:root {
  color-scheme: light;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #f8fafc;
  --panel: #ffffff;
  --panel-muted: #f5f8fb;
  --panel-subtle: #f8fbfe;
  --line: #cfd9e5;
  --text: #0f172a;
  --muted: #5d6b7d;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --green: #15803d;
  --red: #9f2f2f;
  background: var(--bg);
  color: var(--text);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
}

.login-shell {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 20% 20%, rgb(37 99 235 / 13%), transparent 34rem),
    radial-gradient(circle at 80% 85%, rgb(21 128 61 / 8%), transparent 28rem),
    var(--bg);
}

.login-card {
  width: min(100%, 460px);
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgb(255 255 255 / 96%);
  box-shadow: 0 18px 55px rgb(30 45 70 / 14%);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(28px, 5vw, 34px);
  line-height: 1.12;
}

.login-copy {
  margin: 14px 0 28px;
  color: var(--muted);
  line-height: 1.55;
}

form {
  display: grid;
  gap: 18px;
}

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

label {
  font-size: 13px;
  font-weight: 700;
}

input {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: inherit;
  font: inherit;
  font-size: 16px;
}

input:focus {
  border-color: var(--blue);
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 3px solid #2563eb;
  outline-offset: 2px;
}

button {
  min-height: 48px;
  border: 0;
  border-radius: 8px;
  background: var(--blue);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

button:hover:not(:disabled) {
  background: var(--blue-dark);
}

button:disabled {
  cursor: wait;
  opacity: 0.65;
}

.login-status {
  min-height: 22px;
  margin: 18px 0 0;
  color: var(--red);
  font-size: 14px;
  line-height: 1.45;
}

.login-status.success {
  color: var(--green);
}

.login-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.45;
}

.login-footer a {
  color: var(--blue-dark);
  font-weight: 800;
  text-underline-offset: 2px;
}

.secondary-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 6px;
  color: var(--blue-dark);
  font-size: 14px;
  font-weight: 800;
}

.password-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.password-toggle {
  min-width: 96px;
  padding: 0 12px;
  border: 1px solid var(--line);
  color: var(--blue-dark);
  background: var(--panel-muted);
}

.password-toggle:hover:not(:disabled) {
  background: #e8f1ff;
}

.field-hint,
.field-error {
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
}

.field-hint {
  color: var(--muted);
}

.field-error {
  color: var(--red);
}

.field-error:empty {
  display: none;
}

.security-note {
  display: grid;
  gap: 4px;
  margin: -12px 0 24px;
  padding: 12px 14px;
  border: 1px solid #b9d2fa;
  border-radius: 8px;
  color: var(--text);
  background: #eff6ff;
  font-size: 13px;
  line-height: 1.45;
}

.security-note span {
  color: var(--muted);
}

@media (max-width: 520px) {
  .login-shell {
    align-items: start;
    padding: 16px;
  }

  .login-card {
    margin-top: 16px;
    padding: 24px;
  }

  .password-control {
    grid-template-columns: minmax(0, 1fr) 88px;
  }

  .password-toggle {
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  button {
    transition: none;
  }
}