:root {
  --text: #1f2845;
  --muted: #667393;
  --line: rgba(91, 111, 168, 0.14);
  --red-deep: #cb4665;
  --blue-deep: #3f91df;
  --shadow: 0 24px 60px rgba(60, 86, 149, 0.16);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Outfit", "Noto Sans SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(243, 96, 125, 0.22), transparent 24%),
    radial-gradient(circle at top right, rgba(102, 188, 255, 0.22), transparent 24%),
    linear-gradient(180deg, #f7fbff 0%, #edf4ff 100%);
  display: grid;
  place-items: center;
  padding: 20px;
}

.login-shell {
  width: min(100%, 560px);
}

.login-card {
  padding: 30px;
  border-radius: 34px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.login-brand {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 18px;
  align-items: center;
}

.login-brand img {
  width: 86px;
  height: 86px;
  border-radius: 28px;
  background: #fff;
}

.eyebrow {
  margin: 0;
  color: var(--red-deep);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.login-brand h1 {
  margin: 10px 0 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(2rem, 5vw, 3rem);
}

.lead {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.login-form {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.login-form label {
  display: grid;
  gap: 8px;
}

.login-form span,
.note-title {
  font-weight: 700;
}

.login-form input {
  min-height: 52px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(248, 251, 255, 0.9);
  font: inherit;
}

.login-button {
  min-height: 54px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--red-deep), var(--blue-deep));
  color: #fff;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.login-message {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.login-message.is-error {
  color: var(--red-deep);
}

.login-note {
  margin-top: 22px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(248, 251, 255, 0.88);
}

.login-note p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.login-note code {
  padding: 2px 6px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  color: var(--text);
}

.back-link {
  display: inline-flex;
  margin-top: 18px;
  color: var(--red-deep);
  font-weight: 700;
}

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

  .login-brand {
    grid-template-columns: 1fr;
  }
}