.c-whatsapp-widget {
  --whatsapp-green: #25d366;
  --whatsapp-green-dark: #128c48;
  --whatsapp-panel-width: 19.375rem;
  --whatsapp-transition-duration: 220ms;
  position: fixed;
  right: max(1.75rem, env(safe-area-inset-right));
  bottom: max(1.75rem, env(safe-area-inset-bottom));
  z-index: 900;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.c-whatsapp-widget [hidden] {
  display: none;
}

.c-whatsapp-widget__trigger {
  appearance: none;
  align-items: center;
  background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-green-dark) 100%);
  border: 0;
  border-radius: 50%;
  box-shadow: 0 0.375rem 1.5rem rgba(37, 211, 102, 0.55);
  color: #fff;
  cursor: pointer;
  display: flex;
  height: 3.875rem;
  justify-content: center;
  padding: 0;
  position: relative;
  transition: transform 200ms ease, box-shadow 200ms ease;
  width: 3.875rem;
}

.c-whatsapp-widget__trigger:hover {
  box-shadow: 0 0.625rem 2rem rgba(37, 211, 102, 0.6);
  transform: scale(1.08);
}

.c-whatsapp-widget__trigger:focus-visible,
.c-whatsapp-widget__close:focus-visible,
.c-whatsapp-widget__cta:focus-visible {
  outline: 0.1875rem solid #005fcc;
  outline-offset: 0.1875rem;
}

.c-whatsapp-widget__trigger img,
.c-whatsapp-widget__cta img {
  display: block;
  flex-shrink: 0;
  object-fit: contain;
}

.c-whatsapp-widget__tooltip {
  background: #1a2b4b;
  border-radius: 0.5rem;
  bottom: 1rem;
  box-shadow: 0 0.25rem 0.875rem rgba(0, 0, 0, 0.25);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  opacity: 0;
  padding: 0.4375rem 0.8125rem;
  pointer-events: none;
  position: absolute;
  right: 4.5rem;
  transition: opacity 200ms ease;
  white-space: nowrap;
}

.c-whatsapp-widget__tooltip::after {
  border: 0.3125rem solid transparent;
  border-left-color: #1a2b4b;
  content: "";
  position: absolute;
  right: -0.625rem;
  top: 50%;
  transform: translateY(-50%);
}

.c-whatsapp-widget__trigger:hover + .c-whatsapp-widget__tooltip,
.c-whatsapp-widget__trigger:focus-visible + .c-whatsapp-widget__tooltip {
  opacity: 1;
}

.c-whatsapp-widget.is-panel-open .c-whatsapp-widget__tooltip {
  opacity: 0;
}

.c-whatsapp-widget__panel {
  background: #fff;
  border: 0.0625rem solid #e2e8f0;
  border-radius: 1rem;
  bottom: 4.625rem;
  box-shadow: 0 1rem 3.5rem rgba(0, 48, 135, 0.18);
  max-height: calc(100dvh - 7.5rem);
  opacity: 0;
  overflow-x: hidden;
  overflow-y: auto;
  position: absolute;
  right: 0;
  transform: scale(0.85) translateY(0.75rem);
  transform-origin: bottom right;
  transition:
    transform var(--whatsapp-transition-duration) cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity 180ms ease;
  width: min(var(--whatsapp-panel-width), calc(100vw - 2rem));
}

.c-whatsapp-widget__panel.is-open {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.c-whatsapp-widget__header {
  align-items: center;
  background: linear-gradient(135deg, #f58220 0%, #d96b12 100%);
  display: flex;
  gap: 0.6875rem;
  padding: 1.125rem 1.25rem 0.9375rem;
}

.c-whatsapp-widget__avatar {
  align-items: center;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  color: #fff;
  display: flex;
  flex: 0 0 2.5rem;
  height: 2.5rem;
  justify-content: center;
}

.c-whatsapp-widget__avatar svg {
  height: 1.375rem;
  width: 1.375rem;
}

.c-whatsapp-widget__heading {
  min-width: 0;
}

.c-whatsapp-widget__title,
.c-whatsapp-widget__subtitle,
.c-whatsapp-widget__lead,
.c-whatsapp-widget__qr {
  margin: 0;
}

.c-whatsapp-widget__title {
  color: #fff;
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.3;
}

.c-whatsapp-widget__subtitle {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.71875rem;
  line-height: 1.4;
}

.c-whatsapp-widget__close {
  appearance: none;
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 0.25rem;
  color: rgba(255, 255, 255, 0.8);
  cursor: pointer;
  display: flex;
  flex: 0 0 1.5rem;
  font-size: 1.25rem;
  height: 1.5rem;
  justify-content: center;
  line-height: 1;
  margin-left: auto;
  padding: 0;
  transition: background-color 150ms ease, color 150ms ease;
}

.c-whatsapp-widget__close:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.c-whatsapp-widget__body {
  padding: 1.125rem;
}

.c-whatsapp-widget__lead {
  color: #374151;
  font-size: 0.8125rem;
  line-height: 1.55;
  margin-bottom: 1rem;
}

.c-whatsapp-widget__qr {
  align-items: center;
  background: #f8fafc;
  border: 0.0625rem solid #e2e8f0;
  border-radius: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-bottom: 0.875rem;
  padding: 0.875rem;
}

.c-whatsapp-widget__qr img {
  border-radius: 0.25rem;
  display: block;
  height: 8rem;
  width: 8rem;
}

.c-whatsapp-widget__qr figcaption {
  color: #64748b;
  font-size: 0.6875rem;
  line-height: 1.4;
  text-align: center;
}

.c-whatsapp-widget__cta {
  align-items: center;
  background: linear-gradient(135deg, var(--whatsapp-green) 0%, #1da851 100%);
  border-radius: 0.625rem;
  box-shadow: 0 0.25rem 0.875rem rgba(37, 211, 102, 0.35);
  color: #fff;
  display: flex;
  font-size: 0.875rem;
  font-weight: 700;
  gap: 0.5625rem;
  justify-content: center;
  padding: 0.8125rem 1.125rem;
  text-decoration: none;
  transition: transform 150ms ease, box-shadow 150ms ease;
  width: 100%;
}

.c-whatsapp-widget__cta:hover {
  box-shadow: 0 0.5rem 1.375rem rgba(37, 211, 102, 0.42);
  color: #fff;
  text-decoration: none;
  transform: translateY(-0.125rem);
}

@media (max-width: 37.499rem) {
  .c-whatsapp-widget {
    bottom: max(1rem, env(safe-area-inset-bottom));
    right: max(1rem, env(safe-area-inset-right));
  }
}

@media (prefers-reduced-motion: reduce) {
  .c-whatsapp-widget__trigger,
  .c-whatsapp-widget__tooltip,
  .c-whatsapp-widget__panel,
  .c-whatsapp-widget__cta {
    transition: none;
  }
}