/* Mobile navigation and Safari support-button alignment. */
.df-mobile-nav { display: none; }

@media (max-width: 767px) {
  html {
    scroll-padding-bottom: calc(76px + env(safe-area-inset-bottom, 0px));
  }

  body.df-page {
    --df-mobile-nav-height: 64px;
    --df-mobile-nav-bg: #0b1b1c;
    --df-mobile-nav-text: #b2c6c5;
    --df-mobile-nav-accent: #22efaa;
    --df-mobile-nav-active: rgba(34, 239, 170, .10);
    --df-mobile-nav-line: rgba(98, 166, 148, .28);
    padding-bottom: calc(var(--df-mobile-nav-height) + env(safe-area-inset-bottom, 0px));
    padding-left: env(safe-area-inset-left, 0px);
    padding-right: env(safe-area-inset-right, 0px);
  }

  html[data-theme="light"] body.df-page {
    --df-mobile-nav-bg: #f7fcfa;
    --df-mobile-nav-text: #4e6761;
    --df-mobile-nav-accent: #087a51;
    --df-mobile-nav-active: rgba(8, 122, 81, .08);
    --df-mobile-nav-line: rgba(8, 122, 81, .19);
  }

  .df-page .df-mobile-nav {
    position: fixed;
    z-index: 29;
    inset: auto 0 0;
    display: flex;
    align-items: stretch;
    justify-content: space-around;
    box-sizing: border-box;
    height: calc(var(--df-mobile-nav-height) + env(safe-area-inset-bottom, 0px));
    margin: 0;
    padding: 4px calc(6px + env(safe-area-inset-right, 0px))
      calc(4px + env(safe-area-inset-bottom, 0px))
      calc(6px + env(safe-area-inset-left, 0px));
    border: 0;
    border-top: 1px solid var(--df-mobile-nav-line);
    background: var(--df-mobile-nav-bg);
    box-shadow: 0 -6px 20px rgba(0, 0, 0, .12);
  }

  .df-page .df-mobile-nav__link {
    position: relative;
    display: flex;
    flex: 1 1 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    min-width: 0;
    min-height: 48px;
    margin: 0;
    padding: 4px 2px;
    border: 0;
    border-radius: 8px;
    color: var(--df-mobile-nav-text);
    background: transparent;
    font-size: 11px;
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: 0;
    text-align: center;
    text-decoration: none;
    text-transform: none;
    white-space: nowrap;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }

  .df-page .df-mobile-nav__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 27px;
    width: 38px;
    height: 27px;
    border-radius: 9px;
  }

  .df-page .df-mobile-nav__icon svg {
    display: block;
    flex: none;
    width: 23px;
    height: 23px;
    overflow: visible;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .df-page .df-mobile-nav__link[aria-current="page"] {
    color: var(--df-mobile-nav-accent);
    font-weight: 600;
  }

  .df-page .df-mobile-nav__link[aria-current="page"] .df-mobile-nav__icon {
    background: var(--df-mobile-nav-active);
  }

  .df-page .df-mobile-nav__link[aria-current="page"]::before {
    content: "";
    position: absolute;
    top: -4px;
    left: 50%;
    width: 22px;
    height: 3px;
    border-radius: 0 0 3px 3px;
    background: currentColor;
    transform: translateX(-50%);
  }

  .df-page .df-mobile-nav__link:active {
    background: var(--df-mobile-nav-active);
  }

  .df-page .df-mobile-nav__link:focus-visible {
    outline: 2px solid var(--df-mobile-nav-accent);
    outline-offset: -2px;
  }

  /* Reset native iOS button padding/appearance before centering the badge. */
  .df-page .floating-zalo {
    -webkit-appearance: none;
    appearance: none;
    position: fixed;
    z-index: 28;
    top: auto;
    right: calc(12px + env(safe-area-inset-right, 0px));
    bottom: calc(var(--df-mobile-nav-height) + 12px + env(safe-area-inset-bottom, 0px));
    left: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    width: 52px;
    min-width: 52px;
    height: 52px;
    min-height: 52px;
    margin: 0;
    padding: 0;
    border: 1px solid #69a5ff;
    border-radius: 50%;
    line-height: 1;
    text-align: center;
    text-indent: 0;
    transform: none;
    touch-action: manipulation;
  }

  .df-page .floating-zalo > .zalo-pill {
    position: static;
    display: flex;
    flex: 0 0 32px;
    align-items: center;
    justify-content: center;
    width: 32px;
    min-width: 0;
    height: 24px;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif !important;
    font-size: 11px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -.03em;
    transform: none;
  }
}