/* Task 6: incoming-call dialog, calling overlay, toasts and the call room.
   Only .call-* classes are defined here. Site custom properties are used
   when task 4 defines them; the fallbacks keep everything usable without. */

.call-ui,
.call-room {
  --call-surface: var(--color-surface, var(--surface, #ffffff));
  --call-text: var(--color-text, var(--text, #1d2330));
  --call-muted: var(--color-muted, var(--muted, #5b6474));
  --call-accent: var(--color-primary, var(--primary, #2563eb));
  --call-danger: var(--color-danger, var(--danger, #c62828));
  --call-radius: var(--radius, 12px);
  --call-shadow: var(--shadow, 0 12px 40px rgba(0, 0, 0, 0.28));
  --call-stage-bg: #0f1218;
}

/* ---- dialogs (native <dialog>, shown with showModal) ----------------- */

.call-dialog {
  width: min(24rem, calc(100vw - 2rem));
  max-width: none;
  padding: 0;
  border: 0;
  border-radius: var(--call-radius);
  background: var(--call-surface);
  color: var(--call-text);
  box-shadow: var(--call-shadow);
}

.call-dialog::backdrop {
  background: rgba(10, 14, 22, 0.55);
}

.call-dialog__body {
  padding: 1.5rem 1.25rem 1.25rem;
  text-align: center;
}

.call-dialog__eyebrow {
  margin: 0 0 0.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--call-accent);
}

.call-dialog__title {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.call-dialog__text {
  margin: 0 0 1rem;
  color: var(--call-muted);
}

.call-dialog__note {
  margin: 0 0 1rem;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  background: rgba(255, 193, 7, 0.18);
  font-size: 0.9rem;
}

.call-dialog__actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.call-dialog__btn {
  flex: 1 1 8rem;
  min-height: 2.75rem;
}

.call-dialog--incoming {
  animation: call-shake 1.5s ease-in-out infinite;
}

.call-dialog__pulse {
  width: 3.5rem;
  height: 3.5rem;
  margin: 0 auto 1rem;
  border-radius: 50%;
  background: var(--call-accent);
  animation: call-pulse 1.4s ease-out infinite;
}

@keyframes call-pulse {
  0% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.55); }
  100% { box-shadow: 0 0 0 1.25rem rgba(37, 99, 235, 0); }
}

@keyframes call-shake {
  0%, 70%, 100% { transform: translateX(0); }
  75% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
  85% { transform: translateX(-3px); }
  90% { transform: translateX(3px); }
}

@media (prefers-reduced-motion: reduce) {
  .call-dialog--incoming,
  .call-dialog__pulse {
    animation: none;
  }
}

/* ---- toasts ---------------------------------------------------------- */

.call-toasts {
  position: fixed;
  z-index: 1000;
  left: 50%;
  bottom: max(1rem, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  width: min(28rem, calc(100vw - 2rem));
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.call-toast {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 0.75rem 0.75rem 1rem;
  border-radius: 10px;
  background: #1f2633;
  color: #ffffff;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
  pointer-events: auto;
}

.call-toast--error {
  background: var(--call-danger);
}

.call-toast__text {
  flex: 1;
  overflow-wrap: anywhere;
}

.call-toast__close {
  flex: none;
  min-width: 2rem;
  min-height: 2rem;
  margin: -0.35rem -0.25rem -0.35rem 0;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: inherit;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}

.call-toast__close:hover,
.call-toast__close:focus-visible {
  background: rgba(255, 255, 255, 0.15);
}

/* ---- call room ------------------------------------------------------- */

.call-room {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 72rem;
  margin: 0 auto;
}

.call-room__header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.25rem 1rem;
}

.call-room__title {
  margin: 0;
  font-size: 1.25rem;
  overflow-wrap: anywhere;
}

.call-room__status {
  margin: 0;
  color: var(--call-muted);
}

.call-room__status[data-kind="connected"] {
  color: #1b873f;
}

.call-room__status[data-kind="warning"],
.call-room__status[data-kind="ended"] {
  color: var(--call-danger);
  font-weight: 600;
}

.call-stage {
  position: relative;
  width: 100%;
  /* Leave room for the header, controls and the site's chrome. */
  height: min(calc(100vw * 9 / 16), calc(100vh - 13rem));
  height: min(calc(100vw * 9 / 16), calc(100dvh - 13rem));
  min-height: 14rem;
  overflow: hidden;
  border-radius: var(--call-radius);
  background: var(--call-stage-bg);
}

.call-video {
  display: block;
  background: #000000;
}

.call-video--remote {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.call-video--local {
  position: absolute;
  right: 0.75rem;
  bottom: 0.75rem;
  width: clamp(6rem, 24%, 14rem);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, 0.7);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  transform: scaleX(-1); /* mirror, like a mirror */
  z-index: 2;
}

.call-room.is-camera-off .call-video--local,
.call-room.is-audio-only .call-video--local {
  opacity: 0.35;
}

.call-room.is-ended .call-video--local {
  display: none;
}

.call-stage__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem;
  color: #e6e9ef;
  text-align: center;
  z-index: 1;
}

.call-stage__placeholder[hidden] {
  display: none;
}

.call-stage__avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 5rem;
  height: 5rem;
  border-radius: 50%;
  background: #2c3444;
  font-size: 2.25rem;
  font-weight: 700;
}

.call-stage__play {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
}

.call-stage__play[hidden] {
  display: none;
}

.call-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  padding-bottom: env(safe-area-inset-bottom);
}

.call-controls__btn {
  min-width: 7.5rem;
  min-height: 2.75rem;
}

.call-controls__btn[hidden] {
  display: none;
}

.call-controls__btn[aria-pressed="true"] {
  outline: 2px solid var(--call-danger);
  outline-offset: 1px;
}

@media (max-width: 600px) {
  .call-stage {
    /* Portrait phones: use most of the screen height. */
    height: calc(100vh - 12rem);
    height: calc(100dvh - 12rem);
    border-radius: 0;
  }

  .call-video--remote {
    object-fit: cover;
  }

  .call-controls {
    position: sticky;
    bottom: 0;
    padding: 0.5rem 0 max(0.5rem, env(safe-area-inset-bottom));
    background: var(--call-surface);
  }

  .call-controls__btn {
    flex: 1 1 0;
    min-width: 0;
  }
}