/* developer-doc.html — developer documentation for AirCode CLI, AirCode Studio and Air Router (since 2026-10-17).
 *
 * A docs page: a sticky contents rail on the left, the three products down the right, each with the same parts
 * (what it is for, get started, use cases, features, reference). Designed in Telemetry (charcoal panels, hairlines,
 * mono labels, bracketed eyebrows, one signal colour: --tm-accent*, the visitor's Telemetry colour pick, amber by
 * default) and drawn by this file in all five visitor themes, with the same tokens as platform-page.css:
 *   Telemetry  html[data-final="telemetry"]                  the base tokens below
 *   Night      html:not([data-theme="studio"])               the live Final Dark look
 *   Day        html[data-theme="studio"] (data-final="light") the live Final Light look
 *   Cloud      html[data-final="cloud"]                      the soft app-store light (cloud.css)
 *   Cloud Dark html[data-final="cloud"][data-cloud="dark"]   Cloud on a charcoal ground (cloud-dark.css)
 * The <main> is marked data-st-own, so studio-icons.js and the theme layers' generic rules leave it alone. Every rule
 * is scoped under .dd. developer-doc-page.js adds .dd-js (scroll-spy, mobile contents drawer, filters, copy buttons,
 * the tool and system picker, the setup-script download, the checklist count); without it the whole page still reads:
 * the contents list sits above the content on phones, every tool's steps show for every system, the setup script
 * downloads for all tools, and the filter and copy controls stay hidden. */

/* ── Tokens ─────────────────────────────────────────────────────────────────────────────────── */
.dd {
  --dd-ink: #eceef1; --dd-mid: #b7bdc6; --dd-muted: #9aa2ae; --dd-dim: #8a929e;
  --dd-line: #22262c; --dd-line2: #2c3138; --dd-line3: #3d444e;
  --dd-panel: #111316; --dd-panel2: #16191d; --dd-well: #08090b; --dd-band: #0e1013; --dd-ground: #0b0c0e;
  --dd-acc: var(--tm-accent, #ffb020); --dd-acc-rgb: var(--tm-accent-rgb, 255 176 32);
  --dd-acc-hi: var(--tm-accent-hi, #ffc34d); --dd-acc-ink: var(--tm-accent-ink, #1a1100);
  --dd-ok: #4ade80; --dd-ok-rgb: 74 222 128;
  --dd-code-bg: #08090b; --dd-code-ink: #dfe3e8; --dd-code-bar: #111316;
  --dd-sheen: inset 0 1px 0 rgb(255 255 255 / .035);
  --dd-shadow: inset 0 1px 0 rgb(255 255 255 / .035), 0 30px 60px -40px rgb(0 0 0 / .9);
  --dd-card-shadow: var(--dd-sheen);
  --dd-btn-bg: var(--dd-acc); --dd-btn-fg: var(--dd-acc-ink); --dd-btn-line: var(--dd-acc);
  --dd-btn-hi: var(--dd-acc-hi); --dd-btn-hi-line: var(--dd-acc-hi);
  --dd-btn-font: var(--dd-mono); --dd-r-btn: 6px;
  --dd-mono: var(--ft-mono, 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace);
  --dd-display: var(--ft-display, 'Sora', 'Manrope', system-ui, sans-serif);
  --dd-sans: var(--ft-sans, 'Manrope', system-ui, sans-serif);
  --dd-r: 8px; --dd-r-sm: 6px;
  --dd-ease: cubic-bezier(.2, .8, .2, 1);
  --dd-top: 80px;   /* the fixed site header */
  display: block; position: relative; color: var(--dd-ink); font-family: var(--dd-sans);
  font-size: 16px; line-height: 1.6; letter-spacing: -.005em; overflow-x: clip;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
/* Night: the live Final Dark look — black ground, cyan signal, blue → violet actions. */
html:not([data-theme="studio"]) .dd {
  --dd-ink: #ffffff; --dd-mid: #b4bbc6; --dd-muted: #9ca3af; --dd-dim: #8a93a2;
  --dd-line: rgb(255 255 255 / .08); --dd-line2: rgb(255 255 255 / .12); --dd-line3: rgb(255 255 255 / .2);
  --dd-panel: #0e0e10; --dd-panel2: #141417; --dd-well: #08080a; --dd-band: #0a0a0a; --dd-ground: #050505;
  --dd-acc: #00f0ff; --dd-acc-rgb: 0 240 255; --dd-acc-hi: #5cf6ff; --dd-acc-ink: #00191c;
  --dd-code-bg: #050506; --dd-code-ink: #e6e9ee; --dd-code-bar: #0e0e10;
  --dd-r: 16px; --dd-r-sm: 12px; --dd-r-btn: 999px; --dd-btn-font: var(--dd-sans);
  --dd-head-grad: linear-gradient(90deg, #3b82f6 0%, #8a2be2 50%, #00f0ff 100%);
  --dd-btn-bg: linear-gradient(90deg, #0055ff 0%, #8a2be2 100%); --dd-btn-fg: #ffffff; --dd-btn-line: transparent;
  --dd-btn-hi: linear-gradient(90deg, #1a66ff 0%, #9a40ee 100%); --dd-btn-hi-line: transparent;
  --dd-sheen: inset 0 1px 0 rgb(255 255 255 / .04);
  --dd-shadow: inset 0 1px 0 rgb(255 255 255 / .04), 0 30px 60px -30px rgb(0 0 0 / .85);
}
/* Day: the live Final Light look — off-white ground, grey bands, teal signal, teal → navy actions. */
html[data-theme="studio"]:not([data-final="telemetry"]) .dd {
  --dd-ink: #0b1622; --dd-mid: #2e3b4a; --dd-muted: #4a5a6b; --dd-dim: #4a5a6b;
  --dd-line: rgb(11 22 34 / .11); --dd-line2: rgb(11 22 34 / .17); --dd-line3: rgb(11 22 34 / .26);
  --dd-panel: #ffffff; --dd-panel2: #f6f8fa; --dd-well: #eef1f5; --dd-band: #eef2f7; --dd-ground: #f7f9fb;
  --dd-acc: #0c6a84; --dd-acc-rgb: 12 106 132; --dd-acc-hi: #155e75; --dd-acc-ink: #ffffff;
  --dd-ok: #036b4e; --dd-ok-rgb: 3 107 78;
  --dd-code-bg: #0b1622; --dd-code-ink: #e7edf4; --dd-code-bar: #10202f;
  --dd-r: 16px; --dd-r-sm: 12px; --dd-r-btn: 999px; --dd-btn-font: var(--dd-sans);
  --dd-head-grad: linear-gradient(90deg, #0e7490 0%, #1e40af 100%);
  --dd-btn-bg: linear-gradient(90deg, #0e7490 0%, #1e40af 100%); --dd-btn-fg: #ffffff; --dd-btn-line: transparent;
  --dd-btn-hi: linear-gradient(90deg, #155e75 0%, #1e3a8a 100%); --dd-btn-hi-line: transparent;
  --dd-sheen: 0 0 0 0 transparent;
  --dd-shadow: 0 1px 2px rgb(11 22 34 / .06), 0 10px 26px -18px rgb(11 22 34 / .45);
  --dd-card-shadow: 0 1px 2px rgb(11 22 34 / .05), 0 8px 22px -18px rgb(11 22 34 / .4);
}
/* Cloud: the soft app-store light — lavender-grey ground, white cards with wide soft shadows, one action blue. */
html[data-theme="studio"][data-final="cloud"] .dd {
  --dd-ink: #090a0d; --dd-mid: #474a56; --dd-muted: #5f6270; --dd-dim: #5f6270;
  --dd-line: rgb(24 27 38 / .07); --dd-line2: rgb(24 27 38 / .12); --dd-line3: rgb(24 27 38 / .2);
  --dd-panel: #ffffff; --dd-panel2: #f7f8fb; --dd-well: #f1f2f7; --dd-band: #fafbfd; --dd-ground: #f5f5f7;
  --dd-acc: #0060c4; --dd-acc-rgb: 0 96 196; --dd-acc-hi: #0058b0; --dd-acc-ink: #ffffff;
  --dd-ok: #006b4f; --dd-ok-rgb: 0 107 79;
  --dd-code-bg: #1d1d1f; --dd-code-ink: #f2f2f5; --dd-code-bar: #2c2c2e;
  --dd-r: 24px; --dd-r-sm: 14px; --dd-r-btn: 16px; --dd-btn-font: var(--dd-sans);
  --dd-head-ink: #555864;
  --dd-btn-bg: #0071e3; --dd-btn-fg: #ffffff; --dd-btn-line: #0071e3;
  --dd-btn-hi: #0066d6; --dd-btn-hi-line: #0066d6;
  --dd-sheen: 0 0 0 0 transparent;
  --dd-shadow: 0 20px 55px rgb(70 72 105 / .07);
  --dd-card-shadow: 0 20px 55px rgb(70 72 105 / .07);
}
/* Cloud Dark: Cloud on Telemetry's charcoal lifted 10%; the same action blue. */
html[data-theme="studio"][data-final="cloud"][data-cloud="dark"] .dd {
  --dd-ink: #ffffff; --dd-mid: #cfd1d8; --dd-muted: #b4b7c0; --dd-dim: #a7abb5;
  --dd-line: rgb(255 255 255 / .07); --dd-line2: rgb(255 255 255 / .12); --dd-line3: rgb(255 255 255 / .2);
  --dd-panel: #2c2e32; --dd-panel2: #313338; --dd-well: #1c1d20; --dd-band: #27292c; --dd-ground: #232426;
  --dd-acc: #9ccbff; --dd-acc-rgb: 156 203 255; --dd-acc-hi: #b8d9ff; --dd-acc-ink: #0a1a2e;
  --dd-ok: #7ee2b8; --dd-ok-rgb: 126 226 184;
  --dd-code-bg: #1c1d20; --dd-code-ink: #eef0f4; --dd-code-bar: #26282b;
  --dd-head-ink: #a9acb6;
  --dd-shadow: 0 20px 55px rgb(0 0 0 / .34);
  --dd-card-shadow: 0 20px 55px rgb(0 0 0 / .3);
}

/* ── Base ───────────────────────────────────────────────────────────────────────────────────── */
html { scroll-padding-top: 104px; }
@media (max-width: 1023px) { html { scroll-padding-top: 148px; } }
.dd *, .dd *::before, .dd *::after { box-sizing: border-box; }
.dd :focus-visible { outline: 2px solid var(--dd-acc); outline-offset: 3px; border-radius: 4px; }
.dd a { color: inherit; text-decoration: none; }
.dd p, .dd h1, .dd .dd-headline, .dd h2, .dd h3, .dd h4, .dd h5, .dd ol, .dd ul, .dd dl, .dd dd, .dd figure, .dd pre { margin: 0; }
.dd ol, .dd ul { padding: 0; list-style: none; }
.dd button { font: inherit; color: inherit; }
.dd [hidden] { display: none !important; }
.dd .dd-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.dd .dd-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.dd .dd-wrap { width: 100%; max-width: 1320px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 32px); }
.dd .dd-i { display: block; width: 18px; height: 18px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.dd .dd-i-lg { width: 22px; height: 22px; }

/* Type */
.dd .dd-headline, .dd h2, .dd h3, .dd h4, .dd h5 { font-family: var(--dd-display); color: var(--dd-ink); text-wrap: balance; }
.dd .dd-headline { font-size: clamp(2.3rem, 4.6vw, 3.7rem); line-height: 1.02; font-weight: 600; letter-spacing: -.045em; }
.dd h2 { font-size: clamp(1.75rem, 3vw, 2.45rem); line-height: 1.08; font-weight: 600; letter-spacing: -.035em; }
.dd h3 { font-size: clamp(1.32rem, 2vw, 1.6rem); line-height: 1.2; font-weight: 600; letter-spacing: -.025em; }
.dd h4 { font-size: 1.04rem; line-height: 1.35; font-weight: 600; letter-spacing: -.012em; }
.dd h5 { font-size: 1rem; line-height: 1.35; font-weight: 600; letter-spacing: -.01em; }
.dd .dd-acc { color: var(--dd-acc); }
.dd .dd-eyebrow { display: inline-flex; gap: 8px; margin-bottom: 16px; font-family: var(--dd-mono); font-size: 11.5px; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase; color: var(--dd-acc); }
.dd .dd-eyebrow::before { content: "["; color: var(--dd-muted); letter-spacing: 0; }
.dd .dd-eyebrow::after { content: "]"; color: var(--dd-muted); letter-spacing: 0; }
.dd .dd-lede { margin-top: 18px; max-width: 64ch; font-size: clamp(1.02rem, 1.35vw, 1.14rem); line-height: 1.65; color: var(--dd-mid); text-wrap: pretty; }
.dd p { text-wrap: pretty; }
.dd code { font-family: var(--dd-mono); font-size: .86em; padding: .08em .38em; border: 1px solid var(--dd-line2); border-radius: 4px;
  background: var(--dd-well); color: var(--dd-ink); overflow-wrap: break-word; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.dd code.dd-nw { white-space: nowrap; }
.dd strong { font-weight: 650; color: var(--dd-ink); }
.dd .dd-link { color: var(--dd-acc); text-decoration: underline; text-decoration-color: rgb(var(--dd-acc-rgb) / .45); text-underline-offset: 3px; }
.dd .dd-link:hover { text-decoration-color: currentColor; }
.dd .dd-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.dd .dd-chips li { padding: 2px 9px; border: 1px solid var(--dd-line2); border-radius: 4px; background: var(--dd-panel2);
  font-family: var(--dd-mono); font-size: 11.5px; color: var(--dd-mid); white-space: nowrap; }

/* Buttons */
.dd .dd-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 40px; padding: 0 16px;
  border: 1px solid transparent; border-radius: var(--dd-r-btn); font-family: var(--dd-btn-font); font-size: 13px; font-weight: 600;
  letter-spacing: .01em; white-space: nowrap; cursor: pointer; transition: background-color .2s, border-color .2s, color .2s; }
.dd .dd-btn .dd-i { width: 15px; height: 15px; stroke-width: 2.1; transition: transform .2s var(--dd-ease); }
.dd .dd-btn:hover .dd-i { transform: translateX(2px); }
.dd .dd-btn-p { background: var(--dd-btn-bg); color: var(--dd-btn-fg); border-color: var(--dd-btn-line); }
.dd .dd-btn-p:hover { background: var(--dd-btn-hi); border-color: var(--dd-btn-hi-line); }
.dd .dd-btn-p .dd-i { stroke-width: 2.2; }
.dd .dd-btn-p:hover .dd-i { transform: none; }
.dd .dd-btn-s { background: var(--dd-panel); color: var(--dd-ink); border-color: var(--dd-line3); box-shadow: var(--dd-sheen); }
.dd .dd-btn-s:hover { color: var(--dd-acc); border-color: var(--dd-acc); background: var(--dd-panel2); }

/* ── Hero ───────────────────────────────────────────────────────────────────────────────────── */
.dd .dd-hero { padding-block: calc(var(--dd-top) + clamp(36px, 5vw, 70px)) clamp(36px, 4.5vw, 56px); border-bottom: 1px solid var(--dd-line); }
.dd .dd-cards { display: grid; gap: 14px; grid-template-columns: minmax(0, 1fr); margin-top: clamp(28px, 4vw, 44px); }
@media (min-width: 900px) { .dd .dd-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.dd .dd-card { display: flex; flex-direction: column; gap: 14px; padding: 20px; background: var(--dd-panel); border: 1px solid var(--dd-line);
  border-radius: var(--dd-r); box-shadow: var(--dd-card-shadow); transition: border-color .2s; }
.dd .dd-card:hover { border-color: rgb(var(--dd-acc-rgb) / .45); }
.dd .dd-card-main { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 4px 14px; align-items: center; }
.dd .dd-card-main .dd-pico { grid-row: span 2; }
.dd .dd-card-n { font-family: var(--dd-display); font-size: 1.2rem; font-weight: 600; letter-spacing: -.02em; color: var(--dd-ink); }
.dd .dd-card-t { font-size: 14px; line-height: 1.5; color: var(--dd-mid); }
.dd .dd-card-l { display: flex; flex-wrap: wrap; gap: 4px 16px; margin-top: auto; padding-top: 12px; border-top: 1px solid var(--dd-line); }
.dd .dd-card-l a { display: inline-flex; align-items: center; gap: 5px; min-height: 30px; font-family: var(--dd-mono); font-size: 12px; font-weight: 600;
  letter-spacing: .02em; color: var(--dd-acc); }
.dd .dd-card-l a .dd-i { width: 13px; height: 13px; stroke-width: 2.1; transition: transform .2s var(--dd-ease); }
.dd .dd-card-l a:hover .dd-i { transform: translateX(2px); }
.dd .dd-also { display: flex; gap: 12px; align-items: flex-start; margin-top: 16px; padding: 14px 16px; border: 1px dashed var(--dd-line3); border-radius: var(--dd-r);
  font-size: 14.5px; color: var(--dd-mid); }
.dd .dd-also > .dd-i { margin-top: 2px; color: var(--dd-acc); }
.dd .dd-pico { display: inline-grid; place-items: center; width: 44px; height: 44px; flex: none; border-radius: var(--dd-r-sm);
  color: var(--dd-acc); background: rgb(var(--dd-acc-rgb) / .1); border: 1px solid rgb(var(--dd-acc-rgb) / .35); }

/* ── Layout: contents rail + content ────────────────────────────────────────────────────────── */
.dd .dd-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0 clamp(32px, 4vw, 56px); align-items: start;
  padding-bottom: clamp(70px, 8vw, 110px); }
@media (min-width: 1024px) { .dd .dd-layout { grid-template-columns: 244px minmax(0, 1fr); } }
.dd .dd-content { min-width: 0; }

/* The rail */
.dd .dd-side { font-size: 14px; }
.dd .dd-side-in { padding: 28px 0 8px; }
@media (min-width: 1024px) {
  .dd .dd-side { position: sticky; top: calc(var(--dd-top) + 20px); max-height: calc(100vh - var(--dd-top) - 36px); overflow-y: auto;
    overscroll-behavior: contain; scrollbar-width: thin; margin-top: 8px; }
}
.dd .dd-side-k { margin: 18px 0 6px; font-family: var(--dd-mono); font-size: 10.5px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--dd-dim); }
.dd .dd-side-in > .dd-side-k:first-child { margin-top: 0; }
.dd .dd-side a { display: flex; align-items: center; gap: 8px; min-height: 32px; padding: 4px 10px; border-left: 2px solid var(--dd-line);
  color: var(--dd-muted); transition: color .15s, border-color .15s, background-color .15s; }
.dd .dd-side a:hover { color: var(--dd-ink); border-left-color: var(--dd-line3); }
.dd .dd-side a.is-current { color: var(--dd-ink); border-left-color: var(--dd-acc); background: rgb(var(--dd-acc-rgb) / .06); }
.dd .dd-side-g, .dd .dd-side-x { margin-top: 18px; }
.dd .dd-side-p { font-family: var(--dd-display); font-size: 14.5px; font-weight: 600; letter-spacing: -.01em; color: var(--dd-ink) !important; }
.dd .dd-side-p .dd-i { width: 16px; height: 16px; color: var(--dd-acc); }
.dd .dd-side-g ul a, .dd .dd-side-x ul a { padding-left: 34px; font-size: 13.5px; }
.dd .dd-side-n { margin-left: auto; font-family: var(--dd-mono); font-size: 11px; color: var(--dd-dim); }
/* With JS on wide screens, only the current product's list stays open. */
@media (min-width: 1024px) {
  .dd.dd-js .dd-side-g:not(.is-open) ul { display: none; }
}

/* The phone/tablet contents bar and drawer (only once developer-doc-page.js runs). */
.dd .dd-mbar { display: none; }
@media (max-width: 1023px) {
  .dd.dd-js .dd-mbar { display: block; position: sticky; top: var(--dd-top); z-index: 30; background: var(--dd-ground);
    border-bottom: 1px solid var(--dd-line); box-shadow: 0 12px 24px -20px rgb(0 0 0 / .6); }
  .dd .dd-mbar-in { display: flex; align-items: center; gap: 12px; min-height: 52px; }
  .dd .dd-mbar-btn { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 0 14px; flex: none; border: 1px solid var(--dd-line3);
    border-radius: var(--dd-r-btn); background: var(--dd-panel); font-family: var(--dd-btn-font); font-size: 13px; font-weight: 600; cursor: pointer; }
  .dd .dd-mbar-btn[aria-expanded="true"] { border-color: var(--dd-acc); color: var(--dd-acc); }
  .dd .dd-mbar-cur { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: var(--dd-mono); font-size: 12px; color: var(--dd-muted); }
  .dd.dd-js .dd-side { position: fixed; z-index: 29; top: calc(var(--dd-top) + 53px); left: 0; right: 0; bottom: 0; overflow-y: auto; overscroll-behavior: contain;
    padding: 0 clamp(16px, 4vw, 32px) 32px; background: var(--dd-ground); border-top: 1px solid var(--dd-line);
    visibility: hidden; opacity: 0; transform: translateY(-6px); transition: opacity .18s ease, transform .18s ease, visibility .18s; }
  .dd.dd-js .dd-side.is-open { visibility: visible; opacity: 1; transform: none; }
  .dd.dd-js .dd-side-in { max-width: 560px; }
  /* Without JS the list simply sits above the content. */
  .dd:not(.dd-js) .dd-side { padding-bottom: 12px; border-bottom: 1px solid var(--dd-line); }
}

/* ── Sections ───────────────────────────────────────────────────────────────────────────────── */
.dd .dd-sub { padding-top: clamp(40px, 5vw, 60px); }
.dd .dd-sub > h3 + *, .dd .dd-sub > h2 + * { margin-top: 14px; }
.dd .dd-sub > p { max-width: 72ch; color: var(--dd-mid); }
.dd .dd-sub > p + p { margin-top: 12px; }
.dd .dd-sub-lede { max-width: 72ch; color: var(--dd-mid); }
.dd .dd-sub-lede + * { margin-top: 22px; }
.dd .dd-h2s { scroll-margin-top: 0; }
.dd .dd-h4 { margin: 30px 0 12px; font-family: var(--dd-mono); font-size: 11.5px; font-weight: 600; letter-spacing: .13em; text-transform: uppercase; color: var(--dd-muted); }
.dd .dd-sub-lede + .dd-h4 { margin-top: 26px; }
.dd .dd-first { padding-top: clamp(30px, 4vw, 44px); }

/* Product head */
.dd .dd-prod { margin-top: clamp(64px, 8vw, 96px); }
.dd .dd-phead { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 16px 18px; align-items: start; padding: clamp(20px, 3vw, 28px);
  background: var(--dd-panel); border: 1px solid var(--dd-line); border-top: 2px solid var(--dd-acc); border-radius: var(--dd-r); box-shadow: var(--dd-shadow); }
.dd .dd-phead .dd-pico { width: 52px; height: 52px; }
.dd .dd-phead .dd-eyebrow { margin-bottom: 8px; }
.dd .dd-ptag { margin-top: 8px; color: var(--dd-mid); }
.dd .dd-acts { display: flex; flex-wrap: wrap; gap: 10px; }
.dd .dd-dl-row { margin-top: 2px; }
.dd .dd-callout { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px 24px; margin-bottom: 16px; padding: 18px;
  background: rgb(var(--dd-acc-rgb) / .05); border: 1px solid rgb(var(--dd-acc-rgb) / .3); border-radius: var(--dd-r); }
.dd .dd-callout > div:first-child { flex: 1 1 360px; min-width: 0; }
.dd .dd-callout p { font-size: 14.5px; color: var(--dd-mid); }
.dd .dd-callout .dd-callout-h { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; font-family: var(--dd-display); font-size: 1.02rem; font-weight: 600; color: var(--dd-ink); }
.dd .dd-callout-h .dd-i { color: var(--dd-acc); }
.dd .dd-phead-r { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
  padding-top: 16px; border-top: 1px solid var(--dd-line); }
@media (min-width: 760px) { .dd .dd-phead-r { grid-column: 2; } }

/* Steps */
.dd .dd-steps { counter-reset: dd-step; display: grid; gap: 0; }
.dd .dd-step { counter-increment: dd-step; position: relative; display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 16px; padding-bottom: 26px; }
.dd .dd-step::before { content: counter(dd-step); display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid rgb(var(--dd-acc-rgb) / .5); background: rgb(var(--dd-acc-rgb) / .1); color: var(--dd-acc);
  font-family: var(--dd-mono); font-size: 13px; font-weight: 700; }
.dd .dd-step:not(:last-child)::after { content: ""; position: absolute; left: 16.5px; top: 40px; bottom: 6px; width: 1px; background: var(--dd-line2); }
.dd .dd-step:last-child { padding-bottom: 0; }
.dd .dd-step-b { min-width: 0; padding-top: 5px; }
.dd .dd-step-b > * + * { margin-top: 10px; }
.dd .dd-step-b > p { color: var(--dd-mid); }
.dd .dd-bul { display: grid; gap: 6px; color: var(--dd-mid); }
.dd .dd-bul li { position: relative; padding-left: 18px; }
.dd .dd-bul li::before { content: ""; position: absolute; left: 3px; top: .68em; width: 6px; height: 6px; border-radius: 1px; background: var(--dd-acc); opacity: .8; }

/* Code */
.dd .dd-code { overflow: hidden; border: 1px solid var(--dd-line2); border-radius: var(--dd-r-sm); background: var(--dd-code-bg); }
.dd .dd-code-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 34px; padding: 0 6px 0 12px;
  background: var(--dd-code-bar); border-bottom: 1px solid rgb(255 255 255 / .06); }
.dd .dd-code-lang { font-family: var(--dd-mono); font-size: 10.5px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: #8d95a1; }
.dd .dd-copy { display: none; align-items: center; gap: 6px; min-height: 28px; padding: 0 9px; border: 1px solid transparent; border-radius: 5px;
  background: none; font-family: var(--dd-mono); font-size: 11.5px; font-weight: 600; color: #aeb5c0; cursor: pointer; transition: color .15s, border-color .15s; }
.dd.dd-js .dd-copy { display: inline-flex; }
.dd .dd-copy .dd-i { width: 14px; height: 14px; }
.dd .dd-copy:hover { color: #ffffff; border-color: rgb(255 255 255 / .18); }
.dd .dd-copy.is-done { color: #6ee7a0; }
.dd .dd-code pre { margin: 0; padding: 14px 16px; overflow-x: auto; font-family: var(--dd-mono); font-size: 13px; line-height: 1.65; color: var(--dd-code-ink); tab-size: 2; }
.dd .dd-code pre code { padding: 0; border: 0; background: none; color: inherit; font-size: inherit; overflow-wrap: normal; white-space: pre; }

/* Install options (one row each: the commands are long) and pairs */
.dd .dd-opts { display: grid; gap: 10px; grid-template-columns: minmax(0, 1fr); }
.dd .dd-opt { display: grid; gap: 10px 20px; grid-template-columns: minmax(0, 1fr); padding: 16px; background: var(--dd-panel); border: 1px solid var(--dd-line);
  border-radius: var(--dd-r); box-shadow: var(--dd-card-shadow); }
@media (min-width: 760px) { .dd .dd-opt { grid-template-columns: 150px minmax(0, 1fr); align-items: start; } .dd .dd-opt-note { grid-column: 2; } }
.dd .dd-opt-k { display: flex; flex-direction: column; gap: 4px; padding-top: 4px; font-family: var(--dd-display); font-weight: 600; color: var(--dd-ink); }
.dd .dd-opt-m { font-family: var(--dd-mono); font-size: 11px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--dd-acc); }
.dd .dd-opt-note { margin-top: -2px; font-size: 13.5px; color: var(--dd-muted); }
.dd .dd-pair { display: grid; gap: 14px; grid-template-columns: minmax(0, 1fr); }
.dd .dd-pair-k { margin-bottom: 8px; font-size: 14px; color: var(--dd-mid); }
.dd .dd-two { display: grid; gap: 0 28px; grid-template-columns: minmax(0, 1fr); align-items: start; }
@media (min-width: 1100px) { .dd .dd-two { grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); } }

/* Tables */
.dd .dd-table { overflow-x: auto; border: 1px solid var(--dd-line); border-radius: var(--dd-r-sm); background: var(--dd-panel); box-shadow: var(--dd-card-shadow); }
.dd .dd-table table { width: 100%; border-collapse: collapse; font-size: 14px; line-height: 1.5; }
.dd .dd-table thead th { padding: 10px 14px; text-align: left; vertical-align: bottom; background: var(--dd-panel2); border-bottom: 1px solid var(--dd-line2);
  font-family: var(--dd-mono); font-size: 10.5px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--dd-muted); white-space: nowrap; }
.dd .dd-table tbody th, .dd .dd-table td { padding: 11px 14px; text-align: left; vertical-align: top; border-top: 1px solid var(--dd-line); color: var(--dd-mid); }
.dd .dd-table tbody tr:first-child > * { border-top: 0; }
.dd .dd-table tbody th { font-weight: 600; color: var(--dd-ink); width: 38%; min-width: 180px; }
.dd .dd-table-2 tbody th { width: 34%; }
.dd .dd-table-tools table { min-width: 760px; }
.dd .dd-table-tools tbody th { width: 18%; min-width: 140px; }
.dd .dd-table-tools td:nth-child(2), .dd .dd-table-tools td:last-child { white-space: nowrap; }
.dd .dd-table-cmp table { min-width: 820px; }
.dd .dd-table-cmp tbody th { width: 16%; min-width: 120px; font-family: var(--dd-mono); font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--dd-muted); }
.dd .dd-table-cmp thead th:not(:first-child) { color: var(--dd-ink); font-size: 11.5px; }
.dd .dd-table tbody tr:hover > * { background: rgb(var(--dd-acc-rgb) / .03); }
@media (max-width: 599px) { .dd .dd-table tbody th { width: 36%; min-width: 112px; } .dd .dd-table tbody th, .dd .dd-table td { padding: 10px 12px; } }
/* Errors reference: a narrow status column, then type / code, then what to do */
.dd .dd-table-err table { min-width: 640px; }
.dd .dd-table-err tbody th { width: 9%; min-width: 56px; font-family: var(--dd-mono); }
.dd .dd-table-err td:nth-child(2) { width: 34%; }
.dd .dd-table-err, .dd #router-errors + p + .dd-code { margin-top: 12px; }
.dd .dd-table + .dd-api-note { margin-top: 10px; }

/* Use cases */
.dd .dd-uses { display: grid; gap: 10px; grid-template-columns: minmax(0, 1fr); counter-reset: dd-use; }
@media (min-width: 680px) { .dd .dd-uses { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1240px) { .dd .dd-uses { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.dd .dd-uses li { counter-increment: dd-use; position: relative; padding: 16px 16px 16px 50px; background: var(--dd-panel); border: 1px solid var(--dd-line);
  border-radius: var(--dd-r); box-shadow: var(--dd-card-shadow); font-size: 14px; color: var(--dd-mid); }
.dd .dd-uses li::before { content: counter(dd-use, decimal-leading-zero); position: absolute; left: 16px; top: 17px; font-family: var(--dd-mono); font-size: 11.5px; font-weight: 700; color: var(--dd-acc); }
.dd .dd-use-n { margin-bottom: 4px; font-family: var(--dd-display); font-size: 15px; font-weight: 600; letter-spacing: -.01em; color: var(--dd-ink); }

/* Features */
.dd .dd-filter-box { display: none; }
.dd.dd-js .dd-filter-box { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; margin-bottom: 14px; }
.dd .dd-filter { position: relative; display: flex; align-items: center; flex: 1 1 320px; max-width: 520px; }
.dd .dd-filter .dd-i { position: absolute; left: 13px; color: var(--dd-muted); pointer-events: none; }
.dd .dd-filter input { width: 100%; min-height: 44px; padding: 0 14px 0 40px; border: 1px solid var(--dd-line3); border-radius: var(--dd-r-btn);
  background: var(--dd-panel); color: var(--dd-ink); font: 500 14px/1.2 var(--dd-sans); outline: none; transition: border-color .15s, box-shadow .15s; }
.dd .dd-filter input::placeholder { color: var(--dd-dim); }
.dd .dd-filter input:focus { border-color: var(--dd-acc); box-shadow: 0 0 0 3px rgb(var(--dd-acc-rgb) / .15); }
.dd .dd-filter-n { font-family: var(--dd-mono); font-size: 12px; color: var(--dd-muted); }
.dd .dd-jump ul { display: flex; flex-wrap: wrap; gap: 6px; }
.dd .dd-jump a { display: inline-flex; align-items: center; gap: 7px; min-height: 32px; padding: 0 11px; border: 1px solid var(--dd-line2); border-radius: 999px;
  background: var(--dd-panel); font-size: 12.5px; font-weight: 600; color: var(--dd-mid); transition: color .15s, border-color .15s; }
.dd .dd-jump a span { font-family: var(--dd-mono); font-size: 11px; color: var(--dd-dim); }
.dd .dd-jump a:hover { color: var(--dd-acc); border-color: rgb(var(--dd-acc-rgb) / .5); }
.dd .dd-fg { padding-top: 30px; }
.dd .dd-fg > h4 { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; font-size: 1.08rem; }
.dd .dd-fg-n { padding: 1px 7px; border: 1px solid var(--dd-line2); border-radius: 4px; font-family: var(--dd-mono); font-size: 11px; font-weight: 600; color: var(--dd-muted); }
.dd .dd-feats { display: grid; gap: 10px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .dd .dd-feats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.dd .dd-feat { display: flex; flex-direction: column; gap: 6px; padding: 16px 18px; background: var(--dd-panel); border: 1px solid var(--dd-line);
  border-radius: var(--dd-r); box-shadow: var(--dd-card-shadow); transition: border-color .2s; }
.dd .dd-feat:hover { border-color: var(--dd-line3); }
.dd .dd-feat-n { font-family: var(--dd-display); font-size: 15.5px; font-weight: 600; letter-spacing: -.012em; color: var(--dd-ink); }
.dd .dd-feat-d { font-size: 14.5px; line-height: 1.55; color: var(--dd-mid); }
.dd .dd-feat-how { display: flex; gap: 10px; align-items: baseline; margin-top: auto; padding-top: 10px; border-top: 1px dashed var(--dd-line2);
  font-size: 13.5px; line-height: 1.55; color: var(--dd-muted); }
.dd .dd-how-k { flex: none; font-family: var(--dd-mono); font-size: 10px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--dd-acc); }
.dd .dd-empty { margin-top: 18px; padding: 18px; border: 1px dashed var(--dd-line3); border-radius: var(--dd-r); color: var(--dd-muted); text-align: center; }

/* Notes */
.dd .dd-note { margin-top: 26px; padding: 16px 18px; border: 1px solid rgb(var(--dd-acc-rgb) / .3); border-left: 3px solid var(--dd-acc);
  border-radius: var(--dd-r-sm); background: rgb(var(--dd-acc-rgb) / .05); }
.dd .dd-note-h { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-family: var(--dd-mono); font-size: 11.5px; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase; color: var(--dd-acc); }
.dd .dd-note ul { display: grid; gap: 5px; }
.dd .dd-note li { position: relative; padding-left: 16px; font-size: 14.5px; color: var(--dd-mid); }
.dd .dd-note li::before { content: "\203A"; position: absolute; left: 2px; font-family: var(--dd-mono); font-weight: 700; color: var(--dd-acc); }

/* Which product + how they fit */
.dd .dd-fit { margin-top: 18px; padding: clamp(16px, 2.5vw, 24px); background: var(--dd-band); border: 1px solid var(--dd-line); border-radius: var(--dd-r); }
.dd .dd-fit-g { display: grid; gap: 10px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 900px) { .dd .dd-fit-g { grid-template-columns: minmax(0, 1.1fr) 36px minmax(0, .95fr) 36px minmax(0, .95fr); align-items: center; gap: 0; } }
.dd .dd-fit-col { display: grid; gap: 8px; }
.dd .dd-fit-k { font-family: var(--dd-mono); font-size: 10.5px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--dd-dim); }
.dd .dd-fit-box { display: grid; gap: 8px; padding: 10px; border: 1px dashed var(--dd-line3); border-radius: var(--dd-r-sm); }
.dd .dd-fit-bk { font-family: var(--dd-mono); font-size: 10.5px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--dd-muted); }
.dd .dd-fit-cap { font-size: 12.5px; color: var(--dd-muted); }
.dd .dd-fit-n { display: flex; align-items: flex-start; gap: 10px; padding: 10px 12px; background: var(--dd-panel); border: 1px solid var(--dd-line2);
  border-radius: var(--dd-r-sm); font-weight: 600; font-size: 14px; color: var(--dd-ink); }
.dd .dd-fit-n .dd-i { margin-top: 1px; color: var(--dd-acc); }
.dd .dd-fit-n small { display: block; margin-top: 2px; font-weight: 500; font-size: 12.5px; line-height: 1.45; color: var(--dd-muted); }
.dd .dd-fit-hot { border-color: rgb(var(--dd-acc-rgb) / .55); box-shadow: 0 0 0 3px rgb(var(--dd-acc-rgb) / .08); }
.dd .dd-fit-arr { position: relative; height: 22px; }
.dd .dd-fit-arr::before { content: ""; position: absolute; left: 50%; top: 2px; bottom: 6px; width: 1.5px; background: var(--dd-line3); transform: translateX(-50%); }
.dd .dd-fit-arr::after { content: ""; position: absolute; left: 50%; bottom: 2px; width: 8px; height: 8px; border-right: 1.5px solid var(--dd-line3);
  border-bottom: 1.5px solid var(--dd-line3); transform: translateX(-50%) rotate(45deg); }
@media (min-width: 900px) {
  .dd .dd-fit-arr { height: 100%; min-height: 40px; }
  .dd .dd-fit-arr::before { left: 6px; right: 8px; top: 50%; bottom: auto; width: auto; height: 1.5px; transform: translateY(-50%); }
  .dd .dd-fit-arr::after { left: auto; right: 6px; top: 50%; bottom: auto; transform: translateY(-50%) rotate(-45deg); }
}
.dd .dd-fit figcaption { margin-top: 14px; font-size: 13.5px; color: var(--dd-muted); }

/* Air Router API styles */
.dd .dd-api { display: grid; gap: 14px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 1180px) { .dd .dd-api { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; } }
.dd .dd-api-c { display: grid; gap: 12px; padding: 18px; background: var(--dd-panel); border: 1px solid var(--dd-line); border-radius: var(--dd-r); box-shadow: var(--dd-card-shadow); }
.dd .dd-api-k { font-family: var(--dd-display); font-size: 1.05rem; font-weight: 600; color: var(--dd-ink); }
.dd .dd-api-k span { display: block; margin-top: 2px; font-family: var(--dd-sans); font-size: 13px; font-weight: 500; color: var(--dd-muted); }
.dd .dd-api-k2 { margin-top: 4px; font-size: .95rem; }
.dd .dd-api-note { font-size: 13.5px; color: var(--dd-muted); }
.dd .dd-kv { display: grid; gap: 0; border: 1px solid var(--dd-line); border-radius: var(--dd-r-sm); overflow: hidden; }
.dd .dd-kv div { display: grid; grid-template-columns: 88px minmax(0, 1fr); gap: 10px; padding: 8px 12px; border-top: 1px solid var(--dd-line); font-size: 13.5px; }
.dd .dd-kv div:first-child { border-top: 0; }
.dd .dd-kv dt { font-family: var(--dd-mono); font-size: 10.5px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--dd-muted); padding-top: 3px; }
.dd .dd-kv dd { color: var(--dd-mid); }

/* Troubleshooting */
.dd .dd-faqs { display: grid; gap: 8px; }
.dd .dd-faq { background: var(--dd-panel); border: 1px solid var(--dd-line); border-radius: var(--dd-r-sm); box-shadow: var(--dd-card-shadow); }
.dd .dd-faq summary { display: flex; align-items: center; justify-content: space-between; gap: 14px; min-height: 52px; padding: 12px 16px; cursor: pointer;
  list-style: none; font-family: var(--dd-display); font-weight: 600; color: var(--dd-ink); }
.dd .dd-faq summary::-webkit-details-marker { display: none; }
.dd .dd-faq summary::after { content: "+"; flex: none; font-family: var(--dd-mono); font-size: 18px; font-weight: 500; color: var(--dd-acc); transition: transform .2s var(--dd-ease); }
.dd .dd-faq[open] summary::after { transform: rotate(45deg); }
.dd .dd-faq p { padding: 0 16px 16px; color: var(--dd-mid); font-size: 14.5px; }

/* Resources */
.dd .dd-ref { margin-top: clamp(40px, 6vw, 72px); }
.dd .dd-res { display: grid; gap: 10px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 680px) { .dd .dd-res { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1240px) { .dd .dd-res { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.dd .dd-res a { display: grid; grid-template-columns: 36px minmax(0, 1fr); grid-template-rows: auto 1fr; gap: 2px 12px; align-items: start; height: 100%; padding: 16px; background: var(--dd-panel);
  border: 1px solid var(--dd-line); border-radius: var(--dd-r); box-shadow: var(--dd-card-shadow); transition: border-color .2s; }
.dd .dd-res a:hover { border-color: rgb(var(--dd-acc-rgb) / .5); }
.dd .dd-res-i { grid-row: span 2; align-self: start; display: grid; place-items: center; width: 36px; height: 36px; border-radius: var(--dd-r-sm); color: var(--dd-acc);
  background: rgb(var(--dd-acc-rgb) / .1); }
.dd .dd-res-n { font-family: var(--dd-display); font-weight: 600; color: var(--dd-ink); }
.dd .dd-res-d { font-size: 13.5px; color: var(--dd-muted); }

/* ── Coming soon (AirCode Studio is not released yet) ───────────────────────────────────────── */
.dd .dd-soon { display: inline-flex; align-items: center; gap: 7px; min-height: 30px; font-family: var(--dd-mono); font-size: 12px; font-weight: 600;
  letter-spacing: .02em; color: var(--dd-muted); }
.dd .dd-soon::before, .dd .dd-btn-soon::before { content: ""; width: 7px; height: 7px; flex: none; border-radius: 50%; background: currentColor;
  animation: dd-soon 2.4s ease-in-out infinite; }
.dd .dd-soon::before { background: var(--dd-acc); }
.dd .dd-btn-soon { cursor: default; user-select: none; }
.dd .dd-btn-soon:hover { background: var(--dd-btn-bg); border-color: var(--dd-btn-line); }
@keyframes dd-soon { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

/* ── Air Router setup (the old Setup Guide, since 2026-10-19) ───────────────────────────────── */
.dd .dd-tip { display: flex; gap: 10px; align-items: flex-start; margin-top: 14px; font-size: 14px; line-height: 1.55; color: var(--dd-muted); }
.dd .dd-tip > .dd-i { width: 16px; height: 16px; margin-top: 2px; color: var(--dd-acc); }
.dd .dd-api-lede { max-width: 72ch; margin: -2px 0 14px; color: var(--dd-mid); }
.dd .dd-more { margin-top: 10px; }
.dd .dd-more summary { display: inline-flex; align-items: center; gap: 6px; min-height: 32px; cursor: pointer; list-style: none; font-size: 14px; font-weight: 600; color: var(--dd-acc); }
.dd .dd-more summary::-webkit-details-marker { display: none; }
.dd .dd-more summary::before { content: "+"; display: inline-grid; place-items: center; width: 18px; height: 18px; border: 1px solid rgb(var(--dd-acc-rgb) / .45);
  border-radius: 4px; font-family: var(--dd-mono); font-size: 13px; line-height: 1; transition: transform .2s var(--dd-ease); }
.dd .dd-more[open] summary::before { transform: rotate(45deg); }
.dd .dd-more-b { display: grid; gap: 10px; margin-top: 8px; }
.dd .dd-more-b > p { color: var(--dd-mid); font-size: 14.5px; }

/* Get started: the two ways to connect */
.dd .dd-paths { display: grid; gap: 10px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) { .dd .dd-paths { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.dd .dd-path { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 2px 14px; align-content: start; padding: 16px; background: var(--dd-panel);
  border: 1px solid var(--dd-line); border-radius: var(--dd-r); box-shadow: var(--dd-card-shadow); transition: border-color .2s; }
.dd .dd-path:hover { border-color: rgb(var(--dd-acc-rgb) / .55); }
.dd .dd-path-i { grid-row: span 4; display: grid; place-items: center; width: 40px; height: 40px; border-radius: var(--dd-r-sm); color: var(--dd-acc);
  background: rgb(var(--dd-acc-rgb) / .1); border: 1px solid rgb(var(--dd-acc-rgb) / .35); }
.dd .dd-path-k { font-family: var(--dd-mono); font-size: 10.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--dd-acc); }
.dd .dd-path-n { font-family: var(--dd-display); font-size: 1.06rem; font-weight: 600; letter-spacing: -.015em; color: var(--dd-ink); }
.dd .dd-path-d { margin-top: 2px; font-size: 14px; line-height: 1.55; color: var(--dd-mid); }
.dd .dd-path-go { display: inline-flex; align-items: center; gap: 6px; margin-top: 8px; font-family: var(--dd-mono); font-size: 12px; font-weight: 600; color: var(--dd-acc); }
.dd .dd-path-go .dd-i { width: 13px; height: 13px; stroke-width: 2.1; transition: transform .2s var(--dd-ease); }
.dd .dd-path:hover .dd-path-go .dd-i { transform: translateX(2px); }

/* Setup script: choose → download → run */
.dd .dd-script { counter-reset: dd-sc; display: grid; background: var(--dd-panel); border: 1px solid var(--dd-line); border-top: 2px solid var(--dd-acc);
  border-radius: var(--dd-r); box-shadow: var(--dd-shadow); }
.dd .dd-script-s { counter-increment: dd-sc; display: grid; gap: 10px; padding: 18px clamp(16px, 2.4vw, 22px); border-top: 1px solid var(--dd-line); }
.dd .dd-script-s:first-child { border-top: 0; }
.dd:not(.dd-js) .dd-script-s:first-child { display: none; }   /* without the script, the download sets up every tool */
.dd:not(.dd-js) .dd-script-s:nth-child(2) { border-top: 0; }
.dd .dd-script-k { display: flex; align-items: center; gap: 10px; font-family: var(--dd-display); font-size: 1.02rem; font-weight: 600; color: var(--dd-ink); }
.dd .dd-script-n { display: grid; place-items: center; width: 26px; height: 26px; flex: none; border-radius: 50%; border: 1px solid rgb(var(--dd-acc-rgb) / .5);
  background: rgb(var(--dd-acc-rgb) / .1); }
.dd .dd-script-n::before { content: counter(dd-sc); font-family: var(--dd-mono); font-size: 12px; font-weight: 700; color: var(--dd-acc); }
.dd .dd-script-hint { max-width: 76ch; font-size: 14px; line-height: 1.55; color: var(--dd-muted); }
.dd .dd-select { position: relative; max-width: 440px; }
.dd .dd-select select { width: 100%; min-height: 44px; padding: 0 40px 0 14px; border: 1px solid var(--dd-line3); border-radius: var(--dd-r-sm);
  background: var(--dd-well); color: var(--dd-ink); font: 600 14.5px/1.2 var(--dd-sans); cursor: pointer; -webkit-appearance: none; appearance: none;
  color-scheme: dark; transition: border-color .15s, box-shadow .15s; }
html[data-theme="studio"]:not([data-final="telemetry"]):not([data-cloud="dark"]) .dd .dd-select select { color-scheme: light; }
.dd .dd-select select:hover { border-color: rgb(var(--dd-acc-rgb) / .6); }
.dd .dd-select select:focus-visible { outline: none; border-color: var(--dd-acc); box-shadow: 0 0 0 3px rgb(var(--dd-acc-rgb) / .18); }
.dd .dd-select .dd-i { position: absolute; right: 13px; top: 50%; width: 16px; height: 16px; transform: translateY(-50%); color: var(--dd-muted); pointer-events: none; }
.dd .dd-dl-btns { display: grid; gap: 8px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .dd .dd-dl-btns { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.dd .dd-dl { display: flex; align-items: center; gap: 12px; min-height: 58px; padding: 10px 14px; background: var(--dd-panel2); border: 1px solid var(--dd-line3);
  border-radius: var(--dd-r-sm); transition: border-color .15s, background-color .15s; }
.dd .dd-dl > .dd-i { width: 18px; height: 18px; color: var(--dd-acc); stroke-width: 2; }
.dd .dd-dl-t { display: grid; min-width: 0; }
.dd .dd-dl-t b { font-size: 14.5px; font-weight: 650; color: var(--dd-ink); }
.dd .dd-dl-t small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: var(--dd-mono); font-size: 11.5px; color: var(--dd-muted); }
.dd .dd-dl:hover { border-color: var(--dd-acc); background: rgb(var(--dd-acc-rgb) / .06); }
.dd .dd-dl.is-mine { border-color: rgb(var(--dd-acc-rgb) / .7); box-shadow: inset 0 0 0 1px rgb(var(--dd-acc-rgb) / .35); }
.dd .dd-dl[aria-disabled="true"] { opacity: .45; cursor: not-allowed; }
.dd .dd-dl[aria-disabled="true"]:hover { border-color: var(--dd-line3); background: var(--dd-panel2); }
.dd .dd-run div { grid-template-columns: 124px minmax(0, 1fr); }
@media (max-width: 479px) { .dd .dd-run div { grid-template-columns: minmax(0, 1fr); gap: 4px; } }
.dd .dd-cols { display: grid; gap: 10px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) { .dd .dd-cols { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); } }
.dd .dd-col { padding: 14px 16px; background: var(--dd-panel); border: 1px solid var(--dd-line); border-radius: var(--dd-r-sm); box-shadow: var(--dd-card-shadow); }
.dd .dd-col-k { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; font-family: var(--dd-mono); font-size: 10.5px; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; color: var(--dd-muted); }
.dd .dd-col-k .dd-i { width: 15px; height: 15px; color: var(--dd-acc); stroke-width: 2.1; }
.dd .dd-files { display: grid; gap: 8px; }
.dd .dd-files li { display: grid; gap: 2px; min-width: 0; }
.dd .dd-files li > span { font-size: 12.5px; color: var(--dd-muted); }
.dd .dd-files a { width: fit-content; font-size: 14px; font-weight: 600; color: var(--dd-ink); text-decoration: underline; text-decoration-color: var(--dd-line3); text-underline-offset: 3px; }
.dd .dd-files a:hover { color: var(--dd-acc); text-decoration-color: currentColor; }
.dd .dd-files code { width: fit-content; max-width: 100%; font-size: 11.5px; color: var(--dd-muted); overflow-wrap: anywhere; }
.dd .dd-files li > span code { font-size: inherit; }
.dd .dd-col-d { margin-top: 10px; font-size: 13px; line-height: 1.5; color: var(--dd-muted); }

/* Connect your tool: pick a tool and a system, see only its steps */
.dd .dd-pick { background: var(--dd-band); border: 1px solid var(--dd-line); border-radius: var(--dd-r); box-shadow: var(--dd-card-shadow); overflow: clip; }
.dd .dd-pick-bar { display: none; }
.dd.dd-js .dd-pick-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 16px; padding: 12px 16px;
  border-bottom: 1px solid var(--dd-line); background: var(--dd-panel); }
.dd .dd-pick-k { font-family: var(--dd-mono); font-size: 10.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--dd-dim); }
.dd .dd-os-switch { display: inline-flex; padding: 3px; gap: 3px; border: 1px solid var(--dd-line2); border-radius: var(--dd-r-btn); background: var(--dd-well); }
.dd .dd-os-switch button { min-height: 36px; padding: 0 14px; border: 0; border-radius: var(--dd-r-btn); background: none; font-family: var(--dd-btn-font); font-size: 13px;
  font-weight: 600; color: var(--dd-muted); cursor: pointer; transition: color .15s, background-color .15s; }
.dd .dd-os-switch button:hover { color: var(--dd-ink); }
.dd .dd-os-switch button[aria-checked="true"] { background: var(--dd-acc); color: var(--dd-acc-ink); }
.dd .dd-pick-in { display: grid; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 1100px) { .dd .dd-pick-in { grid-template-columns: 224px minmax(0, 1fr); } }
.dd .dd-tools { display: grid; gap: 14px; align-content: start; padding: 16px; border-bottom: 1px solid var(--dd-line); }
@media (min-width: 1100px) { .dd .dd-tools { border-bottom: 0; border-right: 1px solid var(--dd-line); } }
.dd .dd-tools-k { margin-bottom: 6px; font-family: var(--dd-mono); font-size: 10.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--dd-dim); }
.dd .dd-tools ul { display: flex; flex-wrap: wrap; gap: 6px; }
@media (min-width: 1100px) { .dd .dd-tools ul { display: grid; gap: 2px; } }
.dd .dd-tool-chip { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 36px; padding: 0 12px; border: 1px solid var(--dd-line2);
  border-radius: var(--dd-r-btn); background: var(--dd-panel); font-size: 13.5px; font-weight: 600; color: var(--dd-mid); transition: color .15s, border-color .15s, background-color .15s; }
@media (min-width: 1100px) {
  .dd .dd-tool-chip { min-height: 38px; padding: 0 10px; border: 0; border-left: 2px solid transparent; border-radius: 0 var(--dd-r-sm) var(--dd-r-sm) 0; background: none; }
}
.dd .dd-tool-api { font-family: var(--dd-mono); font-size: 10.5px; font-weight: 600; letter-spacing: .04em; color: var(--dd-dim); }
.dd .dd-tool-chip:hover { color: var(--dd-ink); border-color: var(--dd-line3); }
.dd .dd-tool-chip[aria-current="true"] { color: var(--dd-ink); border-color: var(--dd-acc); background: rgb(var(--dd-acc-rgb) / .1); }
.dd .dd-tool-chip[aria-current="true"] .dd-tool-api { color: var(--dd-acc); }
.dd .dd-tool-panels { min-width: 0; background: var(--dd-panel); }
.dd .dd-tool { padding: clamp(18px, 2.4vw, 26px); }
.dd .dd-tool + .dd-tool { border-top: 1px solid var(--dd-line); }   /* without JS every tool shows, one after another */
.dd .dd-tool-h { display: grid; gap: 10px; margin-bottom: 18px; padding-bottom: 16px; border-bottom: 1px solid var(--dd-line); }
.dd .dd-tool-h h4 { font-size: clamp(1.2rem, 1.8vw, 1.42rem); letter-spacing: -.02em; }
.dd .dd-tool-h h4:focus { outline: none; }
.dd .dd-tool-script { display: flex; gap: 8px; align-items: flex-start; font-size: 14px; line-height: 1.55; color: var(--dd-mid); }
.dd .dd-tool-script .dd-i { width: 16px; height: 16px; margin-top: 2px; color: var(--dd-ok); stroke-width: 2.2; }
.dd .dd-tool-script.is-print .dd-i { color: var(--dd-acc); stroke-width: 1.8; }
.dd .dd-os + .dd-os { margin-top: 26px; }
.dd .dd-os-k { margin-bottom: 14px; font-family: var(--dd-mono); font-size: 11px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; color: var(--dd-acc); }
.dd.dd-js .dd-pick[data-os="mac"] .dd-os[data-os="win"], .dd.dd-js .dd-pick[data-os="win"] .dd-os[data-os="mac"] { display: none; }
.dd.dd-js .dd-os[data-os="mac"] > .dd-os-k, .dd.dd-js .dd-os[data-os="win"] > .dd-os-k { display: none; }
.dd.dd-js .dd-os + .dd-os { margin-top: 0; }
.dd .dd-os[data-os="any"] > .dd-os-k { color: var(--dd-muted); }
.dd .dd-tool-sub { margin: 26px 0 10px; font-family: var(--dd-mono); font-size: 11px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; color: var(--dd-muted); }
.dd .dd-tool .dd-step { padding-bottom: 20px; }
.dd .dd-tool .dd-step:last-child { padding-bottom: 0; }

/* Verify your setup */
.dd .dd-checks { display: grid; gap: 8px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .dd .dd-checks { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.dd .dd-checks label { display: flex; align-items: center; gap: 12px; min-height: 48px; height: 100%; padding: 10px 14px; background: var(--dd-panel); border: 1px solid var(--dd-line);
  border-radius: var(--dd-r-sm); box-shadow: var(--dd-card-shadow); font-size: 14.5px; color: var(--dd-mid); cursor: pointer; transition: border-color .15s, color .15s; }
.dd .dd-checks label:hover { border-color: var(--dd-line3); }
.dd .dd-checks input { width: 18px; height: 18px; flex: none; margin: 0; accent-color: var(--dd-acc); cursor: pointer; }
.dd .dd-checks label:has(input:checked) { color: var(--dd-ink); border-color: rgb(var(--dd-acc-rgb) / .45); }
.dd .dd-check-n { margin-top: 12px; font-family: var(--dd-mono); font-size: 12.5px; color: var(--dd-muted); }
.dd .dd-check-n.is-done { color: var(--dd-ok); }

/* ── Theme shapes ───────────────────────────────────────────────────────────────────────────── */
/* Telemetry's bracketed mono eyebrows become the site's LED pills in Night and Day, and Cloud's spaced grey caps;
   headline accents take each theme's treatment. Colours are all tokens above. */
html:not([data-final="telemetry"]) .dd .dd-eyebrow { align-items: center; padding: 5px 13px; border: 1px solid rgb(var(--dd-acc-rgb) / .3);
  border-radius: 999px; background: rgb(var(--dd-acc-rgb) / .07); font-family: var(--dd-sans); font-size: 12px; letter-spacing: .1em; }
html:not([data-final="telemetry"]) .dd .dd-eyebrow::before { content: ""; width: 6px; height: 6px; flex: none; border-radius: 50%; background: currentColor; }
html:not([data-final="telemetry"]) .dd .dd-eyebrow::after { content: none; }
html:not([data-final="telemetry"]) .dd .dd-headline .dd-acc { background: var(--dd-head-grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
html[data-final="cloud"] .dd .dd-eyebrow { padding: 0; border: 0; border-radius: 0; background: none; font-size: 12.5px; font-weight: 600;
  letter-spacing: .16em; color: var(--dd-muted); }
html[data-final="cloud"] .dd .dd-eyebrow::before { content: none; }
html[data-final="cloud"] .dd :is(.dd-headline, h2) { font-weight: 650; letter-spacing: -.04em; }
html[data-final="cloud"] .dd .dd-headline .dd-acc { background: none; -webkit-text-fill-color: currentColor; color: var(--dd-head-ink); }
html[data-final="cloud"] .dd :is(.dd-card, .dd-phead, .dd-feat, .dd-uses li, .dd-opt, .dd-table, .dd-api-c, .dd-faq, .dd-res a, .dd-path, .dd-col, .dd-pick, .dd-checks label) { border-color: rgb(24 27 38 / .045); }
html[data-final="cloud"][data-cloud="dark"] .dd :is(.dd-card, .dd-phead, .dd-feat, .dd-uses li, .dd-opt, .dd-table, .dd-api-c, .dd-faq, .dd-res a, .dd-path, .dd-col, .dd-pick, .dd-checks label) { border-color: rgb(255 255 255 / .06); }
html[data-final="cloud"] .dd .dd-phead { border-top: 3px solid var(--dd-acc); }
html[data-final="cloud"] .dd .dd-pico { border-color: transparent; }

@media (prefers-reduced-motion: reduce) {
  .dd *, .dd *::before, .dd *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .dd .dd-soon::before, .dd .dd-btn-soon::before { animation: none; }
}
@media print {
  .dd .dd-side, .dd .dd-mbar, .dd .dd-filter-box, .dd .dd-copy, .dd .dd-pick-bar, .dd .dd-tools { display: none !important; }
  .dd .dd-tool[hidden], .dd .dd-os { display: block !important; }
  .dd .dd-layout { grid-template-columns: minmax(0, 1fr); }
}

/* SEO (2026-10-20): the hero's eyebrow is the page's <h1>, carrying the search phrase; the big display headline under
   it is p.dd-headline (the rules above that styled "h1" now style it). The eyebrow keeps its own look: these undo what
   final-type.css gives every h1 (the display face) and keep a wrapped eyebrow readable. */
.dd h1.dd-eyebrow { font-family: var(--dd-mono); line-height: 1.5; text-wrap: balance; }
/* Telemetry brackets the eyebrow: as a block, a long one wraps with its brackets beside the words instead of at the edges. */
html[data-final="telemetry"] .dd h1.dd-eyebrow { display: block; }
html[data-final="telemetry"] .dd h1.dd-eyebrow::before { margin-right: 8px; }
html[data-final="telemetry"] .dd h1.dd-eyebrow::after { margin-left: 8px; }