/* MailDingo: warm cream + ginger + ink navy. System fonts only. */
:root {
  --bg: #fbf6ee; --surface: #ffffff; --surface2: #f6efe3; --ink: #1d2433; --muted: #5b6474; --line: #e7dccb;
  --brand: #d9822b; --brand-d: #a95a14; --brand-t: #fbe9d5; --navy: #1f2a44; --navy2: #2b3a5c;
  --good: #1d7a50; --good-t: #dff3e8; --warn: #9a6400; --warn-t: #fbefd2; --bad: #b8322a; --bad-t: #fbe1de;
  --neutral: #5d6675; --neutral-t: #eceef2; --unknown: #6a5d8f; --unknown-t: #ece8f6;
  --hl-sender: #fbe3c8; --hl-route: #dbe8fb; --hl-auth: #d8f0e2; --hl-arc: #ebe0f7;
  --code-bg: #1f2a44; --code-ink: #e9edf5; --code-name: #ffb871;
  --shadow: 0 1px 2px rgba(29, 36, 51, .06), 0 4px 16px rgba(29, 36, 51, .06);
  --r: 14px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  /* dingo */
  --dg-fur: #d9822b; --dg-fur-d: #b8661c; --dg-cream: #f6e3c4; --dg-ear: #f2c79a; --dg-ink: #1d2433; --dg-env: #ffffff; --dg-seal: #c4372f;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161f; --surface: #1a2030; --surface2: #202739; --ink: #ebe6dd; --muted: #a5adbb; --line: #2e3648;
    --brand: #ec9a52; --brand-d: #f2b27a; --brand-t: #3a2a1a; --navy: #0d1220; --navy2: #1d2740;
    --good: #5fd39b; --good-t: #16342a; --warn: #f0c060; --warn-t: #3a2f14; --bad: #ff8a80; --bad-t: #3d1d1d;
    --neutral: #b4bccb; --neutral-t: #283043; --unknown: #c3b5f0; --unknown-t: #2c2747;
    --hl-sender: #3b2b1a; --hl-route: #1b2b45; --hl-auth: #173527; --hl-arc: #2c2142;
    --code-bg: #0c111c; --code-ink: #dfe5ef; --code-name: #ffb871;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .25);
    --dg-cream: #f3dcb6; --dg-env: #fbf6ee;
    color-scheme: dark;
  }
}
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 var(--sans); }
a { color: var(--brand-d); text-underline-offset: 2px; }
a:hover { color: var(--brand); }
code, kbd, pre { font-family: var(--mono); font-size: .88em; }
code { background: var(--surface2); border: 1px solid var(--line); border-radius: 5px; padding: .05em .35em; overflow-wrap: anywhere; }
h1, h2, h3, h4 { line-height: 1.2; letter-spacing: -.01em; }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.7rem); margin: .3em 0 .3em; }
h2 { font-size: 1.5rem; margin: 1.6em 0 .5em; }
h3 { font-size: 1.15rem; }
img, svg { max-width: 100%; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 16px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 0; background: var(--brand); color: #fff; padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; border-radius: 4px; }
html.no-js .js-only, html:not(.js) .js-only { display: none !important; }

/* header */
.top { background: var(--navy); color: #fff; position: sticky; top: 0; z-index: 5; }
.bar { display: flex; align-items: center; gap: 18px; min-height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 700; font-size: 1.25rem; letter-spacing: -.01em; }
.brand b { color: #ffb36b; font-weight: 800; }
.brand:hover { color: #fff; }
.top nav { display: flex; gap: 2px; margin-left: auto; overflow-x: auto; scrollbar-width: none; }
.top nav a { color: #d8deeb; text-decoration: none; padding: 8px 12px; border-radius: 9px; white-space: nowrap; font-size: .97rem; }
.top nav a:hover { background: var(--navy2); color: #fff; }
.top nav a[aria-current] { background: var(--navy2); color: #fff; box-shadow: inset 0 -2px 0 #ffb36b; }

/* hero */
.hero { background: radial-gradient(1200px 400px at 85% 30%, var(--brand-t), transparent 70%), var(--bg); border-bottom: 1px solid var(--line); }
.hero-in { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; align-items: center; padding-top: 28px; padding-bottom: 12px; }
.kicker { text-transform: uppercase; letter-spacing: .09em; font-size: .78rem; font-weight: 700; color: var(--brand-d); margin: 0; }
.lede { font-size: 1.15rem; color: var(--muted); margin: .3em 0 1em; max-width: 46em; }
.trust { display: flex; gap: 12px; align-items: flex-start; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; max-width: 40em; box-shadow: var(--shadow); font-size: .95rem; }
.lock { flex: none; width: 26px; height: 26px; border-radius: 50%; background: var(--good-t); position: relative; }
.lock::before { content: ""; position: absolute; left: 8px; top: 11px; width: 10px; height: 8px; background: var(--good); border-radius: 2px; }
.lock::after { content: ""; position: absolute; left: 9.5px; top: 5px; width: 7px; height: 8px; border: 2px solid var(--good); border-bottom: 0; border-radius: 5px 5px 0 0; }
.hero-art .dingo { width: 100%; max-width: 460px; display: block; margin: 0 auto; }

/* dingo */
.dg-fur { fill: var(--dg-fur); } .dg-fur-d { fill: var(--dg-fur-d); } .dg-cream { fill: var(--dg-cream); } .dg-ear { fill: var(--dg-ear); }
.dg-ink { fill: var(--dg-ink); } .dg-ink-l { stroke: var(--dg-ink); stroke-width: 2; } .dg-glint { fill: #fff; }
.dg-env { fill: var(--dg-env); stroke: var(--dg-ink); stroke-width: 2.2; } .dg-env-line { stroke: var(--dg-ink); stroke-width: 2.2; }
.dg-seal { fill: var(--dg-seal); } .dg-shadow { fill: var(--ink); opacity: .1; } .dg-line { stroke: var(--brand); stroke-width: 4; opacity: .45; }
@media (prefers-reduced-motion: no-preference) {
  .hero-art .dg-run { animation: trot 1.1s ease-in-out infinite alternate; transform-origin: 150px 170px; }
  .hero-art .dg-line { animation: whoosh 1.1s ease-in-out infinite alternate; }
  .busy .hero-art .dg-run { animation-duration: .35s; }
}
@keyframes trot { from { transform: translateY(0) rotate(0); } to { transform: translateY(-4px) rotate(-1deg); } }
@keyframes whoosh { from { opacity: .25; transform: translateX(4px); } to { opacity: .6; transform: translateX(-4px); } }

/* analyser */
.tool { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 18px; margin: 22px 0 18px; box-shadow: var(--shadow); }
.tool-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.tool-head h2 { margin: 0 0 10px; font-size: 1.3rem; }
.howto { font-size: .95rem; }
textarea#hdrs { width: 100%; min-height: 220px; resize: vertical; font: 13.5px/1.5 var(--mono); color: var(--code-ink); background: var(--code-bg); border: 2px solid transparent; border-radius: 12px; padding: 14px; white-space: pre; overflow-wrap: normal; overflow-x: auto; }
textarea#hdrs::placeholder { color: #8d97ab; }
textarea#hdrs:focus { outline: none; border-color: var(--brand); }
.tool-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: 600 1rem/1 var(--sans); padding: 13px 20px; border-radius: 11px; border: 1px solid transparent; cursor: pointer; text-decoration: none; min-height: 46px; }
.btn-go { background: var(--brand); color: #1d1206; }
.btn-go:hover { background: var(--brand-d); color: #fff; }
.btn-go:disabled { opacity: .5; cursor: not-allowed; }
@media (prefers-color-scheme: dark) { .btn-go:hover { color: #1d1206; } }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--surface2); }
.tool-status { color: var(--muted); font-size: .92rem; }
.try { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line); }
.try-l { font-weight: 600; font-size: .92rem; margin-right: 4px; }
.try-b { font-size: .88rem; padding: 6px 11px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface2); color: var(--ink); text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.try-b::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--neutral); }
.try-b.t-good::before { background: var(--good); } .try-b.t-bad::before { background: var(--bad); } .try-b.t-warn::before { background: var(--warn); }
.try-b:hover { border-color: var(--brand); color: var(--ink); }
.nojs { background: var(--warn-t); border-radius: 10px; padding: 10px 14px; }

/* report */
.report { margin: 8px 0 30px; scroll-margin-top: 70px; }
.report:focus { outline: none; }
.verdict { display: flex; gap: 18px; border-radius: 18px; padding: 20px; margin-bottom: 16px; border: 2px solid; background: var(--surface); box-shadow: var(--shadow); scroll-margin-top: 70px; }
.verdict:focus { outline: none; }
.verdict h2 { margin: 0 0 .3em; font-size: 1.4rem; }
.verdict p { margin: 0 0 .5em; }
.v-tag { font-weight: 800; text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; }
.v-icon { flex: none; width: 54px; height: 54px; border-radius: 50%; position: relative; }
.v-icon::after { position: absolute; inset: 0; display: grid; place-items: center; font: 800 1.6rem/54px var(--sans); text-align: center; color: #fff; }
.v-good { border-color: var(--good); } .v-good .v-tag { color: var(--good); } .v-good .v-icon { background: var(--good); } .v-good .v-icon::after { content: "✓"; }
.v-bad { border-color: var(--bad); } .v-bad .v-tag { color: var(--bad); } .v-bad .v-icon { background: var(--bad); } .v-bad .v-icon::after { content: "!"; }
.v-warn { border-color: var(--warn); } .v-warn .v-tag { color: var(--warn); } .v-warn .v-icon { background: var(--warn); } .v-warn .v-icon::after { content: "?"; }
.v-unknown { border-color: var(--unknown); } .v-unknown .v-tag { color: var(--unknown); } .v-unknown .v-icon { background: var(--unknown); } .v-unknown .v-icon::after { content: "…"; }
@media (prefers-color-scheme: dark) { .v-icon::after { color: #10141c; } }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 8px; }
.chip { display: inline-flex; gap: 6px; align-items: center; padding: 5px 12px; border-radius: 999px; font-size: .85rem; font-weight: 600; text-decoration: none; border: 1.5px solid; }
.chip b { font-weight: 800; }
.c-good { color: var(--good); background: var(--good-t); } .c-bad { color: var(--bad); background: var(--bad-t); } .c-warn { color: var(--warn); background: var(--warn-t); }
.c-neutral { color: var(--neutral); background: var(--neutral-t); } .c-unknown { color: var(--unknown); background: var(--unknown-t); }
.facts { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 22px; padding: 0; margin: 8px 0 0; font-size: .92rem; }
.facts li { display: flex; flex-direction: column; min-width: 0; }
.facts span { color: var(--muted); font-size: .76rem; text-transform: uppercase; letter-spacing: .06em; }
.facts b { overflow-wrap: anywhere; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 18px; margin-bottom: 16px; box-shadow: var(--shadow); scroll-margin-top: 70px; min-width: 0; }
.card h3 { margin: 0 0 12px; display: flex; align-items: center; gap: 10px; font-size: 1.2rem; }
.card h4 { margin: 14px 0 6px; font-size: 1rem; }
.card h4 .muted { font-weight: 400; font-size: .88rem; }
.card h4.sub { border-top: 1px solid var(--line); padding-top: 14px; margin-top: 18px; }
.count { background: var(--surface2); color: var(--muted); font-size: .8rem; font-weight: 600; padding: 2px 9px; border-radius: 999px; }
.ico { width: 30px; height: 30px; border-radius: 9px; background: var(--brand-t); flex: none; position: relative; }
.ico::before { content: ""; position: absolute; inset: 7px; background: var(--brand-d); -webkit-mask: var(--m) center/contain no-repeat; mask: var(--m) center/contain no-repeat; }
.ico-flag { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3 1h1.5v14H3zM5 2h8l-2 3 2 3H5z'/%3E%3C/svg%3E"); }
.ico-shield { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 1l6 2.5V8c0 3.5-2.6 6-6 7-3.4-1-6-3.5-6-7V3.5z'/%3E%3C/svg%3E"); }
.ico-chain { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M6.5 4.5h-2a3.5 3.5 0 000 7h2V10h-2a2 2 0 010-4h2zM9.5 4.5h2a3.5 3.5 0 010 7h-2V10h2a2 2 0 000-4h-2zM5 7.2h6v1.6H5z'/%3E%3C/svg%3E"); }
.ico-user { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='8' cy='5' r='3.2'/%3E%3Cpath d='M1.5 15c.5-3.6 3.2-5.5 6.5-5.5s6 1.9 6.5 5.5z'/%3E%3C/svg%3E"); }
.ico-route { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='3' cy='13' r='2.2'/%3E%3Ccircle cx='13' cy='3' r='2.2'/%3E%3Cpath d='M3 10V8.5C3 6 5 6 8 6s5 0 5-2.5h-1.6c0 1-1 1-3.4 1S1.4 4.5 1.4 8.5V10z'/%3E%3C/svg%3E"); }
.ico-code { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M5.3 3.5L1 8l4.3 4.5 1.1-1.1L3.2 8l3.2-3.4zM10.7 3.5L15 8l-4.3 4.5-1.1-1.1L12.8 8 9.6 4.6z'/%3E%3C/svg%3E"); }
.badge { display: inline-block; font: 700 .82rem/1.2 var(--mono); padding: 3px 9px; border-radius: 7px; border: 1.5px solid; white-space: nowrap; text-decoration: none; }
a.badge:hover { filter: brightness(.95); }
.b-good { color: var(--good); background: var(--good-t); } .b-bad { color: var(--bad); background: var(--bad-t); } .b-warn { color: var(--warn); background: var(--warn-t); }
.b-neutral { color: var(--neutral); background: var(--neutral-t); } .b-unknown { color: var(--unknown); background: var(--unknown-t); }
.ok-line { color: var(--good); font-weight: 600; margin: 0; }
.flags { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.flag { display: flex; gap: 12px; padding: 12px; border-radius: 12px; border-left: 5px solid; background: var(--surface2); }
.flag p { margin: .2em 0 0; font-size: .95rem; }
.flag b { font-size: 1rem; }
.sev { flex: none; font: 800 .7rem/1 var(--sans); text-transform: uppercase; letter-spacing: .07em; padding: 5px 7px; border-radius: 6px; height: fit-content; margin-top: 2px; color: #fff; }
.f-high { border-color: var(--bad); } .f-high .sev { background: var(--bad); }
.f-med { border-color: var(--warn); } .f-med .sev { background: var(--warn); }
.f-low { border-color: var(--neutral); } .f-low .sev { background: var(--neutral); }
@media (prefers-color-scheme: dark) { .sev { color: #10141c; } }
.infos { margin-top: 12px; font-size: .93rem; }
.infos summary { cursor: pointer; color: var(--muted); font-weight: 600; }
.infos ul { margin: 8px 0 0; padding-left: 20px; }
.infos li { margin-bottom: 6px; }
.hlink, .hback { font-size: .8rem; white-space: nowrap; margin-left: 4px; }
.method { margin-bottom: 6px; }
.res { padding: 10px 0; border-top: 1px dashed var(--line); }
.method h4 + .res { border-top: 0; padding-top: 2px; }
.res-h { display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; }
.res-d { font-size: .92rem; overflow-wrap: anywhere; }
.res-s { font-size: .8rem; color: var(--muted); }
.res-t { margin: .35em 0 0; }
.res-c { margin: .3em 0 0; font-size: .82rem; color: var(--muted); font-family: var(--mono); overflow-wrap: anywhere; }
.res-l { margin: .3em 0 0; font-size: .88rem; }
.align { display: grid; gap: 10px; }
.al-from { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; background: var(--brand-t); border-radius: 10px; padding: 10px 12px; }
.al-from b { font-size: 1.1rem; overflow-wrap: anywhere; }
.al-k { font-size: .74rem; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); font-weight: 700; }
.al-org { font-size: .82rem; color: var(--muted); }
.align ul { list-style: none; margin: 0; padding: 0 0 0 22px; display: grid; gap: 8px; border-left: 3px solid var(--line); margin-left: 14px; }
.align li { position: relative; display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; padding: 8px 10px; border-radius: 10px; background: var(--surface2); }
.align li b { overflow-wrap: anywhere; }
.al-line { position: absolute; left: -25px; top: 50%; width: 22px; border-top: 3px solid var(--line); }
.al-ok { box-shadow: inset 3px 0 0 var(--good); } .al-ok .al-line { border-color: var(--good); }
.al-mis { box-shadow: inset 3px 0 0 var(--warn); } .al-mis .al-line { border-top-style: dashed; border-color: var(--warn); }
.al-no { box-shadow: inset 3px 0 0 var(--bad); } .al-no .al-line { border-top-style: dotted; }
.al-why { flex-basis: 100%; font-size: .86rem; color: var(--muted); }
.al-sum { font-size: .9rem; color: var(--muted); }
.note { background: var(--warn-t); border-radius: 10px; padding: 10px 12px; font-size: .92rem; }
.sigs { margin: 0; padding-left: 18px; font-size: .93rem; }
.sigs li { margin-bottom: 4px; overflow-wrap: anywhere; }
.arc { margin: 0; padding-left: 20px; }
.arc li { margin-bottom: 10px; overflow-wrap: anywhere; }
.arc-res { margin-top: 4px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: .88rem; color: var(--muted); }
.kvs { margin: 0; display: grid; gap: 0; }
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 10px; padding: 8px 0; border-top: 1px solid var(--line); }
.kv:first-child { border-top: 0; }
.kv dt { color: var(--muted); font-size: .88rem; font-weight: 600; }
.kv dd { margin: 0; overflow-wrap: anywhere; min-width: 0; }
.disp { font-weight: 600; }
.prov { display: inline-block; background: var(--surface2); border: 1px solid var(--line); border-radius: 7px; padding: 1px 8px; font-size: .82rem; margin: 2px 4px 2px 0; }
/* timeline */
.timeline { list-style: none; margin: 8px 0 12px; padding: 0; position: relative; }
.timeline::before { content: ""; position: absolute; left: 17px; top: 18px; bottom: 18px; width: 3px; background: linear-gradient(var(--line), var(--brand-t)); border-radius: 2px; }
.timeline li { position: relative; padding: 0 0 18px 52px; min-height: 40px; }
.tl-dot { position: absolute; left: 0; top: 0; width: 37px; height: 37px; border-radius: 50%; background: var(--navy); color: #fff; font: 700 .95rem/37px var(--sans); text-align: center; border: 3px solid var(--bg); }
.tl-start .tl-dot { background: var(--brand); width: 37px; }
.tl-start .tl-dot::after { content: "✎"; color: #fff; }
.tl-entry .tl-dot { background: var(--brand-d); box-shadow: 0 0 0 4px var(--brand-t); }
.tl-body { background: var(--surface2); border-radius: 12px; padding: 10px 12px; min-width: 0; }
.tl-start .tl-body { background: transparent; padding: 7px 0; }
.tl-by { font-weight: 700; overflow-wrap: anywhere; }
.tl-from, .tl-meta, .tl-time { font-size: .9rem; overflow-wrap: anywhere; }
.tl-from { color: var(--muted); }
.ip { background: transparent; border: 0; padding: 0; color: var(--ink); font-weight: 600; }
.tls { color: var(--good); } .notls { color: var(--muted); }
.tl-note { margin-top: 6px; font-size: .85rem; background: var(--brand-t); border-radius: 8px; padding: 6px 9px; }
.delay { display: inline-block; font: 700 .8rem/1 var(--mono); padding: 5px 9px; border-radius: 999px; margin: 0 0 6px; }
.d-ok { background: var(--good-t); color: var(--good); } .d-warn { background: var(--warn-t); color: var(--warn); } .d-bad { background: var(--bad-t); color: var(--bad); } .d-skew { background: var(--unknown-t); color: var(--unknown); }
/* header view */
.legend { display: flex; gap: 8px; flex-wrap: wrap; font-size: .8rem; margin: 0 0 8px; }
.legend span { padding: 2px 8px; border-radius: 6px; }
.hl-sender { background: var(--hl-sender); } .hl-route { background: var(--hl-route); } .hl-auth { background: var(--hl-auth); } .hl-arc { background: var(--hl-arc); }
.hv { font: 12.5px/1.55 var(--mono); background: var(--surface2); border: 1px solid var(--line); border-radius: 12px; padding: 8px 0; max-height: 640px; overflow: auto; }
.hf { padding: 3px 12px; white-space: pre-wrap; overflow-wrap: anywhere; border-left: 4px solid transparent; scroll-margin-top: 80px; }
.hf + .hf { border-top: 1px solid var(--line); }
.hn { color: var(--brand-d); font-weight: 700; }
.hf.hl-sender { border-left-color: var(--brand); } .hf.hl-route { border-left-color: #4a7fd6; } .hf.hl-auth { border-left-color: var(--good); } .hf.hl-arc { border-left-color: #8a63c9; }
.hf:target, .hf.flash { outline: 3px solid var(--brand); outline-offset: -3px; }
.hback { font-family: var(--sans); }
.notes { font-size: .85rem; }

/* sections on home */
.band { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 8px 20px 18px; margin: 30px 0; }
.feat { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.fcard h3 { margin: 10px 0 4px; }
.fcard p { margin: 0; font-size: .95rem; color: var(--muted); }
.ficon { display: block; width: 44px; height: 44px; border-radius: 12px; background: var(--brand-t); position: relative; }
.ficon::before { content: ""; position: absolute; inset: 11px; background: var(--brand-d); -webkit-mask: var(--m) center/contain no-repeat; mask: var(--m) center/contain no-repeat; }
.fi-shield { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 1l6 2.5V8c0 3.5-2.6 6-6 7-3.4-1-6-3.5-6-7V3.5z'/%3E%3C/svg%3E"); }
.fi-route { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='3' cy='13' r='2.2'/%3E%3Ccircle cx='13' cy='3' r='2.2'/%3E%3Cpath d='M3 10V8.5C3 6 5 6 8 6s5 0 5-2.5h-1.6c0 1-1 1-3.4 1S1.4 4.5 1.4 8.5V10z'/%3E%3C/svg%3E"); }
.fi-flag { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3 1h1.5v14H3zM5 2h8l-2 3 2 3H5z'/%3E%3C/svg%3E"); }
.fi-code { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M5.3 3.5L1 8l4.3 4.5 1.1-1.1L3.2 8l3.2-3.4zM10.7 3.5L15 8l-4.3 4.5-1.1-1.1L12.8 8 9.6 4.6z'/%3E%3C/svg%3E"); }
.caveat { margin: 16px 0 0; font-size: .92rem; color: var(--muted); }
.sec-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.sec-head h2 { margin-bottom: .2em; }
.sec-sub { color: var(--muted); margin-top: 0; }
.egrid { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin: 14px 0 10px; }
.egrid > * { flex: 0 1 calc((100% - 2 * 14px) / 3); min-width: 0; }   /* 3/2/1 at the old auto-fill widths, short last row centred (PARK-56) */
@media (max-width: 964px) { .egrid > * { flex-basis: calc((100% - 14px) / 2); } }
@media (max-width: 646px) { .egrid > * { flex-basis: 100%; } }
.ecard { display: flex; flex-direction: column; gap: 6px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 16px; text-decoration: none; color: var(--ink); box-shadow: var(--shadow); border-top: 5px solid var(--neutral); transition: transform .15s; }
.ecard:hover { color: var(--ink); transform: translateY(-2px); }
.ecard.t-good { border-top-color: var(--good); } .ecard.t-bad { border-top-color: var(--bad); } .ecard.t-warn { border-top-color: var(--warn); }
.ec-top { font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 800; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.t-good .ec-top { color: var(--good); } .t-bad .ec-top { color: var(--bad); } .t-warn .ec-top { color: var(--warn); }
.vdot { width: 9px; height: 9px; border-radius: 50%; background: currentColor; }
.ec-t { font-weight: 700; font-size: 1.1rem; }
.ec-s { color: var(--muted); font-size: .93rem; flex: 1; }
.ec-chips { display: flex; flex-wrap: wrap; gap: 5px; }
.mini { font: 700 .7rem/1 var(--mono); padding: 4px 6px; border-radius: 5px; background: var(--neutral-t); color: var(--neutral); }
.mini.m-pass { background: var(--good-t); color: var(--good); } .mini.m-fail { background: var(--bad-t); color: var(--bad); }
.mini.m-softfail, .mini.m-temperror, .mini.m-permerror { background: var(--warn-t); color: var(--warn); }
.gsecs { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.gsecs > * { flex: 0 1 calc((100% - 4 * 12px) / 5); min-width: 0; }   /* 5 sections: 5 / 3+2 centred / 1 (PARK-56) */
@media (max-width: 1000px) { .gsecs > * { flex-basis: calc((100% - 2 * 12px) / 3); } }
@media (max-width: 560px) { .gsecs > * { flex-basis: 100%; } }
.gsec ul { font-size: .9rem !important; }
.gsec { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 14px 16px; }
.gsec h3 { margin: 0 0 6px; } .gsec h3 a { color: var(--ink); text-decoration: none; }
.gsec ul { margin: 0; padding-left: 18px; font-size: .95rem; } .gsec li { margin: 4px 0; }
.rgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 30px; }
.rcol { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 14px 16px; }
.rcol h3 { margin: 0 0 4px; }
.rcol .muted { font-size: .88rem; }
.rlinks { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; }

/* pages */
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 4px; padding: 0; margin: 18px 0 0; font-size: .88rem; color: var(--muted); }
.crumbs li + li::before { content: "›"; margin-right: 4px; }
.crumbs a { color: var(--muted); }
.page-h { margin-bottom: 18px; }
.page-h .lede { max-width: 50em; }
.doc-h { margin-bottom: 8px; }
.meta { color: var(--muted); font-size: .88rem; }
.doc-grid { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 36px; align-items: start; }
.doc-grid > .prose:only-child { grid-column: 1 / -1; }
.toc { position: sticky; top: 80px; font-size: .9rem; border-left: 3px solid var(--brand-t); padding-left: 14px; }
.toc p { font-weight: 700; margin: 0 0 6px; text-transform: uppercase; font-size: .75rem; letter-spacing: .08em; color: var(--muted); }
.toc ol { margin: 0; padding-left: 16px; }
.toc li { margin: 5px 0; }
.toc a { color: var(--ink); text-decoration: none; }
.toc a:hover { color: var(--brand-d); }
.prose { max-width: 760px; min-width: 0; }
.prose.wide { max-width: 980px; }
.prose h2 { scroll-margin-top: 80px; }
.prose li { margin: .3em 0; }
.prose img { border-radius: 10px; }
pre.hblock { background: var(--code-bg); color: var(--code-ink); border-radius: 12px; padding: 14px 16px; overflow-x: auto; font-size: 12.5px; line-height: 1.55; }
pre.hblock code { background: none; border: 0; padding: 0; color: inherit; white-space: pre; overflow-wrap: normal; font-size: inherit; }
pre.hblock .hn { color: var(--code-name); }
.prose pre:not(.hblock) { background: var(--surface2); border: 1px solid var(--line); border-radius: 10px; padding: 12px; overflow-x: auto; }
.prose pre:not(.hblock) code { background: none; border: 0; padding: 0; overflow-wrap: normal; }
.tablewrap { overflow-x: auto; margin: 1em 0; border: 1px solid var(--line); border-radius: 12px; }
table { border-collapse: collapse; width: 100%; font-size: .93rem; background: var(--surface); }
th, td { text-align: left; padding: 9px 12px; border-top: 1px solid var(--line); vertical-align: top; }
thead th { background: var(--surface2); border-top: 0; font-size: .85rem; }
td.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
td.ok { color: var(--good); font-weight: 700; } td.bad { color: var(--bad); font-weight: 700; }
.callout { margin: 1.2em 0; padding: 12px 16px; border-radius: 12px; background: var(--surface2); border-left: 5px solid var(--neutral); }
.callout p { margin: .3em 0; }
.c-tip { border-color: var(--good); background: var(--good-t); }
.c-warn { border-color: var(--warn); background: var(--warn-t); }
.c-rfc { border-color: #4a7fd6; background: var(--hl-route); }
.c-tool { border-color: var(--brand); background: var(--brand-t); }
.prose blockquote:not(.callout) { margin: 1em 0; padding: 4px 16px; border-left: 4px solid var(--line); color: var(--muted); }
a.ext::after { content: "↗"; font-size: .75em; margin-left: 2px; }
.cta { display: flex; gap: 16px; align-items: center; background: var(--brand-t); border-radius: 16px; padding: 16px 18px; margin: 30px 0 20px; }
.cta-dingo { flex: none; width: 130px; }
.cta-dingo .dingo { width: 130px; display: block; }
.cta p { margin: 0 0 8px; }
.cta-t { font-weight: 800; font-size: 1.1rem; }
.refs { border-top: 1px solid var(--line); margin-top: 20px; font-size: .9rem; }
.refs h2 { font-size: 1rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-top: 1.2em; }
.refs ul { columns: 2; padding-left: 18px; margin: 0; }
.related { margin: 10px 0 20px; }
.ggrid { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.ggrid > * { flex: 0 1 calc((100% - 3 * 12px) / 4); min-width: 0; }   /* 4/3/2/1 at the old auto-fill widths, short last row centred (PARK-56) */
@media (max-width: 1108px) { .ggrid > * { flex-basis: calc((100% - 2 * 12px) / 3); } }
@media (max-width: 836px) { .ggrid > * { flex-basis: calc((100% - 12px) / 2); } }
@media (max-width: 564px) { .ggrid > * { flex-basis: 100%; } }
@media (min-width: 961px) { .related .ggrid > * { flex-basis: calc((100% - 2 * 12px) / 3); } }   /* beside the guide sidebar: 3 columns, as before */
.gcard { display: flex; flex-direction: column; gap: 4px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 14px 16px; text-decoration: none; color: var(--ink); box-shadow: var(--shadow); }
.gcard:hover { border-color: var(--brand); color: var(--ink); }
.gc-t { font-weight: 700; }
.gc-s { color: var(--muted); font-size: .9rem; }
.next { font-weight: 600; margin: 10px 0 30px; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 0; }
.pills a { background: var(--surface); border: 1px solid var(--line); padding: 6px 12px; border-radius: 999px; text-decoration: none; color: var(--ink); font-size: .92rem; }
.pills a:hover { border-color: var(--brand); }
.gindex, .rindex { scroll-margin-top: 70px; }
.res-hero { display: flex; gap: 20px; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 20px; margin: 14px 0; }
.res-hero h1 { margin: 0 0 .2em; }
.res-hero .lede { margin: 0; }
.bigbadge { flex: none; margin: 0; font: 600 1.15rem/1 var(--mono); padding: 18px 16px; border-radius: 14px; border: 2px solid; text-align: center; }
.bigbadge b { display: block; font-size: 1.5rem; margin-top: 4px; }
.siblings { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: .9rem; margin-bottom: 18px; color: var(--muted); }
.rtable { display: grid; gap: 8px; }
.rrow { display: grid; grid-template-columns: 170px 1fr; gap: 14px; align-items: baseline; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; text-decoration: none; color: var(--ink); }
.rrow:hover { border-color: var(--brand); color: var(--ink); }
.rrow .badge { justify-self: start; }
.iana code { white-space: nowrap; }
.lesson { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 4px 20px 12px; max-width: none; margin-bottom: 20px; }
.lesson h2 { margin-top: .8em; }
.rep-h { margin-bottom: 0; }
.pager { display: flex; justify-content: space-between; gap: 12px; margin: 10px 0 14px; font-weight: 600; }
.statrow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 10px 0 20px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 14px; }
.stat b { display: block; font-size: 1.6rem; line-height: 1.1; }
.stat span { color: var(--muted); font-size: .85rem; }
.stat.ok b { color: var(--good); } .stat.bad b { color: var(--bad); }
.about { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 30px; align-items: start; }
.about-art .dingo { width: 100%; }
.empty { text-align: center; padding: 30px 0 50px; max-width: 560px; margin: 0 auto; }
.empty-art .dingo { width: 260px; }

/* footer */
.foot { background: var(--navy); color: #c5ccda; margin-top: 50px; padding: 28px 0 22px; font-size: .9rem; }
.foot a { color: #ffc48d; }
.fcols { display: grid; grid-template-columns: 1fr 1.3fr; gap: 30px; }
.fbrand { display: flex; align-items: center; gap: 8px; color: #fff; font-weight: 700; font-size: 1.05rem; }
.fnav { border-top: 1px solid #34405e; padding-top: 14px; margin-top: 12px; }

@media (max-width: 960px) {
  .feat { grid-template-columns: repeat(2, 1fr); }
  .rgrid { grid-template-columns: repeat(2, 1fr); }
  .doc-grid { grid-template-columns: 1fr; gap: 0; }
  .toc { position: static; margin-bottom: 10px; }
  .statrow { grid-template-columns: repeat(2, 1fr); }
  .about { grid-template-columns: 1fr; }
  .about-art { max-width: 320px; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .wide { display: none; }
  .bar { flex-wrap: wrap; gap: 0 8px; min-height: 0; padding-top: 8px; }
  .brand { font-size: 1.1rem; } .brand img { width: 28px; height: 28px; }
  .top nav { margin: 4px -8px 0; width: calc(100% + 16px); padding: 0 8px 6px; }
  .top nav a { padding: 6px 10px; font-size: .92rem; }
  .try { flex-wrap: nowrap; overflow-x: auto; margin-right: -14px; padding-right: 14px; scrollbar-width: thin; }
  .try-l { flex: none; } .try-b { flex: none; }
  .hero-in { grid-template-columns: 1fr; padding-top: 14px; gap: 0; }
  .hero-art { order: -1; max-width: 250px; margin: 0 auto -6px; }
  .lede { font-size: 1.03rem; }
  .tool { padding: 14px; margin-top: 16px; border-radius: 14px; }
  textarea#hdrs { min-height: 170px; font-size: 12.5px; }
  .tool-bar .btn-go { flex: 1; }
  .verdict { flex-direction: column; gap: 10px; padding: 16px; }
  .v-icon { width: 44px; height: 44px; } .v-icon::after { line-height: 44px; font-size: 1.3rem; }
  .card { padding: 14px; }
  .kv { grid-template-columns: 1fr; gap: 2px; }
  .timeline li { padding-left: 44px; }
  .tl-dot { width: 32px; height: 32px; line-height: 32px; font-size: .85rem; }
  .timeline::before { left: 15px; }
  .feat { grid-template-columns: 1fr; }
  .rgrid { grid-template-columns: 1fr; }
  .fcols { grid-template-columns: 1fr; gap: 6px; }
  .refs ul { columns: 1; }
  .cta { flex-direction: column; align-items: flex-start; }
  .cta-dingo { width: 110px; } .cta-dingo .dingo { width: 110px; }
  .res-hero { flex-direction: column; align-items: flex-start; }
  .rrow { grid-template-columns: 1fr; gap: 4px; }
  .statrow { grid-template-columns: 1fr 1fr; }
  .band { padding: 4px 14px 14px; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }
@media print { .top, .foot, .tool, .cta { display: none; } }