:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-2: #edf2f5;
  --ink: #17212b;
  --muted: #5c6975;
  --line: #d9e1e7;
  --accent: #0f766e;
  --accent-2: #b45309;
  --accent-3: #334155;
  --danger: #b91c1c;
  --good: #047857;
  --shadow: 0 18px 48px rgba(21, 32, 43, 0.12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
  padding: 14px clamp(16px, 3vw, 32px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-button,
.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
}

.icon-button {
  width: 40px;
  font-weight: 800;
}

.primary-action {
  padding: 0 16px;
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  font-weight: 750;
}

.secondary-action {
  padding: 0 14px;
  font-size: 0.88rem;
  font-weight: 750;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  gap: 20px;
  width: min(1520px, 100%);
  margin: 0 auto;
  padding: 20px clamp(12px, 2vw, 28px) 32px;
}

.control-panel,
.results-panel {
  min-width: 0;
}

.control-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel-section,
.results-panel,
.metrics-grid article,
.detail-card,
.empty-state,
.pipeline-stage,
.formula-box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.panel-section {
  overflow: hidden;
}

.section-title {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 18px;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 14px;
  border: 0;
  background: var(--surface);
  text-align: left;
  color: var(--ink);
}

.section-title strong,
.section-title small {
  display: block;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.section-title small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.78rem;
}

.step {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--surface-2);
  font-weight: 800;
}

.chevron {
  color: var(--muted);
  font-size: 0.82rem;
  text-align: right;
}

.panel-section.is-collapsed .section-body {
  display: none;
}

.panel-section.is-collapsed .chevron {
  transform: rotate(-90deg);
}

.section-body {
  display: grid;
  gap: 12px;
  padding: 0 14px 14px;
}

.field-label,
label span,
.range-row {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.field-label {
  margin-top: 2px;
}

.range-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

output {
  color: var(--ink);
  font-weight: 800;
}

select,
input[type="text"],
input[type="number"] {
  width: 100%;
  min-height: 40px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.segmented {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(82px, 1fr));
  gap: 6px;
}

.segmented.compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.segmented button,
.tabs button {
  min-height: 38px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 760;
}

.segmented button.is-active,
.tabs button.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.hint,
.inline-result {
  margin: 0;
  padding: 10px;
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.inline-result {
  color: var(--ink);
  font-weight: 700;
}

.custom-hardware {
  display: none;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfd;
}

.custom-hardware.is-visible {
  display: grid;
}

.two-col,
.three-col {
  display: grid;
  gap: 10px;
}

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

.three-col {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.eyebrow {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.results-panel {
  min-height: calc(100vh - 124px);
  padding: clamp(16px, 2.2vw, 26px);
  box-shadow: var(--shadow);
}

.results-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.results-header h1 {
  margin: 4px 0 6px;
  font-size: clamp(1.7rem, 2.4vw, 2.65rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.results-header p {
  margin: 0;
  color: var(--muted);
}

.status-pill {
  flex: 0 0 auto;
  padding: 7px 10px;
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.status-pill.is-warning {
  background: #fff7ed;
  color: var(--accent-2);
}

.status-pill.is-good {
  background: #ecfdf5;
  color: var(--good);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.metrics-grid article {
  min-height: 112px;
  padding: 14px;
}

.metrics-grid span,
.metrics-grid small {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
}

.metrics-grid strong {
  display: block;
  margin: 8px 0;
  font-size: clamp(1.25rem, 1.8vw, 1.75rem);
  line-height: 1.1;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.tab-panel {
  padding-top: 18px;
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 340px;
  padding: 28px;
  text-align: center;
}

.empty-state span {
  color: var(--muted);
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  gap: 16px;
}

.detail-card {
  padding: 16px;
}

.detail-card h2,
.detail-card h3 {
  margin: 0 0 8px;
}

.detail-card p {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.55;
}

.memory-bars {
  display: grid;
  gap: 8px;
}

.memory-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) 84px;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
}

.bar-track {
  position: relative;
  height: 18px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--surface-2);
}

.bar-fill {
  height: 100%;
  width: var(--fill);
  max-width: 100%;
  background: var(--accent);
}

.bar-overflow {
  position: absolute;
  top: 0;
  left: var(--hbm);
  width: var(--overflow);
  height: 100%;
  max-width: 100%;
  background: var(--accent-2);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.legend span::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 6px;
  border-radius: 2px;
  background: var(--accent);
}

.legend .orange::before {
  background: var(--accent-2);
}

.stat-list {
  display: grid;
  gap: 10px;
}

.stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

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

.stat strong {
  text-align: right;
}

.storage-stack {
  display: grid;
  height: 42px;
  grid-template-columns: var(--knowledge) var(--usage) var(--audit) var(--model);
  overflow: hidden;
  border-radius: 8px;
  background: var(--surface-2);
}

.storage-stack span:nth-child(1) {
  background: var(--accent);
}

.storage-stack span:nth-child(2) {
  background: #2563eb;
}

.storage-stack span:nth-child(3) {
  background: var(--accent-2);
}

.storage-stack span:nth-child(4) {
  background: var(--accent-3);
}

.pipeline-flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(118px, 1fr));
  gap: 10px;
}

.pipeline-stage {
  min-height: 108px;
  padding: 12px;
}

.pipeline-stage strong,
.pipeline-stage span {
  display: block;
}

.pipeline-stage span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.35;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

th,
td {
  padding: 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
}

.formula-box {
  padding: 14px;
  background: #fbfcfd;
}

.formula {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-weight: 850;
}

.formula span {
  padding: 6px 8px;
  border-radius: 8px;
  background: var(--surface-2);
}

@media (max-width: 1040px) {
  .workspace,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .results-panel {
    min-height: auto;
  }

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

@media (max-width: 700px) {
  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .topbar-actions {
    width: 100%;
  }

  .primary-action {
    flex: 1 1 auto;
  }

  .workspace {
    padding-inline: 10px;
  }

  .segmented,
  .two-col,
  .three-col,
  .metrics-grid,
  .pipeline-flow {
    grid-template-columns: 1fr;
  }

  .results-header {
    flex-direction: column;
  }

  .memory-row {
    grid-template-columns: 58px minmax(0, 1fr) 70px;
  }
}