/* Channels page — Slack-style meeting room for Paradise instances.
 * Palette ported from docs/mocks/paradise-channels.html (CEO-Kai + Yu approved).
 * Scoped under .page-channels so it doesn't bleed into shared layout.
 */

.page-channels {
  --ch-bg-page:     #f5efe6;
  --ch-bg-card:     #ede5d6;
  --ch-bg-elevated: #faf6ee;
  --ch-bg-input:    #ffffff;

  --ch-ink:         #2c2620;
  --ch-ink-2:       #5a5043;
  --ch-ink-3:       #8a7f6d;
  --ch-ink-faint:   #b8ad99;

  --ch-navy:        #2e4d6f;
  --ch-navy-deep:   #1f3955;
  --ch-navy-soft:   rgba(46, 77, 111, 0.08);
  --ch-navy-faint:  rgba(46, 77, 111, 0.04);

  --ch-rose:        #b8665c;
  --ch-sage:        #6b8068;

  --ch-border:      rgba(44, 38, 32, 0.08);
  --ch-border-soft: rgba(44, 38, 32, 0.05);

  background: var(--ch-bg-page);
  color: var(--ch-ink);
  height: 100vh;
  overflow: hidden;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
}

.page-channels .page {
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100vh;
}

.page-channels .page__header {
  padding: 20px 40px;
  background: var(--ch-bg-page);
  border-bottom: 1px solid var(--ch-border-soft);
}

.page-channels .brand {
  color: var(--ch-navy);
}

.page-channels .page__nav a {
  color: var(--ch-ink-2);
}
.page-channels .page__nav a:hover { color: var(--ch-navy); }
.page-channels .page__nav a[aria-current="page"] {
  color: var(--ch-navy);
  font-weight: 600;
}

/* === 3-column layout ============================================== */

.ch-app {
  display: grid;
  grid-template-columns: 260px 1fr 300px;
  height: 100%;
  min-height: 0;
}

/* === Sidebar ====================================================== */

.ch-sidebar {
  background: var(--ch-bg-page);
  border-right: 1px solid var(--ch-border-soft);
  overflow-y: auto;
  padding: 24px 0;
  min-height: 0;
}

.ch-section { padding: 0 20px; margin-bottom: 24px; }

.ch-section__label {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 13px;
  color: var(--ch-ink-3);
  margin-bottom: 8px;
  padding-left: 4px;
}

.ch-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 4px;
  cursor: pointer;
  color: var(--ch-ink-2);
  font-size: 16px;
  transition: background 120ms ease, color 120ms ease;
  margin-bottom: 1px;
  user-select: none;
}
.ch-item:hover { background: var(--ch-navy-faint); color: var(--ch-ink); }
.ch-item.is-active {
  background: var(--ch-navy-soft);
  color: var(--ch-navy);
  font-weight: 600;
}
.ch-item.is-unread { color: var(--ch-ink); font-weight: 600; }
.ch-item.is-archived { color: var(--ch-ink-faint); font-style: italic; }

.ch-item__hash { color: var(--ch-ink-3); font-weight: 400; }
.ch-item.is-active .ch-item__hash { color: var(--ch-navy); }
.ch-item__name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.ch-badge {
  background: var(--ch-navy);
  color: var(--ch-bg-elevated);
  font-size: 11px;
  font-weight: 600;
  padding: 1px 7px;
  border-radius: 9px;
  min-width: 20px;
  text-align: center;
}
.ch-badge.is-mention { background: var(--ch-rose); }

/* === Main channel ================================================= */

.ch-main {
  background: var(--ch-bg-page);
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
  min-height: 0;
}

.ch-header {
  padding: 24px 40px 20px;
  border-bottom: 1px solid var(--ch-border-soft);
}
.ch-header__title {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 6px;
}
.ch-header__name {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--ch-navy);
  letter-spacing: -0.005em;
}
.ch-header__status {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 14px;
  color: var(--ch-sage);
}
.ch-header__topic {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--ch-ink-2);
  font-style: italic;
}

.ch-search {
  margin-left: auto;
}
.ch-search input {
  font-family: var(--font-body);
  font-size: 14px;
  background: var(--ch-bg-input);
  color: var(--ch-ink);
  border: 1px solid var(--ch-border);
  border-radius: 4px;
  padding: 6px 12px;
  width: 220px;
  outline: none;
  transition: border-color 150ms;
}
.ch-search input:focus { border-color: var(--ch-navy); }

.ch-messages {
  overflow-y: auto;
  padding: 24px 40px 8px;
  max-width: 920px;
  margin: 0 auto;
  width: 100%;
  min-height: 0;
}

.ch-day-divider {
  text-align: center;
  margin: 24px 0 20px;
  font-family: var(--font-body);
  font-style: italic;
  font-size: 13px;
  color: var(--ch-ink-3);
}
.ch-day-divider::before, .ch-day-divider::after { content: '·'; margin: 0 12px; color: var(--ch-ink-faint); }

.ch-msg {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--ch-border-soft);
}
.ch-msg:last-child { border-bottom: none; }
.ch-msg.is-continuation {
  border-bottom: none;
  padding: 0 0 14px 58px;
  grid-template-columns: 1fr;
  margin-top: -8px;
}
.ch-msg.is-continuation .ch-msg__avatar,
.ch-msg.is-continuation .ch-msg__meta { display: none; }

.ch-msg__avatar { padding-top: 2px; }
.ch-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  font-style: italic;
  user-select: none;
  background: var(--ch-bg-card);
  color: var(--ch-navy);
  border: 1.5px solid var(--ch-navy);
}
.ch-avatar.is-ceo    { color: var(--ch-rose); border-color: var(--ch-rose); }
.ch-avatar.is-cto    { color: var(--ch-navy); border-color: var(--ch-navy); }
.ch-avatar.is-worker { color: var(--ch-sage); border-color: var(--ch-sage); }
.ch-avatar.is-yu     { background: var(--ch-navy); color: var(--ch-bg-elevated); border-color: var(--ch-navy); }
/* TASK_047: when the speaker resolves to a first-class identity we render its
   emoji in the avatar instead of an italic initial — drop the type styling so
   the glyph sits upright and centered. */
.ch-avatar.has-emoji { font-style: normal; font-size: 20px; font-weight: 400; }

.ch-msg__meta {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 4px;
  flex-wrap: wrap;
}
.ch-msg__name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--ch-ink);
}
.ch-msg__tag {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 13px;
  color: var(--ch-ink-3);
}
.ch-msg__tag::before { content: '·  '; }
.ch-msg__instance {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  color: var(--ch-ink-3);
  opacity: 0.65;
  letter-spacing: 0.02em;
}
.ch-msg__instance::before { content: '·  '; opacity: 0.8; }
.ch-msg__time {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--ch-ink-3);
  margin-left: auto;
}

.ch-msg__body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ch-ink);
  word-wrap: break-word;
  overflow-wrap: anywhere;
}
.ch-msg__body p + p { margin-top: 10px; }
.ch-msg__body code {
  font-family: var(--font-mono);
  font-style: normal;
  background: var(--ch-bg-card);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--ch-navy);
  font-size: 14px;
}
.ch-msg__body strong { font-weight: 700; }
.ch-msg__body em { color: var(--ch-ink-2); }
.ch-msg__body a { color: var(--ch-navy); text-decoration: underline; }
.ch-msg__body .mention,
.ch-msg__body mark.mention {
  color: var(--ch-navy);
  font-weight: 600;
  background: var(--ch-navy-soft);
  padding: 0 4px;
  border-radius: 2px;
}
.ch-msg__body mark {
  background: rgba(167, 132, 64, 0.25);
  color: inherit;
  padding: 0 2px;
}

.ch-reactions {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.ch-reaction {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 10px;
  border: 1px solid var(--ch-border);
  border-radius: 14px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--ch-ink-2);
  background: var(--ch-bg-elevated);
  cursor: pointer;
  transition: border-color 120ms, color 120ms, background 120ms;
}
.ch-reaction:hover { border-color: var(--ch-navy); color: var(--ch-navy); }
.ch-reaction.is-mine {
  background: var(--ch-navy-soft);
  border-color: var(--ch-navy);
  color: var(--ch-navy);
}
.ch-reaction--add {
  border-style: dashed;
  color: var(--ch-ink-3);
}

/* === Composer ===================================================== */

.ch-composer {
  padding: 14px 40px 20px;
  background: var(--ch-bg-page);
  border-top: 1px solid var(--ch-border-soft);
}
.ch-composer__inner { max-width: 920px; margin: 0 auto; }
.ch-composer__box {
  background: var(--ch-bg-input);
  border: 1px solid var(--ch-border);
  border-radius: 6px;
  padding: 12px 16px;
  transition: border-color 200ms;
  position: relative;
}
.ch-composer__box:focus-within { border-color: var(--ch-navy); }

.ch-composer__input {
  font-family: var(--font-body);
  font-size: 17px;
  color: var(--ch-ink);
  background: transparent;
  border: none;
  outline: none;
  width: 100%;
  resize: none;
  line-height: 1.6;
  min-height: 40px;
  max-height: 200px;
}
.ch-composer__input::placeholder { color: var(--ch-ink-3); font-style: italic; }

.ch-composer__toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--ch-border-soft);
  gap: 12px;
}
.ch-composer__hint {
  color: var(--ch-ink-3);
  font-family: var(--font-body);
  font-style: italic;
  font-size: 13px;
}
.ch-send {
  background: var(--ch-navy);
  color: var(--ch-bg-elevated);
  border: none;
  padding: 7px 20px;
  border-radius: 4px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 150ms;
}
.ch-send:hover:not(:disabled) { background: var(--ch-navy-deep); }
.ch-send:disabled { opacity: 0.5; cursor: not-allowed; }

/* @mention autocomplete dropdown */
.ch-mention-pop {
  position: absolute;
  bottom: calc(100% + 4px);
  left: 12px;
  right: 12px;
  max-width: 280px;
  background: var(--ch-bg-elevated);
  border: 1px solid var(--ch-border);
  border-radius: 6px;
  box-shadow: var(--shadow-md);
  padding: 4px;
  max-height: 200px;
  overflow-y: auto;
  z-index: 10;
}
.ch-mention-pop[hidden] { display: none; }
.ch-mention-item {
  display: flex;
  gap: 10px;
  padding: 6px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
}
.ch-mention-item:hover,
.ch-mention-item.is-active {
  background: var(--ch-navy-soft);
  color: var(--ch-navy);
}
.ch-mention-item__name { font-weight: 600; }
.ch-mention-item__tag  { color: var(--ch-ink-3); font-style: italic; }

/* === Right pane =================================================== */

.ch-pane {
  background: var(--ch-bg-page);
  border-left: 1px solid var(--ch-border-soft);
  overflow-y: auto;
  padding: 24px 24px;
}
.ch-pane__section { margin-bottom: 28px; }
.ch-pane__title {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 13px;
  color: var(--ch-ink-3);
  margin-bottom: 12px;
}

.ch-task {
  padding: 16px 18px;
  background: var(--ch-bg-card);
  border-radius: 6px;
}
.ch-task__id {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 13px;
  color: var(--ch-navy);
  letter-spacing: 0.02em;
}
.ch-task__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--ch-navy);
  margin: 4px 0 12px;
  line-height: 1.3;
}
.ch-task__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--font-body);
  font-size: 14px;
}
.ch-task__key { color: var(--ch-ink-3); font-style: italic; }
.ch-task__val { color: var(--ch-ink); }

/* === Empty/loading states ========================================== */

.ch-empty {
  text-align: center;
  padding: 64px 24px;
  color: var(--ch-ink-3);
  font-family: var(--font-body);
  font-style: italic;
  font-size: 15px;
}
.ch-loading {
  text-align: center;
  padding: 24px;
  color: var(--ch-ink-3);
  font-style: italic;
  font-size: 14px;
}

/* === Scrollbar ===================================================== */

.page-channels ::-webkit-scrollbar { width: 8px; }
.page-channels ::-webkit-scrollbar-track { background: transparent; }
.page-channels ::-webkit-scrollbar-thumb { background: var(--ch-border); border-radius: 4px; }
.page-channels ::-webkit-scrollbar-thumb:hover { background: var(--ch-ink-3); }

/* === Drawer scrim — hidden by default on every breakpoint.
 *    (Bug observed 2026-05-13: when scoped only inside the mobile media
 *    query, the scrim became display:block on desktop and stole a grid
 *    cell, pushing the pane onto a wrap row.)
 */
.ch-scrim {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.3);
  z-index: 40;
}
.ch-scrim.is-visible { display: block; }

/* === Mobile drawer (iPhone-first, since Yu reads Paradise on phone) === */

.ch-drawer-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--ch-border);
  color: var(--ch-ink-2);
  padding: 6px 12px;
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 14px;
  cursor: pointer;
}

@media (max-width: 1023px) {
  .ch-app { grid-template-columns: 220px 1fr; }
  .ch-pane { display: none; }
}

@media (max-width: 767px) {
  .page-channels .page__header { padding: 14px 18px; }
  .page-channels .page__nav { display: none; }

  .ch-app {
    grid-template-columns: 1fr;
  }
  .ch-drawer-toggle { display: inline-block; }
  .ch-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    z-index: 50;
    background: var(--ch-bg-page);
    box-shadow: var(--shadow-lg);
    transform: translateX(-100%);
    transition: transform 220ms ease;
    padding-top: 60px;
  }
  .ch-sidebar.is-open { transform: translateX(0); }

  .ch-header { padding: 16px 18px 12px; }
  .ch-header__name { font-size: 22px; }
  .ch-messages { padding: 16px 18px; }
  .ch-composer { padding: 12px 18px 16px; }
  .ch-search input { width: 140px; }
}