:root {
  --login-width: 448px;
  --login-backdrop: rgba(23, 32, 51, 0.44);
  --login-button: var(--brand-700, #1f4b99);
  --login-button-hover: var(--brand-600, #2b5fb8);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text-primary, #172033);
  font-family: "SF Pro Display", "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-app, #f6f8fb);
}

body.dialog-open {
  overflow: hidden;
}

button,
input {
  font: inherit;
}

code {
  display: inline-flex;
  align-items: center;
  padding: 0 6px;
  border-radius: 6px;
  background: rgba(23, 21, 18, 0.06);
  color: var(--cp-ink, #171512);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.95em;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
}

.login-page {
  width: min(var(--login-width), 100%);
}

.login-panel {
  display: grid;
  gap: 18px;
  padding: 24px;
  border-radius: 16px;
}

.login-panel-header {
  display: grid;
  gap: 8px;
}

.login-brand {
  display: flex;
  justify-content: center;
  margin-bottom: 2px;
}

.login-brand-wordmark {
  display: inline-flex;
  align-items: baseline;
  font-size: 42px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.055em;
}

.login-brand-primary {
  color: var(--wordmark-rally, #011d5c);
}

.login-brand-accent {
  color: var(--wordmark-cat, #016cdf);
}

.login-panel-kicker {
  color: var(--cp-muted, #667085);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.login-panel-title {
  margin: 0;
  font-size: 30px;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.login-panel-lead,
.field-help,
.login-dialog-lead,
.login-dialog-item-copy {
  color: var(--cp-muted, #667085);
}

.login-panel-lead,
.login-dialog-lead {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
}

.login-form {
  display: grid;
  gap: 16px;
}

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

label {
  color: var(--cp-ink, #171512);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
}

input {
  width: 100%;
  border: 1px solid var(--cp-line, #d9dee5);
  border-radius: 10px;
  background: #fff;
  padding: 13px 14px;
  font-size: 15px;
  color: var(--cp-ink, #171512);
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

input::placeholder {
  color: #98a2b3;
}

input:focus {
  outline: none;
  border-color: var(--brand-500, #3f78d1);
  box-shadow: 0 0 0 4px rgba(63, 120, 209, 0.12);
}

.field-help {
  font-size: 12px;
  line-height: 1.55;
}

.message {
  display: none;
  margin: 0;
  padding: 12px 14px;
  border: 1px solid rgba(47, 122, 82, 0.18);
  border-radius: 10px;
  background: var(--success-bg, #edf8f2);
  color: var(--success-text, #2f7a52);
  font-size: 13px;
  line-height: 1.6;
}

.message.error {
  border-color: rgba(181, 71, 71, 0.18);
  background: var(--danger-bg, #fff0f0);
  color: var(--danger-text, #b54747);
}

.sheet-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

button {
  appearance: none;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease, opacity 120ms ease;
}

button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(63, 120, 209, 0.12);
}

#login-button {
  width: 100%;
  min-height: 46px;
  padding: 12px 16px;
  color: #fff;
  background: var(--login-button);
  font-size: 15px;
  font-weight: 700;
}

#login-button:hover:not(:disabled) {
  background: var(--login-button-hover);
}

#login-button:disabled {
  opacity: 0.78;
  cursor: wait;
}

.login-secondary {
  padding-top: 4px;
  border-top: 1px solid var(--cp-line, #d9dee5);
}

.login-secondary-link {
  padding: 0;
  border: none;
  background: transparent;
  color: var(--cp-muted, #667085);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.6;
  text-align: left;
}

.login-secondary-link:hover {
  color: var(--cp-ink, #171512);
}

.login-dialog-backdrop[hidden],
.login-dialog[hidden] {
  display: none !important;
}

.login-dialog-backdrop {
  position: fixed;
  inset: 0;
  background: var(--login-backdrop);
  z-index: 30;
}

.login-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 31;
  width: min(460px, calc(100% - 32px));
  display: grid;
  gap: 14px;
  padding: 22px;
  border: 1px solid var(--cp-line, #d9dee5);
  border-radius: 16px;
  background: var(--cp-panel, #ffffff);
  box-shadow: 0 24px 60px rgba(23, 21, 18, 0.18);
  transform: translate(-50%, -50%);
}

.login-dialog h2 {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.login-dialog-list {
  display: grid;
  gap: 10px;
}

.login-dialog-item {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--cp-line, #d9dee5);
  border-radius: 12px;
  background: var(--cp-panel-muted, #fafbfc);
}

.login-dialog-item-label {
  color: var(--cp-muted, #667085);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.login-dialog-item-copy {
  font-size: 13px;
  line-height: 1.6;
}

.login-dialog-actions {
  justify-content: flex-end;
}

.login-dialog-link {
  color: var(--cp-muted, #667085);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.6;
  text-decoration: none;
}

.login-dialog-link:hover {
  color: var(--cp-ink, #171512);
}

.login-dialog-close {
  min-height: 40px;
  padding: 10px 14px;
  border: 1px solid var(--cp-line-strong, #c6ced8);
  background: #fff;
  color: var(--cp-ink, #171512);
  font-size: 14px;
  font-weight: 700;
}

.login-dialog-close:hover {
  border-color: var(--cp-ink, #171512);
}

@media (max-width: 560px) {
  .login-shell {
    padding: 18px 12px;
  }

  .login-panel {
    padding: 20px;
  }

  .login-brand-wordmark {
    font-size: 38px;
  }

  .login-panel-title {
    font-size: 28px;
  }

  .login-dialog {
    top: auto;
    bottom: 16px;
    left: 16px;
    right: 16px;
    width: auto;
    transform: none;
  }
}