@layer business {
/* ============================================================================
   Login Overlay - 登录遮罩（强制登录页）
   ============================================================================ */

#login-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg-void);
  display: flex;
  align-items: center;
  justify-content: center;
}

#login-overlay.hidden {
  display: none;
}

.login-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color-default);
  box-shadow: var(--paper-shadow);
  border-radius: 6px;
  padding: 40px 36px;
  width: min(320px, 90vw);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-logo {
  text-align: center;
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.login-title {
  text-align: center;
  font-family: var(--font-main);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 1px;
  margin-bottom: 8px;
}

#login-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
}

#login-fields,
#setup-fields .setup-field-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.login-box input[type="text"],
.login-box input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-color-default);
  border-radius: 4px;
  font-size: 0.9rem;
  color: var(--text-main);
  font-family: var(--font-main);
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}

.login-box input::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

.login-box input:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(43, 94, 167, 0.12);
}

#overlay-error {
  color: var(--color-secondary);
  font-size: 0.8rem;
  text-align: center;
  min-height: 1.2em;
}

#overlay-btn-login {
  background: var(--color-primary);
  color: #fff;
  border: 1px solid var(--color-primary);
  padding: 11px 16px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font-main);
  transition: all 0.2s;
  width: 100%;
  margin-top: 4px;
}

#overlay-btn-login:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 2px 6px rgba(43, 94, 167, 0.25);
}

#overlay-btn-login:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

#overlay-btn-setup {
  background: transparent;
  color: var(--text-muted);
  border: 1px dashed var(--border-color-default);
  padding: 9px 16px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.82rem;
  font-family: var(--font-main);
  transition: all 0.2s;
  width: 100%;
}

#overlay-btn-setup:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

#overlay-btn-setup:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* 本地有 token 时，首次绘制前直接隐藏登录页、显示应用，避免闪烁 */
html.has-token #login-overlay { display: none; }
html.has-token #app { display: flex; }

/* ── 桌面版下载链接 ─────────────────────────────────────── */

.desktop-downloads {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color-default);
  text-align: center;
}

.desktop-downloads-title {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.desktop-downloads-links {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.desktop-dl-btn {
  text-decoration: none;
  font-size: 12px;
}

}