.channel-editor-overlay {
  position: fixed;
  top: var(--editor-top, 0px);
  left: 0;
  right: 0;
  height: var(--editor-height, 100dvh);
  z-index: 90;
  display: grid;
  background: var(--scrim);
}

.channel-editor {
  width: min(100%, 640px);
  height: 100%;
  min-height: 0;
  margin-inline: auto;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  overflow: hidden;
  color: var(--text-primary);
  background: var(--background);
}

.channel-editor__header {
  min-height: calc(56px + env(safe-area-inset-top));
  padding: env(safe-area-inset-top) 6px 0;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
}

.channel-editor__header h2 {
  font-size: 16px;
  line-height: 24px;
  font-weight: 600;
  text-align: center;
}

.channel-editor__close {
  width: 44px;
  height: 44px;
  padding: 0;
  font-size: 28px;
  color: var(--text-primary);
}

.channel-editor__body {
  min-height: 0;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
}

.channel-editor__context {
  padding-left: 12px;
  border-left: 2px solid var(--accent);
  color: var(--text-secondary);
}

.channel-editor__context strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text-primary);
  font-size: 13px;
}

.channel-editor__context p {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  font-size: 13px;
  line-height: 18px;
  overflow-wrap: anywhere;
}

.channel-editor__context.is-expanded p { display: block; }

.channel-editor__context-toggle,
.channel-editor__clear {
  min-height: 44px;
  padding: 6px 0;
  color: var(--accent);
  font-size: 13px;
}

.channel-editor__input {
  flex: 1 0 auto;
  overflow-y: hidden;
  width: 100%;
  min-height: 160px;
  padding: 0;
  resize: none;
  border: 0;
  outline: 0;
  color: var(--text-primary);
  background: transparent;
  font: inherit;
  font-size: 16px;
  line-height: 24px;
  caret-color: var(--accent);
}

.channel-editor__input::placeholder { color: var(--text-secondary); }

.channel-editor__type {
  display: grid;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 13px;
}

.channel-editor__type .select {
  color: var(--text-primary);
  background: var(--surface);
  border-color: var(--border-control);
}

.channel-editor__input:focus-visible {
  border-radius: 4px;
  outline: 2px solid var(--focus-ring);
  outline-offset: 4px;
}

.channel-editor__attachments { display: grid; gap: 8px; }
.channel-editor__author { display: flex; align-items: center; gap: 12px; font-size: .875rem; }
.channel-editor__author .avatar { width: 40px; height: 40px; min-width: 40px; min-height: 40px; }
.channel-editor__context-toggle[hidden] { display: none; }
.channel-editor__attach[hidden], .channel-editor__clear[hidden] { display: none; }

.channel-editor__attachment {
  min-height: 44px;
  padding: 6px 8px 6px 12px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 44px;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  background: var(--surface);
  font-size: 13px;
}

.channel-editor__attachment span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.channel-editor__attachment button { min-width: 44px; min-height: 44px; color: var(--text-secondary); }

.channel-editor__error {
  min-height: 18px;
  color: var(--danger);
  font-size: 13px;
  line-height: 18px;
}

.channel-editor__footer {
  min-height: calc(68px + env(safe-area-inset-bottom));
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--border-subtle);
  background: var(--background);
}

.channel-editor__attach,
.channel-editor__submit {
  min-height: 44px;
  padding: 0 14px;
  border-radius: 12px;
}

.channel-editor__attach {
  color: var(--accent);
  border: 1px solid var(--border-control);
  background: var(--surface);
}

.channel-editor__submit {
  color: var(--on-accent);
  background: var(--accent);
}

.channel-editor__counter {
  min-width: 0;
  color: var(--text-secondary);
  font-size: 12px;
  text-align: right;
}

.channel-editor__counter.is-near-limit { color: var(--warning); }

@media (min-width: 680px) {
  .channel-editor-overlay { place-items: center; padding: 24px; }
  .channel-editor {
    height: min(760px, 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    box-shadow: var(--shadow);
  }
}

@media (max-width: 370px) {
  .channel-editor__footer { grid-template-columns: auto minmax(0, 1fr); }
  .channel-editor__counter { grid-column: 1 / -1; grid-row: 1; }
  .channel-editor__attach { grid-column: 1; }
  .channel-editor__submit { grid-column: 2; }
}

@media (prefers-reduced-motion: reduce) {
  .channel-editor-overlay, .channel-editor { animation: none; transition: none; }
}