:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #e3e6eb;
  --text: #1b1f24;
  --muted: #5f6b7a;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --danger: #c62828;
  --ok: #1b7f3b;
  --warn: #a15c00;
  --code-bg: #f0f2f5;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --surface: #171b21;
    --border: #2a3039;
    --text: #e6e9ee;
    --muted: #94a0b0;
    --accent: #4f8cff;
    --danger: #ff6b6b;
    --ok: #4cc27a;
    --warn: #f0a640;
    --code-bg: #1f252d;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.5rem; margin: 0 0 .25rem; }
h2 { font-size: 1.1rem; margin: 0 0 .75rem; }
h3 { font-size: 1rem; margin: 0 0 .5rem; }
p { margin: .25rem 0 .75rem; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .9em; }
code { background: var(--code-bg); padding: .1em .35em; border-radius: 4px; }
pre { background: var(--code-bg); padding: .75rem 1rem; border-radius: 8px; overflow-x: auto; font-size: .85rem; }

.topbar {
  background: var(--surface); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 1rem; padding: .6rem 1rem; flex-wrap: wrap;
}
.brand { font-weight: 700; color: var(--text); letter-spacing: -.01em; }
.brand span { color: var(--accent); }
.topbar nav { display: flex; gap: .9rem; align-items: center; margin-left: auto; flex-wrap: wrap; }
.topbar nav a { color: var(--muted); }
.topbar nav a:hover { color: var(--text); }
.topbar form { margin: 0; }

main { max-width: 1040px; margin: 0 auto; padding: 1.5rem 1rem 3rem; }
main.narrow { max-width: 440px; padding-top: 4rem; }

.page-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }

.tabs { display: flex; gap: .25rem; border-bottom: 1px solid var(--border); margin-bottom: 1.25rem; overflow-x: auto; }
.tabs a { padding: .5rem .85rem; color: var(--muted); border-bottom: 2px solid transparent; white-space: nowrap; }
.tabs a.on { color: var(--text); border-color: var(--accent); }
.tabs a:hover { text-decoration: none; color: var(--text); }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.1rem 1.25rem; margin-bottom: 1rem; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: .75rem; flex-wrap: wrap; margin-bottom: .5rem; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .55rem .5rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
.table-wrap { overflow-x: auto; }
td.actions { text-align: right; white-space: nowrap; }
td.actions form { display: inline; }

label { display: block; font-weight: 600; font-size: .88rem; margin: .6rem 0 .25rem; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=url], select, textarea {
  width: 100%; padding: .55rem .7rem; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); color: var(--text); font: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
input.code { font-size: 1.4rem; letter-spacing: .3em; text-align: center; font-family: ui-monospace, monospace; }
.row { display: flex; gap: .6rem; flex-wrap: wrap; align-items: flex-end; }
.row > * { flex: 1 1 160px; }
.row > .shrink { flex: 0 0 auto; }
.check { display: flex; gap: .5rem; align-items: center; font-weight: 400; margin: .3rem 0; }
.hint { font-size: .82rem; color: var(--muted); margin-top: .2rem; }

button, .btn {
  display: inline-block; padding: .5rem .95rem; border-radius: 8px; border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-text); font: inherit; font-weight: 600; cursor: pointer; line-height: 1.3;
}
button:hover, .btn:hover { filter: brightness(1.08); text-decoration: none; }
button.secondary, .btn.secondary { background: transparent; color: var(--text); border-color: var(--border); }
button.danger { background: transparent; color: var(--danger); border-color: var(--danger); }
button.link { background: none; border: 0; color: var(--muted); padding: 0; font-weight: 400; }
button.link:hover { color: var(--text); }
button.small, .btn.small { padding: .25rem .6rem; font-size: .82rem; }
button.block { width: 100%; margin-top: 1rem; }

.badge { display: inline-block; padding: .08rem .5rem; border-radius: 999px; font-size: .75rem; font-weight: 600; border: 1px solid var(--border); color: var(--muted); }
.badge.ok { color: var(--ok); border-color: currentColor; }
.badge.error, .badge.failed, .badge.disabled, .badge.rejected { color: var(--danger); border-color: currentColor; }
.badge.pending, .badge.queued, .badge.sending { color: var(--warn); border-color: currentColor; }
.badge.sent, .badge.active { color: var(--ok); border-color: currentColor; }

.flash { background: var(--surface); border: 1px solid var(--accent); border-left-width: 4px; padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1rem; }
.alert { border: 1px solid var(--danger); color: var(--danger); padding: .6rem .9rem; border-radius: 8px; margin: .5rem 0; }
.notice { border: 1px solid var(--border); padding: .6rem .9rem; border-radius: 8px; margin: .5rem 0; color: var(--muted); }

.secret { display: flex; gap: .5rem; align-items: center; background: var(--code-bg); border-radius: 8px; padding: .6rem .8rem; word-break: break-all; }
.secret code { background: none; padding: 0; flex: 1; }
.codes { display: grid; grid-template-columns: repeat(2, 1fr); gap: .4rem 1rem; font-family: ui-monospace, monospace; font-size: 1.05rem; padding: 1rem; background: var(--code-bg); border-radius: 8px; }
.qr { display: block; margin: .75rem auto; background: #fff; padding: 8px; border-radius: 8px; }

.bot { padding: 0; overflow: hidden; }
.bot .card-head { padding: 1rem 1.25rem .5rem; margin: 0; }
.bot table { border-top: 1px solid var(--border); }
.bot th:first-child, .bot td:first-child { padding-left: 1.25rem; }
.bot th:last-child, .bot td:last-child { padding-right: 1.25rem; }
.empty { padding: 1rem 1.25rem; color: var(--muted); }
.notes { white-space: pre-wrap; overflow-wrap: anywhere; margin: .35rem 0 0; }
.group-title { display: flex; align-items: baseline; gap: .5rem; margin: 1.5rem 0 .6rem; font-size: 1.05rem; }
.group-title:first-child { margin-top: 0; }
textarea { resize: vertical; min-height: 4.5rem; }
td form.row { flex-wrap: nowrap; align-items: center; }
details summary { cursor: pointer; color: var(--accent); font-weight: 600; }
details[open] summary { margin-bottom: .5rem; }
ol.steps { padding-left: 1.2rem; margin: .25rem 0 .5rem; }
ol.steps li { margin: .2rem 0; }

@media (max-width: 640px) {
  .hide-sm { display: none; }
  .codes { grid-template-columns: 1fr; }
}
.brand.big { font-size: 1.3rem; display: block; margin-bottom: 1rem; }
a.card { display: block; color: inherit; }
a.card:hover { text-decoration: none; border-color: var(--accent); }
.api-docs h3 { margin-top: 1.5rem; }
.api-docs h4 { font-size: .9rem; margin: 1rem 0 .4rem; }
.api-docs ul { padding-left: 1.2rem; }
.api-docs li { margin: .2rem 0; }
[hidden] { display: none !important; }
dialog.modal {
  width: min(680px, calc(100vw - 32px)); max-height: calc(100vh - 32px); overflow-y: auto;
  background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.1rem 1.25rem; box-shadow: 0 12px 40px rgba(0, 0, 0, .25);
}
dialog.modal::backdrop { background: rgba(10, 12, 16, .55); }
dialog.modal h3 { margin-top: 1.25rem; }
dialog.modal h4 { font-size: .9rem; margin: .75rem 0 .3rem; }
dialog.modal ul { padding-left: 1.2rem; }
dialog.modal li { margin: .25rem 0; }
.modal-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.modal-head h2 { margin: 0; }
.modal-head form, .modal-foot { margin: 0; }
.modal-head button.link { font-size: 1.6rem; line-height: 1; }
.modal-foot { display: flex; justify-content: flex-end; margin-top: 1rem; }
table.compact td { padding: .3rem .5rem; }
button.help { color: var(--accent); font-size: .82rem; }
fieldset.first-dest { border: 1px solid var(--border); border-radius: 8px; padding: .4rem .9rem .6rem; margin: 1rem 0 0; }
fieldset.first-dest legend { font-weight: 600; font-size: .9rem; padding: 0 .3rem; }

/* ---- Syntax colours ---- */
:root {
  --tok-key: #0b5cad; --tok-str: #1a7f37; --tok-num: #b35900; --tok-kw: #8250df;
  --tok-com: #6e7781; --tok-var: #b3261e; --tok-flag: #0550ae;
}
@media (prefers-color-scheme: dark) {
  :root {
    --tok-key: #79b8ff; --tok-str: #85e89d; --tok-num: #ffab70; --tok-kw: #d2a8ff;
    --tok-com: #8b949e; --tok-var: #ff7b72; --tok-flag: #a5d6ff;
  }
}
.tok-key { color: var(--tok-key); }
.tok-str { color: var(--tok-str); }
.tok-num { color: var(--tok-num); }
.tok-kw { color: var(--tok-kw); font-weight: 600; }
.tok-com { color: var(--tok-com); font-style: italic; }
.tok-var { color: var(--tok-var); }
.tok-flag { color: var(--tok-flag); }

/* ---- Code blocks ---- */
pre { border: 1px solid var(--border); line-height: 1.55; margin: .5rem 0 1rem; }
.code-wrap { position: relative; }
.code-wrap > pre { padding-right: 4.5rem; }
.code-wrap .copy-code { position: absolute; top: .45rem; right: .45rem; opacity: .75; background: var(--surface); }
.code-wrap:hover .copy-code, .copy-code:focus { opacity: 1; }
[data-codetabs] { margin: .5rem 0 1rem; }
[data-codetabs] pre { margin: 0; border-top-left-radius: 0; border-top-right-radius: 0; }
.codetab-bar { display: flex; border: 1px solid var(--border); border-bottom: 0; border-radius: 8px 8px 0 0; background: var(--surface); overflow-x: auto; }
.codetab-bar button {
  background: none; border: 0; border-bottom: 2px solid transparent; border-radius: 0; color: var(--muted);
  font-weight: 600; font-size: .82rem; padding: .45rem .85rem; white-space: nowrap;
}
.codetab-bar button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); }
.codetab-bar button:hover { color: var(--text); filter: none; }

/* ---- Page structure ---- */
.subnav { display: flex; gap: .35rem; flex-wrap: wrap; margin: 0 0 1rem; }
.subnav a { padding: .3rem .75rem; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); font-size: .85rem; background: var(--surface); }
.subnav a:hover { color: var(--text); border-color: var(--accent); text-decoration: none; }
.subnav.inline { margin: 1rem 0 0; padding-top: .9rem; border-top: 1px solid var(--border); }
.section-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; flex-wrap: wrap; margin-bottom: .75rem; }
.section-head h2 { margin-bottom: .2rem; }
.section-head p { margin: 0; }
.card.flush { padding: 0; overflow: hidden; }
.card.flush .pad { padding: 1.1rem 1.25rem .5rem; margin: 0; }
.card.flush .empty { border-top: 1px solid var(--border); }
.count { display: inline-block; min-width: 1.6em; padding: 0 .45em; border-radius: 999px; background: var(--code-bg); color: var(--muted); font-size: .8rem; text-align: center; vertical-align: middle; }
.card[id], h3[id] { scroll-margin-top: 1rem; }

table.list { border-top: 1px solid var(--border); }
table.list th { background: var(--bg); }
table.list th:first-child, table.list td:first-child { padding-left: 1.25rem; }
table.list th:last-child, table.list td:last-child { padding-right: 1.25rem; }
table.list tbody tr:hover { background: var(--bg); }
tr.dim td { opacity: .6; }
a.strong { font-weight: 600; }
.chip {
  display: inline-block; margin: .1rem .25rem .1rem 0; padding: .1rem .55rem; border-radius: 999px;
  border: 1px solid var(--border); background: var(--code-bg); color: var(--text);
  font: 500 .8rem ui-monospace, SFMono-Regular, Consolas, monospace; line-height: 1.5;
}
button.chip { cursor: pointer; }
button.chip:hover { border-color: var(--accent); filter: none; }
button.chip[aria-pressed="true"] { border-color: var(--accent); background: var(--accent); color: var(--accent-text); }

/* Settings rows: description on the left, controls on the right. */
.setting { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 1.5rem; padding: 1rem 0; border-top: 1px solid var(--border); }
.card > .setting:first-child, .card > form.setting:first-child, .section-head + form > .setting:first-child { border-top: 0; padding-top: .25rem; }
.setting-label h3 { margin-bottom: .25rem; }
.setting-label p { margin: 0; }
.setting label:first-child { margin-top: 0; }
.form-foot { display: flex; align-items: center; gap: .9rem; flex-wrap: wrap; margin-top: .9rem; }
.dest-picker { border: 1px solid var(--border); border-radius: 8px; max-height: 18rem; overflow-y: auto; }
.dest-picker .dest { display: flex; align-items: flex-start; gap: .6rem; margin: 0; padding: .5rem .75rem; border-bottom: 1px solid var(--border); font-weight: 400; cursor: pointer; }
.dest-picker .dest:last-child { border-bottom: 0; }
.dest-picker .dest:hover { background: var(--bg); }
.dest-picker .dest input { margin-top: .3rem; }
.danger-zone { border-color: var(--danger); }
.danger-zone .setting { padding: .25rem 0; }
.reveal { border-color: var(--accent); }

dl.facts { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: .75rem 1.25rem; margin: .5rem 0 0; }
dl.facts dt { font-size: .75rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
dl.facts dd { margin: .1rem 0 0; font-weight: 500; }

/* ---- API reference ---- */
.docs-layout { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 2rem; }
.docs-toc { position: sticky; top: 1rem; align-self: start; display: flex; flex-direction: column; gap: .1rem; border-left: 2px solid var(--border); }
.docs-toc a { color: var(--muted); font-size: .86rem; padding: .2rem .75rem; margin-left: -2px; border-left: 2px solid transparent; }
.docs-toc a:hover { color: var(--text); border-left-color: var(--accent); text-decoration: none; }
.docs-body > h3 { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.docs-body > h3:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.endpoint { display: inline-flex; align-items: center; gap: .5rem; margin: .25rem 0 .5rem; padding: .3rem .6rem .3rem .3rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); }
.endpoint code { background: none; padding: 0; font-weight: 600; }
.method { display: inline-block; padding: .1rem .45rem; border-radius: 5px; font: 700 .72rem ui-monospace, monospace; letter-spacing: .04em; color: #fff; }
.method.post { background: #1a7f37; }
.method.get { background: #0b5cad; }
table.params td:first-child { white-space: nowrap; }
.req { font-size: .7rem; color: var(--danger); font-weight: 600; margin-left: .25rem; }

/* ---- Test console ---- */
.console-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 1.5rem; }
.console-req label:first-child { margin-top: 0; }
.input-group { display: flex; }
.input-group input { border-top-right-radius: 0; border-bottom-right-radius: 0; min-width: 0; }
.input-group button { border-top-left-radius: 0; border-bottom-left-radius: 0; margin-left: -1px; flex: 0 0 auto; }
.con-chips { margin-top: .35rem; }
.con-media { margin-top: .75rem; }
.con-media summary { font-size: .88rem; }
.console-actions { margin-top: 1rem; }
.console-actions button { width: 100%; }
.console-res { min-width: 0; }
.pane-title { font-size: .75rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; margin: 0 0 .35rem; }
.pane-title:not(:first-child) { margin-top: 1.1rem; }
.con-status { display: flex; align-items: baseline; gap: .5rem; flex-wrap: wrap; min-height: 1.5rem; }
.con-hint { flex-basis: 100%; color: var(--warn); }
pre.code-out { min-height: 6rem; max-height: 22rem; overflow: auto; margin: .4rem 0 0; }
pre.code-out:empty::before { content: "The response will appear here."; color: var(--muted); }
.con-code pre { max-height: 18rem; }

@media (max-width: 820px) {
  .setting, .console-grid, .docs-layout { grid-template-columns: minmax(0, 1fr); gap: .75rem; }
  .docs-toc { position: static; flex-direction: row; flex-wrap: wrap; border-left: 0; gap: .3rem; }
  .docs-toc a { border: 1px solid var(--border); border-radius: 999px; margin: 0; padding: .15rem .6rem; font-size: .8rem; }
}
.downloads { display: flex; gap: .4rem; flex-wrap: wrap; margin-left: auto; }