:root {
  --teal: #0f766e;
  --teal-dark: #115e59;
  --ink: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --bg: #f1f5f9;
  --amber-bg: #fffbeb;
  --amber-line: #fde68a;
  --amber-ink: #92400e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.app {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 16px 60px;
}

.topbar {
  background: linear-gradient(135deg, #173f5f, var(--teal));
  color: #fff;
  border-radius: 0 0 18px 18px;
  padding: 22px 24px;
  margin-bottom: 18px;
}

.brand { display: flex; align-items: center; gap: 12px; }

.brand-logo {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 4px 10px;
  font-weight: 700;
  font-size: 18px;
}

.brand-name { font-size: 22px; font-weight: 700; }
.brand-sub { margin-top: 8px; font-size: 13px; opacity: 0.85; }

.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  margin-bottom: 16px;
}

.tab {
  flex: 0 0 auto;
  padding: 10px 18px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--muted);
  cursor: pointer;
  font-size: 15px;
  white-space: nowrap;
  transition: all 0.15s;
}

.tab:hover { border-color: var(--teal); color: var(--teal); }
.tab.active { background: var(--teal); border-color: var(--teal); color: #fff; }

.stage {
  background: #fff;
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.05);
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-title { margin: 0; font-size: 22px; }
.panel-desc { margin: 6px 0 0; font-size: 13px; color: var(--muted); line-height: 1.5; }

.status-chip {
  flex: 0 0 auto;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 13px;
  background: #e5e7eb;
  color: #374151;
}
.status-chip.ready { background: #d1fae5; color: var(--teal-dark); }
.status-chip.snapshot { background: #fef3c7; color: var(--amber-ink); }

.snapshot-banner {
  margin-bottom: 16px;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--amber-bg);
  border: 1px solid var(--amber-line);
  color: var(--amber-ink);
  font-size: 13px;
  line-height: 1.5;
}

.error {
  margin-bottom: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  background: #fef2f2;
  color: #b91c1c;
  font-size: 14px;
}

.search-row { display: flex; gap: 10px; margin-bottom: 16px; }

.num-input {
  flex: 1;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 16px;
  outline: none;
}
.num-input:focus { border-color: var(--teal); }

.btn {
  border: none;
  border-radius: 10px;
  padding: 0 22px;
  font-size: 15px;
  cursor: pointer;
}
.btn.primary { background: var(--teal); color: #fff; }
.btn.primary:hover { background: var(--teal-dark); }
.btn.ghost { background: #f1f5f9; color: var(--teal); padding: 6px 14px; }

.filter { margin-bottom: 14px; }
.filter > label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 8px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips.scroll { max-height: 132px; overflow-y: auto; }

.chip {
  padding: 7px 14px;
  border-radius: 999px;
  background: #f1f5f9;
  border: 1px solid transparent;
  color: #475569;
  cursor: pointer;
  font-size: 14px;
}
.chip:hover { border-color: var(--teal); }
.chip.selected { background: var(--teal); color: #fff; }
.chip.muted { opacity: 0.4; }

.result-card {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 18px 0;
  padding: 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, #ecfdf5, #f0fdfa);
}
.metric-label { font-size: 13px; color: var(--muted); }
.metric-num { margin-top: 6px; font-size: 24px; font-weight: 700; color: var(--teal-dark); }

.notice {
  margin: 12px 0;
  padding: 10px 14px;
  border-radius: 10px;
  background: #eff6ff;
  color: #1d4ed8;
  font-size: 13px;
}

.section-title { margin: 20px 0 12px; font-size: 16px; }

.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th, .data-table td { padding: 10px 8px; text-align: center; border-bottom: 1px solid #eef2f7; }
.data-table th { color: var(--muted); font-weight: 600; background: #f8fafc; }

.empty {
  margin-top: 14px;
  padding: 28px;
  text-align: center;
  color: var(--muted);
  background: #f8fafc;
  border-radius: 12px;
  font-size: 14px;
}

.line-list { display: flex; flex-direction: column; gap: 10px; }
.line-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; border-radius: 12px; background: #f8fafc;
}
.line-title { font-size: 15px; font-weight: 600; }
.line-sub { margin-top: 3px; font-size: 12px; color: var(--muted); }
.line-score { font-size: 20px; font-weight: 700; color: var(--teal-dark); }

/* PK */
.pk-list { display: flex; flex-direction: column; gap: 10px; }
.pk-item {
  display: flex; align-items: center; gap: 14px;
  padding: 14px; border-radius: 12px; background: #f8fafc;
  border: 2px solid transparent; cursor: pointer;
}
.pk-item.selected { background: #ecfdf5; border-color: var(--teal); }
.pk-rank {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--teal); color: #fff; font-size: 14px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.pk-main { flex: 1; min-width: 0; }
.pk-name { font-size: 16px; font-weight: 700; }
.pk-tags { margin-top: 4px; font-size: 12px; color: var(--muted); }
.pk-badges { margin-top: 6px; display: flex; flex-wrap: wrap; gap: 6px; }
.pk-badge { font-size: 11px; padding: 2px 8px; border-radius: 6px; background: #e0f2fe; color: #0369a1; }
.pk-check {
  width: 32px; height: 32px; border-radius: 50%;
  background: #e5e7eb; color: #374151; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 18px;
}
.pk-item.selected .pk-check { background: var(--teal); color: #fff; }

.compare-wrap { margin-top: 20px; border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.compare-head { display: flex; align-items: center; justify-content: space-between; }
.compare-scroll { overflow-x: auto; }
.compare-grid { display: flex; gap: 12px; }
.compare-col { flex: 0 0 180px; background: #f8fafc; border-radius: 10px; padding: 12px; }
.compare-col h4 { margin: 0 0 8px; font-size: 14px; }
.compare-col .cell { font-size: 12px; color: #4b5563; padding: 6px 0; border-top: 1px solid #eef2f7; }

/* same score */
.ss-context, .ad-context-box {
  margin-bottom: 14px; padding: 10px 14px; border-radius: 10px;
  background: #f0fdfa; color: var(--teal-dark); font-size: 13px;
}
.subtabs { display: flex; gap: 8px; margin-bottom: 14px; }
.subtab {
  flex: 1; padding: 10px; border: none; border-radius: 8px;
  background: #f1f5f9; color: var(--muted); cursor: pointer; font-size: 14px;
}
.subtab.active { background: var(--teal); color: #fff; }

.rank-list { display: flex; flex-direction: column; gap: 8px; }
.rank-row { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 10px; background: #f8fafc; }
.rank-no { width: 28px; text-align: center; font-weight: 700; color: var(--teal); flex-shrink: 0; }
.rank-main { flex: 1; min-width: 0; }
.rank-name { font-size: 15px; }
.rank-sub { margin-top: 3px; font-size: 12px; color: var(--muted); }
.rank-rate { font-size: 17px; font-weight: 700; color: var(--teal-dark); flex-shrink: 0; }

/* admission delta */
.ad-list { display: flex; flex-direction: column; gap: 8px; }
.ad-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 14px; border-radius: 10px; background: #f8fafc; }
.ad-main { flex: 1; min-width: 0; }
.ad-name { font-size: 15px; font-weight: 600; }
.ad-sub { margin-top: 3px; font-size: 12px; color: var(--muted); }
.ad-metrics { text-align: right; flex-shrink: 0; }
.ad-diff { font-size: 18px; font-weight: 700; }
.ad-diff.expand { color: #dc2626; }
.ad-diff.narrow { color: #2563eb; }
.ad-diff.same { color: var(--muted); }
.ad-plan { margin-top: 3px; font-size: 12px; color: var(--muted); }

.foot { margin-top: 20px; text-align: center; font-size: 12px; color: var(--muted); line-height: 1.6; }