/* ==================================================
   AUTH BUTTONS & ACTIONS STYLES
   ================================================== */

/* Primary button */
.btn-primary {
  width: 100%;
  height: var(--button-height-l);
  background-color: var(--button-color-bg-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--button-border-radius);
  font-size: var(--font-size-s);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all 0.15s ease;
  margin-bottom: var(--size-spacing-l);
}

.btn-primary:hover {
  background-color: var(--button-color-bg-primary-hover);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Loading state */
.btn-primary.loading {
  position: relative;
  color: transparent;
}

.btn-primary.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: var(--size-spacing-m);
  height: var(--size-spacing-m);
  border: var(--size-border-width-l) solid var(--color-white);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Divider */
.auth-divider {
  text-align: center;
  margin: var(--size-spacing-l) 0;
  position: relative;
}

.auth-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: var(--size-border-width-s);
  background-color: var(--color-grey-200);
  z-index: 1;
}

.auth-divider-text {
  background-color: var(--color-bg-primary);
  padding: 0 var(--size-spacing-m);
  font-size: var(--font-size-xs);
  color: var(--color-grey-500);
  position: relative;
  z-index: 2;
}

/* Social login buttons */
.social-login {
  display: flex;
  gap: var(--size-spacing-m);
  margin-bottom: var(--size-spacing-l);
}

.social-btn {
  flex: 1;
  height: var(--button-height-m);
  display: flex;
  align-items: center;
  justify-content: center;
  border: var(--size-border-width-s) solid var(--color-grey-200);
  border-radius: var(--size-border-radius-s);
  background-color: var(--color-bg-primary);
  cursor: pointer;
  text-decoration: none;
  color: var(--color-black);
}

.social-btn img {
  width: var(--size-icon-m);
  height: var(--size-icon-m);
}

/* Footer link */
.auth-footer {
  text-align: center;
  font-size: var(--font-size-xs);
  color: var(--color-grey-500);
}

.auth-footer a {
  color: var(--color-text-link);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
}

.auth-footer a:hover {
  text-decoration: underline;
}

/* ==================================================
   RESPONSIVE BUTTONS
   ================================================== */

@media (max-width: 768px) {
  .social-login {
    flex-direction: column;
  }
  
  .social-btn {
    padding: 15px;
  }
}

@media (max-width: 480px) {
  .btn-primary {
    height: 48px;
  }
  
  .social-btn {
    height: 44px;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .btn-primary {
    border: var(--size-border-width-l) solid var(--color-black);
  }
}