:root {
  --navy: #102a3c;
  --navy-text: #d5e4ec;
  --teal: #0d5c52;
  --ink: #163244;
  --muted: #3d5160;
  --line: #d5e0e6;
  --paper: #ffffff;
  --canvas: #f4f7f8;
  --mint: #e7f6f1;
  --mint-ink: #084e45;
  --pending-bg: #e8eef3;
  --pending-ink: #243b4a;
  --failed-bg: #fdecea;
  --failed-ink: #7a1d16;
  --banner-bg: #fff4d5;
  --banner-ink: #5c3d00;
  --focus-dark: #082033;
  --focus-light: #ffbf47;
  --control-border: #5c7382;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font: 1rem/1.5 "Segoe UI", system-ui, sans-serif;
}

h1, h2, h3, p { margin: 0; }

h1 {
  font-size: clamp(1.75rem, 1.1rem + 2vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  scroll-margin-top: 6rem;
}

h2 { font-size: 1.35rem; line-height: 1.3; }
h3 { font-size: 1.05rem; line-height: 1.4; }

.skip:not(:focus) {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip:focus {
  position: fixed;
  z-index: 20;
  inset-block-start: 0.75rem;
  inset-inline-start: 0.75rem;
  width: auto;
  height: auto;
  margin: 0;
  padding: 0.75rem 1rem;
  background: var(--paper);
  color: var(--ink);
  clip-path: none;
}

:focus {
  scroll-margin-top: 5.5rem;
}

:focus-visible,
#page-title:focus,
#status-title:focus,
#demo-banner:focus,
#work-summary:focus,
#request-errors:focus,
#request-result:focus,
#payment-result:focus {
  outline: 3px solid var(--focus-dark);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px var(--focus-light);
}

.shell {
  display: grid;
  grid-template-columns: 16.5rem minmax(0, 1fr);
  min-height: 100dvh;
}

.sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-height: 100dvh;
  overflow: auto;
  padding: 1.5rem 1.25rem;
  background: var(--navy);
  color: var(--navy-text);
}

.brand {
  color: var(--paper);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.brand-kicker {
  margin-block-start: -0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.org-name { color: var(--paper); font-weight: 700; }
.org-meta, .org-domain { font-size: 0.875rem; }

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
}

.nav-list button,
.nav-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  inline-size: 100%;
  min-block-size: 3rem;
  padding: 0.55rem 0.75rem;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--navy-text);
  font: inherit;
  font-weight: 700;
  text-align: start;
  text-decoration: none;
  cursor: pointer;
}

.nav-list button:hover,
.nav-list a:hover { text-decoration: underline; }

.nav-list button[aria-current="page"],
.nav-list a[aria-current="page"] {
  background: var(--mint);
  color: var(--mint-ink);
  text-decoration: none;
}

.current-flag {
  flex: 0 0 auto;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.sidebar-note a {
  color: var(--paper);
  font-weight: 700;
}

.sidebar-note {
  margin-top: auto;
  font-size: 0.875rem;
}

.content {
  min-width: 0;
  container: content / inline-size;
}

.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding: 1rem 2rem;
  background: var(--paper);
  border-block-end: 1px solid var(--line);
}

.top-org { display: grid; }
.kicker {
  color: var(--teal);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kicker.light { color: var(--navy-text); }
.top-domain { color: var(--muted); font-size: 0.875rem; }

.pill {
  margin: 0;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: var(--banner-bg);
  color: var(--banner-ink);
  font-size: 0.875rem;
  font-weight: 800;
}

main { padding: 1.5rem 2rem 2.5rem; }

.demo-banner {
  margin-block-end: 1.25rem;
  padding: 0.9rem 1rem;
  border: 3px solid var(--banner-ink);
  border-radius: 10px;
  background: var(--banner-bg);
  color: var(--banner-ink);
  font-weight: 750;
}

.lede { margin-block: 0.75rem 1.25rem; color: var(--muted); max-width: 42rem; }

.account-panel,
.card,
.result,
.notice {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
}

.account-panel { padding: 1rem 1.15rem; margin-block-end: 1.25rem; }
.account-identity { margin-block: 0.35rem; font-weight: 750; }
.account-panel .button,
.account-panel .text-button { margin-block-start: 0.75rem; }
.account-panel.is-compact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  padding-block: 0.75rem;
}
.account-panel.is-compact .kicker,
.account-panel.is-compact #account-detail { display: none; }
.account-panel.is-compact .account-identity,
.account-panel.is-compact .button,
.account-panel.is-compact .text-button { margin: 0; }

.status-card { display: grid; gap: 0.85rem; max-inline-size: 40rem; }
.status-card .button { justify-self: start; }
.button:disabled {
  background: var(--pending-bg);
  color: var(--pending-ink);
  border-color: var(--control-border);
  cursor: not-allowed;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  overflow: hidden;
  margin-block-end: 1rem;
  border-radius: 16px;
  background: var(--navy);
  color: var(--navy-text);
}

.hero-copy, .hero-side { padding: 1.5rem; }
.hero h2, .hero-strong { color: var(--paper); }
.hero-copy p + p, .hero-side p + p { margin-block-start: 0.5rem; }
.hero .button { margin-block-start: 1rem; }
.hero-side {
  display: grid;
  align-content: center;
  gap: 0.35rem;
  background: #1a3c52;
}

.cards, .split {
  display: grid;
  gap: 1rem;
  margin-block-start: 1rem;
}

.cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.split { grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr); }

.card { padding: 1.15rem 1.2rem; }
.card h2, .card h3 { margin-block-end: 0.5rem; }
.card p { color: var(--muted); }
.card .row-title, .card .ref, .card h3 { color: var(--ink); }

.section-head, .row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}

.row {
  padding-block: 0.85rem;
  border-block-start: 1px solid var(--line);
}

.section-head { margin-block-end: 0.25rem; }

.status {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 5px;
  background: var(--mint);
  color: var(--mint-ink);
  font-size: 0.75rem;
  font-weight: 750;
  white-space: nowrap;
}

.status[data-tone="pending"],
.status[data-tone="progress"],
.status[data-state="pending"] {
  background: var(--pending-bg);
  color: var(--pending-ink);
}

.status[data-state="failed"] {
  background: var(--failed-bg);
  color: var(--failed-ink);
}

.notice {
  margin-block-end: 1rem;
  padding: 0.9rem 1rem;
  border-inline-start: 4px solid var(--teal);
  background: var(--mint);
  color: var(--mint-ink);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 0.75rem;
  margin-block: 0.75rem 0.25rem;
}

.field { min-width: 0; }
.field.grow { flex: 1 1 14rem; }
.field label { display: block; margin-block-end: 0.35rem; font-weight: 750; }
.hint { margin-block-end: 0.35rem; color: var(--muted); font-size: 0.875rem; }

input, select, textarea {
  inline-size: 100%;
  min-block-size: 3rem;
  padding: 0.7rem 0.75rem;
  border: 1px solid var(--control-border);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
}

textarea { min-block-size: 9rem; resize: vertical; }

input:user-invalid,
select:user-invalid,
textarea:user-invalid,
.is-invalid {
  border-color: var(--failed-ink);
  background: var(--failed-bg);
}

.button, .text-button {
  min-block-size: 3rem;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  white-space: normal;
}

.button {
  border: 1px solid var(--control-border);
  background: var(--paper);
  color: var(--ink);
}

.button.primary {
  border-color: var(--teal);
  background: var(--teal);
  color: var(--paper);
}

.text-button {
  border: 0;
  background: transparent;
  color: var(--teal);
}

.error { margin-block-start: 0.35rem; color: var(--failed-ink); font-weight: 700; }
.error:empty, .alert:empty { display: none; }

.alert {
  margin-block-end: 1rem;
  padding: 0.75rem 0.9rem;
  border-radius: 8px;
  background: var(--failed-bg);
  color: var(--failed-ink);
  font-weight: 700;
}

.result {
  margin-block-start: 1rem;
  padding: 1rem;
  background: var(--mint);
  color: var(--mint-ink);
}

.result p, .preview p { margin-block-start: 0.45rem; }
.user-text { overflow-wrap: anywhere; white-space: pre-wrap; }

.preview {
  margin-block-start: 0.85rem;
  padding-block-start: 0.75rem;
  border-block-start: 3px solid var(--teal);
}

.timeline { margin: 0.5rem 0 0; padding: 0; list-style: none; }
.timeline li { padding-block: 0.9rem; border-block-start: 1px solid var(--line); }
.timeline .when, .when { color: var(--muted); font-size: 0.875rem; }
.timeline h3, .ref { margin-block: 0.15rem; }

.summary { margin-block: 0.75rem; font-weight: 700; }

.table-wrap {
  overflow: auto;
  max-inline-size: 100%;
  margin-block-start: 0.75rem;
  container: tablewrap / inline-size;
}

table { border-collapse: collapse; inline-size: 100%; font-size: 0.95rem; }
caption { margin-block-end: 0.75rem; text-align: start; font-weight: 750; }
th, td {
  padding: 0.75rem 0.6rem;
  border-block-end: 1px solid var(--line);
  text-align: start;
  vertical-align: top;
  overflow-wrap: anywhere;
}

th { font-size: 0.75rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
tbody th { font-size: 0.95rem; letter-spacing: 0; text-transform: none; color: var(--ink); }

.fine { margin-block-start: 1rem; color: var(--muted); font-size: 0.875rem; }

footer {
  padding: 1rem 2rem 1.5rem;
  border-block-start: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.875rem;
}

@container content (max-width: 52rem) {
  .hero, .cards, .split { grid-template-columns: 1fr; }
}

@container content (max-width: 40rem) {
  .filters { display: grid; }
  .button { inline-size: 100%; }
  .section-head { flex-direction: column; align-items: flex-start; }
}

@container tablewrap (width < 42rem) {
  .stack-table table,
  .stack-table thead,
  .stack-table tbody,
  .stack-table tr,
  .stack-table th,
  .stack-table td { display: block; }

  .stack-table thead { display: none; }

  .stack-table tr {
    margin-block-end: 0.9rem;
    padding: 0.35rem 0.75rem 0.75rem;
    border: 1px solid var(--line);
    border-radius: 10px;
  }

  .stack-table th, .stack-table td { border: 0; padding: 0.35rem 0; }
  .stack-table tbody th { font-size: 1rem; }

  .findings td:nth-child(2)::before { content: "Sample observation: "; font-weight: 750; }
  .findings td:nth-child(3)::before { content: "Sample label: "; font-weight: 750; }
  .invoices td:nth-child(2)::before { content: "Illustration: "; font-weight: 750; }
  .invoices td:nth-child(3)::before { content: "Amount: "; font-weight: 750; }
  .invoices td:nth-child(4)::before { content: "Sample state: "; font-weight: 750; }
  .invoices td:nth-child(5)::before { content: "Note: "; font-weight: 750; }
  .invoices td:nth-child(6)::before { content: "Control: "; font-weight: 750; }
}

@media (max-width: 48rem) {
  .shell { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    max-height: none;
    gap: 0.65rem;
    padding: 1rem;
  }
  .sidebar-note { margin-top: 0.25rem; }
  .nav-list { flex-direction: row; flex-wrap: wrap; }
  .nav-list li { flex: 1 1 9rem; }
  .nav-list button,
  .nav-list a { min-inline-size: 0; }
  .top, main, footer { padding-inline: 1rem; }
  main { padding-block: 1rem 2rem; }
  .status-card .button { justify-self: stretch; text-align: center; }
}

@media (max-width: 22rem) {
  .top, main, footer, .sidebar { padding-inline: 0.75rem; }
  .nav-list li { flex-basis: 100%; }
}

@media (forced-colors: active) {
  :focus-visible,
  #page-title:focus,
  #demo-banner:focus,
  #request-errors:focus,
  #request-result:focus,
  #payment-result:focus {
    outline: 3px solid CanvasText;
    box-shadow: none;
  }

  .button.primary { border: 1px solid ButtonText; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}