:root {
  --electric-navy: #071a33;
  --electric-navy-soft: #102a4c;
  --electric-yellow: #ffd43b;
  --electric-yellow-dark: #e5b800;
  --surface: #ffffff;
  --page: #f3f6fa;
  --ink: #10233e;
  --muted: #637189;
}

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

.site-header,
.hero-section {
  background: var(--electric-navy);
  color: #fff;
}

.site-header { border-bottom: 1px solid rgba(255,255,255,.09); }
.site-header .navbar { padding-inline: 1rem; }
.navbar-brand { font-weight: 800; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: .7rem; background: var(--electric-yellow); color: var(--electric-navy); }
.hero-section { background-image: radial-gradient(circle at 85% 20%, rgba(255,212,59,.2), transparent 28rem); padding-bottom: 3.5rem; }
.hero-section .lead { color: #c9d4e2; max-width: 48rem; }
.hero-calculator-link { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; max-width: 58rem; margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid rgba(255,255,255,.14); }
.hero-calculator-link p { max-width: 43rem; color: #dce5ef; font-size: .95rem; }
.eyebrow { color: var(--electric-yellow); font-size: .78rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.app-shell { margin-top: -2.5rem; padding-bottom: 2rem; }

.card { border-radius: 1.1rem; }
.filter-card { position: relative; z-index: 3; }
.form-label { font-size: .78rem; color: var(--muted); font-weight: 750; text-transform: uppercase; letter-spacing: .05em; }
.form-control, .form-select { min-height: 3rem; border-color: #d8e0ea; border-radius: .75rem; }
.form-control:focus, .form-select:focus { border-color: var(--electric-yellow-dark); box-shadow: 0 0 0 .22rem rgba(255,212,59,.24); }
.btn { border-radius: .75rem; font-weight: 700; min-height: 2.75rem; }
.btn-electric { color: var(--electric-navy); background: var(--electric-yellow); border-color: var(--electric-yellow); }
.btn-electric:hover { color: var(--electric-navy); background: #ffdf68; border-color: #ffdf68; transform: translateY(-1px); }
.btn-outline-navy { color: var(--electric-navy); border-color: #b8c4d3; }
.btn-outline-navy:hover { color: #fff; background: var(--electric-navy); border-color: var(--electric-navy); }

.chart-wrap { position: relative; height: 26rem; }
.chart-wrap-small { height: 19rem; }
.chart-type-select { width: auto; min-width: 10.5rem; min-height: 2.75rem; font-weight: 700; color: var(--electric-navy); }
.chart-resolution { min-height: 1.25rem; color: #7a8797; font-size: .78rem; font-weight: 650; }
.metric-card { padding: 1.35rem; border-radius: 1rem; color: #fff; background: linear-gradient(145deg, var(--electric-navy), var(--electric-navy-soft)); box-shadow: 0 .5rem 1.5rem rgba(7,26,51,.13); }
.metric-card span { display: block; color: #b9c8da; font-size: .82rem; margin-bottom: .65rem; }
.metric-card strong { color: var(--electric-yellow); font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
.stat-list { margin: 0; }
.stat-list div { display: flex; justify-content: space-between; gap: 1.5rem; padding: .78rem 0; border-bottom: 1px solid #e8edf3; }
.stat-list div:last-child { border-bottom: 0; }
.stat-list dt { color: var(--muted); font-weight: 500; }
.stat-list dd { margin: 0; text-align: right; font-weight: 750; }

.date-input { font-variant-numeric: tabular-nums; }
.selection-count { color: var(--muted); font-size: .85rem; font-weight: 700; }
.vat-control { display: flex; align-items: center; gap: .6rem; padding: .45rem .7rem; border: 1px solid #d8e0ea; border-radius: .8rem; background: #f8fafc; }
.vat-control small { color: var(--muted); white-space: nowrap; }
.vat-control .form-check-input { cursor: pointer; border-color: #9eacbe; }
.vat-control .form-check-input:checked { background-color: var(--electric-yellow-dark); border-color: var(--electric-yellow-dark); }
.vat-control .form-check-input:focus { border-color: var(--electric-yellow-dark); box-shadow: 0 0 0 .2rem rgba(255,212,59,.22); }
.hour-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: .45rem; }
.hour-button { display: flex; align-items: center; justify-content: center; min-height: 2.65rem; padding: .55rem .25rem; border: 1px solid #d8e0ea; background: #fff; color: var(--electric-navy); font-size: 1.05rem; font-weight: 800; line-height: 1; }
.btn-check:checked + .hour-button { color: var(--electric-navy); background: var(--electric-yellow); border-color: var(--electric-yellow-dark); box-shadow: 0 .25rem .7rem rgba(229,184,0,.2); }
.btn-check:focus + .hour-button { box-shadow: 0 0 0 .22rem rgba(255,212,59,.25); }
.filter-error { color: #b42335; font-size: .9rem; font-weight: 650; }
.eyebrow-dark { color: #9b7500; }
.long-stat-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 2rem; margin: 0; }
.long-stat-grid div { display: flex; justify-content: space-between; gap: 1rem; padding: .9rem 0; border-bottom: 1px solid #e8edf3; }
.long-stat-grid dt { color: var(--muted); font-weight: 500; }
.long-stat-grid dd { margin: 0; text-align: right; font-weight: 750; }
.export-card { overflow: hidden; background: linear-gradient(110deg, #fff 65%, #fff8d6); }
.price-search-card { overflow: hidden; }
.observation-filters .form-control,
.observation-filters .input-group-text { min-height: 2.75rem; }
.price-input-group .form-control { border-radius: .75rem 0 0 .75rem; }
.price-input-group .input-group-text { border-color: #d8e0ea; border-radius: 0 .75rem .75rem 0; background: #f8fafc; color: var(--muted); font-size: .8rem; font-weight: 700; }
.search-cache-note { display: inline-flex; align-items: center; min-height: 2rem; padding: .35rem .7rem; border-radius: 999px; background: #f4f7fa; color: var(--muted); font-size: .76rem; font-weight: 750; white-space: nowrap; }
.price-search-card[aria-busy="true"] .search-cache-note::before { content: ""; width: .5rem; height: .5rem; margin-right: .45rem; border-radius: 50%; background: var(--electric-yellow-dark); animation: observation-pulse 1s ease-in-out infinite alternate; }
.observation-summary { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem .65rem; min-height: 1.6rem; color: var(--muted); font-size: .82rem; }
.observation-summary strong { color: var(--electric-navy); font-size: .9rem; }
.observation-table-wrap { position: relative; display: block; width: 100%; height: 26rem; min-height: 0; max-height: 26rem; overflow-x: hidden; overflow-y: scroll; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; border: 1px solid #dfe6ef; border-radius: .85rem; background: #fff; scrollbar-gutter: stable; }
.observation-loader { position: absolute; inset: 0; z-index: 3; display: flex; width: 100%; height: 100%; flex-direction: column; align-items: center; justify-content: center; gap: .85rem; background: rgba(255,255,255,.94); color: var(--electric-navy); }
.observation-loader[hidden] { display: none; }
.observation-loader .spinner-border { width: 2.4rem; height: 2.4rem; color: var(--electric-yellow-dark); border-width: .22rem; }
.observation-loader strong { font-size: .78rem; font-weight: 850; letter-spacing: .09em; text-transform: uppercase; }
.observation-table { width: 100%; table-layout: fixed; font-variant-numeric: tabular-nums; }
.observation-table thead { color: #fff; }
.observation-table th { position: sticky; top: 0; z-index: 2; width: 50%; padding: 0; border: 0; background: var(--electric-navy); box-shadow: 0 1px 0 rgba(255,255,255,.12); }
.observation-sort { display: flex; align-items: center; gap: .25rem; width: 100%; min-width: 0; padding: .62rem .8rem; border: 0; background: transparent; color: #c9d4e2; font-size: .73rem; font-weight: 800; letter-spacing: .055em; text-align: left; text-transform: uppercase; white-space: nowrap; }
.observation-table th.text-end .observation-sort { justify-content: flex-end; text-align: right; }
.observation-sort:hover,
.observation-sort:focus-visible,
.observation-sort.is-active { color: var(--electric-yellow); }
.observation-sort:focus-visible { outline: 2px solid var(--electric-yellow); outline-offset: -3px; }
.observation-sort-label { min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.observation-sort-label-mobile { display: none; }
.observation-sort-icon { flex: 0 0 1rem; width: 1rem; text-align: center; }
.observation-table td { padding: .42rem .8rem; border-color: #edf1f5; vertical-align: middle; line-height: 1.1; }
.observation-table tbody tr:nth-child(even) td { background: #f8fafc; }
.observation-table tbody tr:hover td { background: #fff8d6; }
.observation-table time span,
.observation-table time small { display: block; }
.observation-table time span { color: var(--electric-navy); font-size: .84rem; font-weight: 750; }
.observation-table time small { margin-top: .15rem; color: var(--muted); font-size: .7rem; font-weight: 650; }
.observation-price { color: var(--electric-navy); font-size: .84rem; font-weight: 800; text-align: right; }
.observation-empty { height: 8rem; color: var(--muted); text-align: center; vertical-align: middle !important; }

@keyframes observation-pulse { to { opacity: .3; transform: scale(.75); } }

.api-hero { padding-bottom: 4.5rem; }
.api-shell { margin-top: -2.5rem; padding-bottom: 1rem; }
.api-version-nav { display: grid; grid-template-columns: repeat(3, 1fr); overflow: hidden; }
.api-version-nav a { display: flex; align-items: center; justify-content: center; gap: .7rem; padding: 1.15rem; color: var(--electric-navy); font-weight: 750; text-decoration: none; border-right: 1px solid #e8edf3; }
.api-version-nav a:last-child { border-right: 0; }
.api-version-nav a:hover { background: #fff9df; }
.api-version-nav span, .api-badge { display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; background: var(--electric-yellow); color: var(--electric-navy); font-weight: 850; }
.api-version-nav span { min-width: 2.3rem; min-height: 2.3rem; }
.api-badge { padding: .35rem .7rem; font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; }
.api-note { padding: 1.25rem; border-left: .3rem solid var(--electric-yellow); border-radius: .8rem; background: var(--electric-navy); color: #fff; }
.api-note strong, .api-note code { display: block; }
.api-note code { margin-top: .45rem; color: var(--electric-yellow); overflow-wrap: anywhere; }
.api-card { scroll-margin-top: 1rem; }
.api-heading { display: flex; justify-content: space-between; align-items: start; gap: 2rem; }
.api-call { display: flex; align-items: stretch; margin-top: 1.5rem; overflow: hidden; border-radius: .8rem; background: var(--electric-navy); color: #fff; }
.api-call span { display: grid; place-items: center; padding: .9rem 1rem; background: var(--electric-yellow); color: var(--electric-navy); font-size: .75rem; font-weight: 900; }
.api-call code { padding: .9rem 1rem; color: #fff; overflow-x: auto; white-space: nowrap; }
.api-table { margin-bottom: 0; }
.api-table th { color: var(--muted); font-size: .73rem; text-transform: uppercase; letter-spacing: .05em; border-bottom-width: 1px; }
.api-table td { padding-block: .85rem; }
.example-box { height: 100%; padding: 1.2rem; border: 1px solid #dfe6ef; border-radius: .9rem; background: #f8fafc; }
.example-box strong, .example-box code { display: block; }
.example-box code { margin: .65rem 0; color: #705600; overflow-wrap: anywhere; }
.example-box p { margin: 0; color: var(--muted); font-size: .9rem; }
.api-details { border: 1px solid #dfe6ef; border-radius: .9rem; overflow: hidden; }
.api-details summary { padding: 1rem 1.2rem; font-weight: 750; cursor: pointer; }
.api-details pre, .api-integration pre { margin: 0; padding: 1.25rem; background: var(--electric-navy); color: #dce8f5; overflow-x: auto; }
.api-details code, .api-integration pre code { color: inherit; }
.api-integration { overflow: hidden; }

@media (max-width: 767.98px) {
  .hero-section { padding-bottom: 3rem; }
  .app-shell { margin-top: -1.75rem; }
  .chart-wrap { height: 20rem; }
  .chart-wrap-small { height: 17rem; }
  .hour-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .long-stat-grid { grid-template-columns: 1fr; }
  .hour-actions { width: 100%; }
  .hour-actions .btn { flex: 1; }
  .api-version-nav { grid-template-columns: 1fr; }
  .api-version-nav a { justify-content: flex-start; border-right: 0; border-bottom: 1px solid #e8edf3; }
  .api-version-nav a:last-child { border-bottom: 0; }
  .api-heading { display: block; }
  .api-heading .btn { margin-top: .5rem; }
  .observation-table-wrap { height: 22rem; max-height: 22rem; }
  .observation-table th:first-child { width: 58%; }
  .observation-table th:last-child { width: 42%; }
  .observation-sort { padding-inline: .65rem; font-size: .68rem; letter-spacing: .035em; }
  .observation-sort-label-desktop { display: none; }
  .observation-sort-label-mobile { display: inline; }
  .observation-table td { padding-inline: .65rem; }
  .observation-summary .ms-auto { width: 100%; margin-left: 0 !important; }
  .hero-calculator-link { align-items: stretch; flex-direction: column; gap: 1rem; }
  .hero-calculator-link .btn { width: 100%; }
}

@media (min-width: 768px) and (max-width: 1199.98px) {
  .hour-grid { grid-template-columns: repeat(8, minmax(0, 1fr)); }
}