:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --ink: #17212b;
  --muted: #66717f;
  --line: #d9e0e7;
  --green: #147d4f;
  --red: #ba2d2d;
  --amber: #a76513;
  --blue: #1f5eff;
  --navy: #111827;
}

* {
  box-sizing: border-box;
}

html,
body {
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
  isolation: isolate;
}

.sidebar {
  background: var(--navy);
  color: #f8fafc;
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  z-index: 2;
}

.brand,
.connection-card {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  display: block;
  width: 118px;
  height: 64px;
  flex: 0 0 auto;
  background: #ffffff url("./assets/detroit-dynamo-logo.jpg") center / contain no-repeat;
  border: 1px solid #415066;
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.24);
}

.brand span,
.connection-card span:last-child {
  display: block;
  color: #aeb8c6;
  font-size: 13px;
  margin-top: 2px;
}

.nav-tabs {
  display: grid;
  gap: 6px;
}

.nav-tab {
  border: 0;
  color: #cbd5e1;
  background: transparent;
  text-align: left;
  padding: 11px 12px;
  border-radius: 8px;
  cursor: pointer;
}

.nav-tab:hover,
.nav-tab.is-active {
  color: #ffffff;
  background: #243044;
}

.connection-card {
  margin-top: auto;
  padding: 14px;
  border: 1px solid #334155;
  border-radius: 8px;
}

.status-dot,
.good,
.warn {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  display: inline-block;
  background: var(--green);
}

.warn {
  background: var(--amber);
}

.main-panel {
  padding: 28px;
  padding-bottom: 332px;
  min-width: 0;
  position: relative;
  z-index: 1;
  overflow: hidden;
  background: #f4f6f8 url("./assets/detroit-skyline-bottom.jpg") center bottom / min(760px, calc(100% - 56px)) auto no-repeat;
}

.topbar,
.section-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

.top-actions {
  display: flex;
  gap: 10px;
}

.topbar-title {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.topbar-logo {
  display: block;
  width: 172px;
  height: 62px;
  flex: 0 0 auto;
  background: #ffffff url("./assets/detroit-dynamo-logo.jpg") center / contain no-repeat;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 32px rgba(23, 33, 43, 0.1);
}

.primary-button,
.icon-button,
.file-button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  padding: 10px 14px;
  cursor: pointer;
}

.primary-button {
  background: var(--blue);
  border-color: var(--blue);
  color: #ffffff;
  font-weight: 800;
}

.file-button {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  font-weight: 800;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.icon-button {
  width: 42px;
  height: 42px;
  padding: 0;
  font-size: 20px;
}

.view {
  display: none;
  position: relative;
  z-index: 1;
}

.view.is-active {
  display: block;
}

.metrics-grid,
.rules-grid,
.status-grid,
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.metric,
.rules-grid article,
.status-grid article,
.deal-table-wrap,
.inventory-table-wrap,
.inventory-import,
.toolbar,
.lookup-result,
.card,
.pipeline-column {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.metric {
  padding: 16px;
}

.metric span,
.rules-grid span,
.card span,
.status-grid p {
  color: var(--muted);
}

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 28px;
}

.toolbar {
  display: grid;
  grid-template-columns: 1.5fr 180px 220px 220px;
  gap: 14px;
  align-items: end;
  padding: 14px;
  margin: 16px 0;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

input,
select {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  background: #ffffff;
  color: var(--ink);
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 38px;
}

.toggle-row input {
  width: auto;
  min-height: auto;
}

.deal-table-wrap {
  overflow: auto;
}

.inventory-table-wrap {
  overflow: auto;
  margin-top: 14px;
}

.inventory-import {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 14px;
  margin-bottom: 14px;
}

.inventory-import strong,
.inventory-import span {
  display: block;
}

.inventory-import span,
.inventory-import p {
  color: var(--muted);
}

.inventory-import p {
  margin: 0;
}

.deal-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 980px;
}

th,
td {
  text-align: left;
  padding: 13px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0;
  background: #f8fafc;
}

.shoe-cell strong,
.shoe-cell span {
  display: block;
}

.shoe-cell span {
  color: var(--muted);
  font-size: 12px;
  margin-top: 3px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  padding: 5px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
}

.badge.buy {
  color: #075d39;
  background: #dff7ea;
}

.badge.watch {
  color: #755000;
  background: #fff0c2;
}

.badge.pass {
  color: #842121;
  background: #ffe1e1;
}

.profit-positive {
  color: var(--green);
  font-weight: 900;
}

.profit-negative {
  color: var(--red);
  font-weight: 900;
}

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

.row-actions button,
.row-actions a {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  min-height: 34px;
  padding: 7px 9px;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.lookup-grid {
  display: grid;
  grid-template-columns: 1fr 180px minmax(300px, 1.6fr);
  gap: 14px;
  align-items: end;
}

.lookup-result,
.rules-grid article,
.status-grid article,
.card,
.pipeline-column {
  padding: 16px;
}

.lookup-result {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
}

.shoe-image-frame {
  display: grid;
  place-items: center;
  min-height: 130px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  color: var(--muted);
  overflow: hidden;
}

.shoe-image-frame img {
  display: block;
  width: 100%;
  max-height: 150px;
  object-fit: contain;
}

.lookup-result strong,
.lookup-result span,
.rules-grid strong,
.rules-grid span {
  display: block;
}

.lookup-result strong {
  margin-top: 6px;
}

.rules-grid,
.status-grid,
.card-grid,
.pipeline {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rules-grid article,
.status-grid article,
.card {
  display: grid;
  gap: 8px;
}

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

.rule-summary-card {
  grid-column: span 2;
}

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

.pipeline-column h3 {
  margin: 0 0 12px;
  font-size: 15px;
}

.pipeline-item {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-top: 8px;
  background: #f8fafc;
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    padding: 16px;
  }

  .brand-logo {
    width: 112px;
    height: 54px;
  }

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

  .topbar-logo {
    width: 164px;
    height: 52px;
  }

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

  .metrics-grid,
  .toolbar,
  .lookup-grid,
  .lookup-result,
  .rules-grid,
  .status-grid,
  .card-grid,
  .pipeline {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .main-panel {
    padding: 16px;
    padding-bottom: 170px;
    background-size: calc(100% - 32px) auto;
  }

  body {
    background: var(--bg);
  }

  .brand {
    align-items: flex-start;
  }

  .brand-logo,
  .topbar-logo {
    width: 138px;
    height: 50px;
  }

  .topbar,
  .section-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .metrics-grid,
  .toolbar,
  .lookup-grid,
  .lookup-result,
  .rules-grid,
  .status-grid,
  .card-grid,
  .pipeline,
  .nav-tabs {
    grid-template-columns: 1fr;
  }
}