:root {
  --bg: #101113;
  --surface: #17191c;
  --surface-raised: #1d2024;
  --surface-soft: #24272c;
  --border: #30343a;
  --border-strong: #454a52;
  --text: #f3f4f5;
  --muted: #a7abb2;
  --quiet: #757a83;
  --red: #ed1c24;
  --red-dark: #b91118;
  --green: #4ecb71;
  --amber: #f0b33b;
  --danger: #ff6b61;
  --yellow: #f2d34f;
  --sidebar: 248px;
  --radius: 6px;
  --font: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { color-scheme: dark; background: var(--bg); }
body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--text); font: 14px/1.5 var(--font); }
button, input, select, textarea { font: inherit; }
button { letter-spacing: 0; }
.is-hidden { display: none !important; }

.sidebar {
  position: fixed; inset: 0 auto 0 0; z-index: 20; width: var(--sidebar);
  display: flex; flex-direction: column; padding: 22px 16px 16px;
  background: #0a0b0c; border-right: 1px solid var(--border);
}
.brand { display: flex; align-items: center; min-height: 58px; padding: 0 4px 20px; }
.brand-logo { display: block; width: 100%; height: auto; max-height: 58px; object-fit: contain; }
.brand-mark { display: grid; place-items: center; width: 36px; height: 30px; background: var(--red); color: #fff; font-weight: 800; }
.brand-name { font-size: 13px; font-weight: 750; letter-spacing: 0; }
.nav-list { display: grid; gap: 4px; }
.nav-button {
  width: 100%; min-height: 42px; padding: 0 12px; border: 1px solid transparent;
  border-radius: 4px; background: transparent; color: var(--muted); text-align: left; cursor: pointer;
}
.nav-button:hover, .nav-button:focus-visible { background: var(--surface); color: var(--text); outline: none; }
.nav-button.is-active { background: var(--surface-raised); border-color: var(--border); color: var(--text); box-shadow: inset 3px 0 var(--red); }
.sidebar-foot { margin-top: auto; padding-top: 18px; border-top: 1px solid var(--border); }
.sidebar-foot p { margin: 10px 12px 0; color: var(--quiet); font-size: 11px; line-height: 1.6; }
.nav-logout { color: var(--muted); }

.app-shell { min-height: 100vh; margin-left: var(--sidebar); }
.topbar {
  position: sticky; top: 0; z-index: 10; min-height: 68px; padding: 12px 28px;
  display: flex; align-items: center; gap: 14px; background: rgba(16,17,19,.96);
  border-bottom: 1px solid var(--border); backdrop-filter: blur(10px);
}
.topbar-title, .eyebrow { margin: 0; }
.topbar-identity { display: flex; align-items: center; gap: 14px; min-width: 0; }
.topbar-logo { display: block; width: 190px; height: 46px; object-fit: contain; flex: 0 0 auto; }
.eyebrow { color: var(--quiet); font-size: 10px; font-weight: 700; letter-spacing: 0; }
.topbar-title { font-size: 15px; font-weight: 650; }
.connection-state { margin-left: auto; color: var(--green); font-size: 12px; }
.connection-state::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: currentColor; }
.connection-state.is-error { color: var(--danger); }
.icon-button { display: none; min-width: 44px; min-height: 38px; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); color: var(--text); cursor: pointer; }

.workspace { width: min(1440px, 100%); padding: 30px 32px 64px; outline: none; }
.page-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 24px; }
.page-title { margin: 0; font-size: 25px; line-height: 1.15; font-weight: 720; }
.page-subtitle { max-width: 720px; margin: 7px 0 0; color: var(--muted); }
.eyebrow-page { margin: 0 0 7px; color: var(--red); font-size: 11px; font-weight: 800; letter-spacing: 0; text-transform: uppercase; }
.page-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.summary-grid { display: grid; grid-template-columns: repeat(4, minmax(150px, 1fr)); gap: 12px; margin-bottom: 20px; }
.summary-tile { min-height: 108px; padding: 16px; background: var(--surface); border: 1px solid var(--border); border-top: 2px solid var(--border-strong); }
.summary-label { margin: 0; color: var(--muted); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0; }
.summary-value { margin: 10px 0 0; font-size: 28px; line-height: 1; font-weight: 750; }
.summary-note { margin: 9px 0 0; color: var(--quiet); font-size: 11px; }

.content-grid { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(280px, .8fr); gap: 16px; align-items: start; }
.content-grid.equal { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stack { display: grid; gap: 16px; }
.panel { min-width: 0; padding: 18px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.panel-header { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 14px; }
.panel-title { margin: 0; font-size: 13px; font-weight: 720; }
.panel-kicker { margin: 3px 0 0; color: var(--quiet); font-size: 11px; }
.panel-accent { border-top: 3px solid var(--red); }

.rider-list { display: grid; gap: 1px; background: var(--border); border: 1px solid var(--border); }
.rider-row { width: 100%; min-height: 78px; padding: 14px 16px; display: grid; grid-template-columns: minmax(180px, 1fr) repeat(3, minmax(85px, .35fr)) 28px; align-items: center; gap: 14px; border: 0; background: var(--surface); color: var(--text); text-align: left; cursor: pointer; }
.rider-row:hover, .rider-row:focus-visible { position: relative; background: var(--surface-raised); outline: 2px solid var(--border-strong); outline-offset: -2px; }
.rider-name { display: block; font-weight: 700; }
.rider-email { display: block; margin-top: 2px; color: var(--quiet); font-size: 11px; }
.metric-label { display: block; color: var(--quiet); font-size: 10px; text-transform: uppercase; letter-spacing: 0; }
.metric-value { display: block; margin-top: 3px; font-weight: 650; }
.row-arrow { color: var(--quiet); font-size: 20px; }

.status-pill { display: inline-flex; align-items: center; min-height: 24px; padding: 2px 8px; border: 1px solid var(--border-strong); border-radius: 999px; color: var(--muted); font-size: 11px; }
.status-pill.good { color: var(--green); border-color: rgba(78,203,113,.35); background: rgba(78,203,113,.08); }
.status-pill.warn { color: var(--amber); border-color: rgba(240,179,59,.35); background: rgba(240,179,59,.08); }
.status-pill.bad { color: var(--danger); border-color: rgba(255,107,97,.35); background: rgba(255,107,97,.08); }

.data-table-wrap { overflow-x: auto; border: 1px solid var(--border); }
.data-table { width: 100%; border-collapse: collapse; min-width: 680px; }
.data-table th { padding: 10px 12px; background: #111315; color: var(--quiet); font-size: 10px; letter-spacing: 0; text-transform: uppercase; text-align: left; }
.data-table td { padding: 13px 12px; border-top: 1px solid var(--border); }
.data-table tbody tr[data-action] { cursor: pointer; }
.data-table tbody tr[data-action]:hover { background: var(--surface-raised); }

.button { min-height: 40px; padding: 0 14px; border: 1px solid var(--border-strong); border-radius: 4px; background: var(--surface-soft); color: var(--text); font-weight: 650; cursor: pointer; }
.button:hover, .button:focus-visible { border-color: var(--muted); outline: none; }
.button.primary { background: var(--red); border-color: var(--red); color: #fff; }
.button.primary:hover { background: var(--red-dark); }
.button.subtle { background: transparent; }
.button.danger { color: var(--danger); }
.button.coming-soon { color: var(--quiet); border-style: dashed; cursor: not-allowed; opacity: .75; }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.field { display: grid; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { color: var(--muted); font-size: 11px; font-weight: 650; }
.field input, .field select, .field textarea { width: 100%; min-height: 42px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 4px; background: #0f1012; color: var(--text); }
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--red); outline: 2px solid rgba(237,28,36,.18); }
.checkbox-field { display: flex; align-items: flex-start; gap: 9px; color: var(--muted); }
.checkbox-field input { margin-top: 3px; }
.field .checkbox-field input { width: auto; min-height: 0; }
.choice-grid { display: grid; grid-template-columns: repeat(4, minmax(100px, 1fr)); gap: 8px 16px; }
.choice-list { display: grid; gap: 9px; }
.form-actions { display: flex; align-items: center; gap: 10px; grid-column: 1 / -1; padding-top: 4px; }
.message { min-height: 20px; margin: 0; font-size: 12px; }
.message.error, .text-bad { color: var(--danger); }
.message.success, .text-good { color: var(--green); }
.text-warn { color: var(--amber); }
.text-muted { color: var(--muted); }

.verdict-lead { margin: 0 0 16px; font-size: 19px; line-height: 1.45; font-weight: 620; }
.verdict-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--border); }
.verdict-item { min-height: 120px; padding: 15px; border-right: 1px solid var(--border); }
.verdict-item:last-child { border-right: 0; }
.verdict-label { margin: 0 0 10px; color: var(--quiet); font-size: 10px; font-weight: 750; letter-spacing: 0; text-transform: uppercase; }
.verdict-item p:last-child { margin: 0; }
.detail-list { display: grid; }
.detail-row { display: grid; grid-template-columns: minmax(130px,.55fr) 1fr; gap: 18px; padding: 11px 0; border-bottom: 1px solid var(--border); }
.detail-row:last-child { border-bottom: 0; }
.detail-key { color: var(--quiet); font-size: 11px; }
.detail-value { margin: 0; }

.chart { width: 100%; aspect-ratio: 2.4 / 1; min-height: 190px; background: #0e0f11; border: 1px solid var(--border); }
.chart-grid { stroke: #292d32; stroke-width: 1; }
.chart-label { fill: #858a93; font: 10px var(--font); }
.chart-line { fill: none; stroke-width: 2.5; }
.chart-dot { stroke: #0e0f11; stroke-width: 2; }
.chart-legend { display: flex; gap: 14px; margin-top: 9px; color: var(--muted); font-size: 11px; }
.legend-swatch { width: 9px; height: 9px; display: inline-block; margin-right: 5px; }
.legend-swatch.red { background: var(--red); }
.legend-swatch.green { background: var(--green); }
.legend-swatch.yellow { background: var(--yellow); }

.map-frame { width: 100%; aspect-ratio: 16 / 7; min-height: 260px; background: #0e0f11; border: 1px solid var(--border); }
.empty-state { min-height: 220px; display: grid; place-items: center; padding: 34px; border: 1px dashed var(--border-strong); color: var(--muted); text-align: center; }
.loading { min-height: 180px; display: grid; place-items: center; color: var(--muted); }
.loading::before { content: ""; width: 22px; height: 22px; border: 2px solid var(--border); border-top-color: var(--red); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.login-layout { min-height: 100vh; display: grid; grid-template-columns: minmax(420px,1.05fr) minmax(420px,.95fr); margin: -30px -32px -64px; }
.login-brand { padding: 48px; display: flex; flex-direction: column; align-items: center; justify-content: center; background: #f7f7f7; border-right: 1px solid var(--border); }
.login-logo { display: block; width: min(680px, 100%); height: auto; object-fit: contain; }
.login-copy { width: min(680px, 100%); margin: 30px 0 0; color: #25272b; font-size: 18px; line-height: 1.5; text-align: center; }
.login-panel { display: grid; place-items: center; padding: 40px; }
.login-form { width: min(440px, 100%); }
.login-form h2 { margin: 28px 0 22px; font-size: 24px; }
.login-form > p { margin: 0 0 24px; color: var(--muted); }
.login-form .field { margin-bottom: 13px; }
.login-actions { display: grid; gap: 8px; margin-top: 18px; }
.role-selector { display: grid; grid-template-columns: 1fr 1fr minmax(130px, 1.25fr); min-height: 44px; border: 1px solid var(--border-strong); }
.role-option { min-width: 0; padding: 8px 10px; border: 0; border-right: 1px solid var(--border-strong); background: transparent; color: var(--muted); cursor: pointer; }
.role-option:last-child { border-right: 0; }
.role-option:hover, .role-option:focus-visible { background: var(--surface-raised); color: var(--text); outline: 2px solid #fff; outline-offset: -3px; }
.role-option.is-active { background: var(--red); color: #fff; font-weight: 700; }
.role-option.coming-soon { color: var(--quiet); background: var(--surface-soft); cursor: not-allowed; }
.rider-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.registration-fields { display: grid; gap: 13px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); }

.science-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.science-item { min-height: 150px; padding: 17px; border: 1px solid var(--border); background: var(--surface); }
.science-item h3 { margin: 0 0 10px; font-size: 13px; }
.science-item p { margin: 0; color: var(--muted); }
.science-item a { color: var(--yellow); }

.nav-scrim { position: fixed; inset: 0; z-index: 15; background: rgba(0,0,0,.64); }

@media (max-width: 1100px) {
  .summary-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .content-grid, .content-grid.equal { grid-template-columns: 1fr; }
  .rider-row { grid-template-columns: minmax(180px,1fr) repeat(2,minmax(85px,.35fr)) 28px; }
  .rider-row .optional-metric { display: none; }
}

@media (max-width: 800px) {
  .sidebar { transform: translateX(-100%); transition: transform .18s ease; }
  .sidebar.is-open { display: flex !important; transform: translateX(0); }
  .app-shell { margin-left: 0; }
  .icon-button { display: inline-grid; place-items: center; }
  .topbar { padding: 10px 16px; }
  .topbar-logo { width: 160px; height: 40px; }
  .workspace { padding: 22px 16px 48px; }
  .page-header { align-items: flex-start; flex-direction: column; }
  .summary-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .rider-row { grid-template-columns: 1fr 70px 22px; }
  .rider-row .optional-metric, .rider-row .secondary-metric { display: none; }
  .form-grid, .science-list, .verdict-grid { grid-template-columns: 1fr; }
  .choice-grid { grid-template-columns: repeat(2, minmax(100px, 1fr)); }
  .verdict-item { border-right: 0; border-bottom: 1px solid var(--border); }
  .verdict-item:last-child { border-bottom: 0; }
  .login-layout { min-height: calc(100vh - 70px); grid-template-columns: 1fr; margin: -22px -16px -48px; }
  .login-brand { min-height: 210px; padding: 28px 24px; border-right: 0; border-bottom: 1px solid var(--border); }
  .login-logo { width: min(560px, 100%); }
  .login-copy { margin-top: 20px; font-size: 16px; }
  .login-panel { padding: 30px 20px 46px; }
}

@media (max-width: 480px) {
  .summary-grid { grid-template-columns: 1fr; }
  .summary-tile { min-height: 90px; }
  .detail-row { grid-template-columns: 1fr; gap: 3px; }
  .connection-state { display: none; }
  .topbar-identity { gap: 8px; }
  .topbar-logo { width: 130px; height: 36px; }
  .topbar-title { max-width: 110px; font-size: 12px; line-height: 1.2; }
  .role-selector { grid-template-columns: 1fr 1fr; }
  .role-option.coming-soon { grid-column: 1 / -1; min-height: 40px; border-top: 1px solid var(--border-strong); }
  .role-option:nth-child(2) { border-right: 0; }
  .rider-summary { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}