:root {
  --bg-top: #f4f8ff;
  --bg-bottom: #eaf1ff;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #51627f;
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --primary-soft: #e9f1ff;
  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --border: #d9e4fb;
  --shadow: 0 14px 36px rgba(37, 99, 235, 0.1);
  --shadow-soft: 0 8px 24px rgba(37, 99, 235, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(920px 540px at -8% -12%, rgba(59, 130, 246, 0.33), transparent 62%),
    radial-gradient(820px 520px at 108% 3%, rgba(37, 99, 235, 0.27), transparent 58%),
    linear-gradient(180deg, #eef4ff 0%, #dfeaff 54%, #d2e2ff 100%);
  background-attachment: fixed;
  min-height: 100vh;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.08) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.88), transparent 80%);
  -webkit-mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.88), transparent 80%);
  opacity: 0.78;
  z-index: 0;
}

.app-shell {
  width: min(1160px, 94vw);
  margin: 1.6rem auto 2.2rem;
  display: grid;
  gap: 1rem;
  position: relative;
  z-index: 1;
}

.hero {
  display: grid;
  gap: 0.35rem;
  padding: 1.1rem 1.2rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(245, 250, 255, 0.86));
  border: 1px solid #d3e1fb;
  border-radius: 16px;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(3px);
}

.eyebrow {
  margin: 0;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 2.05rem);
  line-height: 1.18;
}

.hero p {
  margin: 0;
  max-width: 82ch;
  color: var(--muted);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(320px, calc(38.2% + 20px)) minmax(0, calc(61.8% - 20px));
  gap: 1rem;
  align-items: start;
}

.insights-column {
  display: grid;
  gap: 1rem;
}

.card {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(2px);
  position: relative;
  overflow: visible;
}

.setup-panel {
  position: sticky;
  top: 1rem;
  z-index: 20;
}

.card h2 {
  margin: 0 0 0.72rem;
  font-size: 1.03rem;
  font-weight: 700;
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}

.card-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-compact {
  padding: 0.26rem 0.5rem;
  font-size: 0.74rem;
  line-height: 1.1;
  border-radius: 7px;
}

.inline-tip {
  position: relative;
  display: inline-flex;
  align-items: center;
  z-index: 30;
}

.tip-tooltip {
  left: auto;
  right: 0;
  width: min(310px, 72vw);
}

.grid {
  display: grid;
  gap: 0.72rem;
}

.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field span {
  font-weight: 600;
  font-size: 0.86rem;
  color: #1f2e4d;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  width: 100%;
  padding: 0.66rem 0.74rem;
  border: 1px solid #ceddfa;
  border-radius: 10px;
  background: #ffffff;
  color: var(--text);
}

input::placeholder {
  color: #8293b0;
}

input:focus,
select:focus,
button:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.22);
  outline-offset: 1px;
}

.fairness-box {
  margin-top: 0.9rem;
  border: 1px solid #cfddfb;
  border-radius: 12px;
  padding: 0.75rem;
  background: linear-gradient(180deg, #f8fbff, #f2f7ff);
}

.fairness-box h3 {
  margin: 0 0 0.2rem;
  font-size: 0.95rem;
}

.fairness-box p {
  margin: 0 0 0.6rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.guardrail-slider {
  display: grid;
  gap: 0.5rem;
}

.guardrail-values {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
}

.guardrail-values p {
  margin: 0;
  font-size: 0.82rem;
  color: #1f3561;
  font-weight: 700;
}

.guardrail-values output {
  color: #0b4ab7;
}

.range-track {
  position: relative;
  height: 2rem;
}

.range-track::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 0.35rem;
  transform: translateY(-50%);
  border-radius: 999px;
  background: #d7e4fd;
}

.range-active {
  position: absolute;
  top: 50%;
  height: 0.35rem;
  transform: translateY(-50%);
  border-radius: 999px;
  background: linear-gradient(90deg, #3b82f6, #1d4ed8);
  left: 0%;
  width: 100%;
}

.range-track input[type="range"] {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  pointer-events: none;
}

.range-track input[type="range"]::-webkit-slider-runnable-track {
  height: 0.35rem;
  background: transparent;
}

.range-track input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 1rem;
  height: 1rem;
  margin-top: -0.33rem;
  border-radius: 999px;
  border: 2px solid #1d4ed8;
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(29, 78, 216, 0.28);
  cursor: pointer;
  pointer-events: auto;
}

.range-track input[type="range"]::-moz-range-track {
  height: 0.35rem;
  background: transparent;
}

.range-track input[type="range"]::-moz-range-thumb {
  width: 1rem;
  height: 1rem;
  border-radius: 999px;
  border: 2px solid #1d4ed8;
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(29, 78, 216, 0.28);
  cursor: pointer;
  pointer-events: auto;
}

.contributors {
  margin-top: 0.95rem;
}

.contributors-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.66rem;
}

.contributors-head h3 {
  margin: 0;
  font-size: 0.96rem;
}

.contributors-list {
  display: grid;
  gap: 0.6rem;
}

.contributor-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 0.55rem;
  border: 1px solid #d7e4fd;
  border-radius: 12px;
  padding: 0.66rem;
  align-items: end;
  background: #fcfeff;
}

.actions {
  margin-top: 0.92rem;
}

.btn {
  border: 1px solid transparent;
  padding: 0.62rem 0.9rem;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.btn.primary {
  background: var(--primary);
  color: #fff;
}

.btn.primary:hover {
  background: var(--primary-strong);
}

.btn.secondary {
  background: var(--primary-soft);
  color: var(--primary-strong);
  border-color: #cfe0ff;
}

.btn.secondary:hover {
  background: #dbe8ff;
}

.btn.tertiary {
  background: #ffffff;
  color: #1e3a8a;
  border-color: #bfd3ff;
}

.btn.tertiary:hover {
  background: #eff5ff;
}

.btn.danger {
  background: var(--danger-soft);
  color: var(--danger);
  border-color: #fecaca;
}

.result-state {
  padding: 0.75rem;
  border: 1px dashed #c8d8fb;
  border-radius: 10px;
  background: #f9fbff;
  line-height: 1.45;
}

.muted {
  color: var(--muted);
}

.results {
  margin-top: 0.85rem;
  display: grid;
  gap: 0.6rem;
}

.hidden {
  display: none;
}

.score-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #f8fbff;
  padding: 0.8rem;
  margin-bottom: 0.8rem;
  box-shadow: var(--shadow-soft);
}

.score-top {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.score-title-row {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  position: relative;
}

.score-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.score-info {
  position: relative;
  display: inline-flex;
  align-items: center;
  z-index: 30;
}

.info-trigger {
  width: 1.15rem;
  height: 1.15rem;
  border-radius: 999px;
  border: 1px solid #8fb0f6;
  background: #f1f6ff;
  color: #1d4ed8;
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: help;
}

.score-tooltip {
  position: absolute;
  top: calc(100% + 0.45rem);
  left: -0.35rem;
  width: min(340px, 75vw);
  padding: 0.55rem 0.6rem;
  border-radius: 10px;
  border: 1px solid #bfd3ff;
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(29, 78, 216, 0.16);
  color: #1f3561;
  font-size: 0.8rem;
  line-height: 1.35;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity 0.14s ease, transform 0.14s ease, visibility 0.14s ease;
}

.score-tooltip p {
  margin: 0.2rem 0;
}

.score-info:hover .score-tooltip,
.score-info:focus-within .score-tooltip,
.inline-tip:hover .score-tooltip,
.inline-tip:focus-within .score-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.score-value {
  margin: 0;
  font-weight: 800;
  font-size: 1.5rem;
  line-height: 1;
}

.score-value span {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  margin-left: 0.15rem;
}

.score-status {
  margin: 0;
  font-weight: 700;
  font-size: 0.9rem;
}

.score-explainer {
  margin-top: 0.45rem;
  border-top: 1px solid #dce7ff;
  padding-top: 0.45rem;
}

.score-explainer p {
  margin: 0.2rem 0;
  font-size: 0.88rem;
  color: #2a3e62;
}

.score-card.good .score-value,
.score-card.good .score-status {
  color: #0f766e;
}

.score-card.medium .score-value,
.score-card.medium .score-status {
  color: #92400e;
}

.score-card.risk .score-value,
.score-card.risk .score-status {
  color: #b91c1c;
}

.result-row,
.insight-box {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fdfefe;
  padding: 0.75rem;
}

.result-row {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  align-items: baseline;
}

.result-row small {
  display: block;
  color: var(--muted);
  margin-top: 0.14rem;
}

.insight-box {
  background: linear-gradient(180deg, #fafdff 0%, #f3f8ff 100%);
}

.insight-header {
  margin-bottom: 0.55rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px dashed #c8dafd;
}

.insight-kicker {
  margin: 0;
  font-size: 0.73rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #345ca8;
  font-weight: 700;
}

.insight-header h3 {
  margin: 0.12rem 0 0;
  font-size: 1rem;
}

.insight-grid {
  display: grid;
  gap: 0.42rem;
}

.insight-item {
  margin: 0;
  padding: 0.45rem 0.55rem;
  background: #ffffff;
  border: 1px solid #d6e4ff;
  border-left: 4px solid #7aa6f7;
  border-radius: 8px;
  color: #1d2c4a;
  font-size: 0.88rem;
  line-height: 1.4;
}

.insight-item.warning {
  border-left-color: #f97316;
  background: #fff7ed;
}

.insight-item.positive {
  border-left-color: #0f766e;
  background: #f0fdfa;
}

.warning {
  color: #9a3412;
  font-weight: 700;
}

.comparison {
  margin-top: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #f8fbff;
  padding: 0.75rem;
}

.comparison h3 {
  margin: 0 0 0.2rem;
  font-size: 0.98rem;
}

.comparison > p {
  margin: 0 0 0.6rem;
  color: var(--muted);
  font-size: 0.87rem;
}

.comparison-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr 1fr;
  gap: 0.45rem;
  border-bottom: 1px solid #d6e3ff;
  padding: 0.45rem 0;
  align-items: center;
  font-size: 0.88rem;
}

.comparison-head {
  font-weight: 700;
  color: #1f3561;
}

.comparison-row:last-of-type {
  border-bottom: 0;
}

.comparison-totals {
  border-top: 1px dashed #bfd3ff;
  margin-top: 0.45rem;
  padding-top: 0.45rem;
  display: grid;
  gap: 0.2rem;
}

.comparison-totals p {
  margin: 0;
  font-size: 0.88rem;
  color: #1f3561;
}

.delta-up {
  color: #b91c1c;
  font-weight: 700;
}

.delta-down {
  color: #0f766e;
  font-weight: 700;
}

.delta-neutral {
  color: var(--muted);
  font-weight: 700;
}

.method-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.method-detail {
  border: 1px solid #d3e1fb;
  border-radius: 11px;
  padding: 0.75rem;
  background: #fcfeff;
}

.method-detail h3 {
  margin: 0 0 0.3rem;
  font-size: 0.94rem;
}

.method-detail p {
  margin: 0;
  color: #28406a;
  font-size: 0.9rem;
  line-height: 1.4;
}

.error {
  color: #b91c1c;
  font-weight: 700;
}

.site-footer {
  width: min(1160px, 94vw);
  margin: 0 auto 1.35rem;
  text-align: center;
}

.site-footer p {
  margin: 0;
  color: #334a75;
  font-size: 0.84rem;
}

.site-footer a {
  color: #1d4ed8;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(29, 78, 216, 0.35);
}

.site-footer a:hover {
  color: #1e3a8a;
  border-bottom-color: rgba(30, 58, 138, 0.5);
}

@media (max-width: 1080px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .setup-panel {
    position: static;
  }
}

@media (max-width: 760px) {
  .two-col,
  .contributor-row,
  .method-detail-grid {
    grid-template-columns: 1fr;
  }

  .comparison-row {
    grid-template-columns: 1fr 1fr;
  }

  .card-head,
  .contributors-head {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .hero {
    padding: 0.9rem;
  }
}