/* DTD Community Chat — Twitter-style feed */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.chat-section {
  display: grid;
  gap: 1.1rem;
}

.chat-hero {
  position: relative;
  border-radius: 22px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(45, 212, 191, 0.14), transparent 42%),
    linear-gradient(225deg, rgba(37, 211, 102, 0.1), transparent 40%),
    var(--panel);
  padding: 1.15rem 1.2rem 1.25rem;
  overflow: hidden;
  box-shadow: var(--panel-shadow);
}

.chat-hero h2 {
  margin: 0.2rem 0 0.4rem;
  font-size: clamp(1.45rem, 3vw, 1.9rem);
}

.chat-hero-sub {
  margin: 0;
  max-width: 42rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

.chat-rails {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.95rem;
}

.chat-rail-btn {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--input-bg);
  color: var(--text);
}

.chat-rail-btn.is-tg {
  border-color: rgba(56, 189, 248, 0.35);
  color: #0ea5e9;
}

.chat-rail-btn.is-wa {
  border-color: rgba(37, 211, 102, 0.4);
  color: #16a34a;
}

.chat-rail-hint {
  font-size: 0.75rem;
  color: var(--muted);
  align-self: center;
}

.chat-layout {
  display: grid;
  gap: 0.9rem;
}

@media (min-width: 960px) {
  .chat-layout {
    grid-template-columns: minmax(0, 1.5fr) minmax(240px, 0.75fr);
    align-items: start;
  }
}

.chat-main,
.chat-side {
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--panel-shadow);
}

.chat-main {
  padding: 0.85rem 0.9rem 1rem;
  display: grid;
  gap: 0.75rem;
}

.chat-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  justify-content: space-between;
}

.chat-who {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-dark);
}

[data-theme="dark"] .chat-who {
  color: var(--primary);
}

.chat-auth-gate {
  display: grid;
  gap: 0.55rem;
  padding: 0.85rem 0.9rem;
  border-radius: 14px;
  border: 1px dashed var(--line);
  background: var(--input-bg);
}

.chat-auth-gate p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.4;
}

.chat-auth-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.chat-claim-box {
  padding: 0.75rem 0.85rem;
  border-radius: 12px;
  border: 1px solid rgba(45, 212, 191, 0.35);
  background: var(--soft);
  font-size: 0.88rem;
}

.chat-claim-box p {
  margin: 0 0 0.45rem;
}

.chat-code code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.chat-composer {
  display: grid;
  gap: 0.45rem;
}

.chat-composer textarea {
  width: 100%;
  min-height: 5.5rem;
  resize: vertical;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--input-bg);
  color: var(--text);
  padding: 0.75rem 0.85rem;
  font: inherit;
  line-height: 1.4;
}

.chat-composer-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.45rem;
}

.chat-char-count {
  font-size: 0.75rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.chat-feed {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.chat-empty {
  padding: 1.4rem 0.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.92rem;
}

.chat-loading {
  letter-spacing: 0.02em;
}

@media (max-width: 959px) {
  .chat-side {
    order: 2;
  }

  .chat-main {
    order: 1;
  }

  .chat-composer textarea {
    min-height: 4.5rem;
  }
}

.chat-post {
  display: grid;
  gap: 0.55rem;
  padding: 0.95rem 0.35rem 0.85rem;
  border-bottom: 1px solid var(--line);
}

.chat-post-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.65rem;
  align-items: center;
}

.chat-avatar {
  width: 2.45rem;
  height: 2.45rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--text);
  background:
    linear-gradient(145deg, rgba(45, 212, 191, 0.35), transparent 60%),
    var(--soft);
  border: 1px solid rgba(45, 212, 191, 0.3);
}

.chat-post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.55rem;
  min-width: 0;
}

.chat-handle {
  font-weight: 800;
  text-decoration: none;
  color: var(--text);
}

.chat-handle:hover {
  color: var(--primary-dark);
}

[data-theme="dark"] .chat-handle:hover {
  color: var(--primary);
}

.chat-name {
  color: var(--muted);
  font-size: 0.82rem;
}

.chat-post-meta time {
  color: var(--muted);
  font-size: 0.75rem;
  margin-left: auto;
}

.chat-post-body {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}

.chat-post-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.chat-action {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  text-decoration: none;
  cursor: pointer;
}

.chat-action:hover:not(:disabled) {
  background: var(--input-bg);
  color: var(--text);
}

.chat-action.is-on {
  color: #e11d48;
}

.chat-action:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.chat-side {
  padding: 1rem 1.05rem;
  display: grid;
  gap: 0.85rem;
}

.chat-side h3 {
  margin: 0;
  font-size: 0.95rem;
}

.chat-side p,
.chat-side li {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.4;
}

.chat-side ol {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.35rem;
}

.chat-side-card {
  padding: 0.75rem 0.8rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--input-bg);
  display: grid;
  gap: 0.35rem;
}

#chatStatus {
  min-height: 1.2em;
  font-size: 0.82rem;
}