/* 登录页：复用 tokens.css 设计变量；径向渐变背景 + 居中卡片。 */

.login-body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.login-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(59, 130, 246, 0.18), transparent 55%),
    radial-gradient(ellipse at 85% 85%, rgba(167, 139, 250, 0.14), transparent 60%),
    var(--bg);
  z-index: 0;
}

.login-main {
  position: relative;
  z-index: 1;
  width: 100%;
  display: flex;
  justify-content: center;
}

.login-card {
  width: 360px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px 24px;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 24px 64px -24px rgba(0, 0, 0, 0.6);
}

.login-brand {
  text-align: center;
  margin-bottom: 24px;
}
.login-brand h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-primary);
}
.login-brand p {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.login-label {
  font-size: 12px;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}
.login-input {
  background: var(--bg);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.login-input:focus {
  border-color: var(--accent-info);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.18);
}
.login-input.is-error {
  border-color: var(--accent-neg);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.16);
}

.login-error {
  margin: 0;
  color: var(--accent-neg);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.login-submit {
  margin-top: 8px;
  background: var(--accent-info);
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s;
}
.login-submit:hover { background: #2f6fdb; }
.login-submit:active { transform: translateY(1px); }

.login-footer {
  margin-top: 24px;
  text-align: center;
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

@media (max-width: 480px) {
  .login-card {
    width: calc(100vw - 32px);
    padding: 24px 20px 18px;
  }
}