, 0.10), transparent 30rem),
    #080b10;
}

.shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(100%, 430px);
  padding: 34px;
  border: 1px solid #222a37;
  border-radius: 22px;
  background: rgba(15, 19, 27, 0.94);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
}

.mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(145deg, #7d9aff, #3ad29f);
  color: #07100d;
  font-weight: 800;
}

.eyebrow {
  margin: 24px 0 8px;
  color: #8290a6;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

h1 { margin: 0; font-size: 28px; line-height: 1.15; }
.intro { margin: 12px 0 26px; color: #aab4c4; line-height: 1.55; }

form { display: grid; gap: 10px; }
label { margin-top: 5px; color: #cbd3df; font-size: 13px; font-weight: 650; }

input {
  width: 100%;
  min-height: 46px;
  border: 1px solid #303a4b;
  border-radius: 11px;
  padding: 0 13px;
  background: #0b0f16;
  color: #f4f7fb;
  font: inherit;
  outline: none;
}

input:focus { border-color: #7794ff; box-shadow: 0 0 0 3px rgba(119, 148, 255, .13); }

button {
  min-height: 46px;
  margin-top: 8px;
  border: 0;
  border-radius: 11px;
  background: #f1f4fa;
  color: #0b0e14;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}

button:hover { background: #ffffff; }
button:disabled { cursor: wait; opacity: .65; }
.message { min-height: 20px; margin: 4px 0 0; color: #ff9b9b; font-size: 13px; }
.footnote { margin: 24px 0 0; color: #778397; font-size: 12px; line-height: 1.5; }

@media (max-width: 520px) {
  .shell { padding: 14px; }
  .card { padding: 26px 22px; border-radius: 18px; }
}