/* Message Composer and Input Controls */

/* In flow at the foot of the chat column. The wrapper repeats .chat-scroll's
   own box -- full width of the cell, --chat-gutter side padding, and the same
   reserved scrollbar track -- so the input inside it centres on exactly the
   axis .messages-list centres on, at every viewport. */
.composer-dock {
  grid-area: composer;
  min-width: 0;
  padding: 0 var(--chat-gutter);
  scrollbar-gutter: stable;
  overflow: hidden;
}

.composer {
  display: flex;
  gap: var(--s-3);
  padding: var(--s-3);
  /* .composer is itself a flex container, so width:auto would shrink-wrap it to
     its content and leave a narrow box adrift in the middle of the dock. */
  width: 100%;
  max-width: var(--container-max);
  margin: var(--s-2) auto 0;

  /* Solid Pop + Aurora Border */
  background:
    linear-gradient(var(--surface), var(--surface)) padding-box,
    var(--aurora-gradient) border-box;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;

  border-radius: var(--r-xl);
  border: 2px solid transparent;
  /* Wider border for effect */
  /* A permanent aurora halo makes the composer shout over the conversation.
     Lift is enough at rest; the glow becomes the focus affordance below. */
  box-shadow: 0 8px 24px -6px rgba(0, 0, 0, 0.35);
  transition: box-shadow var(--dur-fast) var(--ease-out);
}

.composer:focus-within {
  box-shadow:
    0 8px 24px -6px rgba(0, 0, 0, 0.35),
    var(--aurora-glow);
}

.composer-input {
  flex: 1;
  min-height: var(--input-min-height);
  max-height: 120px;
  resize: none;
  border: none;
  outline: none;
  padding: var(--s-3) var(--s-4);
  border-radius: var(--r-m);
  background: transparent;
  /* KEY FIX: Remove solid opacity to reveal glass */
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--ink);
  transition: background-color var(--dur-fast) var(--ease-out);
}

.composer-input:focus {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
  background: rgba(0, 0, 0, 0.05);
}

.composer-input::placeholder {
  color: var(--ink-soft);
  opacity: 0.6;
}

/* Button base styles */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  height: var(--input-min-height);
  padding: 0 var(--s-4);
  border-radius: var(--r-pill);
  border: none;
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
  box-shadow: var(--shadow-button);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.btn--primary {
  background: var(--coral);
  color: white;
}

.btn--primary:hover:not(:disabled) {
  background: #FF5555;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}

.btn--primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-button);
}

.btn--secondary {
  background: var(--teal);
  color: white;
}

.btn--secondary:hover:not(:disabled) {
  background: #3FBBBB;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(78, 205, 196, 0.3);
}

.btn--secondary:active:not(:disabled) {
  transform: translateY(0);
}

.btn--ghost {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid rgba(58, 74, 90, 0.2);
  box-shadow: none;
}

.btn--ghost:hover:not(:disabled) {
  background: var(--surface-muted);
  color: var(--ink);
  border-color: var(--teal);
}

.btn--icon {
  width: var(--input-min-height);
  padding: 0;
  font-size: var(--text-lg);
}

.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Speech Controls */
.speech-controls {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-3);
  background: var(--surface-muted);
  border-radius: var(--r-m);
  margin-bottom: var(--s-3);
}

.button-group {
  display: flex;
  gap: var(--s-2);
  align-items: center;
}

.speech-controls button {
  background: var(--surface);
  border: 1px solid rgba(78, 205, 196, 0.2);
  border-radius: var(--r-pill);
  padding: var(--s-2) var(--s-4);
  font-size: var(--text-sm);
  color: var(--ink-soft);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
  display: flex;
  align-items: center;
  gap: var(--s-2);
}

.speech-controls button:hover {
  border-color: var(--teal);
  color: var(--teal);
  background: rgba(78, 205, 196, 0.05);
}

.speech-controls button:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.speech-controls button.listening {
  background: var(--coral-tint);
  border-color: var(--coral);
  color: var(--coral);
  animation: pulse 2s infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.8;
    transform: scale(1.02);
  }
}

.speech-controls button.tts-enabled {
  background: var(--teal-tint);
  border-color: var(--teal);
  color: var(--teal);
}

.speech-controls button.tts-disabled {
  background: var(--surface);
  border-color: rgba(58, 74, 90, 0.2);
  color: var(--ink-soft);
  opacity: 0.7;
}

.language-indicator {
  font-size: var(--text-xs);
  color: var(--ink-soft);
  padding: var(--s-1) var(--s-3);
  background: var(--surface);
  border-radius: var(--r-pill);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid rgba(58, 74, 90, 0.1);
}

.language-indicator.clickable {
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
  border-color: rgba(78, 205, 196, 0.3);
  color: var(--teal);
}

.language-indicator.clickable:hover {
  background: var(--teal-tint);
  border-color: var(--teal);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(78, 205, 196, 0.2);
  color: var(--teal);
}

.language-indicator.clickable:active {
  transform: translateY(0);
  background: rgba(78, 205, 196, 0.15);
}

.language-indicator.clickable:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.control-indicators {
  display: flex;
  gap: var(--s-2);
  align-items: center;
}

.mode-indicator,
.formality-indicator {
  font-size: var(--text-xs);
  color: var(--ink-soft);
  padding: var(--s-1) var(--s-3);
  background: var(--surface);
  border-radius: var(--r-pill);
  font-weight: 500;
  border: 1px solid rgba(58, 74, 90, 0.1);
}

.mode-indicator.clickable,
.formality-indicator.clickable {
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
  border-color: rgba(78, 205, 196, 0.3);
  color: var(--teal);
}

.mode-indicator.clickable:hover,
.formality-indicator.clickable:hover {
  background: var(--teal-tint);
  border-color: var(--teal);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(78, 205, 196, 0.2);
  color: var(--teal);
}

.mode-indicator.clickable:active,
.formality-indicator.clickable:active {
  transform: translateY(0);
  background: rgba(78, 205, 196, 0.15);
}

.mode-indicator.clickable:focus-visible,
.formality-indicator.clickable:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

/* Composer actions */
.composer-actions {
  display: flex;
  gap: var(--s-2);
  align-items: flex-end;
}

/* Auto-resize textarea helper */
.composer-input[data-auto-resize="true"] {
  resize: none;
  overflow: hidden;
}

/* Character count */
.char-count {
  position: absolute;
  bottom: var(--s-2);
  right: var(--s-4);
  font-size: var(--text-xs);
  color: var(--ink-soft);
  opacity: 0.6;
  pointer-events: none;
}

.char-count--warning {
  color: var(--yellow);
  opacity: 1;
}

.char-count--error {
  color: var(--status-error);
  opacity: 1;
}

/* Keyboard shortcut hint */
.keyboard-hint {
  font-size: var(--text-xs);
  color: var(--ink-soft);
  opacity: 0.6;
  margin-top: var(--s-2);
  text-align: center;
}

/* Responsive adjustments */
@media (max-width: 640px) {
  .composer {
    padding: var(--s-3);
    gap: var(--s-2);
    border-radius: var(--r-m);
  }

  .btn {
    min-width: auto;
    padding: 0 var(--s-3);
  }

  .btn--icon {
    /* Stay at the 44px touch minimum - this is a primary control. */
    width: var(--tap-min);
  }

  .speech-controls {
    flex-direction: column;
    gap: var(--s-2);
  }

  .language-indicator {
    align-self: stretch;
    text-align: center;
  }
}

@media (max-width: 480px) {
  /* Wrap rather than stack: a vertical column of full-width buttons
     pushes the input itself out of the viewport when the keyboard opens. */
  .composer-actions {
    flex-wrap: wrap;
    gap: var(--s-2);
  }

  .btn {
    flex: 1 1 auto;
    justify-content: center;
  }

  .btn--icon {
    flex: 0 0 auto;
  }

  .keyboard-hint {
    display: none;
    /* Hide on very small screens */
  }
}

/* Accessibility and reduced motion */
@media (prefers-reduced-motion: reduce) {

  .btn,
  .speech-controls button {
    transition: none !important;
    animation: none !important;
  }

  .btn--primary:hover,
  .btn--secondary:hover {
    transform: none !important;
  }

  .speech-controls button.listening {
    animation: none !important;
  }
}