/* The API platform (/platform/): site.css's paper and ink laid out as a console. A bar across the top, the sections down
   the side (across the top on a narrow screen), and each section's panels. --chart is the bars' blue: the slate accent
   with more colour, so a bar doesn't read as grey (checked with the dataviz validator against both surfaces). */
:root { --chart:#1f6ea6; --on-warn:#fff; --shade:rgba(34, 29, 25, .1); }
@media (prefers-color-scheme: dark) {
  :root { --chart:#4d9bd6; --on-warn:#1a1310; --shade:rgba(0, 0, 0, .45); }
}

body.platform { font-size: 15px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.platform code { font: .92em var(--mono); color: var(--ink); background: var(--raise); padding: 1px 5px; border-radius: 4px; }
.mono { font-family: var(--mono); font-size: 13px; }
.muted { color: var(--muted); }

/* ------------------------------------------------------------------ the bar and the sections */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 14px;
  height: 60px;
  padding: 0 24px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  backdrop-filter: saturate(1.4) blur(10px);
}
.topbar .brand { font-family: var(--serif); font-size: 22px; color: var(--ink); text-decoration: none; }
.topbar .crumb { padding-left: 14px; border-left: 1px solid var(--line); color: var(--muted); }
.topbar .who { display: flex; align-items: center; gap: 16px; min-width: 0; margin-left: auto; font-size: 14px; color: var(--muted); }
.topbar .who span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.link-button {
  appearance: none;
  padding: 0;
  border: 0;
  background: none;
  color: var(--acc);
  font: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
  white-space: nowrap;
}
.link-button:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }

.shell {
  display: grid;
  grid-template-columns: 216px minmax(0, 1fr);
  max-width: 1320px;
  margin: 0 auto;
}
.sections {
  position: sticky;
  top: 60px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 28px 16px;
}
.sections a {
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--body);
  text-decoration: none;
  transition: background-color .15s, color .15s;
}
.sections a:hover { background: var(--raise); opacity: 1; }
.sections a[aria-current="page"] { background: var(--acc-soft); color: var(--acc); font-weight: 500; }
.console { min-width: 0; padding: 34px 32px 96px; }
.view { max-width: 1000px; }
.view > h1 { margin: 0 0 24px; font-size: 34px; letter-spacing: -0.01em; }
.view > .head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; margin: 0 0 24px; }
.view > .head h1 { margin: 0; font-size: 34px; letter-spacing: -0.01em; }

/* ------------------------------------------------------------------ panels, figures and tables */
.panel {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
}
.stack { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; }   /* a wide table or code line scrolls in its box */
.panel h2 { margin: 0 0 14px; font-size: 20px; }
.panel > .head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 16px; margin: 0 0 14px; }
.panel > .head h2 { margin: 0; }
.panel > .head a, .panel > .head .link-button { font-size: 14px; }
.split { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: 16px; }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.stat { min-width: 0; padding: 18px 20px; border: 1px solid var(--line); border-radius: 14px; }
.stat .label { margin: 0; color: var(--muted); font-size: 13px; }
.stat .value {
  margin: 8px 0 0;
  color: var(--ink);
  font: 400 30px/1.1 var(--serif);
  font-variant-numeric: lining-nums tabular-nums;
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
}
.stat .sub { margin: 6px 0 0; color: var(--muted); font-size: 13px; }
.stat.hero {
  grid-column: span 2;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  background: var(--raise);
}
.stat.hero .value { font-size: 46px; }
#bill-credit-box { grid-column: 1 / -1; }

.table-wrap { position: relative; margin: 0; }   /* holds .sr labels inside its scrolling box */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  padding: 0 16px 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  text-align: left;
  white-space: nowrap;
}
.table td { padding: 12px 16px 12px 0; border-bottom: 1px solid var(--line); color: var(--ink); vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table th:last-child, .table td:last-child { padding-right: 0; }
.table .num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.table .end { text-align: right; }
.table .muted { color: var(--muted); }
.table tr.gone td { color: var(--muted); }
.pill { display: inline-block; margin-left: 6px; padding: 1px 8px; border-radius: 999px; background: var(--raise); color: var(--muted); font-size: 12px; }
.empty { margin: 0; padding: 6px 0; color: var(--muted); }

.notice {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  margin: 0 0 16px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  font-size: 14px;
}
.notice.warn { border-color: color-mix(in srgb, var(--warn) 45%, var(--line)); background: color-mix(in srgb, var(--warn) 8%, var(--paper)); }
.notice.ok { border-color: color-mix(in srgb, var(--ok) 45%, var(--line)); background: color-mix(in srgb, var(--ok) 8%, var(--paper)); }
.notice p { margin: 0; }

/* ------------------------------------------------------------------ forms and buttons */
.field { display: grid; gap: 6px; }
.field > span { color: var(--muted); font-size: 13px; }
.input {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  color: var(--ink);
  font: 15px var(--font);
  transition: border-color .15s, box-shadow .15s;
}
.input::placeholder { color: var(--muted); opacity: .8; }
.input:focus { outline: none; border-color: var(--acc); box-shadow: 0 0 0 3px var(--acc-soft); }
.input.code { font: 22px/1 var(--mono); letter-spacing: .32em; text-align: center; }
.money { position: relative; }
.money::before { content: "$"; position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--muted); pointer-events: none; }
.money .input { padding-left: 28px; font-variant-numeric: tabular-nums; }
.row { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 10px; }
.row .field { flex: 1 1 220px; }
.error { margin: 10px 0 0; color: var(--warn); font-size: 14px; }
.button.small { min-height: 34px; padding: 0 14px; border-radius: 8px; font-size: 14px; }
.button.danger { border-color: var(--warn); background: var(--warn); color: var(--on-warn); }
.button.danger.quiet { background: transparent; color: var(--warn); }
.button.danger.quiet:hover { background: color-mix(in srgb, var(--warn) 10%, transparent); }
.button.busy { position: relative; opacity: 1; color: transparent !important; pointer-events: none; }
.button.busy::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid var(--on-acc);
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
.button.quiet.busy::after { border-color: var(--acc); border-right-color: transparent; }

.seg { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: var(--raise); }
.seg button {
  appearance: none;
  padding: 6px 14px;
  border: 0;
  border-radius: 999px;
  background: none;
  color: var(--muted);
  font: 500 14px var(--font);
  cursor: pointer;
  transition: color .15s, background-color .15s;
}
.seg button[aria-pressed="true"] { background: var(--knob); color: var(--ink); box-shadow: 0 1px 2px var(--shade), 0 0 0 1px var(--line); }
.seg button:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }

/* ------------------------------------------------------------------ sign-in */
.signin { max-width: 400px; margin: 7vh auto 0; }
.signin h1 { margin: 0 0 24px; font-size: 34px; }
.signin form { display: grid; gap: 12px; }
.signin .button { width: 100%; }
.signin .again { margin: 16px 0 0; font-size: 14px; color: var(--muted); }
.or { display: flex; align-items: center; gap: 12px; margin: 6px 0; color: var(--muted); font-size: 13px; }
.or::before, .or::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* ------------------------------------------------------------------ charts: one series each, bars by day */
.charts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.chart { position: relative; }
.chart .label { margin: 0; color: var(--muted); font-size: 13px; }
.chart .total { margin: 4px 0 14px; color: var(--ink); font: 400 26px/1.1 var(--serif); font-variant-numeric: lining-nums tabular-nums; }
.chart svg { display: block; width: 100%; height: 150px; overflow: visible; touch-action: pan-y; }
.chart.small svg { height: 120px; }
.chart .bar { fill: var(--chart); transition: opacity .12s; }
.chart svg.hovering .bar { opacity: .35; }
.chart svg.hovering .day.on .bar { opacity: 1; }
.chart .grid { stroke: var(--line); stroke-width: 1; shape-rendering: crispEdges; }
.chart .axis { fill: var(--muted); font: 11px var(--font); font-variant-numeric: tabular-nums; }
.chart .hit { fill: transparent; cursor: default; }
.tip {
  position: absolute;
  z-index: 5;
  padding: 7px 10px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--paper);
  font-size: 12px;
  line-height: 1.45;
  white-space: nowrap;
  pointer-events: none;
  transform: translate(-50%, calc(-100% - 8px));
}
.tip strong { display: block; font-weight: 600; }
.by-day { margin-top: 14px; font-size: 14px; }
.by-day summary { color: var(--acc); cursor: pointer; }
.by-day .table-wrap { max-height: 360px; margin-top: 10px; overflow: auto; }

/* ------------------------------------------------------------------ code with tabs and Copy */
.code { overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--raise); }
.code .tabs { display: flex; align-items: center; gap: 2px; min-height: 42px; padding: 5px 6px 5px 8px; border-bottom: 1px solid var(--line); }
.code .tabs [role="tab"] {
  appearance: none;
  padding: 5px 10px;
  border: 0;
  border-radius: 7px;
  background: none;
  color: var(--muted);
  font: 500 13px var(--font);
  cursor: pointer;
}
.code .tabs [role="tab"][aria-selected="true"] { background: var(--knob); color: var(--ink); box-shadow: 0 0 0 1px var(--line); }
.code .tabs .title { padding: 0 6px; color: var(--muted); font-size: 13px; }
.code .copy { margin-left: auto; }
.code pre { margin: 0; padding: 16px 18px; overflow-x: auto; color: var(--ink); font: 13px/1.65 var(--mono); tab-size: 2; }
.code pre code { padding: 0; background: none; font: inherit; }
.code .s { color: var(--acc); }
.code .c { color: var(--muted); }

/* ------------------------------------------------------------------ keys, credit and Checkout */
.reveal { margin: 16px 0 0; padding: 16px; border: 1px solid color-mix(in srgb, var(--acc) 40%, var(--line)); border-radius: 12px; background: var(--acc-soft); }
.reveal p { margin: 0 0 10px; color: var(--ink); font-size: 14px; }
.reveal .keyline { display: flex; align-items: center; gap: 10px; }
.reveal .keyline code {
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  font: 13px var(--mono);
  white-space: nowrap;
}
.packs { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; margin: 0 0 14px; }
.pack {
  appearance: none;
  min-height: 60px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper);
  color: var(--ink);
  font: 400 24px/1 var(--serif);
  text-align: left;
  cursor: pointer;
  transition: border-color .15s, background-color .15s, box-shadow .15s;
}
.pack:hover { border-color: color-mix(in srgb, var(--acc) 45%, var(--line)); }
.pack[aria-pressed="true"] { border-color: var(--acc); background: var(--acc-soft); box-shadow: inset 0 0 0 1px var(--acc); }
.pack:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }
.pack.other { font: 500 15px/1.2 var(--font); color: var(--body); }
.checkout { margin-top: 16px; }
.checkout .mount { min-height: 120px; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.checkout .bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin: 0 0 10px; font-size: 14px; }
.added { margin: 0 0 16px; }
.added strong { font: 400 22px/1.2 var(--serif); color: var(--ink); }

/* ------------------------------------------------------------------ docs */
.docs { display: grid; grid-template-columns: minmax(0, 1fr) 190px; gap: 48px; max-width: 1080px; }
.docs article { min-width: 0; }
.docs article > h1 { margin: 0 0 8px; font-size: 34px; letter-spacing: -0.01em; }
.docs article h2 { margin: 52px 0 12px; font-size: 26px; scroll-margin-top: 84px; }
.docs article h3 { margin: 28px 0 8px; color: var(--ink); font: 600 16px/1.4 var(--font); scroll-margin-top: 84px; }
.docs article p, .docs article li { max-width: 70ch; }
.docs article p { margin: 0 0 14px; }
.docs article ul { margin: 0 0 14px; padding-left: 22px; }
.docs article li { margin: 0 0 6px; }
.docs .code { margin: 0 0 16px; }
.docs .table-wrap { margin: 0 0 16px; overflow-x: auto; }
.docs .table td { vertical-align: top; }
.docs .table td:first-child { white-space: nowrap; }
.toc { position: sticky; top: 94px; align-self: start; font-size: 14px; }
.toc p { margin: 0 0 8px; color: var(--ink); font-weight: 500; }
.toc a { display: block; padding: 4px 0 4px 12px; border-left: 1px solid var(--line); color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--ink); opacity: 1; }
.toc a[aria-current="true"] { border-left-color: var(--acc); color: var(--acc); }

/* ------------------------------------------------------------------ the revoke dialog */
dialog.confirm {
  width: calc(100% - 32px);
  max-width: 420px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper);
  color: var(--body);
  box-shadow: 0 24px 64px -24px rgba(0, 0, 0, .4);
}
dialog.confirm::backdrop { background: rgba(23, 21, 18, .38); }
dialog.confirm h2 { margin: 0 0 8px; font-size: 22px; }
dialog.confirm p { margin: 0; }
dialog .actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }

/* ------------------------------------------------------------------ waiting, and motion */
.wait {
  display: inline-block;
  min-width: 4ch;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--raise), var(--line), var(--raise));
  background-size: 200% 100%;
  color: transparent !important;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes shimmer { to { background-position: -200% 0; } }
@keyframes enter { from { opacity: 0; transform: translateY(6px); } }
@keyframes glow { 0% { background-color: color-mix(in srgb, var(--ok) 18%, var(--raise)); } 100% { background-color: var(--raise); } }
@media (prefers-reduced-motion: no-preference) {
  .view:not([hidden]) { animation: enter .28s cubic-bezier(.2, .8, .2, 1); }
  .wait { animation: shimmer 1.4s linear infinite; }
  .stat.hero.glow { animation: glow 1.8s ease-out; }
  .added { animation: enter .35s cubic-bezier(.2, .8, .2, 1); }
}
@media (prefers-reduced-motion: reduce) {
  .button.busy::after { animation-duration: 2s; }
}

/* ------------------------------------------------------------------ narrower screens */
@media (max-width: 1180px) {
  .docs { grid-template-columns: minmax(0, 1fr); }
  .toc { display: none; }
}
@media (max-width: 1100px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 900px) {
  .shell { grid-template-columns: minmax(0, 1fr); }
  .sections {
    top: 60px;
    z-index: 20;
    flex-direction: row;
    gap: 4px;
    padding: 8px 12px;
    overflow-x: auto;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
    scrollbar-width: none;
  }
  .sections::-webkit-scrollbar { display: none; }
  .sections a { white-space: nowrap; }
  .console { padding: 24px 16px 80px; }
  .topbar { padding: 0 16px; }
  .charts { grid-template-columns: minmax(0, 1fr); }
  .docs article h2, .docs article h3 { scroll-margin-top: 130px; }
}
@media (max-width: 640px) {
  .packs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .topbar .crumb { display: none; }
  .view > h1, .view > .head h1, .docs article > h1 { font-size: 30px; }
  .stat.hero .value { font-size: 40px; }
}
@media (max-width: 520px) {
  .stats { grid-template-columns: minmax(0, 1fr); }
  .stat.hero { grid-column: auto; }
  .topbar .who span { display: none; }
}