/* ==========================================================================
   WhatsApp chat widget — module stylesheet (whatsapp-chat-widget skill)
   Namespaced .wa-widget__* — nothing here styles anything outside the widget.

   THEMING: the trigger is always WhatsApp green. Everything in the panel reads
   from the --wa-* custom properties below. On install, map them to the site's
   own tokens in the site's token block, e.g.

     .wa-widget {
       --wa-panel-header-bg: var(--c-primary);
       --wa-cta-bg:          var(--c-primary);
       --wa-bubble-fg:       var(--c-text);
       --wa-radius:          var(--radius-lg);
       --wa-font:            var(--font-body);
     }

   The fallbacks below are neutral placeholders only, never the shipped look.
   ========================================================================== */

.wa-widget {
  /* Fixed brand colours (WhatsApp) — trigger only */
  --wa-green: #25D366;
  --wa-green-dark: #1EBE5D;
  --wa-green-fg: #ffffff;

  /* Site-token hooks — map these to the site's tokens */
  --wa-panel-bg: #ffffff;
  --wa-panel-header-bg: #1f2937;
  --wa-panel-header-fg: #ffffff;
  --wa-close-bg: rgba(0, 0, 0, .25);
  --wa-close-fg: #ffffff;
  --wa-body-bg: #f3f4f6;
  --wa-bubble-bg: #ffffff;
  --wa-bubble-fg: #1f2937;
  --wa-cta-bg: #1f2937;
  --wa-cta-fg: #ffffff;
  --wa-focus: #2563eb;
  --wa-radius: 18px;
  --wa-bubble-radius: 22px;
  --wa-shadow: 0 14px 40px rgba(0, 0, 0, .18);
  --wa-bubble-shadow: 0 2px 8px rgba(0, 0, 0, .10);
  --wa-font: inherit;

  /* Geometry */
  --wa-trigger-size: 60px;
  --wa-offset: 20px;
  --wa-gap: 14px;
  --wa-panel-width: 380px;
  --wa-lift: 0px;          /* set by JS while an "avoid" element is visible */
  --wa-z: 900;             /* below modals/cookie notice, above page content */
  --wa-duration: 220ms;

  position: fixed;
  left: calc(var(--wa-offset) + env(safe-area-inset-left, 0px));
  bottom: calc(var(--wa-offset) + env(safe-area-inset-bottom, 0px) + var(--wa-lift));
  z-index: var(--wa-z);
  font-family: var(--wa-font);
  line-height: 1.4;
  transition: bottom var(--wa-duration) ease;
}

.wa-widget *,
.wa-widget *::before,
.wa-widget *::after { box-sizing: border-box; }

.wa-widget__icon { display: block; width: 100%; height: 100%; }

/* ---- Trigger --------------------------------------------------------- */
.wa-widget__trigger {
  display: grid;
  place-items: center;
  width: var(--wa-trigger-size);
  height: var(--wa-trigger-size);       /* ≥ 44px touch target */
  padding: 14px;
  border: 0;
  border-radius: 50%;
  background: var(--wa-green);
  color: var(--wa-green-fg);
  box-shadow: 0 6px 18px rgba(0, 0, 0, .22);
  cursor: pointer;
  transition: background-color 150ms ease, transform 150ms ease;
}
.wa-widget__trigger[hidden] { display: none; }
.wa-widget__trigger:hover,
.wa-widget__trigger:active,
.wa-widget__trigger[aria-expanded="true"] { background: var(--wa-green-dark); }
.wa-widget__trigger:hover { transform: translateY(-2px); }

/* ---- Panel ----------------------------------------------------------- */
.wa-widget__panel {
  position: absolute;
  left: 0;
  bottom: calc(var(--wa-trigger-size) + var(--wa-gap));
  width: min(var(--wa-panel-width),
             calc(100vw - 2 * var(--wa-offset)
                  - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px)));
  max-height: calc(100vh - var(--wa-trigger-size) - var(--wa-gap) - 2 * var(--wa-offset)
                   - env(safe-area-inset-bottom, 0px) - var(--wa-lift));
  max-height: calc(100dvh - var(--wa-trigger-size) - var(--wa-gap) - 2 * var(--wa-offset)
                   - env(safe-area-inset-bottom, 0px) - var(--wa-lift));
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--wa-radius);
  background: var(--wa-panel-bg);
  box-shadow: var(--wa-shadow);
  transform-origin: bottom left;
  opacity: 0;
  transform: translateY(12px) scale(.98);
  transition: opacity var(--wa-duration) ease, transform var(--wa-duration) ease;
}
.wa-widget__panel[hidden] { display: none; }
.wa-widget.is-open .wa-widget__panel { opacity: 1; transform: none; }
.wa-widget__panel:focus { outline: none; }

.wa-widget__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 16px 18px 24px;
  background: var(--wa-panel-header-bg);
  color: var(--wa-panel-header-fg);
}
.wa-widget__title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: inherit;
}
.wa-widget__close {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 12px;
  border: 0;
  border-radius: 50%;
  background: var(--wa-close-bg);
  color: var(--wa-close-fg);
  cursor: pointer;
}
.wa-widget__close:hover { filter: brightness(1.15); }

.wa-widget__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  padding: 22px 20px 18px 24px;
  overflow-y: auto;
  background: var(--wa-body-bg);
}
.wa-widget__bubble {
  position: relative;
  margin: 0;
  padding: 14px 20px;
  max-width: 100%;
  border-radius: var(--wa-bubble-radius);
  background: var(--wa-bubble-bg);
  color: var(--wa-bubble-fg);
  box-shadow: var(--wa-bubble-shadow);
  font-size: .95rem;
}
.wa-widget__bubble::before {               /* speech tail, left side */
  content: "";
  position: absolute;
  left: -7px;
  top: 50%;
  width: 14px;
  height: 14px;
  background: inherit;
  transform: translateY(-50%) rotate(45deg);
  border-radius: 2px;
}

.wa-widget__footer {
  padding: 4px 20px 20px 20px;
  background: var(--wa-body-bg);
}
.wa-widget__cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 10px 26px 10px 14px;
  border-radius: 999px;
  background: var(--wa-cta-bg);
  color: var(--wa-cta-fg);
  font-weight: 700;
  text-decoration: none;
  transition: filter 150ms ease, transform 150ms ease;
}
.wa-widget__cta .wa-widget__icon { width: 30px; height: 30px; flex: 0 0 auto; }
.wa-widget__cta:hover { filter: brightness(1.12); transform: translateY(-1px); }

/* ---- Focus ----------------------------------------------------------- */
.wa-widget__trigger:focus-visible,
.wa-widget__close:focus-visible,
.wa-widget__cta:focus-visible {
  outline: 3px solid var(--wa-focus);
  outline-offset: 3px;
}

/* ---- Small screens --------------------------------------------------- */
@media (max-width: 480px) {
  .wa-widget { --wa-offset: 14px; --wa-trigger-size: 56px; }
  .wa-widget__header { padding-left: 18px; }
  .wa-widget__body { padding-left: 18px; }
}

/* ---- Reduced motion -------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .wa-widget,
  .wa-widget__panel,
  .wa-widget__trigger,
  .wa-widget__cta { transition: none; }
  .wa-widget__panel { transform: none; }
  .wa-widget__trigger:hover,
  .wa-widget__cta:hover { transform: none; }
}

/* ---- Print ----------------------------------------------------------- */
@media print { .wa-widget { display: none; } }