:root {
  color-scheme: light;
  --ink: #1c1c1c;
  --muted: #6f6f6f;
  --line: #dedede;
  --primary: #4250af;
  --error: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  color: var(--ink);
  font: 16px/1.4 system-ui, "Segoe UI", sans-serif;
}

.backdrop {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 20% 20%, #f15bb5 0, transparent 32%),
    radial-gradient(circle at 80% 15%, #fee440 0, transparent 28%),
    radial-gradient(circle at 70% 80%, #00bbf9 0, transparent 34%),
    radial-gradient(circle at 25% 85%, #9b5de5 0, transparent 30%),
    #1a1a1a;
  filter: blur(2px) saturate(1.05);
  transform: scale(1.05);
}

.card {
  position: relative;
  width: min(100% - 2rem, 26rem);
  padding: 2rem 1.75rem 1.75rem;
  background: #fff;
  border-radius: 28px;
  box-shadow: 0 20px 50px rgb(0 0 0 / 28%);
  text-align: center;
}

.logo {
  width: 72px;
  height: 72px;
}

h1 {
  margin: 0.75rem 0 1.25rem;
  font-size: 1.75rem;
  font-weight: 650;
  letter-spacing: -0.03em;
}

form {
  text-align: left;
}

label {
  display: block;
  margin-bottom: 0.9rem;
  color: #3a3a3a;
  font-size: 0.92rem;
  font-weight: 600;
}

input {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fafafa;
  font: inherit;
  font-weight: 400;
}

input:focus {
  outline: 2px solid rgb(66 80 175 / 35%);
  border-color: var(--primary);
  background: #fff;
}

button {
  width: 100%;
  margin-top: 0.4rem;
  padding: 0.8rem 1rem;
  border: 0;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

button:hover {
  background: #36439a;
}

.error {
  margin: 0 0 0.9rem;
  padding: 0.65rem 0.75rem;
  border-radius: 12px;
  background: #fdecec;
  color: var(--error);
  font-size: 0.9rem;
  font-weight: 500;
}

.lead {
  margin: -0.4rem 0 1.1rem;
  color: #3a3a3a;
  text-align: left;
}

.extra {
  margin: 1rem 0 0;
  font-size: 0.92rem;
}

.extra a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}

.extra a:hover {
  text-decoration: underline;
}