/* ---------- top tabs (Synthetic Data | Segmentation) ---------- */
.tabs {
  max-width: 1080px;
  margin: 18px auto 0;
  padding: 0 24px;
  display: flex;
  gap: 6px;
}
.tab {
  background: transparent;
  border: 1px solid transparent;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 10px 10px 0 0;
}
.tab:hover:not(.active) { color: var(--text); }
.tab.active {
  color: var(--gold-ink);
  background: linear-gradient(180deg, var(--gold-soft), transparent);
  border-bottom-color: var(--gold);
}

.tab-panel { display: none; }
.tab-panel.active { display: flex; flex-direction: column; gap: 18px; }

/* ---------- segmentation: source toggle ---------- */
.seg-srcs { display: flex; gap: 8px; margin-bottom: 14px; }
.seg-src {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--muted);
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 9px;
}
.seg-src.active {
  border-color: var(--gold-ink);
  background: linear-gradient(180deg, var(--gold-soft), transparent);
  color: var(--gold-ink);
}
.seg-srcpanel { margin-top: 4px; }

/* ---------- counts ---------- */
.seg-counts { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.seg-chip {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--muted);
}
.seg-chip b { color: var(--gold-ink); font-size: 16px; font-family: var(--serif); margin-right: 4px; }

/* ---------- date range filter (DB source) ---------- */
.seg-datefilter {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  flex-wrap: wrap;
  margin: 0 0 14px;
  padding: 12px 14px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.seg-datefilter .filter-group { display: flex; flex-direction: column; gap: 4px; }
.seg-datefilter input[type="date"] { min-width: 150px; }
.seg-datefilter input:disabled { opacity: 0.5; }

/* ---------- wave-over-wave: detected-wave selection ---------- */
.seg-wave-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--gold-ink);
  background: var(--gold-soft);
  border: 1px solid var(--gold-line);
  border-radius: 999px;
  padding: 1px 8px;
  margin-left: 6px;
}
.seg-wave-list { display: flex; flex-direction: column; gap: 6px; }
.seg-wave-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold-ink);
  border-radius: 10px;
  cursor: pointer;
  font-size: 13px;
}
.seg-wave-item input { width: auto; min-width: 0; accent-color: var(--gold-ink); }
.seg-wave-item .ww-tag { font-family: var(--serif); font-weight: 700; color: var(--gold-ink); min-width: 58px; }
.seg-wave-item .ww-period { color: var(--text); flex: 1; min-width: 0; }
.seg-wave-item .ww-n { color: var(--muted); font-size: 12px; }

/* ---------- segment-by mode toggle ---------- */
.seg-modes { display: flex; gap: 8px; margin: 10px 0 0; flex-wrap: wrap; }
.seg-mode {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--muted);
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 9px;
  cursor: pointer;
}
.seg-mode.active {
  border-color: var(--gold-ink);
  background: linear-gradient(180deg, var(--gold-soft), transparent);
  color: var(--gold-ink);
}

/* ---------- AI plan preview ---------- */
.seg-ai-plan { margin-top: 10px; }
/* Global .hint has margin-top:-8px (tightens hints under headings); inside the plan
   area that pulls the loading/error line up under the button. Neutralize it here. */
.seg-ai-plan .hint { margin-top: 6px; margin-bottom: 0; }
.seg-approach {
  color: var(--dim);
  border-left: 3px solid var(--gold-ink);
  padding: 2px 0 2px 12px;
  margin-bottom: 10px;
  font-size: 13.5px;
  line-height: 1.55;
}
.seg-approach p { margin: 0 0 6px; }
.seg-approach p:last-child { margin-bottom: 0; }
.seg-approach ul { margin: 4px 0 0; padding-left: 18px; }
.seg-approach li { margin: 2px 0; }
.seg-ai-plan strong { color: var(--text); font-weight: 700; }
.seg-ai-plan em { font-style: italic; }
.seg-ai-plan code {
  font-family: ui-monospace, Menlo, monospace;
  background: var(--panel-2);
  border: 1px solid var(--line);
  padding: 0 5px;
  border-radius: 5px;
  font-size: 0.9em;
}
.seg-axes-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.seg-axis {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold-ink);
  border-radius: 9px;
  padding: 8px 12px;
}
.seg-axis .ax-name { font-weight: 700; color: var(--text); font-size: 14px; }
.seg-axis .ax-why { color: var(--muted); font-size: 12.5px; }

/* ---------- label picker ---------- */
.seg-lbl { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.6px; }
/* question picker toolbar (filter + select all / clear) */
.seg-qtools { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 10px 0 8px; }
.seg-q-search {
  flex: 1; min-width: 170px;
  background: var(--bg); border: 1px solid var(--line); color: var(--text);
  border-radius: 9px; padding: 8px 12px; font-size: 13px;
}
.seg-q-search::placeholder { color: var(--muted); }
.seg-q-search:focus { outline: none; border-color: var(--gold-ink); }

.seg-labels {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 4px;
  max-height: 320px;
  overflow-y: auto;
  overflow-x: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
  background: var(--bg);
}
.seg-litem {
  display: flex; gap: 8px; align-items: center; min-width: 0;
  padding: 7px 9px; border-radius: 8px; font-size: 13px; cursor: pointer;
  border: 1px solid transparent;
}
.seg-litem:hover { background: var(--gold-soft); }
.seg-litem:has(input:checked) { background: var(--gold-soft); border-color: var(--gold-line); }
.seg-litem input { width: auto; min-width: 0; flex: none; accent-color: var(--gold-ink); }
.seg-litem .li-name { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.seg-litem .lt {
  flex: none; color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: 0.4px;
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px;
}

/* ---------- progress log ---------- */
.seg-log {
  background: #14110A;
  color: #E8DCC0;
  border: 1px solid var(--gold-line);
  border-radius: 12px;
  padding: 14px 16px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
  line-height: 1.55;
  max-height: 320px;
  overflow-y: auto;
}
.seg-log .l {
  white-space: pre-wrap;
  word-break: break-word;
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding: 2px 0;
}
.seg-log .l .ic { flex: none; width: 1.1em; text-align: center; opacity: 0.85; }
.seg-log .l .lbl {
  flex: none;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.7;
}
.seg-log .l .msg { flex: 1; min-width: 0; }
.seg-log .l-tool_use { color: #E9C46A; }
.seg-log .l-assistant_text { color: #EDE3CB; }
.seg-log .l-status { color: #9FD9A0; }
.seg-log .l-error { color: #E59A92; }
.seg-log .l-result { color: #F2C94C; font-weight: 700; }

/* ---------- cancel run button ---------- */
.seg-cancel {
  margin-top: 10px;
  background: transparent;
  border: 1px solid var(--bad, #C0524A);
  color: var(--bad, #C0524A);
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 9px;
  cursor: pointer;
}
.seg-cancel:hover:not(:disabled) { background: rgba(192, 82, 74, 0.10); }
.seg-cancel:disabled { opacity: 0.55; cursor: default; }

/* ---------- report iframe ---------- */
.seg-report {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  margin-top: 14px;
  box-shadow: 0 12px 28px rgba(20, 22, 26, 0.07);
}
.seg-report iframe { width: 100%; height: 78vh; border: none; display: block; background: #fff; }

@media (max-width: 640px) {
  .tabs { padding: 0 12px; }
  .seg-labels { grid-template-columns: 1fr; }
  .dl-btn, #seg-run-btn { width: 100%; text-align: center; }
}