/* Composer */
.composer {
  flex: none;
  padding: var(--block-space-half) calc(var(--inline-space) + 1vw);

  /* Override Lexxy's default 8lh min-height — CSS attr(rows lh) is unsupported
     on Safari/iOS, so the gem's :where(lexxy-editor) falls back to 8lh.
     Must target the element directly to beat the gem's own declaration. */
  lexxy-editor {
    --lexxy-editor-rows: 1lh;
  }

  .lexxy-editor__content {
    padding: 0;
  }
}

.composer__input-hint,
.composer__context-btn {
  .composer:has(.composer__input:focus-within) & {
    @media (max-width: 120ch) {
      display: none;
    }
  }
}

/* Attachments */
.composer__attachment-btn {
  --hover-filter: brightness(0.85);
  margin-inline-end: -0.5em;

  @media (any-hover: hover) {
    &:where(:not(:active):hover) {
      filter: var(--hover-filter);
      box-shadow: none;
    }
  }
}

/* Pending attachments */
.composer__filelist {
  --row-gap: var(--block-space-half);

  &:not(:empty) {
    padding-block-end: var(--block-space-half);
  }
}

.composer__hd-toggle {
  align-self: center;
  background: transparent;
  border: 1.5px solid var(--color-border-darker);
  border-radius: 2em;
  color: var(--color-text-lighter);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
  padding: 0.3em 0.7em;
  transition: all 150ms ease;

  @media (any-hover: hover) {
    &:hover {
      border-color: var(--color-border-darkest);
    }
  }

  &.composer__hd-toggle--active {
    background: var(--color-text);
    border-color: var(--color-text);
    color: var(--color-text-reversed);
  }
}

.composer__file {
  --aspect-ratio: 5/4;
  --btn-border-radius: 1em;
  --thumbnail-size: 15ch;

  aspect-ratio: var(--aspect-ratio);
  inline-size: var(--thumbnail-size);
}

:is(img, span):is(.composer__file-thumbnail) {
  aspect-ratio: var(--aspect-ratio);
  block-size: auto;
  border-radius: var(--btn-border-radius);
  border: 1px solid var(--color-border-darker);
  inline-size: var(--thumbnail-size);
  object-fit: cover;
}

.composer__file-thumbnail--common {
  background: url("common-file-text.svg") no-repeat center;
  background-size: 55%;
}

.composer__file-caption {
  --icon-size: 1.3em;

  &::after {
    content: "";
    block-size: var(--icon-size);
    inline-size: var(--icon-size);
    background: url("remove-circle.svg") no-repeat center;
    margin-inline: 0.5em -0.5em;
    flex-shrink: 0;
  }

  @media (prefers-color-scheme: dark) {
    &::after {
      filter: invert(100%);
    }
  }
}

/* Rich text */
.composer__rich-text-btn {
  --hover-filter: brightness(0.85);

  display: inline-flex;
  margin-inline-start: -0.5em;

  @media (any-hover: hover) {
    &:where(:not(:active):hover) {
      filter: var(--hover-filter);
      box-shadow: none;
    }
  }

  img {
    inline-size: 1.7em;
  }
}

/* Rich text editor styling for all devices */
.composer--rich-text {
  lexxy-editor.input {
    display: flex;
    flex-direction: column;
  }

  .lexxy-editor__content {
    h1, h2, h3 {
      font-weight: bold;
    }

    h1 { font-size: 1.4rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.1rem; }
  }

  lexxy-toolbar {
    display: flex;
    order: 1;
    position: relative;
    gap: 0.3em;
    border: none;
    background: none;
    padding: 0;
    padding-block-start: 0.15em;
    min-height: 0;
    align-items: center;

    /* Hide buttons not needed in chat composer */
    .lexxy-editor__toolbar-dropdown:has(> [name="highlight"]),
    button[name="upload"],
    button[name="table"],
    button[name="divider"],
    button[name="undo"],
    button[name="redo"],
    .lexxy-editor__toolbar-spacer,
    .lexxy-editor__toolbar-overflow {
      display: none;
    }

    .lexxy-editor__toolbar-button {
      --lexxy-toolbar-button-size: 2rem;

      background: transparent;

      &[aria-pressed="true"],
      [open] > & {
        background-color: color-mix(in oklab, var(--color-text) 15%, transparent);
      }

      @media (any-hover: hover) {
        &:hover:not([aria-pressed="true"]) {
          background-color: color-mix(in oklab, var(--color-text) 8%, transparent);
        }
      }
    }

    /* Link dropdown panel — open upward since composer is at the bottom */
    .lexxy-editor__toolbar-dropdown summary ~ * {
      background-color: var(--color-message-bg);
      border: 1px solid var(--color-border-darker);
      border-radius: 0.75em;
      box-shadow: 0 4px 16px oklch(0% 0 0 / 0.2);
      color: var(--color-text);
      inset-block-end: 100%;
      inset-block-start: auto;
      inset-inline-start: 0;
      margin-block-end: 0.5em;
    }

    lexxy-link-dropdown {
      --lexxy-toolbar-spacing: 1.5ch;

      input[type="url"] {
        background-color: transparent;
        border: 1px solid var(--color-border-darker);
        border-radius: 0.5em;
        color: var(--color-text);
        padding: 0.5em 0.8em;
        font-size: max(16px, 1em);

        &::placeholder {
          color: var(--color-text-lighter);
        }

        &:focus {
          border-color: var(--color-selected-dark);
          outline: none;
        }
      }

      .lexxy-editor__toolbar-button {
        border-radius: 2em;
        font-weight: 600;
        padding: 0.5em 1.1em;
        font-size: 0.875rem;

        &[type="submit"] {
          background-color: var(--color-text);
          color: var(--color-text-reversed);
          border: 1px solid transparent;
        }

        &[type="button"] {
          background-color: var(--color-text-reversed);
          border: 1px solid var(--color-border-darkest);
          color: var(--color-text);
        }

        &:focus-visible {
          outline: 2px solid var(--color-selected-dark);
          outline-offset: 2px;
        }

        @media (any-hover: hover) {
          &:hover {
            opacity: 0.8;
          }
        }
      }
    }
  }
}

.composer--edit lexxy-toolbar {
  border-block-end: 1px solid var(--color-border);
  margin-inline: -0.8em;
  padding-inline: 0.3em;
  padding-block-end: 0.5em;
}

/* Typing indicator */
.typing-indicator {
  inset-block-start: var(--indicator-position, 0.15rem);
  inset-inline-start: var(--block-space);
  opacity: var(--indicator-opacity, 0);
  position: absolute;
  transition: inset-block-start 300ms ease,
              opacity 300ms ease;

  .sidebar & {
    @media (min-width: 120ch) {
      margin-inline-start: 2vw;
    }
  }

  &.typing-indicator--active {
    --indicator-position: 0.15rem;
    --indicator-opacity: 1;
  }
}

.typing-indicator__author {
  line-height: 1;
  padding-inline-start: 1.5em;

  &.spinner {
    display: none;

    .typing-indicator--active & {
      display: block;
    }
  }
}

.composer__input {
  .composer__rich-text-btn,
  label:has(input[type="file"]) {
    cursor: pointer;
  }
}

@media (min-width: 120ch) and (any-hover: hover) and (pointer: fine) {
  .composer__rich-text-btn {
    display: inline-flex;
  }
}