/* ============================================================================
   App shell: rail, sidebar + chat list, home, wallpapers, chat-info drawer.

   Desktop:  [rail][sidebar][chat ................][drawer]
   Tablet:   [rail][sidebar][chat .....] drawer overlays
   Phone:    one pane at a time; the rail becomes a bottom tab bar and the
             chat opens full-screen over the list (.chat-open).
   ========================================================================== */

.app-container {
  position: relative;
  z-index: var(--z-app);
  display: grid;
  grid-template-columns: var(--rail-w) var(--sidebar-w) minmax(0, 1fr);
  /* One row exactly the height of the screen. Without minmax(0, …) the row
     grows to fit its tallest child -- the docked chat-info panel -- pushing
     the message box and the rail's bottom buttons off-screen. */
  grid-template-rows: minmax(0, 1fr);
  gap: var(--shell-gap);
  height: 100vh;
  height: 100dvh;
  padding: var(--shell-gap);
  padding-left: 0;
}

/* ---------------------------------------------------------------------------
   Rail
   ------------------------------------------------------------------------- */
.nav-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 6px 0 4px;
  min-height: 0;
  overflow-y: auto;
  scrollbar-width: none;
}
.nav-rail::-webkit-scrollbar {
  display: none;
}
.rail-brand {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 4px;
}
.rail-btn {
  position: relative;
  display: grid;
  place-items: center;
  flex: none;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  color: var(--text-2);
  transition: background-color var(--dur-2) var(--ease), color var(--dur-2) var(--ease), transform var(--dur-1) var(--ease), border-radius var(--dur-2) var(--ease);
}
.rail-btn:hover {
  background: var(--surface);
  color: var(--text);
}
.rail-btn:active {
  transform: scale(0.94);
}
.rail-btn.active {
  background: var(--surface);
  color: var(--primary-text);
  box-shadow: var(--shadow-1);
}
.rail-btn.active::before {
  content: "";
  position: absolute;
  left: -12px;
  top: 12px;
  bottom: 12px;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: var(--primary);
}
.rail-new {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: 0 8px 18px -8px color-mix(in oklab, var(--primary) 80%, transparent);
}
.rail-new:hover {
  background: var(--primary-strong);
  color: var(--on-primary);
  border-radius: 14px;
}
.rail-divider {
  width: 28px;
  height: 1px;
  margin: 4px 0;
  background: var(--divider);
}
.rail-spacer {
  flex: 1;
}
.rail-label {
  display: none;
}
.rail-badge {
  position: absolute;
  top: 5px;
  right: 3px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: var(--r-full);
  background: var(--primary);
  color: var(--on-primary);
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 18px;
  text-align: center;
  box-shadow: 0 0 0 2px var(--bg);
}
.rail-avatar.avatar {
  width: 34px;
  height: 34px;
  font-size: 0.85rem;
}
.rail-profile-btn.active .rail-avatar {
  box-shadow: 0 0 0 2px var(--primary);
}
.folder-img {
  border-radius: 6px;
  object-fit: cover;
}

/* ---------------------------------------------------------------------------
   Panels
   ------------------------------------------------------------------------- */
.sidebar,
.chat-main {
  min-height: 0;
  border-radius: var(--r-xl);
  background: var(--surface);
  box-shadow: var(--shadow-panel), var(--shadow-1);
  border: 1px solid var(--border);
  overflow: hidden;
}

/* ---------------------------------------------------------------------------
   Sidebar
   ------------------------------------------------------------------------- */
.sidebar {
  display: flex;
  flex-direction: column;
}
.sidebar-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 20px 10px;
}
.sidebar-title {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.035em;
}
.me-pill {
  margin-left: auto;
  max-width: 50%;
  padding: 6px 12px;
  border-radius: var(--r-full);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.me-pill::before {
  content: "@";
  opacity: 0.6;
}
.me-pill:hover {
  color: var(--text);
  border-color: var(--border-strong);
}
.sidebar-search {
  position: relative;
  margin: 6px 16px 8px;
}
.sidebar-search input {
  min-height: 44px;
  padding: 10px 14px 10px 42px;
  border-radius: var(--r-full);
  background: var(--surface-2);
  font-size: 0.95rem;
}
.sidebar-search input::-webkit-search-cancel-button {
  -webkit-appearance: none;
}
.search-icon {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-3);
  pointer-events: none;
}

.view-chips {
  display: none; /* phones and tablets only; the rail does this on desktop */
  gap: 6px;
  padding: 2px 16px 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.view-chips::-webkit-scrollbar {
  display: none;
}
.view-chip {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 0 14px;
  border-radius: var(--r-full);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  white-space: nowrap;
}
.view-chip[aria-selected="true"] {
  background: var(--text);
  border-color: var(--text);
  color: var(--surface);
}
.view-chip .chip-count {
  min-width: 18px;
  padding: 0 5px;
  border-radius: var(--r-full);
  background: var(--primary);
  color: var(--on-primary);
  font-size: 0.68rem;
  line-height: 18px;
  text-align: center;
}

/* People row: your direct chats as faces, online first. */
.friends-row {
  display: flex;
  gap: 4px;
  padding: 4px 14px 10px;
  overflow-x: auto;
  scrollbar-width: none;
}
.friends-row::-webkit-scrollbar {
  display: none;
}
.friend {
  flex: none;
  display: grid;
  justify-items: center;
  gap: 5px;
  width: 64px;
  padding: 4px 2px;
  border-radius: var(--r-md);
  color: var(--text-2);
  font-size: 0.72rem;
  font-weight: 600;
  transition: background-color var(--dur-1) var(--ease);
}
.friend:hover {
  background: var(--surface-hover);
  color: var(--text);
}
.friend .avatar {
  width: 50px;
  height: 50px;
  box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--border-strong);
}
.friend.online .avatar {
  overflow: visible;
  box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--online);
}
.friend.online .avatar::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--online);
  border: 2.5px solid var(--surface);
}
.friend.online .avatar img {
  border-radius: 50%;
}
.friend-name {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
@media (max-width: 768px) {
  .friend .avatar {
    box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--border-strong);
  }
  .friend.online .avatar {
    box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--online);
  }
}

.conversations-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0 10px 12px;
  overscroll-behavior: contain;
}
.sidebar-section,
.search-heading {
  padding: 14px 12px 6px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

.conv-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: var(--row-h);
  padding: 8px 12px;
  border-radius: var(--r-lg);
  cursor: pointer;
  transition: background-color var(--dur-1) var(--ease), transform var(--dur-1) var(--ease);
  -webkit-user-select: none;
  user-select: none;
  animation: rowIn var(--dur-3) var(--ease-out) both;
}
@keyframes rowIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
}
.conv-item:hover {
  background: var(--surface-hover);
}
.conv-item:active,
.conv-item.pressed {
  transform: scale(0.985);
}
.conv-item.active {
  background: var(--primary-soft);
}
.conv-item.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  border-radius: 3px;
  background: var(--primary);
}
.conv-item .avatar {
  width: 48px;
  height: 48px;
}
:root[data-density="compact"] .conv-item .avatar {
  width: 40px;
  height: 40px;
  font-size: 0.95rem;
}
.conv-item.online .avatar {
  overflow: visible;
}
.conv-item.online .avatar::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--online);
  border: 2.5px solid var(--surface);
}
.conv-item.online .avatar img {
  border-radius: 50%;
}
.conv-info {
  flex: 1;
  min-width: 0;
  display: grid;
  gap: 2px;
}
.conv-row-top,
.conv-row-bottom {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}
.conv-title {
  flex: 1;
  min-width: 0;
  font-weight: 650;
  font-size: 0.97rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.conv-time {
  flex: none;
  font-size: 0.74rem;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}
.conv-preview {
  flex: 1;
  min-width: 0;
  font-size: 0.87rem;
  color: var(--text-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.conv-preview-tag {
  color: var(--danger);
  font-weight: 600;
}
.conv-preview-icon {
  margin-right: 1px;
}
.conv-item.has-unread .conv-title {
  font-weight: 750;
}
.conv-item.has-unread .conv-preview {
  color: var(--text);
  font-weight: 550;
}
.conv-item.has-unread .conv-time {
  color: var(--primary-text);
  font-weight: 700;
}
.conv-lock,
.conv-pin {
  flex: none;
  display: inline-grid;
  place-items: center;
  color: var(--text-3);
}
.conv-badge {
  flex: none;
  min-width: 22px;
  height: 22px;
  padding: 0 7px;
  border-radius: var(--r-full);
  background: var(--primary);
  color: var(--on-primary);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 22px;
  text-align: center;
  animation: badgePop var(--dur-3) var(--ease-spring);
}
@keyframes badgePop {
  from {
    transform: scale(0.4);
  }
}

.list-empty {
  padding: 14px 12px;
  color: var(--text-3);
  font-size: var(--fs-sm);
  white-space: pre-line;
}
.empty-list {
  display: grid;
  justify-items: center;
  gap: 6px;
  margin: 40px 12px;
  padding: 28px 20px;
  text-align: center;
  border-radius: var(--r-xl);
  background: var(--surface-2);
  border: 1px dashed var(--border-strong);
}
.empty-emoji {
  font-size: 2.2rem;
  animation: emptyBob 3s ease-in-out infinite;
}
@keyframes emptyBob {
  50% {
    transform: translateY(-5px) rotate(-4deg);
  }
}
.empty-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}
.empty-sub {
  color: var(--text-2);
  font-size: var(--fs-sm);
  max-width: 24ch;
}
.empty-action {
  margin-top: 10px;
}

/* Search + starred rows. */
.search-section {
  margin-top: 6px;
  border-top: 1px solid var(--divider);
}
.star-item {
  display: grid;
  gap: 3px;
  margin: 2px 0;
  padding: 10px 12px;
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background-color var(--dur-1) var(--ease);
}
.star-item:hover {
  background: var(--surface-hover);
}
.star-item-top {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-3);
}
.star-item-top span:first-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.star-item-text {
  font-size: 0.9rem;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------------------------------------------------------------------------
   Chat main + wallpaper
   ------------------------------------------------------------------------- */
.chat-main {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface-2);
  isolation: isolate;
}
/* The wallpaper is a mask tinted with the theme's ink, so the same doodle
   reads as pencil on paper in light mode and chalk on slate in dark. */
.chat-main::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: var(--wp-alpha);
}
.app-container[data-wallpaper="doodle"] .chat-main:not([data-wp])::before,
.chat-main[data-wp="doodle"]::before {
  background-color: var(--wp-ink);
  -webkit-mask: url("../doodle.svg") repeat;
  mask: url("../doodle.svg") repeat;
  -webkit-mask-size: 300px;
  mask-size: 300px;
}
.app-container[data-wallpaper="dots"] .chat-main:not([data-wp])::before,
.chat-main[data-wp="dots"]::before {
  background-image: radial-gradient(color-mix(in oklab, var(--wp-ink) 16%, transparent) 1.3px, transparent 1.4px);
  background-size: 18px 18px;
}
.app-container[data-wallpaper="plain"] .chat-main:not([data-wp])::before,
.chat-main[data-wp="plain"]::before {
  background: none;
}
/* Illustrated scenes. A veil in the theme's own colour keeps everything
   drawn straight on the wallpaper (dates, stickers)
   legible: pastel in light mode, deep in dark. */
.app-container[data-wallpaper="city"] .chat-main:not([data-wp])::before,
.chat-main[data-wp="city"]::before {
  --scene: url("../wallpapers/night-city.svg");
}
.app-container[data-wallpaper="northern"] .chat-main:not([data-wp])::before,
.chat-main[data-wp="northern"]::before {
  --scene: url("../wallpapers/northern-lights.svg");
}
.app-container[data-wallpaper="galaxy"] .chat-main:not([data-wp])::before,
.chat-main[data-wp="galaxy"]::before {
  --scene: url("../wallpapers/galaxy.svg");
}
.app-container:is([data-wallpaper="city"], [data-wallpaper="northern"], [data-wallpaper="galaxy"]) .chat-main:not([data-wp])::before,
.chat-main:is([data-wp="city"], [data-wp="northern"], [data-wp="galaxy"])::before {
  background:
    linear-gradient(color-mix(in oklab, var(--surface-2) 60%, transparent), color-mix(in oklab, var(--surface-2) 60%, transparent)),
    var(--scene) center / cover no-repeat;
  opacity: 1;
}
:root[data-theme="dark"] .app-container:is([data-wallpaper="city"], [data-wallpaper="northern"], [data-wallpaper="galaxy"]) .chat-main:not([data-wp])::before,
:root[data-theme="dark"] .chat-main:is([data-wp="city"], [data-wp="northern"], [data-wp="galaxy"])::before {
  background:
    linear-gradient(color-mix(in oklab, var(--bg) 22%, transparent), color-mix(in oklab, var(--bg) 38%, transparent)),
    var(--scene) center / cover no-repeat;
}

/* A chat tinted by its theme: a whisper of the chat's colour in the floor. */
.chat-main {
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--primary) 4%, transparent), transparent 40%),
    var(--surface-2);
}
/* Uploaded photo wallpaper: settings.js publishes it as --custom-wp on the
   container; the chat pane shows it under a theme-coloured veil so bubbles
   stay legible on any photo. */
.app-container[data-wallpaper="custom"] .chat-main:not([data-wp])::before {
  background-image: linear-gradient(color-mix(in oklab, var(--surface-2) 58%, transparent), color-mix(in oklab, var(--surface-2) 70%, transparent)), var(--custom-wp, none);
  background-size: cover;
  background-position: center;
  opacity: 1;
}
/* "Ambient": panels go translucent so the ambient effect shows through. */
.app-container[data-wallpaper="ambient"] .sidebar,
.app-container[data-wallpaper="ambient"] .chat-main:not([data-wp]),
.chat-main[data-wp="ambient"] {
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(22px) saturate(1.2);
  backdrop-filter: blur(22px) saturate(1.2);
}

/* ---------------------------------------------------------------------------
   Home (no chat open) — src/home.js
   ------------------------------------------------------------------------- */
.home {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: clamp(24px, 4vw, 48px);
}
.home-inner {
  max-width: 820px;
  margin: 0 auto;
  animation: rowIn var(--dur-3) var(--ease-out) both;
}
.home-greeting {
  font-size: clamp(1.8rem, 1.3rem + 1.6vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}
.home-date {
  margin-top: 6px;
  color: var(--text-2);
}
.home-actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 26px 0 18px;
}
.home-action {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-1);
  text-align: left;
  font-weight: 650;
  transition: transform var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), border-color var(--dur-2);
}
.home-action:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  border-color: var(--border-strong);
}
.home-action small {
  display: block;
  margin-top: 2px;
  color: var(--text-3);
  font-weight: 500;
  font-size: 0.78rem;
}
.home-ico {
  width: 40px;
  height: 40px;
  border-radius: 12px;
}
.home-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 12px;
}
.home-col {
  display: grid;
  gap: 12px;
  align-content: start;
}
.home-card {
  padding: 18px;
  border-radius: var(--r-xl);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-1);
}
.home-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}
.home-card h3 {
  font-size: 1rem;
  letter-spacing: -0.01em;
}
.home-card-sub {
  color: var(--text-3);
  font-size: var(--fs-sm);
}
.home-row {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 8px;
  margin: 0 -8px;
  width: calc(100% + 16px);
  border-radius: var(--r-md);
  text-align: left;
  transition: background-color var(--dur-1) var(--ease);
}
.home-row:hover {
  background: var(--surface-hover);
}
.home-row .avatar {
  width: 38px;
  height: 38px;
  font-size: 0.9rem;
}
.home-row-main {
  flex: 1;
  min-width: 0;
  display: grid;
}
.home-row-title {
  font-weight: 650;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.home-row-sub {
  color: var(--text-2);
  font-size: var(--fs-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.home-empty {
  display: grid;
  justify-items: start;
  gap: 4px;
  padding: 10px 0 4px;
  color: var(--text-2);
  font-size: var(--fs-sm);
}
.home-empty strong {
  color: var(--text);
  font-size: 0.95rem;
}
.status-list {
  list-style: none;
  display: grid;
  gap: 10px;
}
.status-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-sm);
}
.status-dot {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-3);
}
.status-dot.ok {
  background: var(--success);
  box-shadow: 0 0 0 4px var(--success-soft);
}
.status-dot.warn {
  background: var(--warning);
  box-shadow: 0 0 0 4px var(--warning-soft);
}
.status-list .text-link {
  margin-left: auto;
  font-size: var(--fs-sm);
}

/* ---------------------------------------------------------------------------
   Chat info drawer
   ------------------------------------------------------------------------- */
.chat-info {
  position: fixed;
  top: var(--shell-gap);
  right: var(--shell-gap);
  bottom: var(--shell-gap);
  z-index: var(--z-drawer);
  display: flex;
  flex-direction: column;
  width: min(var(--drawer-w), calc(100vw - 2 * var(--shell-gap)));
  border-radius: var(--r-xl);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-3);
  transform: translateX(calc(100% + 24px));
  visibility: hidden;
  transition: transform var(--dur-3) var(--ease-out), visibility 0s linear var(--dur-3);
}
.chat-info.open {
  transform: none;
  visibility: visible;
  transition: transform var(--dur-3) var(--ease-out), visibility 0s;
}
.chat-info-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 14px 6px;
}
.chat-info-header h3 {
  font-size: 1.05rem;
}
.chat-info-body {
  flex: 1;
  overflow-y: auto;
  padding: 4px 18px 24px;
}
.info-hero {
  display: grid;
  justify-items: center;
  gap: 6px;
  padding: 8px 0 18px;
  text-align: center;
  border-bottom: 1px solid var(--divider);
}
.info-avatar.avatar {
  width: 92px;
  height: 92px;
  font-size: 2rem;
  margin-bottom: 6px;
  box-shadow: var(--shadow-2);
}
.info-hero h2 {
  font-size: 1.35rem;
  word-break: break-word;
}
.info-hero-actions {
  margin-top: 10px;
  justify-content: center;
}
.info-section {
  padding: 16px 0;
  border-bottom: 1px solid var(--divider);
}
.info-section:last-of-type {
  border-bottom: 0;
}
.settings-label {
  display: block;
  margin-bottom: 10px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}
.settings-label em {
  font-style: normal;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  color: var(--text-3);
  opacity: 0.8;
}
.settings-label em::before {
  content: "· ";
}
.info-row-inline {
  display: flex;
  gap: 8px;
}
.info-row-inline input {
  min-height: 42px;
  padding: 8px 12px;
  font-size: 0.95rem;
}
.info-row-inline .mini-btn {
  min-height: 42px;
}
.info-bio-view {
  color: var(--text);
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}
.info-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.info-note {
  margin-top: 10px;
  color: var(--text-2);
  font-size: var(--fs-sm);
  line-height: 1.5;
}
.info-note:empty {
  display: none;
}
.info-encryption {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 16px;
  padding: 12px;
  border-radius: var(--r-md);
  background: var(--surface-2);
  color: var(--text-2);
  font-size: var(--fs-sm);
  text-align: center;
}

/* Member rows (drawer, members modal, forward list, folders, pinned). */
.members-list {
  display: grid;
  gap: 2px;
  margin-bottom: 10px;
  max-height: 50vh;
  overflow-y: auto;
}
.member-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 52px;
  padding: 6px 8px;
  border-radius: var(--r-md);
}
.member-row[role="button"] {
  cursor: pointer;
}
.member-row:hover {
  background: var(--surface-hover);
}
.member-id {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 600;
}
.member-id > span:not(.member-role) {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.member-row .avatar {
  width: 36px !important;
  height: 36px !important;
  font-size: 0.85rem !important;
}
.member-role {
  flex: none;
  padding: 2px 8px;
  border-radius: var(--r-full);
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--surface-3);
  color: var(--text-2);
}
.member-role-owner {
  background: color-mix(in oklab, var(--brand-sun) 22%, transparent);
  color: color-mix(in oklab, #9a6400 80%, var(--text));
}
.member-role-admin {
  background: var(--primary-soft);
  color: var(--primary-text);
}
.member-actions {
  display: flex;
  gap: 4px;
}
.member-action,
.member-remove {
  min-height: 32px;
  padding: 0 10px;
  border-radius: var(--r-full);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-2);
  background: var(--surface-2);
}
.member-action:hover {
  color: var(--text);
  background: var(--surface-3);
}
.member-remove {
  color: var(--danger);
  background: var(--danger-soft);
}
.member-remove:hover {
  background: var(--danger);
  color: #fff;
}
.danger-btn {
  width: 100%;
  justify-content: center;
}
.settings-footer .danger-btn {
  width: auto;
}

/* ---------------------------------------------------------------------------
   Focus mode: just the conversation.
   ------------------------------------------------------------------------- */
.focus-only {
  display: none;
}
body.focus-mode .app-container {
  grid-template-columns: minmax(0, 1fr);
  padding-left: var(--shell-gap);
}
body.focus-mode .nav-rail,
body.focus-mode .sidebar {
  display: none;
}
body.focus-mode .focus-only {
  display: inline-grid;
}
body.focus-mode #focus-btn {
  display: none;
}
body.focus-mode.panel-out .sidebar {
  display: flex;
  position: fixed;
  top: var(--shell-gap);
  left: var(--shell-gap);
  bottom: var(--shell-gap);
  width: var(--sidebar-w);
  z-index: var(--z-drawer);
  box-shadow: var(--shadow-3);
  animation: slideInLeft var(--dur-3) var(--ease-out);
}
@keyframes slideInLeft {
  from {
    transform: translateX(-24px);
    opacity: 0;
  }
}
body.focus-mode #aurora,
body.focus-mode #fx-canvas {
  display: none;
}

/* ---------------------------------------------------------------------------
   Responsive
   ------------------------------------------------------------------------- */
@media (max-width: 1180px) {
  :root {
    --sidebar-w: 312px;
  }
}

/* Tablet: filter chips join the rail. */
@media (max-width: 1024px) {
  .view-chips {
    display: flex;
  }
  .nav-rail [data-view="direct"],
  .nav-rail [data-view="group"],
  .nav-rail .rail-folder {
    display: none;
  }
  .home-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .home-grid {
    grid-template-columns: 1fr;
  }
}

/* Phone: one pane at a time. */
@media (max-width: 768px) {
  :root {
    --shell-gap: 0px;
  }
  .app-container {
    display: block;
    padding: 0;
    height: 100dvh;
    overflow: hidden;
  }
  .sidebar {
    height: calc(100dvh - 64px - env(safe-area-inset-bottom));
    border-radius: 0;
    border: 0;
    box-shadow: none;
    background: var(--bg);
  }
  .sidebar-header {
    padding: calc(14px + env(safe-area-inset-top)) 16px 6px;
  }
  .sidebar-search {
    margin: 6px 16px 8px;
  }
  .sidebar-search input {
    background: var(--surface);
  }
  .view-chip {
    background: var(--surface);
  }
  .conversations-list {
    padding: 0 6px calc(12px + env(safe-area-inset-bottom));
  }
  .conv-item {
    border-radius: var(--r-md);
  }

  /* Bottom tab bar. */
  .nav-rail {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 20;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
    gap: 0;
    height: calc(64px + env(safe-area-inset-bottom));
    padding: 0 6px env(safe-area-inset-bottom);
    background: var(--surface-glass);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    backdrop-filter: blur(20px) saturate(1.4);
    border-top: 1px solid var(--divider);
    overflow: visible;
  }
  .rail-brand,
  .rail-divider,
  .rail-spacer {
    display: none;
  }
  .rail-btn {
    width: auto;
    min-width: 58px;
    height: 54px;
    border-radius: 14px;
    grid-template-rows: 26px auto;
    gap: 2px;
    align-content: center;
  }
  .rail-btn:hover,
  .rail-btn.active {
    background: transparent;
    box-shadow: none;
  }
  .rail-btn.active::before {
    display: none;
  }
  .rail-label {
    display: block;
    font-size: 0.68rem;
    font-weight: 600;
  }
  .rail-new {
    order: 3;
    width: 52px;
    min-width: 52px;
    height: 52px;
    border-radius: 18px;
    grid-template-rows: none;
    margin-top: -14px;
    background: var(--primary);
    color: var(--on-primary);
    box-shadow: 0 10px 22px -8px color-mix(in oklab, var(--primary) 85%, transparent), 0 0 0 4px var(--bg);
  }
  .rail-new:hover {
    background: var(--primary-strong);
  }
  .nav-rail [data-view="all"] { order: 1; }
  .nav-rail [data-view="starred"] { order: 2; }
  .rail-profile-btn { order: 4; }
  #settings-btn { order: 5; }
  .rail-badge {
    top: 2px;
    right: 8px;
  }
  .rail-avatar.avatar {
    width: 26px;
    height: 26px;
    font-size: 0.7rem;
  }

  .chat-main {
    position: fixed;
    inset: 0;
    z-index: 25;
    border-radius: 0;
    border: 0;
    box-shadow: none;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--dur-3) var(--ease-out), visibility 0s linear var(--dur-3);
  }
  .app-container.chat-open .chat-main {
    transform: none;
    visibility: visible;
    transition: transform var(--dur-3) var(--ease-out), visibility 0s;
  }
  .app-container.chat-open .nav-rail {
    display: none;
  }
  #no-chat-selected {
    display: none;
  }

  .chat-info {
    top: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    border-radius: 0;
    border: 0;
  }
  .chat-info-header {
    padding-top: calc(10px + env(safe-area-inset-top));
  }

  body.focus-mode .app-container {
    padding: 0;
  }
}

@media (min-width: 769px) {
  .back-btn {
    display: none;
  }
}

/* Very large screens: keep the drawer beside the chat instead of on top. */
@media (min-width: 1440px) {
  .app-container.info-open {
    grid-template-columns: var(--rail-w) var(--sidebar-w) minmax(0, 1fr) var(--drawer-w);
  }
  .app-container.info-open .chat-info {
    position: static;
    width: auto;
    min-height: 0; /* scroll inside the panel, don't stretch the page */
    transform: none;
    box-shadow: var(--shadow-panel), var(--shadow-1);
  }
}