/**
 * Luat Duong Tri button system — 2026-10-20.
 * Visual reference: original orange menu gradient, white ink and pill radius; user selected.
 * Scoped to explicit CTA components. No heading, menu, TOC, or generic form rules.
 * Content migration removes conflicting inline !important button declarations.
 * The [class] qualifier gives canonical controls precedence over legacy G1 rules.
 */

:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) :is(a, button).ldt-ui-btn[class],
.language_change a.contact_link,
.ldt-article-cta a.ldt-article-cta-button,
.ldt-sidebar-cta a.ldt-sidebar-cta-button,
.ldt-archive-cta a.ldt-archive-cta-button,
.ldt-footer-source a.ldt-footer-cta-btn,
.ldt-contact-page form.fluent_form_6 .wpf_has_custom_css.ff-btn-submit,
#ldt-callback-contact .ldt-cb-submit {
  --ldt-ui-surface: #ffffff;
  --ldt-ui-ink: #082c50;
  --ldt-ui-border: #082c50;
  box-sizing: border-box;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 8px;
  min-width: 0;
  max-width: 100%;
  min-height: 48px !important;
  height: auto !important;
  padding: 11px 20px !important;
  border: 1px solid var(--ldt-ui-border) !important;
  border-radius: 5rem !important;
  background: var(--ldt-ui-surface) !important;
  color: var(--ldt-ui-ink) !important;
  box-shadow: none !important;
  font-size: 16px !important;
  font-weight: 600 !important;
  font-style: normal;
  line-height: 1.5 !important;
  letter-spacing: normal !important;
  text-align: center;
  text-decoration: none !important;
  text-transform: none !important;
  white-space: normal;
  vertical-align: middle;
  cursor: pointer;
  transform: none !important;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease !important;
}

:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) :is(a, button).ldt-ui-btn--primary[class],
.language_change a.contact_link,
.ldt-article-cta a.ldt-article-cta-button.is-primary,
.ldt-sidebar-cta a.ldt-sidebar-cta-button,
.ldt-archive-cta a.ldt-archive-cta-button,
.ldt-footer-source a.ldt-footer-cta-btn,
.ldt-contact-page form.fluent_form_6 .wpf_has_custom_css.ff-btn-submit,
#ldt-callback-contact .ldt-cb-submit {
  --ldt-ui-surface: var(--Gradient_1, linear-gradient(90deg, #ee3124 0%, #f99d20 100%));
  --ldt-ui-ink: #ffffff;
  --ldt-ui-border: transparent;
}

:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) :is(a, button).ldt-ui-btn--secondary[class],
.ldt-article-cta a.ldt-article-cta-button.is-secondary {
  --ldt-ui-surface: #ffffff;
  --ldt-ui-ink: #082c50;
  --ldt-ui-border: #082c50;
}

:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) :is(a, button).ldt-ui-btn--inverse[class] {
  --ldt-ui-surface: transparent;
  --ldt-ui-ink: #ffffff;
  --ldt-ui-border: #ffffff;
}

:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) :is(a, button).ldt-ui-btn--compact[class],
.language_change a.contact_link,
.ldt-sidebar-cta a.ldt-sidebar-cta-button,
.ldt-footer-source a.ldt-footer-cta-btn {
  min-height: 44px !important;
  padding: 10px 16px !important;
  font-size: 14px !important;
  line-height: 1.5 !important;
}

:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) .ldt-ui-actions,
.ldt-article-cta .ldt-article-cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) .ldt-ui-btn > svg,
:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) .ldt-ui-btn > .ldt-ui-icon,
.language_change a.contact_link .icon svg {
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  max-width: 20px;
}

.language_change a.contact_link .icon svg {
  margin: 0;
}

.language_change a.contact_link svg [fill]:not([fill="none"]) {
  fill: currentColor;
}

/* Content navigation remains an explicit link, even if it retains an old CTA class. */
:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) a.ldt-ui-link[class] {
  display: inline !important;
  min-height: 0 !important;
  height: auto !important;
  max-width: 100%;
  padding: 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  color: #082c50 !important;
  box-shadow: none !important;
  font-size: 16px !important;
  font-weight: 600 !important;
  line-height: 1.5 !important;
  text-decoration: underline !important;
  text-decoration-thickness: 1px !important;
  text-underline-offset: 4px;
  text-transform: none !important;
  transform: none !important;
  white-space: normal;
}

:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) a.ldt-ui-link.ldt-ui-link--inverse[class] {
  color: #ffffff !important;
}

/* Dual-color focus rings remain visible on both white and navy surfaces. */
:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) :is(.ldt-ui-btn, .ldt-ui-link)[class]:focus-visible,
.language_change a.contact_link:focus-visible,
.ldt-article-cta a.ldt-article-cta-button:focus-visible,
.ldt-sidebar-cta a.ldt-sidebar-cta-button:focus-visible,
.ldt-archive-cta a.ldt-archive-cta-button:focus-visible,
.ldt-footer-source a.ldt-footer-cta-btn:focus-visible,
.ldt-contact-page form.fluent_form_6 .wpf_has_custom_css.ff-btn-submit:focus-visible,
#ldt-callback-contact :is(.ldt-cb-submit, .ldt-contact-zalo, .ldt-contact-phone, .ldt-contact-callback, .ldt-cb-close):focus-visible {
  outline: 3px solid #082c50 !important;
  outline-offset: 3px !important;
  box-shadow: 0 0 0 3px #ffffff !important;
}

:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) :is(a, button).ldt-ui-btn[class]:is(:disabled, [aria-disabled="true"]),
.ldt-contact-page form.fluent_form_6 .wpf_has_custom_css.ff-btn-submit:is(:disabled, .disabled),
#ldt-callback-contact .ldt-cb-submit:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) :is(a, button).ldt-ui-btn[class][aria-busy="true"],
.ldt-contact-page form.fluent_form_6 .wpf_has_custom_css.ff-btn-submit.ff-working,
#ldt-callback-contact .ldt-cb-submit:disabled {
  cursor: wait;
}

@media (hover: hover) {
  :is(.ldt-source, .ldt-footer-source, .ldt-home-demo) :is(a, button).ldt-ui-btn--primary[class]:hover:not(:disabled):not([aria-disabled="true"]),
  .language_change a.contact_link:hover,
  .ldt-article-cta a.ldt-article-cta-button.is-primary:hover,
  .ldt-sidebar-cta a.ldt-sidebar-cta-button:hover,
  .ldt-archive-cta a.ldt-archive-cta-button:hover,
  .ldt-footer-source a.ldt-footer-cta-btn:hover,
  .ldt-contact-page form.fluent_form_6 .wpf_has_custom_css.ff-btn-submit:hover:not(:disabled):not(.disabled),
  #ldt-callback-contact .ldt-cb-submit:hover:not(:disabled) {
    --ldt-ui-surface: var(--Gradient_1, linear-gradient(90deg, #ee3124 0%, #f99d20 100%));
    --ldt-ui-border: transparent;
  }

  :is(.ldt-source, .ldt-footer-source, .ldt-home-demo) :is(a, button).ldt-ui-btn--secondary[class]:hover:not(:disabled):not([aria-disabled="true"]),
  .ldt-article-cta a.ldt-article-cta-button.is-secondary:hover {
    --ldt-ui-surface: #f1f6fa;
  }

  :is(.ldt-source, .ldt-footer-source, .ldt-home-demo) :is(a, button).ldt-ui-btn--inverse[class]:hover:not(:disabled):not([aria-disabled="true"]) {
    --ldt-ui-surface: #ffffff;
    --ldt-ui-ink: #082c50;
    --ldt-ui-border: #ffffff;
  }

  :is(.ldt-source, .ldt-footer-source, .ldt-home-demo) a.ldt-ui-link[class]:hover {
    text-decoration-thickness: 2px !important;
  }
}

:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) :is(a, button).ldt-ui-btn--primary[class]:active:not(:disabled):not([aria-disabled="true"]),
.language_change a.contact_link:active,
.ldt-article-cta a.ldt-article-cta-button.is-primary:active,
.ldt-sidebar-cta a.ldt-sidebar-cta-button:active,
.ldt-archive-cta a.ldt-archive-cta-button:active,
.ldt-footer-source a.ldt-footer-cta-btn:active,
.ldt-contact-page form.fluent_form_6 .wpf_has_custom_css.ff-btn-submit:active:not(:disabled),
#ldt-callback-contact .ldt-cb-submit:active:not(:disabled) {
  --ldt-ui-surface: var(--Gradient_1, linear-gradient(90deg, #ee3124 0%, #f99d20 100%));
  --ldt-ui-border: transparent;
}

/* These selectors affect only the existing contact widget. */
#ldt-callback-contact.ldt-source :is(.ldt-contact-zalo, .ldt-contact-callback, .ldt-contact-phone) {
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease !important;
  transform: none !important;
}

#ldt-callback-contact .ldt-contact-label,
.ldt-contact-mobile-spacer {
  display: none;
}

#ldt-callback-contact.ldt-source .ldt-cb-close {
  display: inline-flex;
  flex: 0 0 44px;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  min-height: 44px;
  margin: -6px -6px -6px 0;
  padding: 0;
}

/* Mark the verified retired wrapper with both attributes during migration. */
.fixed-buttons[data-ldt-retired="true"][aria-hidden="true"],
body.page-id-44334 .ldt-source .ldt-fdi-mobile-sticky[data-ldt-retired="true"][aria-hidden="true"],
body.page-id-46020 .ldt-source .ldt-fdi-mobile-sticky[data-ldt-retired="true"][aria-hidden="true"],
body.page-id-44348 .ldt-source.ldt-irc-ldp .ldt-mobile-sticky[data-ldt-retired="true"][aria-hidden="true"] {
  display: none !important;
}

@media (max-width: 767px) {
  .language_change a.contact_link {
    width: 44px !important;
    min-width: 44px;
    min-height: 44px !important;
    height: 44px !important;
    padding: 0 !important;
    gap: 0;
    font-size: 0 !important;
  }

  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] {
    position: fixed;
    z-index: 10010;
    left: 12px;
    right: 12px;
    bottom: calc(8px + env(safe-area-inset-bottom, 0px));
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
    gap: 12px;
    width: auto;
    max-width: 520px;
    margin: 0 auto;
    padding: 8px;
    border: 1px solid #d4dfe8;
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 4px 20px rgba(8, 44, 80, 0.15);
  }

  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] :is(.ldt-contact-zalo, .ldt-contact-phone) {
    position: relative !important;
    inset: auto !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: auto !important;
    min-width: 0;
    max-width: 100%;
    height: auto !important;
    min-height: 48px !important;
    margin: 0 !important;
    padding: 5px 8px !important;
    border: 1px solid #082c50 !important;
    border-radius: 5rem !important;
    background: #ffffff !important;
    color: #082c50 !important;
    box-shadow: none !important;
    text-decoration: none !important;
    font-size: 14px !important;
    font-weight: 600;
    line-height: 1.25;
    text-align: center;
  }

  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] .ldt-contact-zalo {
    border-color: transparent !important;
    background: var(--Gradient_1, linear-gradient(90deg, #ee3124 0%, #f99d20 100%)) !important;
    color: #ffffff !important;
  }

  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] .ldt-contact-callback {
    display: none !important;
  }

  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] .ldt-contact-label {
    display: block;
    min-width: 0;
    white-space: normal;
    overflow-wrap: normal;
  }

  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] .ldt-contact-zalo img,
  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] .ldt-contact-phone svg {
    flex: 0 0 20px;
    width: 20px;
    height: 20px;
    max-width: 20px;
  }

  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] .ldt-cb-panel {
    right: 12px;
    bottom: calc(88px + env(safe-area-inset-bottom, 0px));
    max-width: calc(100vw - 24px);
    max-height: calc(100dvh - 108px - env(safe-area-inset-bottom, 0px));
    overscroll-behavior: contain;
  }

  #ldt-callback-contact[data-ldt-button-system="1"] ~ .ldt-contact-mobile-spacer {
    display: block;
    height: calc(88px + env(safe-area-inset-bottom, 0px));
  }
}

@media (prefers-reduced-motion: reduce) {
  :is(.ldt-source, .ldt-footer-source, .ldt-home-demo) :is(a, button):is(.ldt-ui-btn, .ldt-ui-link)[class],
  .language_change a.contact_link,
  .ldt-article-cta a.ldt-article-cta-button,
  .ldt-sidebar-cta a.ldt-sidebar-cta-button,
  .ldt-archive-cta a.ldt-archive-cta-button,
  .ldt-footer-source a.ldt-footer-cta-btn,
  .ldt-contact-page form.fluent_form_6 .wpf_has_custom_css.ff-btn-submit,
  #ldt-callback-contact :is(.ldt-cb-submit, .ldt-contact-zalo, .ldt-contact-phone, .ldt-contact-callback) {
    transition: none !important;
  }
}

/* Shared footer actions and no-JavaScript callback fallback. */
.ldt-footer-source .ldt-footer-cta-actions { flex-wrap: wrap; gap: 12px; flex-shrink: 1; }
:is(.ldt-source, .ldt-footer-source, .ldt-home-demo) a.ldt-ui-link[class] { align-self: center; }

/* Callback triggers stay unavailable until the existing widget has initialized. */
:is(.ldt-source, .ldt-footer-source) button.ldt-ui-btn[data-ldt-callback-open][hidden] {
  display: none !important;
}
.ldt-footer-source .ldt-footer-cta-actions {
  flex-wrap: wrap !important;
  gap: 12px !important;
  flex: 0 1 auto;
  min-width: 0;
}
.ldt-footer-source .ldt-footer-cta-actions > button[data-ldt-callback-open] {
  margin: 0 !important;
}

/* Verified consultation forms only; no search/upload/navigation controls. */
form:is(#fluentform_6, #fluentform_21, #fluentform_26, #fluentform_27, #fluentform_28, #fluentform_31, #fluentform_32) .ff-btn-submit {
  box-sizing: border-box;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 8px;
  min-width: 0;
  max-width: 100%;
  min-height: 48px !important;
  height: auto !important;
  padding: 11px 20px !important;
  border: 1px solid transparent !important;
  border-radius: 5rem !important;
  background: var(--Gradient_1, linear-gradient(90deg, #ee3124 0%, #f99d20 100%)) !important;
  color: #ffffff !important;
  box-shadow: none !important;
  font-size: 16px !important;
  font-weight: 600 !important;
  line-height: 1.5 !important;
  letter-spacing: normal !important;
  text-transform: none !important;
  text-align: center;
  white-space: normal;
  cursor: pointer;
  transform: none !important;
  transition: background-color 160ms ease, border-color 160ms ease !important;
}
@media (hover: hover) {
  form:is(#fluentform_6, #fluentform_21, #fluentform_26, #fluentform_27, #fluentform_28, #fluentform_31, #fluentform_32) .ff-btn-submit:hover:not(:disabled):not(.disabled) {
    background: var(--Gradient_1, linear-gradient(90deg, #ee3124 0%, #f99d20 100%)) !important;
    border-color: transparent !important;
  }
}
form:is(#fluentform_6, #fluentform_21, #fluentform_26, #fluentform_27, #fluentform_28, #fluentform_31, #fluentform_32) .ff-btn-submit:active:not(:disabled):not(.disabled) {
  background: var(--Gradient_1, linear-gradient(90deg, #ee3124 0%, #f99d20 100%)) !important;
  border-color: transparent !important;
}
form:is(#fluentform_6, #fluentform_21, #fluentform_26, #fluentform_27, #fluentform_28, #fluentform_31, #fluentform_32) .ff-btn-submit:focus-visible {
  outline: 3px solid #082c50 !important;
  outline-offset: 3px !important;
  box-shadow: 0 0 0 3px #ffffff !important;
}
form:is(#fluentform_6, #fluentform_21, #fluentform_26, #fluentform_27, #fluentform_28, #fluentform_31, #fluentform_32) .ff-btn-submit:is(:disabled, .disabled) {opacity: .55;cursor: not-allowed}
form:is(#fluentform_6, #fluentform_21, #fluentform_26, #fluentform_27, #fluentform_28, #fluentform_31, #fluentform_32) .ff-btn-submit:is(.ff-working, [aria-busy="true"]) {cursor: wait}
@media (prefers-reduced-motion: reduce) {
  form:is(#fluentform_6, #fluentform_21, #fluentform_26, #fluentform_27, #fluentform_28, #fluentform_31, #fluentform_32) .ff-btn-submit {transition: none !important}
}

/* Desktop contact controls share the same size, radius and action hierarchy. */
@media (min-width: 768px) {
  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] :is(.ldt-contact-zalo, .ldt-contact-callback) {
    width: 57.6px !important;
    height: 57.6px !important;
    min-height: 57.6px !important;
    padding: 0 !important;
    border: 1px solid #082c50 !important;
    border-radius: 5rem !important;
    background: #ffffff !important;
    color: #082c50 !important;
    box-shadow: none !important;
  }
  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] .ldt-contact-zalo {
    bottom: 93.6px;
    background: var(--Gradient_1, linear-gradient(90deg, #ee3124 0%, #f99d20 100%)) !important;
    border-color: transparent !important;
    color: #ffffff !important;
  }
  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] .ldt-contact-zalo img {
    width: 33.6px;
    height: 33.6px;
    max-width: 33.6px;
  }
  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] .ldt-contact-callback svg {
    width: 28.8px;
    height: 28.8px;
  }
  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] .ldt-contact-tip {
    right: 69.6px;
    padding: 9.6px 12px;
    border-radius: 14.4px;
    font-size: 14.4px;
    line-height: 14.4px;
  }
}
@media (min-width: 768px) and (hover: hover) {
  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] .ldt-contact-zalo:hover {background: var(--Gradient_1, linear-gradient(90deg, #ee3124 0%, #f99d20 100%)) !important}
  #ldt-callback-contact.ldt-source[data-ldt-button-system="1"] .ldt-contact-callback:hover {background: #fef8f0 !important}
}