:root {
  color-scheme: dark;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  background: #0d1018;
  color: #f6f4ee;
}

* { box-sizing: border-box; }

body {
  min-height: 100svh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 80% 15%, rgba(111, 132, 201, .22), transparent 35%),
    radial-gradient(circle at 12% 80%, rgba(223, 169, 89, .12), transparent 32%),
    #0d1018;
}

.login-card {
  width: min(100%, 420px);
  padding: clamp(28px, 7vw, 48px);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 26px;
  background: rgba(25, 29, 41, .92);
  box-shadow: 0 28px 90px rgba(0, 0, 0, .42);
}

.eyebrow {
  color: #d4bb84;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .14em;
}

h1 { margin: 28px 0 8px; font-size: 32px; letter-spacing: -.04em; }
.lead { margin: 0 0 28px; color: #aeb4c4; font-size: 14px; }

form { display: grid; gap: 11px; }
label { color: #d9dce5; font-size: 12px; font-weight: 700; }

input {
  width: 100%;
  min-height: 52px;
  padding: 0 15px;
  border: 1px solid #464d60;
  border-radius: 12px;
  background: #10131c;
  color: #fff;
  font: inherit;
  outline: none;
}

input:focus { border-color: #cbb276; box-shadow: 0 0 0 3px rgba(203, 178, 118, .17); }

button {
  min-height: 52px;
  margin-top: 8px;
  border: 0;
  border-radius: 12px;
  background: #e1c987;
  color: #1b1b1b;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

button:disabled { opacity: .6; cursor: wait; }
.message { min-height: 20px; margin: 16px 0 0; color: #aeb4c4; font-size: 12px; }
.message[data-state="error"] { color: #ffaaa3; }