@import url("https://fonts.googleapis.com/css2?family=Instrument+Sans:wght@400;500;600;700;800&display=swap");

:root {
  --graphite: #1f242a;
  --warm-white: #f6f4ef;
  --relay-teal: #2f6b73;
  --mineral-silver: #a6b6c3;
  --stone: #d8d1c6;
  --deep-admiral: #27395a;
  --success: #2f7a58;
  --warning: #b1711a;
  --danger: #9a454d;
  --surface: #fffefb;
  --surface-soft: #f2efe8;
  --line: rgba(31, 36, 42, 0.12);
  --line-strong: rgba(31, 36, 42, 0.24);
  --shadow: 0 16px 34px rgba(31, 36, 42, 0.08);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--warm-white);
  color: var(--graphite);
  font-family: "Instrument Sans", "Segoe UI", sans-serif;
  letter-spacing: 0;
}

button,
a,
input,
select {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(47, 107, 115, 0.35);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 20;
  transform: translateY(-150%);
  padding: 8px 10px;
  border-radius: var(--radius);
  background: var(--graphite);
  color: var(--warm-white);
  font-weight: 800;
}

.skip-link:focus {
  transform: translateY(0);
}

.demo-shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 16px;
}

.demo-app {
  display: grid;
  gap: 12px;
}

.demo-header,
.control-strip,
.score-panel,
.catalog-panel,
.detail-panel,
.review-panel,
.boundary-panel,
.boot-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.demo-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 14px 16px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-lockup img {
  width: 112px;
  height: auto;
  flex: 0 0 auto;
}

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

.eyebrow,
.metric-label,
.section-kicker,
.row-label,
.boundary-label {
  margin: 0;
  color: #596571;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.brand-copy h1 {
  margin: 2px 0 0;
  font-size: 1.28rem;
  line-height: 1.16;
  letter-spacing: 0;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.text-link,
.button-link {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-weight: 800;
  text-decoration: none;
}

.text-link {
  color: var(--relay-teal);
}

.button-link {
  padding: 0 12px;
  background: var(--relay-teal);
  color: var(--warm-white);
}

.control-strip {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(220px, 0.8fr);
  gap: 12px;
  padding: 12px;
}

.control-group {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.segmented-control,
.filter-control {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.segmented-control button,
.filter-control button,
.row-select {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  color: var(--graphite);
  cursor: pointer;
  font-weight: 800;
}

.segmented-control button,
.filter-control button {
  padding: 0 10px;
}

.segmented-control button[aria-pressed="true"],
.filter-control button[aria-pressed="true"] {
  border-color: var(--relay-teal);
  background: rgba(47, 107, 115, 0.12);
  color: #1f555d;
}

.score-grid {
  display: grid;
  grid-template-columns: 220px repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.score-panel {
  display: grid;
  gap: 10px;
  padding: 14px;
}

.score-value {
  font-size: 3rem;
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0;
}

.score-meter {
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(166, 182, 195, 0.32);
}

.score-meter span {
  display: block;
  width: var(--score-width);
  height: 100%;
  border-radius: inherit;
  background: var(--relay-teal);
}

.metric-tile {
  display: grid;
  gap: 6px;
  min-height: 112px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.metric-tile strong {
  font-size: 1.7rem;
  line-height: 1;
}

.metric-tile p {
  margin: 0;
  color: #596571;
  line-height: 1.42;
}

.catalog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.82fr);
  gap: 12px;
  align-items: start;
}

.catalog-panel,
.detail-panel,
.review-panel,
.boundary-panel,
.boot-panel {
  padding: 14px;
}

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

.section-head h2,
.detail-panel h2,
.review-panel h2,
.boundary-panel h2,
.boot-panel h1 {
  margin: 2px 0 0;
  font-size: 1.08rem;
  line-height: 1.2;
  letter-spacing: 0;
}

.catalog-table {
  display: grid;
  gap: 6px;
}

.catalog-head,
.catalog-row {
  display: grid;
  grid-template-columns: minmax(180px, 1.6fr) 108px 112px 128px 108px;
  gap: 8px;
  align-items: center;
}

.catalog-head {
  padding: 0 8px 4px;
  color: #596571;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.catalog-row {
  width: 100%;
  min-height: 66px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  color: var(--graphite);
  text-align: left;
  cursor: pointer;
}

.catalog-row[aria-selected="true"] {
  border-color: var(--relay-teal);
  box-shadow: inset 4px 0 0 var(--relay-teal);
}

.product-title {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.product-title strong,
.row-cell,
.detail-copy,
.packet-line,
.boundary-copy {
  overflow-wrap: anywhere;
}

.product-title span,
.row-cell small {
  color: #596571;
}

.status-pill {
  width: fit-content;
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0 9px;
  font-size: 0.78rem;
  font-weight: 800;
}

.status-pass {
  background: rgba(47, 122, 88, 0.12);
  color: var(--success);
}

.status-warning {
  background: rgba(177, 113, 26, 0.14);
  color: #805114;
}

.status-blocker {
  background: rgba(154, 69, 77, 0.14);
  color: #7e3740;
}

.side-stack {
  display: grid;
  gap: 12px;
}

.detail-panel,
.review-panel,
.boundary-panel {
  display: grid;
  gap: 12px;
}

.detail-title {
  display: grid;
  gap: 4px;
}

.detail-title strong {
  font-size: 1.22rem;
  line-height: 1.18;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.detail-item,
.packet-line,
.boundary-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
  padding: 10px;
}

.detail-item {
  display: grid;
  gap: 4px;
}

.detail-item span {
  color: #596571;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.detail-item strong {
  line-height: 1.3;
}

.packet-list,
.boundary-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.packet-line {
  display: grid;
  gap: 4px;
}

.packet-line strong,
.boundary-label {
  color: var(--graphite);
}

.boundary-item {
  display: grid;
  gap: 5px;
}

.cta-panel {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--graphite);
  color: var(--warm-white);
}

.cta-panel p {
  margin: 0;
  color: rgba(246, 244, 239, 0.78);
  line-height: 1.45;
}

.cta-panel .button-link {
  width: fit-content;
  background: var(--warm-white);
  color: var(--graphite);
}

.empty-state {
  padding: 18px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface-soft);
}

@media (prefers-reduced-motion: no-preference) {
  .catalog-row,
  .segmented-control button,
  .filter-control button,
  .button-link {
    transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
  }

  .catalog-row:hover,
  .segmented-control button:hover,
  .filter-control button:hover,
  .button-link:hover {
    transform: translateY(-1px);
  }
}

@media (max-width: 1100px) {
  .score-grid,
  .catalog-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .demo-shell {
    padding: 10px;
  }

  .demo-header,
  .control-strip {
    grid-template-columns: 1fr;
  }

  .header-actions {
    justify-content: flex-start;
  }

  .catalog-head {
    display: none;
  }

  .catalog-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .row-cell {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: center;
  }

  .row-cell::before {
    content: attr(data-label);
    color: #596571;
    font-size: 0.74rem;
    font-weight: 800;
    text-transform: uppercase;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }

  .score-value {
    font-size: 2.4rem;
  }
}