/**
 * LND Floating Contact Buttons - Frontend Stylesheet
 * Scoped, Zero-conflict, Ultra-lightweight
 */

:root {
  --lnd-desktop-bottom: 25px;
  --lnd-desktop-side: 25px;
}

/* Container chung */
#lnd-floating-contact,
#lnd-floating-contact * {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

#lnd-floating-contact {
  position: fixed;
  z-index: 99990;
  pointer-events: none; /* Chỉ các nút bên trong mới nhận click */
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

#lnd-floating-contact .lnd-contact-inner {
  display: flex;
  pointer-events: auto;
}

/* Style cơ bản từng nút liên hệ */
#lnd-floating-contact .lnd-contact-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
  outline: none;
  border: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

#lnd-floating-contact .lnd-contact-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #ffffff;
  background-color: var(--lnd-btn-theme, #0068ff);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  transform-origin: center center;
  position: relative;
}

#lnd-floating-contact .lnd-icon-zalo {
  background-color: transparent;
  overflow: hidden;
}

#lnd-floating-contact .lnd-svg-icon {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

#lnd-floating-contact .lnd-img-icon {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 50%;
  pointer-events: none;
}

/* ==========================================================================
   DESKTOP STYLES (Màn hình > 768px)
   Hiển thị icon tròn kèm nhãn ngang chữ nhật bo góc sang trọng, nổi bật
   ========================================================================== */
@media screen and (min-width: 769px) {
  #lnd-floating-contact.lnd-pos-bottom-left {
    left: var(--lnd-desktop-side, 25px);
    bottom: var(--lnd-desktop-bottom, 25px);
  }

  #lnd-floating-contact.lnd-pos-bottom-right {
    right: var(--lnd-desktop-side, 25px);
    bottom: var(--lnd-desktop-bottom, 25px);
  }

  #lnd-floating-contact .lnd-contact-inner {
    flex-direction: column;
    gap: 14px;
  }

  #lnd-floating-contact.lnd-pos-bottom-left .lnd-contact-inner {
    align-items: flex-start;
  }

  #lnd-floating-contact.lnd-pos-bottom-right .lnd-contact-inner {
    align-items: flex-end;
  }

  #lnd-floating-contact .lnd-contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: transparent;
    border-radius: 50px;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  }

  /* Định hướng hàng ngang cho icon và nhãn */
  #lnd-floating-contact.lnd-pos-bottom-left .lnd-contact-btn {
    flex-direction: row; /* Icon bên trái -> Nhãn bên phải */
  }

  #lnd-floating-contact.lnd-pos-bottom-right .lnd-contact-btn {
    flex-direction: row-reverse; /* Nhãn bên trái -> Icon bên phải */
  }

  #lnd-floating-contact .lnd-contact-icon {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
  }

  /* Nhãn text hiển thị ngang với button trên desktop */
  #lnd-floating-contact .lnd-contact-label {
    display: inline-flex;
    align-items: center;
    background: #ffffff;
    color: #0f172a;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.2;
    padding: 9px 16px;
    border-radius: 30px;
    border: 1px solid rgba(226, 232, 240, 0.95);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
    white-space: nowrap;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
  }

  /* Đường viền nhấn thương hiệu bên cạnh icon */
  #lnd-floating-contact.lnd-pos-bottom-left .lnd-btn-hotline .lnd-contact-label {
    border-left: 3.5px solid #e53935;
  }
  #lnd-floating-contact.lnd-pos-bottom-right .lnd-btn-hotline .lnd-contact-label {
    border-right: 3.5px solid #e53935;
  }

  #lnd-floating-contact.lnd-pos-bottom-left .lnd-btn-zalo .lnd-contact-label {
    border-left: 3.5px solid #0068ff;
  }
  #lnd-floating-contact.lnd-pos-bottom-right .lnd-btn-zalo .lnd-contact-label {
    border-right: 3.5px solid #0068ff;
  }

  #lnd-floating-contact.lnd-pos-bottom-left .lnd-btn-messenger .lnd-contact-label {
    border-left: 3.5px solid #0084ff;
  }
  #lnd-floating-contact.lnd-pos-bottom-right .lnd-btn-messenger .lnd-contact-label {
    border-right: 3.5px solid #0084ff;
  }

  #lnd-floating-contact.lnd-pos-bottom-left .lnd-btn-contact .lnd-contact-label {
    border-left: 3.5px solid #2e7d32;
  }
  #lnd-floating-contact.lnd-pos-bottom-right .lnd-btn-contact .lnd-contact-label {
    border-right: 3.5px solid #2e7d32;
  }

  /* Ẩn hiện nội dung text theo desktop / mobile */
  #lnd-floating-contact .lnd-label-desktop {
    display: inline-block;
  }

  #lnd-floating-contact .lnd-label-mobile {
    display: none;
  }

  /* Hiệu ứng khi rê chuột (Hover) */
  #lnd-floating-contact.lnd-pos-bottom-left .lnd-contact-btn:hover {
    transform: translateX(4px);
  }

  #lnd-floating-contact.lnd-pos-bottom-right .lnd-contact-btn:hover {
    transform: translateX(-4px);
  }

  #lnd-floating-contact .lnd-contact-btn:hover .lnd-contact-icon {
    transform: scale(1.08);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.28);
  }

  #lnd-floating-contact .lnd-contact-btn:hover .lnd-contact-label {
    color: var(--lnd-btn-theme, #2563eb);
    border-color: var(--lnd-btn-theme, #2563eb);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
  }
}

/* ==========================================================================
   MOBILE STYLES (Màn hình <= 768px)
   Hiển thị dạng Bottom Bar cố định ở đáy màn hình
   ========================================================================== */
@media screen and (max-width: 768px) {
  #lnd-floating-contact.lnd-mobile-bottom-bar {
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    pointer-events: auto;
    background-color: rgba(255, 255, 255, 0.96);
    box-shadow: 0 -3px 18px rgba(0, 0, 0, 0.09);
    border-top: 1px solid rgba(226, 232, 240, 0.9);
    padding: 6px 8px calc(6px + env(safe-area-inset-bottom, 0px)) 8px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  #lnd-floating-contact.lnd-mobile-bottom-bar .lnd-contact-inner {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    gap: 4px;
  }

  #lnd-floating-contact.lnd-mobile-bottom-bar .lnd-contact-btn {
    flex: 1 1 0;
    min-width: 0;
    min-height: 44px; /* Chuẩn Accessibility ngón tay cảm ứng */
    flex-direction: column;
    padding: 4px 2px;
    border-radius: 8px;
  }

  #lnd-floating-contact.lnd-mobile-bottom-bar .lnd-contact-icon {
    width: 36px;
    height: 36px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.16);
  }

  #lnd-floating-contact.lnd-mobile-bottom-bar .lnd-svg-icon {
    width: 19px;
    height: 19px;
  }

  #lnd-floating-contact.lnd-mobile-bottom-bar .lnd-contact-label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    color: #334155;
    margin-top: 3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    text-align: center;
    line-height: 1.2;
    background: transparent;
    box-shadow: none;
    border: none;
    padding: 0;
  }

  #lnd-floating-contact .lnd-label-desktop {
    display: none;
  }

  #lnd-floating-contact .lnd-label-mobile {
    display: block;
  }

  #lnd-floating-contact.lnd-mobile-bottom-bar .lnd-contact-btn:active .lnd-contact-icon {
    transform: scale(0.92);
  }
}

/* ==========================================================================
   SHAKE & PULSE ANIMATION (Hiệu ứng rung chuông & sóng xung kích thu hút)
   ========================================================================== */
@keyframes lnd-wiggle-shake {
  0% {
    transform: rotate(0deg) scale(1);
  }
  3% {
    transform: rotate(-14deg) scale(1.08);
  }
  6% {
    transform: rotate(14deg) scale(1.08);
  }
  9% {
    transform: rotate(-12deg) scale(1.08);
  }
  12% {
    transform: rotate(12deg) scale(1.08);
  }
  15% {
    transform: rotate(-8deg) scale(1.04);
  }
  18% {
    transform: rotate(8deg) scale(1.04);
  }
  21% {
    transform: rotate(0deg) scale(1);
  }
  100% {
    transform: rotate(0deg) scale(1);
  }
}

@keyframes lnd-radar-pulse-hotline {
  0% {
    box-shadow: 0 0 0 0 rgba(229, 57, 53, 0.7), 0 4px 14px rgba(0, 0, 0, 0.2);
  }
  20% {
    box-shadow: 0 0 0 14px rgba(229, 57, 53, 0), 0 4px 14px rgba(0, 0, 0, 0.2);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(229, 57, 53, 0), 0 4px 14px rgba(0, 0, 0, 0.2);
  }
}

@keyframes lnd-radar-pulse-zalo {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 104, 255, 0.7), 0 4px 14px rgba(0, 0, 0, 0.2);
  }
  20% {
    box-shadow: 0 0 0 14px rgba(0, 104, 255, 0), 0 4px 14px rgba(0, 0, 0, 0.2);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(0, 104, 255, 0), 0 4px 14px rgba(0, 0, 0, 0.2);
  }
}

@keyframes lnd-radar-pulse-messenger {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 132, 255, 0.7), 0 4px 14px rgba(0, 0, 0, 0.2);
  }
  20% {
    box-shadow: 0 0 0 14px rgba(0, 132, 255, 0), 0 4px 14px rgba(0, 0, 0, 0.2);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(0, 132, 255, 0), 0 4px 14px rgba(0, 0, 0, 0.2);
  }
}

@keyframes lnd-radar-pulse-contact {
  0% {
    box-shadow: 0 0 0 0 rgba(46, 125, 50, 0.7), 0 4px 14px rgba(0, 0, 0, 0.2);
  }
  20% {
    box-shadow: 0 0 0 14px rgba(46, 125, 50, 0), 0 4px 14px rgba(0, 0, 0, 0.2);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(46, 125, 50, 0), 0 4px 14px rgba(0, 0, 0, 0.2);
  }
}

/* Áp dụng rung chuông + sóng xung kích khi bật shake */
#lnd-floating-contact.lnd-has-shake .lnd-btn-hotline .lnd-contact-icon {
  animation: lnd-wiggle-shake 3.2s cubic-bezier(0.36, 0.07, 0.19, 0.97) infinite, lnd-radar-pulse-hotline 3.2s ease-out infinite;
}

#lnd-floating-contact.lnd-has-shake .lnd-btn-zalo .lnd-contact-icon {
  animation: lnd-wiggle-shake 3.2s cubic-bezier(0.36, 0.07, 0.19, 0.97) infinite 0.5s, lnd-radar-pulse-zalo 3.2s ease-out infinite 0.5s;
}

#lnd-floating-contact.lnd-has-shake .lnd-btn-messenger .lnd-contact-icon {
  animation: lnd-wiggle-shake 3.2s cubic-bezier(0.36, 0.07, 0.19, 0.97) infinite 1.0s, lnd-radar-pulse-messenger 3.2s ease-out infinite 1.0s;
}

#lnd-floating-contact.lnd-has-shake .lnd-btn-contact .lnd-contact-icon {
  animation: lnd-wiggle-shake 3.2s cubic-bezier(0.36, 0.07, 0.19, 0.97) infinite 1.5s, lnd-radar-pulse-contact 3.2s ease-out infinite 1.5s;
}