:root {
  --bg: #0b1220;
  --panel: #0f1b34;
  --panel-2: #0c1630;
  --accent: #00b2b2;
  --accent-2: #0c6db0;
  --text: #eaf2ff;
  --muted: #9bb0cf;
  --card: #07112a;
  --bg-gradient: radial-gradient(circle at top, #12244f 0%, #060c18 55%, #04070f 100%);
  --topbar-bg: linear-gradient(90deg, #0b1022 0%, #102450 50%, #0b1022 100%);
  --topbar-border: #10284b;
  --panel-border: #1b2f52;
  --input-bg: #0a162d;
  --input-border: #2f446a;
  --surface: #ffffff;
  --surface-text: #0b1220;
  --table-border: #c6ceda;
  --table-header-bg: #1a7f88;
  --table-header-text: #ffffff;
  --table-row-alt: #eef4ff;
  --chart-card-bg: #ffffff;
  --chart-title-bg: #1a7f88;
  --chart-title-text: #ffffff;
  --chart-line-1: #2a6fdb;
  --chart-line-2: #ff6b6b;
  --chart-line-3: #2fbf71;
  --chart-line-4: #f59f00;
  --chart-tick: #2f3b52;
  --chart-grid: rgba(0, 0, 0, 0.12);
}

body.theme-light {
  --bg: #f3f5f9;
  --panel: #ffffff;
  --panel-2: #f0f3f8;
  --accent: #0bb3a4;
  --accent-2: #1f6fd1;
  --text: #0f172a;
  --muted: #4b5563;
  --card: #f8fafc;
  --bg-gradient: radial-gradient(circle at top, #f9fbff 0%, #eef2f7 55%, #e7edf5 100%);
  --topbar-bg: linear-gradient(90deg, #ffffff 0%, #edf2f8 50%, #ffffff 100%);
  --topbar-border: #cbd5e1;
  --panel-border: #d3dae6;
  --input-bg: #ffffff;
  --input-border: #cbd5e1;
  --surface: #ffffff;
  --surface-text: #0f172a;
  --table-border: #cbd5e1;
  --table-header-bg: #0f766e;
  --table-header-text: #ffffff;
  --table-row-alt: #f1f5f9;
  --chart-card-bg: #ffffff;
  --chart-title-bg: #0f766e;
  --chart-title-text: #ffffff;
  --chart-line-1: #1f6fd1;
  --chart-line-2: #c026d3;
  --chart-line-3: #0f766e;
  --chart-line-4: #d97706;
  --chart-tick: #334155;
  --chart-grid: rgba(15, 23, 42, 0.12);
}

body.theme-crimson {
  --bg: #14090c;
  --panel: #1d0d12;
  --panel-2: #220f16;
  --accent: #ffb703;
  --accent-2: #c1121f;
  --text: #f8f4f6;
  --muted: #c4b5bd;
  --card: #13080c;
  --bg-gradient: radial-gradient(circle at top, #2b1118 0%, #12070b 55%, #070306 100%);
  --topbar-bg: linear-gradient(90deg, #1b0b12 0%, #2a0f17 50%, #1b0b12 100%);
  --topbar-border: #3a1620;
  --panel-border: #3a1620;
  --input-bg: #12070b;
  --input-border: #4a1f2b;
  --surface: #1a0d12;
  --surface-text: #f8f4f6;
  --table-border: #4a1f2b;
  --table-header-bg: #7b001c;
  --table-header-text: #f8f4f6;
  --table-row-alt: #1f1117;
  --chart-card-bg: #12070b;
  --chart-title-bg: #7b001c;
  --chart-title-text: #f8f4f6;
  --chart-line-1: #e63946;
  --chart-line-2: #ffb703;
  --chart-line-3: #2a9d8f;
  --chart-line-4: #4cc9f0;
  --chart-tick: #d9cbd2;
  --chart-grid: rgba(248, 244, 246, 0.2);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg-gradient);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--topbar-bg);
  border-bottom: 2px solid var(--topbar-border);
}

.brand {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1px;
}

.tech-switch {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tech-btn {
  border: 1px solid var(--panel-border);
  background: var(--panel-2);
  color: var(--text);
  padding: 8px 16px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.tech-btn.active {
  background: var(--accent-2);
  border-color: var(--accent);
}

.layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 16px;
  padding: 16px;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  padding: 14px;
}

.panel h2 {
  margin: 0 0 12px 0;
  background: var(--accent);
  color: #00131f;
  text-align: center;
  padding: 6px 8px;
  font-size: 14px;
  letter-spacing: 0.5px;
}

.compare-panel input {
  background: #0a162d;
  color: var(--text);
  border: 1px solid #2f446a;
  padding: 6px 8px;
  font-size: 12px;
  height: 32px;
}

.compare-hint {
  font-size: 12px;
  color: var(--muted);
}

.exec-input {
  display: flex;
  gap: 8px;
  align-items: center;
}

.exec-input input {
  background: #0a162d;
  color: var(--text);
  border: 1px solid #2f446a;
  padding: 6px 8px;
  font-size: 12px;
  height: 32px;
  flex: 1;
}

.exec-input button {
  background: var(--accent-2);
  color: #fff;
  border: 0;
  padding: 6px 10px;
  font-weight: 600;
  cursor: pointer;
}

.exec-list {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.exec-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #0a162d;
  border: 1px solid #2f446a;
  padding: 6px 8px;
  font-size: 12px;
  color: var(--text);
}

.exec-item button {
  background: #0b1220;
  color: #fff;
  border: 0;
  padding: 2px 8px;
  cursor: pointer;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.field.two {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 8px;
}

label {
  font-size: 12px;
  color: var(--muted);
}

select,
input[type="date"],
input[type="number"] {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
  padding: 6px 8px;
  font-size: 12px;
  width: 100%;
  height: 32px;
  min-width: 0;
  max-width: 100%;
}

input[type="datetime-local"] {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
  padding: 6px 8px;
  font-size: 11px;
  width: 100%;
  height: 32px;
  min-width: 0;
  max-width: 100%;
}

#upload-file,
#upload-delimiter,
#upload-encoding,
#upload-null {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
  padding: 6px 8px;
  font-size: 12px;
  width: 100%;
}

#upload-file {
  padding: 6px;
}

.field.inline {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

#apply {
  width: 100%;
  background: var(--accent-2);
  color: #fff;
  border: 0;
  padding: 8px 12px;
  font-weight: 700;
  cursor: pointer;
}

.btn {
  width: 100%;
  background: var(--accent);
  color: #00131f;
  border: 0;
  padding: 8px 12px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}

.btn-secondary {
  background: var(--accent-2);
  color: #fff;
}

#upload-submit {
  width: 100%;
  background: var(--accent);
  color: #00131f;
  border: 0;
  padding: 8px 12px;
  font-weight: 700;
  cursor: pointer;
}

.upload-status {
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
  min-height: 16px;
}

.upload-status.success {
  color: #8cf2b9;
}

.upload-status.error {
  color: #ff8a8a;
}

.summary {
  min-height: 300px;
}

.summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.summary-card {
  background: var(--card);
  border: 1px solid var(--panel-border);
  padding: 10px;
  text-align: center;
}

.summary-card h3 {
  margin: 0 0 6px 0;
  font-size: 12px;
  color: var(--accent);
}

.summary-values {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--muted);
}

.summary-values span {
  color: var(--text);
  font-weight: 600;
}

.summary-arrow {
  margin: 6px 0;
  height: 4px;
  background: linear-gradient(90deg, #ffcc00, #ff6b6b);
}

.content {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.view-toggle {
  display: flex;
  gap: 8px;
  align-self: flex-start;
  flex-wrap: wrap;
}

.view-toggle .btn-secondary {
  padding: 6px 12px;
  min-width: 70px;
}

.view-toggle .active {
  background: var(--accent);
  color: #00131f;
}

.hidden {
  display: none !important;
}

.loading-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4, 7, 15, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  pointer-events: none;
  z-index: 9999;
}

.loading-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.loading-content {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: rgba(7, 17, 42, 0.92);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  color: var(--text);
  font-size: 13px;
  letter-spacing: 0.4px;
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid #4aa3ff;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.table-view {
  background: var(--surface);
  border: 1px solid var(--table-border);
  overflow: auto;
  max-height: 70vh;
}

.table-toolbar {
  display: flex;
  justify-content: flex-end;
  padding: 8px;
  border-bottom: 1px solid var(--table-border);
  background: var(--panel-2);
}

.kpi-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  color: var(--surface-text);
}

.kpi-table th,
.kpi-table td {
  border: 1px solid var(--table-border);
  padding: 6px 8px;
  text-align: center;
  white-space: nowrap;
}

.kpi-table th {
  background: var(--table-header-bg);
  color: var(--table-header-text);
  position: sticky;
  top: 0;
  z-index: 1;
}

.kpi-table tbody tr:nth-child(even) {
  background: var(--table-row-alt);
}

.kpi-table tbody tr {
  cursor: pointer;
}

.kpi-table tbody tr:hover {
  background: color-mix(in srgb, var(--table-row-alt) 60%, transparent);
}

.kpi-table .remark-maintain {
  background: #bfe27a;
}

.kpi-table .remark-improve {
  background: #7ab6ff;
}

.kpi-table .remark-degrade {
  background: #ffd1a8;
}

.wpc-table .remark-maintain {
  background: #bfe27a;
}

.wpc-table .remark-improve {
  background: #7ab6ff;
}

.wpc-table .remark-degrade {
  background: #ffd1a8;
}

.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 12px;
}

.chart-card {
  background: var(--chart-card-bg);
  border-radius: 2px;
  overflow: hidden;
  border: 1px solid var(--table-border);
}

.chart-title {
  margin: 8px;
  background: var(--chart-title-bg);
  color: var(--chart-title-text);
  padding: 10px 8px;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.5px;
  border-radius: 8px;
}

.chart-body {
  padding: 0 8px 10px;
  height: 200px;
}

.chart-body canvas {
  width: 100% !important;
  height: 100% !important;
}

.chart-toolbar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  flex-wrap: wrap;
}

.wpc-modal {
  position: fixed;
  inset: 0;
  background: rgba(3, 6, 12, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 2000;
}

.wpc-dialog {
  background: var(--surface);
  color: var(--surface-text);
  border-radius: 6px;
  border: 1px solid var(--table-border);
  width: min(600px, 92vw);
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
}

.wpc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  background: var(--table-header-bg);
  color: var(--table-header-text);
}

.wpc-header h3 {
  margin: 0;
  font-size: 16px;
}

.wpc-range {
  font-size: 12px;
  opacity: 0.9;
}

.wpc-close {
  border: 0;
  background: var(--panel-2);
  color: var(--text);
  padding: 6px 12px;
  font-weight: 600;
  cursor: pointer;
}

.wpc-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.wpc-body {
  padding: 12px 16px 16px;
  overflow: hidden;
}

.wpc-status {
  font-size: 12px;
  color: var(--muted);
  min-height: 16px;
  margin-bottom: 8px;
}

.wpc-table-wrap {
  max-height: 320px;
  overflow: auto;
  border: 1px solid var(--table-border);
}

.wpc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.wpc-table th,
.wpc-table td {
  border: 1px solid var(--table-border);
  padding: 6px 8px;
  text-align: center;
}

.wpc-table th {
  background: var(--table-header-bg);
  color: var(--table-header-text);
  position: sticky;
  top: 0;
}

@media (max-width: 1024px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .summary-grid {
    grid-template-columns: 1fr;
  }
}