* { box-sizing: border-box; }
html { color-scheme: light; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #172033;
  background: #f5f7fb;
}
a { color: #195f8f; text-decoration: none; }
button, input, select, textarea, .button { font: inherit; }
.button, button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid #c8d2df;
  border-radius: 6px;
  background: #fff;
  color: #172033;
  cursor: pointer;
}
.button.primary, button.primary { background: #0f766e; border-color: #0f766e; color: #fff; }
.button.ghost { background: #f8fafc; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 22px;
  min-height: 64px;
  padding: 10px 28px;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid #dbe3ee;
  backdrop-filter: blur(10px);
}
.brand { font-weight: 800; color: #122032; min-width: 96px; }
.main-nav, .console-nav { display: flex; gap: 16px; align-items: center; flex: 1; overflow-x: auto; }
.main-nav a, .console-nav a { color: #40516a; white-space: nowrap; }
.main-nav a.active, .console-nav a.active { color: #0f766e; font-weight: 700; }
.actions { display: flex; gap: 8px; align-items: center; }
.hero {
  min-height: 520px;
  display: grid;
  grid-template-columns: minmax(300px, 1fr) minmax(320px, 520px);
  gap: 42px;
  align-items: center;
  padding: 64px 7vw 44px;
  background: linear-gradient(120deg, #f9fbff 0%, #e8f5f1 52%, #fff7e8 100%);
}
.eyebrow { color: #0f766e; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; font-size: 12px; }
h1 { margin: 0 0 20px; font-size: clamp(40px, 7vw, 78px); line-height: .98; letter-spacing: 0; }
h2 { margin: 0 0 14px; font-size: 28px; letter-spacing: 0; }
h3 { margin: 0 0 10px; font-size: 18px; letter-spacing: 0; }
p { color: #536278; line-height: 1.7; }
.hero-copy p:not(.eyebrow) { max-width: 740px; font-size: 18px; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
.product-panel, article, .panel, .route-card, .state-stack div, table, pre, .console-main, .auth-card {
  background: #fff;
  border: 1px solid #dce4ee;
  border-radius: 8px;
}
.product-panel { padding: 18px; display: grid; gap: 10px; box-shadow: 0 24px 60px rgba(20, 34, 54, .16); }
.panel-row, .state-stack div, .summary-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px;
  border-radius: 6px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
}
.panel-row span, .state-stack span, .summary-row span { color: #607086; }
.band { padding: 46px 7vw; }
.section-head { max-width: 780px; margin-bottom: 18px; }
.feature-grid, .route-grid, .metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
article, .route-card, .auth-card { padding: 18px; }
article p, .route-card p { margin-bottom: 14px; }
.split { display: grid; grid-template-columns: minmax(280px, .85fr) minmax(300px, 1.15fr); gap: 24px; align-items: start; }
.state-stack { display: grid; gap: 10px; }
.page-head { padding: 42px 7vw 18px; background: #fff; border-bottom: 1px solid #dbe3ee; }
.page-head p { max-width: 820px; }
.route-grid { padding: 24px 7vw 46px; }
.auth-layout {
  min-height: calc(100vh - 64px);
  display: grid;
  grid-template-columns: minmax(280px, 420px) 1fr;
  gap: 34px;
  align-items: start;
  padding: 48px 7vw;
}
.auth-card { display: grid; gap: 12px; }
label { display: grid; gap: 6px; color: #3f4f65; }
input, select, textarea {
  width: 100%;
  min-height: 40px;
  padding: 10px 12px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  background: #fff;
  color: #172033;
}
textarea { min-height: 140px; resize: vertical; }
.form-note, .empty-state, .error-state { border-radius: 6px; padding: 12px; font-size: 14px; }
.form-note { background: #eef8f6; color: #0f625c; border: 1px solid #bfe1dc; }
.empty-state { background: #f8fafc; color: #526176; border: 1px solid #dde6f0; }
.error-state { background: #fff7ed; color: #9a3412; border: 1px solid #fed7aa; }
.console-shell { display: grid; grid-template-columns: 230px 1fr; min-height: calc(100vh - 64px); }
.console-sidebar {
  padding: 18px 12px;
  background: #142033;
  color: #dce7f5;
}
.console-sidebar a {
  display: block;
  padding: 10px 12px;
  border-radius: 6px;
  color: #dce7f5;
  margin-bottom: 4px;
}
.console-sidebar a.active, .console-sidebar a:hover { background: #203653; }
.console-main { margin: 24px; padding: 22px; min-width: 0; }
.metric-grid { margin: 14px 0; }
.metric-grid article { min-height: 92px; }
.metric-grid strong { display: block; font-size: 24px; margin-bottom: 6px; }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0; }
table { width: 100%; border-collapse: collapse; overflow: hidden; }
th, td { padding: 13px 14px; border-bottom: 1px solid #e5ebf3; text-align: left; vertical-align: top; }
th { color: #526176; background: #f8fafc; font-weight: 700; }
pre { padding: 16px; color: #dce9ff; background: #172033; overflow: auto; }
.footer {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  padding: 24px 7vw;
  border-top: 1px solid #dbe3ee;
  color: #64748b;
  background: #fff;
}
@media (max-width: 920px) {
  .topbar { flex-wrap: wrap; padding: 10px 16px; }
  .main-nav, .console-nav { order: 3; width: 100%; }
  .hero, .split, .auth-layout, .console-shell { grid-template-columns: 1fr; }
  .feature-grid, .route-grid, .metric-grid { grid-template-columns: 1fr; }
  .console-sidebar { display: flex; overflow-x: auto; gap: 6px; padding: 10px 12px; }
  .console-sidebar a { white-space: nowrap; margin: 0; }
  .console-main { margin: 14px; padding: 16px; }
  table { display: block; overflow-x: auto; white-space: nowrap; }
}