/* ============================================================
   Home view — hero, summary cards, AI Brain chat card.
   Uses tokens from index.css; no new palette.
   ============================================================ */

.home-hero {
  margin: 8px 0 16px;
}
.home-greeting {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--accent);
  margin: 0;
}

.home-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 720px) {
  .home-grid {
    grid-template-columns: 1fr 1fr;
  }
  .brain-card {
    grid-column: 1 / -1;
  }
}

.home-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  transition: border-color .15s;
}
.home-card:hover { border-color: var(--border-strong); }

.home-card-head {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 12px;
}
.home-card-head svg { flex: 0 0 auto; }

.home-card-body { min-height: 56px; }

.home-stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.home-stat-big {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 500;
  color: var(--accent);
  line-height: 1;
}
.home-stat-tail {
  font-size: 13px;
  color: var(--text-dim);
}
.home-stat-sub {
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-dim);
}

.home-mode-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.home-mode-pill {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  font-size: 12px;
  color: var(--text);
}
.home-mode-pill em {
  font-style: normal;
  color: var(--text-dim);
  font-size: 11px;
}

/* Skeleton — quiet shimmer while cards load. */
.home-skel {
  height: 38px;
  background: linear-gradient(90deg, var(--bg-1), var(--bg-2), var(--bg-1));
  background-size: 200% 100%;
  border-radius: var(--radius-sm);
  animation: home-skel-shimmer 1.2s linear infinite;
}
@keyframes home-skel-shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* ============================================================
   AI Brain card
   ============================================================ */
.brain-card {
  display: flex;
  flex-direction: column;
  padding-bottom: 14px;
}
.brain-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.brain-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.brain-resync {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  cursor: pointer;
  transition: border-color .15s, color .15s, background .15s;
}
.brain-resync:hover:not(:disabled) {
  border-color: var(--gold);
  color: var(--accent);
}
.brain-resync:disabled { opacity: .55; cursor: not-allowed; }
.brain-resync-icon { display: inline-flex; }

/* Chat log */
.brain-log {
  max-height: 360px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 4px 2px 12px;
}
.brain-empty {
  color: var(--text-muted);
  font-size: 13px;
  font-style: italic;
  margin: 0;
  padding: 12px 0;
}

.brain-turn {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.brain-turn.user { align-items: flex-end; }
.brain-turn.assistant { align-items: flex-start; }

.brain-bubble {
  display: inline-block;
  max-width: 92%;
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.55;
  border: 1px solid var(--border);
  background: var(--bg-1);
  color: var(--text);
  white-space: pre-wrap;
  word-wrap: break-word;
}
.brain-turn.user .brain-bubble {
  background: var(--tint-accent-strong);
  border-color: var(--tint-accent-strong);
  color: var(--text);
}
.brain-turn.assistant .brain-bubble {
  background: var(--bg-0);
}

/* Loading dots */
.brain-bubble.loading {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
}
.brain-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--text-dim);
  opacity: .35;
  animation: brain-dot 1.2s ease-in-out infinite;
}
.brain-dot:nth-child(2) { animation-delay: .2s; }
.brain-dot:nth-child(3) { animation-delay: .4s; }
@keyframes brain-dot {
  0%, 80%, 100% { opacity: .35; transform: translateY(0); }
  40%           { opacity: 1;   transform: translateY(-2px); }
}

/* Citation chips */
.brain-cites {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-left: 4px;
}
.brain-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  font-size: 11px;
  color: var(--text);
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.brain-chip:hover {
  border-color: var(--gold);
  background: var(--tint-gold);
}
.brain-chip-type {
  color: var(--text-dim);
  font-size: 10px;
}

/* Input row */
.brain-form {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  margin-top: 6px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.brain-form textarea {
  flex: 1;
  resize: none;
  min-height: 40px;
  max-height: 160px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-0);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.4;
  outline: none;
  transition: border-color .15s;
}
.brain-form textarea:focus { border-color: var(--gold); }
.brain-form textarea:disabled { opacity: .6; }

.brain-ask {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--on-accent);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background .15s, opacity .15s;
}
.brain-ask:hover:not(:disabled) { background: var(--sea-2); }
[data-theme="night"] .brain-ask:hover:not(:disabled) { background: #2A4951; }
.brain-ask:disabled { opacity: .5; cursor: not-allowed; }

/* Toast */
.brain-toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--nav-h) + 16px);
  transform: translateX(-50%);
  padding: 10px 16px;
  background: var(--accent);
  color: var(--on-accent);
  border-radius: var(--radius);
  font-size: 13px;
  box-shadow: var(--shadow-lg);
  z-index: 60;
  max-width: calc(100vw - 32px);
  text-align: center;
}
.brain-toast.hidden { display: none; }
.brain-toast.error {
  background: var(--danger);
  color: var(--snowy);
}