/* =====================================================
   LOGIN PAGE STYLES
   Standalone login page using theme_variables.css
   ===================================================== */

/* Body — gradient background, full viewport centering */
body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: var(--body-bg-color);
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Centering wrapper */
.login-container {
  width: 100%;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}

/* Card */
.login-card {
  background: var(--container-bg-color);
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  padding: 40px;
  width: 100%;
  max-width: 420px;
  box-sizing: border-box;
}

/* Logo — light/dark switching */
.login-logo {
  text-align: center;
  margin-bottom: 10px;
}

.login-logo img {
  width: 200px;
  height: auto;
}

.logo-light {
  display: block;
  margin: 0 auto;
}

.logo-dark {
  display: none;
  margin: 0 auto;
}

html[data-theme="dark"] .logo-light {
  display: none;
}

html[data-theme="dark"] .logo-dark {
  display: block;
}

@media (prefers-color-scheme: dark) {
  html[data-theme="auto"] .logo-light {
    display: none;
  }

  html[data-theme="auto"] .logo-dark {
    display: block;
  }
}

/* Title */
.login-title {
  text-align: center;
  color: var(--text-header-color);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 10px;
}

/* Theme switcher — centered below title */
.login-card .theme-switcher {
  margin: 0 0 25px;
}

/* Error messages */
.login-errors {
  background: var(--alert-danger-bg-color);
  color: var(--alert-danger-text-color);
  border: 1px solid var(--alert-danger-border-color);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 20px;
  font-size: 0.875rem;
  line-height: 1.5;
}

.login-errors p {
  margin: 0;
}

.login-errors p + p {
  margin-top: 4px;
}

/* Form group */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  color: var(--text-secondary-color);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 12px 14px;
  border: 2px solid var(--form-border-color);
  border-radius: 10px;
  background: var(--form-bg-color);
  color: var(--form-text-color);
  font-size: 1rem;
  font-family: inherit;
  box-sizing: border-box;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.form-group input::placeholder {
  color: var(--form-placeholder-color);
}

.form-group input:focus {
  outline: none;
  border-color: var(--form-focus-border-color);
  box-shadow: 0 0 0 3px rgba(58, 141, 222, 0.15);
}

/* Submit button */
.login-submit {
  width: 100%;
  padding: 14px;
  margin-top: 8px;
  border: none;
  border-radius: 10px;
  background: var(--primary-button-bg);
  color: var(--primary-button-text);
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
  box-shadow: 0 4px 15px var(--button-shadow-color);
}

.login-submit:hover {
  background: var(--primary-button-hover-bg);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--button-shadow-color);
}

.login-submit:active {
  transform: translateY(0);
}

/* Install button */
.login-install-btn {
  width: 100%;
  padding: 12px;
  margin-top: 12px;
  border: 2px solid var(--form-border-color);
  border-radius: 10px;
  background: var(--form-bg-color);
  color: var(--text-secondary-color);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition:
    background 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease;
}

.login-install-btn:hover:not(:disabled) {
  background: var(--form-focus-border-color);
  border-color: var(--form-focus-border-color);
  color: white;
  transform: translateY(-2px);
}

.login-install-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Responsive — smaller screens */
@media (max-width: 480px) {
  .login-card {
    padding: 30px 20px;
    border-radius: 16px;
  }

  .login-logo img {
    width: 160px;
  }

  .login-title {
    font-size: 1.25rem;
  }
}