:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #17202a;
  --muted: #637381;
  --line: #d9e2ec;
  --brand: #0f766e;
  --accent: #b45309;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f172a;
  --panel: #1e293b;
  --text: #f8fafc;
  --muted: #94a3b8;
  --line: #334155;
  --brand: #2dd4bf;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.topbar {
  align-items: center;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  display: flex;
  height: 64px;
  justify-content: space-between;
  padding: 0 28px;
}

.brand {
  color: var(--brand);
  font-size: 22px;
  font-weight: 800;
}

nav {
  align-items: center;
  display: flex;
  gap: 18px;
}

.inline-form {
  display: inline;
}

button,
.button {
  background: var(--brand);
  border: 0;
  border-radius: 6px;
  color: #fff;
  cursor: pointer;
  display: inline-block;
  font: inherit;
  padding: 10px 14px;
}

.secondary-button {
  background: rgba(255, 255, 255, .16);
  border: 1px solid rgba(255, 255, 255, .42);
}

.site-hero {
  background-position: center;
  background-size: cover;
  color: #fff;
  min-height: 620px;
  position: relative;
}

.site-hero-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 620px;
  max-width: 780px;
  padding: 72px 64px;
}

.site-hero h1 {
  font-size: 52px;
  max-width: 760px;
}

.site-hero .lead {
  color: rgba(255, 255, 255, .86);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
}

.stat-strip {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stat-strip div {
  padding: 28px 64px;
}

.stat-strip strong {
  display: block;
  font-size: 34px;
}

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

.site-section {
  padding: 72px 64px;
}

.section-head {
  max-width: 760px;
  margin-bottom: 28px;
}

h2 {
  font-size: 34px;
  line-height: 1.2;
  margin: 0 0 14px;
}

h3 {
  font-size: 20px;
  margin: 0 0 10px;
}

.feature-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-grid article {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}

.feature-grid p,
.section-copy,
.driver-band p,
.cta-section p {
  color: var(--muted);
  line-height: 1.65;
}

.split-section {
  align-items: start;
  background: var(--panel);
  display: grid;
  gap: 48px;
  grid-template-columns: 1fr 1fr;
}

.steps {
  display: grid;
  gap: 14px;
}

.steps div {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 16px;
  grid-template-columns: 72px 1fr;
  padding: 18px 0;
}

.steps span {
  color: var(--brand);
  font-size: 28px;
  font-weight: 800;
}

.steps p {
  margin: 0;
}

.driver-band {
  align-items: center;
  background: #102a43;
  color: #fff;
  display: flex;
  justify-content: space-between;
  gap: 32px;
}

.driver-band div {
  max-width: 780px;
}

.driver-band p {
  color: rgba(255, 255, 255, .76);
}

.cta-section {
  align-items: center;
  display: flex;
  justify-content: space-between;
  gap: 32px;
}

.cta-section div {
  max-width: 780px;
}

.hero {
  align-items: center;
  display: grid;
  gap: 32px;
  grid-template-columns: 1.4fr .8fr;
  min-height: calc(100vh - 64px);
  padding: 64px;
}

.eyebrow {
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
}

h1 {
  font-size: 38px;
  line-height: 1.15;
  margin: 0 0 14px;
}

.lead {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
  max-width: 700px;
}

.metric-panel,
.cards {
  display: grid;
  gap: 14px;
}

.metric-panel div,
.cards div,
.auth-box,
.form-panel,
.form-grid {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
}

.metric-panel strong,
.cards strong {
  display: block;
  font-size: 30px;
}

.metric-panel span,
.cards span {
  color: var(--muted);
}

.dashboard-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: calc(100vh - 64px);
}

.sidebar {
  background: #102a43;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px;
}

.sidebar a {
  border-radius: 6px;
  color: #e6f0f4;
  padding: 12px;
}

.sidebar a:hover {
  background: rgba(255, 255, 255, .12);
}

.dashboard-content {
  padding: 28px;
}

.page-head {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin-bottom: 20px;
}

.cards {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 28px;
}

.role-cards div {
  border-left: 4px solid var(--brand);
}

table {
  background: var(--panel);
  border-collapse: collapse;
  border: 1px solid var(--line);
  width: 100%;
}

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

th {
  background: var(--bg);
  color: var(--text);
}

.auth-box {
  margin: 60px auto;
  max-width: 420px;
}

input,
select,
textarea {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  display: block;
  margin-top: 6px;
  padding: 10px;
  width: 100%;
}

.form-grid {
  max-width: 900px;
}

@media (max-width: 800px) {
  .topbar {
    align-items: flex-start;
    height: auto;
    gap: 12px;
    padding: 16px 20px;
  }

  nav {
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
  }

  .site-hero,
  .site-hero-inner {
    min-height: 560px;
  }

  .site-hero-inner {
    padding: 48px 20px;
  }

  .site-hero h1 {
    font-size: 38px;
  }

  .stat-strip,
  .feature-grid,
  .split-section {
    grid-template-columns: 1fr;
  }

  .stat-strip div,
  .site-section {
    padding: 28px 20px;
  }

  .driver-band,
  .cta-section {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .dashboard-shell {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 32px 20px;
  }

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

  .sidebar {
    flex-direction: row;
    overflow-x: auto;
  }
}