.chm-inbox {
  --chm-ink: #2a1d24;
  --chm-ink-soft: #5b4a53;
  --chm-paper: #fbf8f5;
  --chm-card: #ffffff;
  --chm-gold: #b8894a;
  --chm-gold-soft: #f3e8d8;
  --chm-rose: #b23a5f;
  --chm-line: rgba(42, 29, 36, 0.12);
  margin: 2rem 0;
  color: var(--chm-ink);
  font-family: inherit;
  line-height: 1.5;
  background: var(--chm-paper);
  border: 1px solid var(--chm-line);
  border-radius: 14px;
  overflow: hidden;
}
.chm-inbox *, .chm-inbox *::before, .chm-inbox *::after { box-sizing: border-box; }
.chm-inbox [hidden] { display: none !important; }

/* Header */
.chm-inbox__head {
  display: flex; gap: 1rem; align-items: center; justify-content: space-between;
  padding: 1.1rem 1.3rem; background: var(--chm-ink); color: #f6efe9;
}
.chm-inbox__head h2 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-weight: 400; font-size: 1.4rem; color: #f6efe9; }
.chm-inbox__head p { margin: 0.15rem 0 0; color: #cdbfc6; font-size: 0.9rem; }
.chm-inbox__alerts-toggle {
  flex: none; background: transparent; color: #e4c48f; border: 1px solid rgba(228, 196, 143, 0.5);
  border-radius: 999px; padding: 0.4rem 0.9rem; font: inherit; font-size: 0.85rem; cursor: pointer;
}
.chm-inbox__alerts-toggle[aria-expanded="true"] { background: #e4c48f; color: var(--chm-ink); }

/* Email alert preferences */
.chm-alerts { padding: 1rem 1.3rem 1.1rem; background: var(--chm-gold-soft); border-bottom: 1px solid var(--chm-line); }
.chm-alerts__lead { margin: 0 0 0.6rem; font-weight: 600; }
.chm-alerts__row { display: flex; gap: 0.5rem; align-items: center; margin-bottom: 0.7rem; }
.chm-alerts__field { display: grid; gap: 0.25rem; max-width: 420px; }
.chm-alerts__field span { font-size: 0.85rem; color: var(--chm-ink-soft); }
.chm-alerts__field input {
  width: 100%; padding: 0.55rem 0.7rem; border: 1px solid var(--chm-line); border-radius: 8px; font: inherit; background: #fff;
}
.chm-alerts__hint { margin: 0.3rem 0 0.6rem; font-size: 0.8rem; color: var(--chm-ink-soft); }
.chm-alerts__status { font-size: 0.85rem; margin-left: 0.5rem; }

.chm-inbox__gate { padding: 1.4rem 1.3rem; }
.chm-inbox__gate p { margin: 0 0 0.4rem; }

/* Layout */
.chm-inbox__layout { display: grid; grid-template-columns: 290px 1fr; min-height: 460px; }
.chm-inbox__list { border-right: 1px solid var(--chm-line); background: var(--chm-card); max-height: 640px; overflow-y: auto; }
.chm-inbox__label {
  margin: 0; padding: 0.9rem 1rem 0.35rem; font-size: 0.8rem; font-weight: 600;
  color: var(--chm-ink-soft); font-family: inherit; letter-spacing: 0;
}
.chm-models { border-top: 1px solid var(--chm-line); }
.chm-inbox__empty { padding: 0.6rem 1rem 1rem; font-size: 0.88rem; color: var(--chm-ink-soft); }

.chm-thread, .chm-model {
  display: flex; gap: 0.7rem; align-items: center; width: 100%; text-align: left;
  padding: 0.7rem 1rem; border: 0; border-left: 3px solid transparent; background: transparent;
  cursor: pointer; color: inherit; font: inherit;
}
.chm-thread:hover, .chm-model:hover { background: var(--chm-paper); }
.chm-thread.is-active, .chm-model.is-active { background: var(--chm-gold-soft); border-left-color: var(--chm-gold); }
.chm-thread img, .chm-model img { width: 42px; height: 42px; border-radius: 50%; object-fit: cover; flex: none; }
.chm-thread__text { min-width: 0; flex: 1; }
.chm-thread__text strong { display: block; font-size: 0.95rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chm-thread__text span { display: block; font-size: 0.82rem; color: var(--chm-ink-soft); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chm-thread.is-unread .chm-thread__text strong { font-weight: 700; }
.chm-thread.is-unread .chm-thread__text span { color: var(--chm-ink); }
.chm-thread__meta { display: flex; flex-direction: column; align-items: flex-end; gap: 0.25rem; flex: none; }
.chm-thread__meta time { font-size: 0.75rem; color: var(--chm-ink-soft); }
.chm-badge {
  min-width: 1.35rem; height: 1.35rem; padding: 0 0.35rem; border-radius: 999px;
  background: var(--chm-rose); color: #fff; font-size: 0.72rem; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
}

/* Conversation pane */
.chm-inbox__thread { padding: 1.1rem 1.3rem 1.2rem; display: flex; flex-direction: column; min-width: 0; }
.chm-inbox__intro { margin: auto; text-align: center; color: var(--chm-ink-soft); max-width: 30ch; }
.chm-inbox__with { margin: 0 0 0.8rem; padding-bottom: 0.7rem; border-bottom: 1px solid var(--chm-line); font-size: 0.9rem; color: var(--chm-ink-soft); }
.chm-inbox__to { margin: 0 0 0.2rem; font-family: Georgia, "Times New Roman", serif; font-size: 1.25rem; }
.chm-inbox__terms { margin: 0 0 0.8rem; font-size: 0.88rem; color: var(--chm-ink-soft); max-width: 60ch; }
.chm-inbox__back {
  align-self: flex-start; margin-bottom: 0.6rem; background: none; border: 0; padding: 0;
  color: var(--chm-ink-soft); font: inherit; font-size: 0.88rem; cursor: pointer; text-decoration: underline;
}

.chm-inbox__stream {
  display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 0.9rem;
  max-height: 460px; overflow-y: auto; padding-right: 0.25rem; overscroll-behavior: contain;
}
.chm-bubble { max-width: 78%; padding: 0.65rem 0.9rem; border-radius: 14px 14px 14px 4px; background: var(--chm-card); border: 1px solid var(--chm-line); }
.chm-bubble p { margin: 0; overflow-wrap: anywhere; }
.chm-bubble small { display: block; color: var(--chm-ink-soft); font-size: 0.75rem; margin-bottom: 0.2rem; }
.chm-bubble.is-mine { align-self: flex-end; background: var(--chm-ink); color: #f6efe9; border-color: var(--chm-ink); border-radius: 14px 14px 4px 14px; }
.chm-bubble.is-mine small { color: #cdbfc6; }
.chm-bubble.is-locked { background: var(--chm-gold-soft); border: 1px dashed var(--chm-gold); }
.chm-bubble__actions { display: flex; flex-wrap: wrap; gap: 0.4rem 0.8rem; align-items: center; margin-top: 0.5rem; }
.chm-link { color: var(--chm-ink); font-size: 0.85rem; }

.chm-inbox__compose textarea, .chm-inbox__reply textarea {
  width: 100%; min-height: 96px; border-radius: 10px; border: 1px solid var(--chm-line);
  padding: 0.7rem 0.8rem; font: inherit; background: #fff; color: var(--chm-ink); resize: vertical;
}
.chm-inbox__compose textarea:disabled, .chm-inbox__reply textarea:disabled { background: #f2eeea; }
.chm-inbox__actions { display: flex; justify-content: flex-end; align-items: center; gap: 0.8rem; }
.chm-count { font-size: 0.78rem; color: var(--chm-ink-soft); }

.chm-btn {
  display: inline-block; margin-top: 0.6rem; background: var(--chm-gold); color: var(--chm-ink);
  border: 0; border-radius: 999px; padding: 0.6rem 1.15rem; font: inherit; font-weight: 700;
  cursor: pointer; text-decoration: none; line-height: 1.2;
}
.chm-btn:hover { background: #a67a3f; color: var(--chm-ink); }
.chm-btn:disabled { opacity: 0.55; cursor: progress; }
.chm-btn--small { margin-top: 0; padding: 0.4rem 0.85rem; font-size: 0.85rem; }
.chm-inbox__status { min-height: 1.2rem; margin: 0.5rem 0 0; font-size: 0.86rem; }
.chm-inbox__status .chm-btn { margin-left: 0.4rem; }

.chm-inbox button:focus-visible, .chm-inbox a:focus-visible, .chm-inbox textarea:focus-visible, .chm-inbox input:focus-visible {
  outline: 2px solid var(--chm-gold); outline-offset: 2px;
}

@media (min-width: 761px) {
  .chm-inbox__back { display: none !important; }
}
@media (max-width: 760px) {
  .chm-inbox { border-radius: 10px; }
  .chm-inbox__head { flex-wrap: wrap; }
  .chm-inbox__layout { grid-template-columns: 1fr; min-height: 0; }
  .chm-inbox__list { border-right: 0; max-height: none; }
  .chm-inbox.is-reading .chm-inbox__list { display: none; }
  .chm-inbox:not(.is-reading) .chm-inbox__thread { display: none; }
  .chm-inbox__stream { max-height: 60vh; }
  .chm-bubble { max-width: 90%; }
}
@media (prefers-reduced-motion: reduce) {
  .chm-inbox * { scroll-behavior: auto !important; }
}