:root {
  color-scheme: light;
  --bg: #eef3f9;
  --card: #ffffff;
  --line: #d8e0ea;
  --text: #1b2430;
  --muted: #5e6b7a;
  --accent: #1f6feb;
  --danger: #c62828;
  --warn: #956400;
  --shadow: 0 18px 40px rgba(20, 30, 50, 0.10);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top right, rgba(31, 111, 235, 0.10), transparent 34%),
    linear-gradient(180deg, #f4f8fd 0%, #eaf0f8 100%);
  color: var(--text);
  -webkit-user-select: none;
  user-select: none;
}

input,
select,
textarea {
  -webkit-user-select: text;
  user-select: text;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
}

.auth-card {
  width: min(100%, 460px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.auth-card-wide {
  width: min(100%, 680px);
}

.auth-kicker {
  margin: 0 0 6px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.auth-card h1 {
  margin: 0;
  font-size: 28px;
}

.auth-lead {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.auth-form {
  margin-top: 18px;
}

.auth-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.auth-field-wide {
  grid-column: 1 / -1;
}

.auth-field span {
  font-size: 13px;
  color: var(--muted);
}

.auth-field input,
.auth-field select {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  font: inherit;
}

.auth-primary {
  width: 100%;
  margin-top: 6px;
  border: 0;
  border-radius: 12px;
  padding: 13px 16px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.auth-message {
  border-radius: 14px;
  padding: 12px 14px;
  margin-top: 16px;
  line-height: 1.6;
}

.auth-message a {
  color: inherit;
  font-weight: 700;
}

.auth-message-info {
  background: #edf5ff;
  color: #124191;
}

.auth-message-error {
  background: #fdecec;
  color: var(--danger);
}

.auth-message-warn {
  background: #fff5d8;
  color: var(--warn);
}

.auth-foot {
  margin-top: 20px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.auth-foot p {
  margin: 0;
}

.auth-foot p + p {
  margin-top: 8px;
}

.auth-foot a {
  color: var(--accent);
}

@media (max-width: 640px) {
  .auth-card {
    padding: 22px 18px;
  }

  .auth-card h1 {
    font-size: 24px;
  }

  .auth-grid {
    grid-template-columns: 1fr;
  }

  .auth-field-wide {
    grid-column: auto;
  }
}