:root {
  --bg-base: #f0f4ff;
  --bg-surface: #e8effe;
  --bg-card: #ffffff;
  --bg-card2: #f5f8ff;
  --border: rgba(37,99,235,0.12);
  --border-strong: rgba(37,99,235,0.20);
  --text: #0c1a3a;
  --text-secondary: #3d5a8a;
  --muted: #7a96c0;
  --accent: #2563eb;
  --accent-soft: rgba(37,99,235,0.08);
  --accent-ring: rgba(37,99,235,0.22);
  --replit: #ea580c;
  --replit-soft: rgba(234,88,12,0.08);
  --cursor: #7c3aed;
  --cursor-soft: rgba(124,58,237,0.08);
  --claude: #0891b2;
  --claude-soft: rgba(8,145,178,0.08);
  --green: #059669;
  --amber: #ea580c;
  --rose: #dc2626;
  --font-display: "Plus Jakarta Sans", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --shadow-xs: 0 1px 4px rgba(37,99,235,0.08);
  --shadow-sm: 0 4px 14px rgba(37,99,235,0.08);
  --shadow-md: 0 8px 30px rgba(37,99,235,0.10);
  --shadow-lg: 0 20px 60px rgba(37,99,235,0.13);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--text);
  background-color: var(--bg-base);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.app-wrap {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

/* —— Header —— */
.app-header {
  position: relative;
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.app-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 10% 50%, rgba(37,99,235,0.10) 0%, transparent 70%),
    radial-gradient(ellipse 50% 70% at 80% 20%, rgba(37,99,235,0.06) 0%, transparent 60%),
    radial-gradient(ellipse 40% 50% at 60% 90%, rgba(234,88,12,0.07) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.header-inner { position: relative; z-index: 1; }

.brand-block {
  display: flex;
  align-items: flex-start;
  gap: 1.35rem;
}

.brand-mark {
  flex-shrink: 0;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, #1d4ed8 0%, #2563eb 50%, #60a5fa 100%);
  box-shadow: 0 0 0 1px rgba(37,99,235,0.4), 0 8px 24px rgba(37,99,235,0.25);
  position: relative;
}

.brand-mark::after {
  content: '';
  position: absolute;
  inset: 5px;
  border-radius: 9px;
  border: 1px solid rgba(255,255,255,0.2);
}

.brand-copy { min-width: 0; }

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 1.5rem;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  flex-shrink: 0;
}

h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 5vw, 2.85rem);
  letter-spacing: -0.04em;
  line-height: 1.08;
  margin: 0 0 0.85rem;
  background: linear-gradient(135deg, #0c1a3a 0%, #2563eb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle.lead {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin: 0;
  max-width: 48rem;
  font-weight: 400;
}

.subtitle.lead strong {
  color: var(--text);
  font-weight: 600;
}

.header-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
}

.header-badges li {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: rgba(0,0,0,0.04);
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
}

/* —— Tab bar —— */
.tab-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem;
  margin: 1.5rem 0 0;
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.main-tab {
  appearance: none;
  font-family: var(--font-display);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  padding: 0.65rem 1.5rem;
  min-height: 2.75rem;
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color 0.18s, background 0.18s, border-color 0.18s, box-shadow 0.18s;
}

.main-tab:hover {
  color: var(--text);
  background: rgba(0,0,0,0.04);
}

.main-tab[data-source="replit"]:hover { color: var(--replit); }
.main-tab[data-source="cursor"]:hover { color: var(--cursor); }
.main-tab[data-source="claude"]:hover { color: var(--claude); }

.main-tab.active {
  color: var(--text);
  background: var(--bg-card2);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-xs);
}

.main-tab[data-source="replit"].active {
  color: var(--replit);
  background: var(--replit-soft);
  border-color: rgba(249,115,22,0.3);
  box-shadow: 0 0 0 1px rgba(249,115,22,0.15), inset 0 1px 0 rgba(255,255,255,0.05);
}

.main-tab[data-source="cursor"].active {
  color: var(--cursor);
  background: var(--cursor-soft);
  border-color: rgba(129,140,248,0.3);
  box-shadow: 0 0 0 1px rgba(129,140,248,0.15), inset 0 1px 0 rgba(255,255,255,0.05);
}

.main-tab[data-source="claude"].active {
  color: var(--claude);
  background: var(--claude-soft);
  border-color: rgba(45,212,191,0.3);
  box-shadow: 0 0 0 1px rgba(45,212,191,0.15), inset 0 1px 0 rgba(255,255,255,0.05);
}

/* —— Main surface —— */
.main-surface {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  margin-top: 1rem;
}

.panel {
  display: none;
  padding: 1.75rem 1.75rem 2.5rem;
  background: var(--bg-surface);
  min-height: 40vh;
}

.panel.active { display: block; }

#panel-replit.panel.active  { box-shadow: inset 0 3px 0 rgba(234,88,12,0.35); }
#panel-cursor.panel.active  { box-shadow: inset 0 3px 0 rgba(124,58,237,0.30); }
#panel-claude.panel.active  { box-shadow: inset 0 3px 0 rgba(8,145,178,0.30); }

/* —— Toolbar —— */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: flex-end;
  margin-bottom: 1.35rem;
  padding-bottom: 1.35rem;
  border-bottom: 1px solid var(--border);
}

/* —— Upload zone —— */
.upload-zone {
  display: block;
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  cursor: pointer;
  transition: box-shadow 0.2s, transform 0.18s, background 0.2s;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-xs);
  position: relative;
  overflow: hidden;
}

.upload-zone::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37,99,235,0.06) 0%, transparent 60%);
  pointer-events: none;
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring), var(--shadow-sm);
  transform: translateY(-1px);
}

.upload-zone strong {
  display: block;
  margin-bottom: 0.25rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
}

.upload-zone span {
  display: block;
  color: var(--text-secondary);
  font-size: 0.82rem;
}

.upload-zone input { display: none; }

.file-list {
  list-style: none;
  margin: 0.6rem 0 0;
  padding: 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.file-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
}

.file-list li:last-child { border-bottom: none; }

.btn-remove {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}

.btn-remove:hover {
  color: var(--rose);
  background: rgba(248,113,113,0.1);
}

/* —— View modes —— */
.view-modes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.view-modes label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.85rem;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: border-color 0.18s, background 0.18s, color 0.18s;
}

.view-modes label:hover {
  border-color: rgba(0,0,0,0.2);
  color: var(--text);
  background: var(--bg-card2);
}

.view-modes label:has(input:checked) {
  border-color: var(--accent);
  color: #2563eb;
  background: var(--accent-soft);
  font-weight: 600;
}

.view-modes input { accent-color: var(--accent); }

/* —— Download button —— */
.btn-dl-csv {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(37,99,235,0.35);
  background: linear-gradient(135deg, rgba(37,99,235,0.10) 0%, rgba(37,99,235,0.05) 100%);
  color: #2563eb;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
  white-space: nowrap;
}

.btn-dl-csv:hover {
  background: rgba(99,102,241,0.22);
  border-color: rgba(99,102,241,0.6);
  box-shadow: 0 0 0 2px var(--accent-ring);
}

/* —— Fetch Cursor button —— */
.btn-fetch-cursor {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(129,140,248,0.45);
  background: linear-gradient(135deg, rgba(129,140,248,0.18) 0%, rgba(99,102,241,0.1) 100%);
  color: var(--cursor);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s, opacity 0.15s;
  white-space: nowrap;
}

.btn-fetch-cursor:hover:not(:disabled) {
  background: rgba(129,140,248,0.25);
  border-color: rgba(129,140,248,0.7);
  box-shadow: 0 0 0 2px rgba(129,140,248,0.2);
}

.btn-fetch-cursor:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.cursor-fetch-status {
  font-size: 0.75rem;
  font-family: var(--font-display);
  font-weight: 500;
  min-height: 1.1rem;
  color: var(--muted);
}

.cursor-fetch-status.ok    { color: var(--green); }
.cursor-fetch-status.error { color: var(--rose); }
.cursor-fetch-status.warn  { color: var(--amber); }

/* —— Search —— */
.search-row {
  margin-bottom: 1.1rem;
  max-width: 28rem;
}

.stats-search {
  width: 100%;
  max-width: 28rem;
  padding: 0.65rem 1rem 0.65rem 2.6rem;
  font-size: 0.9rem;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg-card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='7' cy='7' r='5'/%3E%3Cpath d='M10.5 10.5 14 14'/%3E%3C/svg%3E") 0.8rem 50% no-repeat;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xs);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.stats-search::placeholder { color: var(--muted); }

.stats-search:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring);
}

/* —— Table —— */
.table-wrap {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  max-height: min(55vh, 540px);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

table.data th {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 0.8rem 1rem;
  text-align: left;
  background: #f0f4ff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  border-bottom: 1px solid var(--border-strong);
  transition: color 0.15s, background 0.15s;
}

table.data th:hover {
  color: var(--text);
  background: #e0eaff;
}

table.data td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

table.data tbody tr:nth-child(even) td {
  background: rgba(0,0,0,0.025);
}

table.data tbody tr {
  transition: background 0.1s;
}

table.data tbody tr:hover td {
  background: rgba(99,102,241,0.06) !important;
  color: var(--text);
}

table.data td.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: #2563eb;
  font-weight: 600;
}

.data th.num { text-align: right; padding-right: 1rem; }

.data td.cell-models {
  white-space: pre-line;
  max-width: 28rem;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--text-secondary);
  vertical-align: top;
}

/* —— KPI cards —— */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  border-radius: var(--radius-md);
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--border-strong);
  transition: transform 0.18s, box-shadow 0.2s;
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.5;
  pointer-events: none;
}

.kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.kpi-card.kpi-rows::before { background: linear-gradient(135deg, rgba(37,99,235,0.10) 0%, transparent 60%); }
.kpi-card.kpi-rows .kpi-value { color: #2563eb; }

.kpi-card.kpi-tokens::before { background: linear-gradient(135deg, rgba(5,150,105,0.10) 0%, transparent 60%); }
.kpi-card.kpi-tokens .kpi-value { color: var(--green); }

.kpi-card.kpi-cost::before { background: linear-gradient(135deg, rgba(234,88,12,0.10) 0%, transparent 60%); }
.kpi-card.kpi-cost .kpi-value { color: var(--amber); }

.kpi-card .kpi-label {
  font-family: var(--font-display);
  font-size: 0.67rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 0.5rem;
  position: relative;
}

.kpi-card .kpi-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  position: relative;
}

/* —— Charts —— */
[id^="charts-"] { margin-bottom: 1.75rem; }

.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
  align-items: start;
  margin-top: 0.25rem;
}

.chart-card.wide { grid-column: 1 / -1; }

@media (min-width: 900px) {
  .charts-grid { grid-template-columns: 1fr 1fr; }
  .chart-card.wide { grid-column: span 2; }
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.chart-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #2563eb, #60a5fa);
}

.chart-card:nth-of-type(even)::before {
  background: linear-gradient(90deg, #ea580c, #fb923c);
}

.chart-card h3 {
  font-family: var(--font-display);
  margin: 0 0 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
}

.chart-card canvas { max-height: 280px; }

/* —— Meta / empty —— */
.meta {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 500;
  margin-top: 0.25rem;
  padding: 0.3rem 0;
  font-family: var(--font-display);
}

.empty-hint {
  color: var(--muted);
  padding: 3rem 1.5rem;
  text-align: center;
  font-size: 0.9375rem;
  line-height: 1.65;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px dashed var(--border-strong);
}

/* —— Footer —— */
.app-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem 0.75rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
  font-family: var(--font-display);
  font-weight: 500;
}

.footer-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--muted);
}

/* —— Utilities —— */
.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;
}

/* —— Responsive —— */
@media (max-width: 640px) {
  .app-wrap { padding-left: 1rem; padding-right: 1rem; }

  .tab-bar { padding: 0.5rem; gap: 0.4rem; }

  .main-tab {
    flex: 1; min-width: 0; text-align: center;
    padding: 0.6rem 0.75rem; min-height: 2.5rem;
    font-size: 0.9rem;
  }

  .brand-block { flex-direction: column; align-items: flex-start; }

  .panel { padding: 1.25rem 1rem 1.75rem; }

  .main-surface { border-radius: var(--radius-lg); }

  h1 { font-size: 1.75rem; }
}