/* KingTamil Chat — PWA install banner + modal */

.ktc-pwa-banner {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: calc(12px + env(safe-area-inset-bottom));
  background: #ffffff;
  color: #1a1f2e;
  border-radius: 14px;
  box-shadow: 0 8px 28px rgba(15, 23, 42, .25);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  font-size: 14px;
  z-index: 9999;
  transform: translateY(20px);
  opacity: 0;
  transition: opacity .25s ease, transform .25s ease;
  pointer-events: none;
}
.ktc-pwa-banner.is-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.ktc-pwa-banner .ktc-pwa-icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, #1a73e8, #6d28d9);
  display: grid; place-items: center;
  font-size: 20px;
  flex-shrink: 0;
}
.ktc-pwa-banner .ktc-pwa-text {
  flex: 1;
  min-width: 0;
  display: grid;
  line-height: 1.3;
}
.ktc-pwa-banner .ktc-pwa-text strong {
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ktc-pwa-banner .ktc-pwa-text span {
  font-size: 12px;
  color: #5b6573;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ktc-pwa-banner .ktc-pwa-install {
  background: #1a73e8;
  color: #fff;
  border: 0;
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  flex-shrink: 0;
}
.ktc-pwa-banner .ktc-pwa-install:hover { background: #0f5fc7; }
.ktc-pwa-banner .ktc-pwa-close {
  background: transparent;
  border: 0;
  cursor: pointer;
  width: 30px; height: 30px;
  border-radius: 50%;
  color: #8a93a3;
  font-size: 16px;
  flex-shrink: 0;
  display: grid; place-items: center;
}
.ktc-pwa-banner .ktc-pwa-close:hover { background: rgba(0,0,0,.05); color: #1a1f2e; }

/* Dark theme support */
.theme-dark .ktc-pwa-banner {
  background: #1d2632;
  color: #e6ebf3;
  box-shadow: 0 8px 28px rgba(0, 0, 0, .5);
}
.theme-dark .ktc-pwa-banner .ktc-pwa-text span { color: #b1bccd; }
.theme-dark .ktc-pwa-banner .ktc-pwa-close { color: #76808f; }
.theme-dark .ktc-pwa-banner .ktc-pwa-close:hover { background: rgba(255,255,255,.06); color: #e6ebf3; }

/* Modal (iOS instructions / Android fallback) */
.ktc-pwa-modal-overlay {
  position: fixed; inset: 0;
  background: rgba(15, 23, 42, .5);
  display: grid;
  place-items: center;
  padding: 20px;
  z-index: 10000;
  opacity: 0;
  transition: opacity .25s ease;
}
.ktc-pwa-modal-overlay.is-visible { opacity: 1; }
.ktc-pwa-modal {
  background: #ffffff;
  color: #1a1f2e;
  border-radius: 16px;
  padding: 24px;
  max-width: 420px;
  width: 100%;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.ktc-pwa-modal h3 {
  margin: 0 0 12px;
  font-size: 18px;
}
.ktc-pwa-modal p { margin: 0 0 12px; line-height: 1.5; font-size: 14px; }
.ktc-pwa-modal ol { padding-left: 22px; margin: 0 0 12px; }
.ktc-pwa-modal ol li { margin: 6px 0; line-height: 1.5; font-size: 14px; }
.ktc-pwa-modal-close {
  position: absolute;
  top: 10px; right: 10px;
  background: transparent;
  border: 0; cursor: pointer;
  width: 32px; height: 32px;
  border-radius: 50%;
  font-size: 18px;
  color: #8a93a3;
}
.ktc-pwa-modal-close:hover { background: rgba(0,0,0,.05); color: #1a1f2e; }

.theme-dark .ktc-pwa-modal {
  background: #1d2632;
  color: #e6ebf3;
}
.theme-dark .ktc-pwa-modal-close { color: #76808f; }
.theme-dark .ktc-pwa-modal-close:hover { background: rgba(255,255,255,.06); color: #e6ebf3; }