/* ITS Roads CV2X portal — cv2x.itsroads.com
   Brand tokens match itsroads.com: navy ground, cyan links, yellow accent, concrete off-white paper. */
:root {
  --navy: #0b1b2b;
  --navy-2: #14283c;
  --cyan: #1b8fc7;
  --cyan-deep: #136d99;
  --yellow: #e9cb4e;
  --yellow-deep: #b8951a;
  --paper: #f7f6f1;
  --paper-2: #edece6;
  --card: #ffffff;
  --line: #d8d6cd;
  --line-2: #e6e4dc;
  --ink: #22231f;
  --ink-2: #5a5a55;
  --ink-3: #7b7b74;
  --ok: #2e7d32;
  --ok-bg: #e7f3e8;
  --warn: #9a6b00;
  --warn-bg: #fff6d6;
  --err: #b3261e;
  --err-bg: #fdecea;
  --info-bg: #e6f2f9;
  --code-bg: #f1f0ea;
  --shadow: 0 1px 2px rgba(11,27,43,.06), 0 6px 20px rgba(11,27,43,.06);
  --font-display: "Overpass", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Source Sans 3", "Source Sans Pro", "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  --max: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 8px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0e1821; --paper-2: #121f2b; --card: #162634; --line: #2a3b4c; --line-2: #22333f;
    --ink: #e8eaec; --ink-2: #b4bec8; --ink-3: #8d99a5; --cyan: #4fb3e4; --cyan-deep: #7cc9ee;
    --ok: #7fd48a; --ok-bg: #163322; --warn: #f0d070; --warn-bg: #3a2f10; --err: #ff8a80; --err-bg: #3b1d1b;
    --info-bg: #10283a; --code-bg: #0f1b26; --yellow-deep: #e9cb4e; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 20px rgba(0,0,0,.25);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0e1821; --paper-2: #121f2b; --card: #162634; --line: #2a3b4c; --line-2: #22333f;
  --ink: #e8eaec; --ink-2: #b4bec8; --ink-3: #8d99a5; --cyan: #4fb3e4; --cyan-deep: #7cc9ee;
  --ok: #7fd48a; --ok-bg: #163322; --warn: #f0d070; --warn-bg: #3a2f10; --err: #ff8a80; --err-bg: #3b1d1b;
  --info-bg: #10283a; --code-bg: #0f1b26; --yellow-deep: #e9cb4e; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 20px rgba(0,0,0,.25);
  color-scheme: dark;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font-body); font-size: 17px; line-height: 1.55; min-height: 100vh; display: flex; flex-direction: column; overflow-x: hidden; }
main { flex: 1; }
img, svg { max-width: 100%; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.12; margin: 0 0 .5em; letter-spacing: -.01em; text-wrap: balance; }
h1 { font-size: clamp(1.9rem, 4.2vw, 3rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 2.8vw, 2.1rem); font-weight: 800; }
h3 { font-size: clamp(1.15rem, 1.7vw, 1.35rem); font-weight: 700; }
h4 { font-size: 1rem; font-weight: 700; margin-bottom: .35em; }
p { margin: 0 0 1em; }
p.lede { font-size: clamp(1.05rem, 1.5vw, 1.25rem); color: var(--ink-2); max-width: 64ch; }
a { color: var(--cyan); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--cyan-deep); }
code, pre, kbd, .mono { font-family: var(--font-mono); font-size: .88em; }
code { background: var(--code-bg); padding: .1em .35em; border-radius: 4px; overflow-wrap: anywhere; }
pre { background: var(--code-bg); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 12px 14px; overflow: auto; margin: 0 0 1em; line-height: 1.45; max-width: 100%; }
pre code { background: none; padding: 0; }
kbd { background: var(--paper-2); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 4px; padding: 0 .4em; font-size: .8em; }
ul, ol { padding-left: 1.25em; }
li { margin-bottom: .3em; }
hr { border: 0; border-top: 1px solid var(--line); margin: 1.5em 0; }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 2px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--yellow); color: #22231f; padding: 8px 12px; z-index: 1000; border-radius: 4px; }
.skip:focus { left: 8px; }
.wrap { max-width: var(--max); margin: 0 auto; padding-inline: var(--gutter); width: 100%; }
.narrow { max-width: 860px; }
.muted { color: var(--ink-2); }
.small { font-size: .9rem; }
.tiny { font-size: .8rem; }
.eyebrow { font-family: var(--font-display); font-weight: 700; text-transform: uppercase; letter-spacing: .12em; font-size: .76rem; color: var(--yellow-deep); display: inline-flex; align-items: center; gap: .6em; margin-bottom: .8em; }
.eyebrow::before { content: ""; width: 26px; height: 4px; background: var(--yellow); border-radius: 2px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
section { padding-block: clamp(36px, 6vw, 72px); }
section.tight { padding-block: clamp(22px, 4vw, 40px); }
.dark { background: var(--navy); color: #e9e8e2; }
.dark h1, .dark h2, .dark h3 { color: #fff; }
.dark a { color: #8fd0f2; }
.dark .eyebrow { color: var(--yellow); }
.alt { background: var(--paper-2); }

/* ---------- header ---------- */
.site-header { background: #0b1b2b; color: #fff; border-bottom: 3px solid var(--yellow); position: sticky; top: 0; z-index: 50; }
.site-header .bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.wordmark { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-family: var(--font-display); font-weight: 800; font-size: 1.25rem; letter-spacing: -.01em; }
.wordmark .badge { background: var(--yellow); color: #0b1b2b; font-size: .72rem; font-weight: 800; letter-spacing: .1em; padding: 3px 7px 2px; border-radius: 4px; line-height: 1; }
.nav-toggle { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; background: transparent; border: 1px solid rgba(255,255,255,.25); border-radius: 6px; color: #fff; cursor: pointer; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { display: block; width: 20px; height: 2px; background: #fff; position: relative; transition: transform .2s; content: ""; }
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-6px) rotate(-45deg); }
.nav { display: none; width: 100%; flex-direction: column; gap: 2px; padding-bottom: 12px; }
.nav.open { display: flex; }
.nav a { color: #e9e8e2; text-decoration: none; padding: 10px 10px; border-radius: 6px; font-weight: 600; font-family: var(--font-display); font-size: .98rem; }
.nav a:hover { background: rgba(255,255,255,.08); color: #fff; }
.nav a[aria-current="page"] { color: var(--yellow); }
.nav .signin { background: var(--yellow); color: #0b1b2b; }
.nav .signin:hover { background: #f3d86a; color: #0b1b2b; }
.nav .account { color: #8fd0f2; max-width: 240px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .nav { display: flex; width: auto; flex-direction: row; align-items: center; gap: 4px; padding: 0; }
  .nav .signin { margin-left: 8px; padding: 8px 14px; }
}

/* ---------- footer ---------- */
.site-footer { background: var(--navy); color: #cfcec6; padding: 36px 0 28px; margin-top: 48px; font-size: .95rem; }
.site-footer a { color: #8fd0f2; }
.site-footer .cols { display: grid; gap: 18px; }
.site-footer .std { color: #9aa6b0; font-size: .85rem; margin-top: 14px; border-top: 1px solid rgba(255,255,255,.12); padding-top: 14px; display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; justify-content: space-between; }
.site-footer .links { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.theme-btn { background: transparent; border: 1px solid rgba(255,255,255,.25); color: #cfcec6; border-radius: 6px; padding: 4px 10px; font: inherit; font-size: .8rem; cursor: pointer; }
.theme-btn:hover { color: #fff; border-color: #fff; }
@media (min-width: 720px) { .site-footer .cols { grid-template-columns: 1.4fr 1fr; } }

/* ---------- buttons, pills, callouts ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 16px; border-radius: 6px; border: 1px solid var(--line); background: var(--card); color: var(--ink); font: inherit; font-weight: 600; font-family: var(--font-display); font-size: .95rem; line-height: 1.2; cursor: pointer; text-decoration: none; transition: background .15s, border-color .15s, transform .05s; min-height: 42px; }
.btn:hover { border-color: var(--ink-3); background: var(--paper-2); color: var(--ink); }
.btn:active { transform: translateY(1px); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; }
.btn.primary { background: var(--cyan); border-color: var(--cyan); color: #fff; }
.btn.primary:hover { background: #167cae; border-color: #167cae; color: #fff; }
.btn.accent { background: var(--yellow); border-color: var(--yellow); color: #0b1b2b; }
.btn.accent:hover { background: #f3d86a; border-color: #f3d86a; color: #0b1b2b; }
.btn.danger { color: var(--err); border-color: var(--err); background: transparent; }
.btn.danger:hover { background: var(--err-bg); }
.btn.ghost { background: transparent; }
.btn.sm { padding: 6px 10px; min-height: 32px; font-size: .85rem; }
.btn.block { width: 100%; }
.btn .spin { width: 14px; height: 14px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; display: none; }
.btn.busy .spin { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }
.btn-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; background: var(--paper-2); border: 1px solid var(--line); font-size: .85rem; color: var(--ink-2); line-height: 1.3; }
.pill.ok { background: var(--ok-bg); color: var(--ok); border-color: transparent; }
.pill.warn { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.pill.err { background: var(--err-bg); color: var(--err); border-color: transparent; }
.pill.cyan { background: var(--info-bg); color: var(--cyan-deep); border-color: transparent; }
.pill.navy { background: var(--navy); color: #fff; border-color: transparent; }
.callout { border-radius: var(--radius); padding: 12px 14px; margin: 0 0 14px; border: 1px solid transparent; font-size: .95rem; }
.callout.error { background: var(--err-bg); color: var(--err); border-color: color-mix(in srgb, var(--err) 30%, transparent); }
.callout.warn { background: var(--warn-bg); color: var(--warn); border-color: color-mix(in srgb, var(--warn) 30%, transparent); }
.callout.info { background: var(--info-bg); color: var(--ink); border-color: color-mix(in srgb, var(--cyan) 30%, transparent); }
.callout.ok { background: var(--ok-bg); color: var(--ok); border-color: color-mix(in srgb, var(--ok) 30%, transparent); }
.callout p:last-child { margin-bottom: 0; }
.callout a { color: inherit; font-weight: 600; }
.callout.error .btn-row { margin-top: 8px; }
.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%) translateY(20px); background: var(--navy); color: #fff; padding: 10px 16px; border-radius: 8px; box-shadow: var(--shadow); opacity: 0; transition: opacity .2s, transform .2s; z-index: 200; pointer-events: none; font-size: .95rem; max-width: calc(100vw - 32px); }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- cards & grids ---------- */
.card { background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); min-width: 0; }
.card.flat { box-shadow: none; }
.card h3 { margin-top: 0; }
.card > :last-child { margin-bottom: 0; }
.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: 1fr; }
.grid.cols-3 { grid-template-columns: 1fr; }
.grid.cols-4 { grid-template-columns: 1fr 1fr; }
@media (min-width: 680px) { .grid.cols-2 { grid-template-columns: 1fr 1fr; } .grid.cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .grid.cols-3 { grid-template-columns: repeat(3, 1fr); } .grid.cols-4 { grid-template-columns: repeat(4, 1fr); } }
.cta-card { display: flex; flex-direction: column; gap: 8px; text-decoration: none; color: var(--ink); border-top: 4px solid var(--cyan); transition: transform .15s, box-shadow .15s; }
.cta-card:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(11,27,43,.12); color: var(--ink); }
.cta-card.yellow { border-top-color: var(--yellow); }
.cta-card.navy { border-top-color: var(--navy); }
.cta-card .go { color: var(--cyan); font-weight: 700; font-family: var(--font-display); margin-top: auto; }
.feature { display: flex; gap: 12px; align-items: flex-start; }
.feature .ico { flex: 0 0 40px; width: 40px; height: 40px; border-radius: 8px; background: var(--info-bg); color: var(--cyan-deep); display: grid; place-items: center; font-family: var(--font-display); font-weight: 800; }
.feature h4 { margin: 0 0 .25em; }
.feature p { margin: 0; color: var(--ink-2); font-size: .95rem; }
.stat { font-family: var(--font-display); font-weight: 800; font-size: 1.8rem; color: var(--cyan); line-height: 1; }

/* ---------- forms ---------- */
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; min-width: 0; }
.field label, .field > .lbl { font-weight: 600; font-size: .92rem; font-family: var(--font-display); }
.field .hint { font-size: .82rem; color: var(--ink-3); }
.field.inline { flex-direction: row; align-items: center; gap: 8px; }
.field.inline label { font-weight: 500; font-family: var(--font-body); }
input[type="text"], input[type="email"], input[type="password"], input[type="number"], input[type="search"], input[type="url"], input[type="datetime-local"], select, textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 9px 11px; min-height: 42px; max-width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 3px solid color-mix(in srgb, var(--cyan) 35%, transparent); border-color: var(--cyan); }
textarea { resize: vertical; line-height: 1.45; }
textarea.mono, input.mono { font-family: var(--font-mono); font-size: .9rem; }
input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--cyan); }
.form-grid { display: grid; gap: 0 14px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .form-grid { grid-template-columns: 1fr 1fr; } .form-grid .span2 { grid-column: 1 / -1; } }
fieldset { border: 1px solid var(--line-2); border-radius: var(--radius); padding: 10px 14px 4px; margin: 0 0 14px; min-width: 0; }
legend { font-family: var(--font-display); font-weight: 700; font-size: .9rem; padding: 0 6px; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; max-width: 100%; -webkit-overflow-scrolling: touch; }
table.tbl { width: 100%; border-collapse: collapse; font-size: .93rem; }
table.tbl th, table.tbl td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line-2); vertical-align: top; }
table.tbl th { font-family: var(--font-display); font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-2); background: var(--paper-2); }
table.tbl tr:last-child td { border-bottom: 0; }
table.tbl td.k { color: var(--ink-2); white-space: nowrap; font-weight: 600; width: 32%; }
table.tbl td.k.sub { padding-left: 22px; font-weight: 500; }
table.tbl td .mono { word-break: break-all; }

/* ---------- tabs ---------- */
.tabs { display: flex; gap: 2px; border-bottom: 2px solid var(--line); margin-bottom: 14px; overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tab { background: none; border: 0; border-bottom: 3px solid transparent; margin-bottom: -2px; padding: 10px 14px; font: inherit; font-family: var(--font-display); font-weight: 700; color: var(--ink-2); cursor: pointer; text-decoration: none; white-space: nowrap; }
.tab:hover { color: var(--ink); }
.tab[aria-selected="true"], .tab.active { color: var(--cyan-deep); border-bottom-color: var(--cyan); }
.tabs.big .tab { font-size: 1.1rem; padding: 12px 18px; }
.tabpanel[hidden] { display: none; }

/* ---------- tool page ---------- */
.tool-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; margin: 18px 0 6px; }
.tool-head h1 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin: 0; }
.tool-grid { display: grid; gap: 16px; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 1000px) { .tool-grid.create { grid-template-columns: 280px minmax(0, 1fr); } }
.dropzone { position: relative; border: 2px dashed var(--line); border-radius: var(--radius); transition: border-color .15s, background .15s; }
.dropzone.over { border-color: var(--cyan); background: var(--info-bg); }
.dropzone textarea { border: 0; background: transparent; min-height: 150px; font-family: var(--font-mono); font-size: .9rem; }
.dropzone textarea:focus { outline: none; }
.dropzone .dz-foot { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: space-between; padding: 6px 10px 8px; border-top: 1px dashed var(--line-2); font-size: .85rem; color: var(--ink-3); }
.dropzone .dz-foot label { color: var(--cyan); cursor: pointer; font-weight: 600; }
.samples { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 14px; }
.samples .btn { padding: 5px 10px; min-height: 30px; font-size: .83rem; font-weight: 600; }
.opts { display: grid; gap: 10px 14px; grid-template-columns: 1fr; align-items: end; margin: 10px 0; }
@media (min-width: 640px) { .opts { grid-template-columns: 1.4fr 1fr auto; } .opts.three { grid-template-columns: 1fr 1fr auto; } .opts.four { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .opts.four { grid-template-columns: 1.3fr .8fr 1.2fr auto; } }
.opts .field { margin: 0; }
.run-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 14px 0; }
.run-row .right { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }
.quota { font-size: .88rem; }
.quota.low { color: var(--warn); }
.quota.none { color: var(--err); }

/* results */
.result-head { display: grid; gap: 12px; }
#results, #error, .doc h2, .doc h3, .doc h4 { scroll-margin-top: 76px; }
.result-head .title { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px; }
.result-head h2 { margin: 0; font-size: clamp(1.25rem, 2.4vw, 1.6rem); }
.result-head .meta { display: flex; flex-wrap: wrap; gap: 6px; }
.result-head .headline { font-size: 1.05rem; color: var(--ink-2); margin: 0; }
.layers { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: .9rem; }
.layers .layer { background: var(--paper-2); border: 1px solid var(--line); border-radius: 6px; padding: 4px 9px; font-family: var(--font-display); font-weight: 700; font-size: .83rem; cursor: help; }
.layers .layer.inner { background: var(--navy); color: #fff; border-color: var(--navy); }
.layers .arrow { color: var(--ink-3); }
.layer-details { font-size: .85rem; color: var(--ink-2); margin: 4px 0 0; padding-left: 1.1em; }
.result-map { height: 320px; border-radius: var(--radius); border: 1px solid var(--line); margin: 14px 0; background: var(--paper-2); z-index: 0; }
@media (min-width: 900px) { .result-map { height: 380px; } }
.hexblock { position: relative; }
.hexblock pre { font-size: .85rem; word-break: break-all; white-space: pre-wrap; margin: 0; padding-right: 14px; }
.hexdump { font-size: .8rem; line-height: 1.5; white-space: pre; overflow: auto; }
.hexdump .off { color: var(--ink-3); }
.hexdump .asc { color: var(--cyan-deep); }
.code-tools { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; align-items: center; }
.code-tools .spacer { flex: 1; }

/* JSON tree */
.jtree { font-family: var(--font-mono); font-size: .85rem; line-height: 1.5; overflow: auto; background: var(--code-bg); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 10px 12px; max-height: 70vh; }
.jtree ul { list-style: none; margin: 0; padding-left: 18px; }
.jtree li { margin: 0; }
.jtree .k { color: var(--navy); font-weight: 600; }
:root[data-theme="dark"] .jtree .k { color: #9ec9e6; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .jtree .k { color: #9ec9e6; } }
.jtree .s { color: #0b6b2f; } .jtree .n { color: #8a3b00; } .jtree .b { color: #7a1fa2; } .jtree .z { color: var(--ink-3); }
:root[data-theme="dark"] .jtree .s { color: #9ad8a8; } :root[data-theme="dark"] .jtree .n { color: #f5b97c; } :root[data-theme="dark"] .jtree .b { color: #d9a7f0; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .jtree .s { color: #9ad8a8; } :root:not([data-theme="light"]) .jtree .n { color: #f5b97c; } :root:not([data-theme="light"]) .jtree .b { color: #d9a7f0; } }
.jtree .tg { display: inline-block; width: 1.1em; color: var(--ink-3); cursor: pointer; user-select: none; border: 0; background: none; font: inherit; padding: 0; }
.jtree .tg::before { content: "▾"; }
.jtree li.closed > .tg::before { content: "▸"; }
.jtree li.closed > ul { display: none; }
.jtree li.closed > .sum { display: inline; }
.jtree .sum { display: none; color: var(--ink-3); cursor: pointer; }
.jtree .cnt { color: var(--ink-3); font-weight: 400; }

/* creator */
.tpl-list { display: grid; gap: 8px; grid-template-columns: 1fr; }
@media (min-width: 560px) and (max-width: 999px) { .tpl-list { grid-template-columns: 1fr 1fr; } }
.tpl-card { text-align: left; background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 10px 12px; cursor: pointer; font: inherit; color: var(--ink); display: grid; gap: 2px; transition: border-color .15s, background .15s; }
.tpl-card:hover { border-color: var(--cyan); }
.tpl-card[aria-pressed="true"] { border-color: var(--cyan); background: var(--info-bg); box-shadow: inset 3px 0 0 var(--cyan); }
.tpl-card .nm { font-family: var(--font-display); font-weight: 700; font-size: .95rem; }
.tpl-card .mt { font-size: .78rem; color: var(--ink-3); display: flex; gap: 8px; flex-wrap: wrap; }
.tpl-card .ds { font-size: .82rem; color: var(--ink-2); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.editor-wrap { position: relative; }
.editor-wrap textarea { min-height: 360px; font-family: var(--font-mono); font-size: .86rem; line-height: 1.45; tab-size: 2; white-space: pre; overflow: auto; }
.editor-status { font-size: .83rem; margin-top: 6px; min-height: 1.2em; }
.editor-status.ok { color: var(--ok); } .editor-status.bad { color: var(--err); }
.qf-group { margin-bottom: 10px; }
.qf-group summary { cursor: pointer; font-family: var(--font-display); font-weight: 700; font-size: .92rem; padding: 6px 0; }
.qf-grid { display: grid; gap: 8px 12px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .qf-grid { grid-template-columns: 1fr 1fr; } }
.qf { display: grid; gap: 2px; min-width: 0; }
.qf label { font-family: var(--font-mono); font-size: .75rem; color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qf input, .qf select { min-height: 36px; padding: 6px 9px; font-size: .9rem; }
.qf.bool { grid-template-columns: auto 1fr; align-items: center; gap: 8px; }
.notes { font-size: .88rem; color: var(--ink-2); }
.notes li { margin-bottom: .4em; }
.enc-out { display: grid; gap: 10px; }
.enc-out .sizes { display: flex; flex-wrap: wrap; gap: 6px; }

/* message reference */
.ref summary { cursor: pointer; font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; padding: 10px 0; list-style: none; display: flex; align-items: center; gap: 8px; }
.ref summary::-webkit-details-marker { display: none; }
.ref summary::before { content: "▸"; color: var(--cyan); }
.ref[open] summary::before { content: "▾"; }
.ref .ref-grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 900px) { .ref .ref-grid { grid-template-columns: 1.3fr 1fr; } }

/* dialogs */
dialog { border: 0; border-radius: 10px; padding: 0; background: var(--card); color: var(--ink); box-shadow: 0 20px 60px rgba(0,0,0,.35); width: min(680px, calc(100vw - 32px)); max-height: calc(100vh - 32px); }
dialog::backdrop { background: rgba(11,27,43,.55); }
dialog .dlg-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 18px; border-bottom: 1px solid var(--line-2); }
dialog .dlg-head h2 { margin: 0; font-size: 1.2rem; }
dialog .dlg-body { padding: 16px 18px; overflow: auto; max-height: calc(100vh - 170px); }
dialog .dlg-foot { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; padding: 12px 18px; border-top: 1px solid var(--line-2); }
dialog.wide { width: min(900px, calc(100vw - 32px)); }
.x-btn { background: none; border: 0; font-size: 1.4rem; line-height: 1; cursor: pointer; color: var(--ink-2); width: 36px; height: 36px; border-radius: 6px; }
.x-btn:hover { background: var(--paper-2); color: var(--ink); }

/* map page */
.map-full { height: calc(100vh - 220px); min-height: 380px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); z-index: 0; }
.map-note { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; justify-content: space-between; padding: 12px 0; }
.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: .9rem; align-items: center; }
.legend .dot { display: inline-block; width: 12px; height: 12px; border-radius: 50%; margin-right: 6px; vertical-align: -1px; border: 2px solid #fff; box-shadow: 0 0 0 1px rgba(0,0,0,.3); }
.leaflet-container { font-family: var(--font-body); }
.leaflet-popup-content { font-size: .9rem; line-height: 1.4; }
.leaflet-popup-content b { font-family: var(--font-display); }
.pick-map { height: 220px; border-radius: 6px; border: 1px solid var(--line); margin-bottom: 10px; z-index: 0; }

/* rsu page */
.rsu-list { display: grid; gap: 12px; }
.rsu-card { display: grid; gap: 10px; }
.rsu-card .top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; align-items: flex-start; }
.rsu-card h3 { margin: 0; font-size: 1.1rem; }
.rsu-card .props { display: grid; gap: 4px 14px; grid-template-columns: 1fr; font-size: .92rem; }
@media (min-width: 640px) { .rsu-card .props { grid-template-columns: 1fr 1fr; } }
.rsu-card .props span.k { color: var(--ink-3); }
.rsu-card .actions { display: flex; flex-wrap: wrap; gap: 6px; }
.rsu-card .out { font-family: var(--font-mono); font-size: .82rem; white-space: pre-wrap; word-break: break-word; }
.empty { text-align: center; padding: 40px 16px; color: var(--ink-2); border: 2px dashed var(--line); border-radius: var(--radius); }

/* guides, api, docs */
.doc { max-width: 820px; }
.doc h2 { margin-top: 1.6em; padding-top: .6em; border-top: 1px solid var(--line-2); font-size: 1.45rem; }
.doc h3 { margin-top: 1.3em; font-size: 1.15rem; }
.doc table { width: 100%; border-collapse: collapse; font-size: .92rem; margin: 0 0 1em; display: block; overflow-x: auto; }
.doc th, .doc td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--line-2); vertical-align: top; }
.doc th { background: var(--paper-2); font-family: var(--font-display); font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; }
.doc blockquote { margin: 0 0 1em; padding: 8px 14px; border-left: 4px solid var(--yellow); background: var(--paper-2); border-radius: 0 6px 6px 0; }
.doc pre { font-size: .84rem; }
.doc-layout { display: grid; gap: 24px; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 960px) { .doc-layout { grid-template-columns: 240px minmax(0, 1fr); } .doc-layout .toc { position: sticky; top: 76px; } }
.toc { font-size: .9rem; }
.toc ul { list-style: none; padding: 0; margin: 0; }
.toc li { margin: 0; }
.toc a { display: block; padding: 4px 0; color: var(--ink-2); text-decoration: none; border-left: 2px solid var(--line); padding-left: 10px; }
.toc a:hover { color: var(--cyan); border-left-color: var(--cyan); }
.toc li.l2 a { padding-left: 22px; font-size: .86rem; }
.endpoint { margin: 0 0 1.4em; }
.endpoint .sig { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-family: var(--font-mono); font-size: .95rem; margin-bottom: 6px; }
.endpoint .m { font-weight: 700; font-size: .75rem; padding: 2px 7px; border-radius: 4px; background: var(--navy); color: #fff; font-family: var(--font-display); }
.endpoint .m.get { background: var(--cyan); } .endpoint .m.del { background: var(--err); } .endpoint .m.put { background: var(--yellow-deep); }
.auth-box { max-width: 460px; margin: 40px auto; }
.auth-box h1 { font-size: 1.7rem; }
.hero { padding-block: clamp(44px, 8vw, 90px); background: linear-gradient(135deg, #0b1b2b 0%, #14283c 70%, #1a3550 100%); position: relative; overflow: hidden; }
.hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 6px; background: repeating-linear-gradient(90deg, var(--yellow) 0 40px, transparent 40px 70px); opacity: .9; }
.hero h1 { max-width: 22ch; }
.hero .lede { color: #cfcec6; }
.demo-box { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius); padding: 14px 16px; color: #e9e8e2; }
.demo-box .hd { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; color: #fff; }
.demo-box .hex { font-family: var(--font-mono); font-size: .78rem; color: #9fb3c4; word-break: break-all; max-height: 3.2em; overflow: hidden; }
.std-line { font-size: .9rem; color: var(--ink-2); }
.hero-grid { display: grid; gap: 28px; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 900px) { .hero-grid { grid-template-columns: 1.2fr 1fr; } }
.upsell { border-left: 6px solid var(--yellow); }
details.spoiler summary { cursor: pointer; color: var(--cyan); font-weight: 600; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; } html { scroll-behavior: auto; } }