/* CoreInto portal: shared foundation. Every part loads this first, then its own sheet
   (main, docs, dev, community, ideas, status, verify, admin). Square corners throughout. */
@font-face { font-family: "Space Grotesk"; src: url(/assets/fonts/space-grotesk-latin-500-normal.woff2) format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Space Grotesk"; src: url(/assets/fonts/space-grotesk-latin-700-normal.woff2) format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Inter"; src: url(/assets/fonts/inter-latin-400-normal.woff2) format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Inter"; src: url(/assets/fonts/inter-latin-600-normal.woff2) format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Inter"; src: url(/assets/fonts/inter-latin-700-normal.woff2) format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url(/assets/fonts/jetbrains-mono-latin-400-normal.woff2) format("woff2"); font-weight: 400; font-display: swap; }

:root {
  /* brand: Core Grid navy and the core teal */
  --navy: #13305a; --navy-2: #1b4278; --navy-3: #0b1f3b; --navy-4: #071528;
  --teal: #0e7c72; --teal-2: #2ec4b6; --teal-3: #8fe3da; --teal-soft: #e2f6f3;
  --amber: #f5a524; --amber-soft: #fff3dc;
  --ink: #0d1b2e; --text: #1b2430; --muted: #4a5563; --faint: #6b7684;
  --line: #d6dce3; --line-2: #c3ccd6; --bg: #ffffff; --soft: #f4f6f8; --soft-2: #eaeef2;
  --ok: #0f7a50; --ok-soft: #e3f5ec; --warn: #9a5b00; --warn-soft: #fff4e0; --bad: #b42318; --bad-soft: #fdecea; --info: #1f5fa8; --info-soft: #e8f1fb;
  --radius: 0; --radius-sm: 0; --radius-lg: 0;
  --shadow: 0 1px 0 rgba(13, 27, 46, .04);
  --shadow-lg: 6px 6px 0 rgba(18, 48, 90, .12);
  --font: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --display: "Space Grotesk", "Inter", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --wrap: 1220px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 96px; }
body { margin: 0; font: 16px/1.65 var(--font); color: var(--text); background: var(--bg); overflow-x: hidden; }
img, svg, video { max-width: 100%; height: auto; }
a { color: var(--teal); text-decoration: underline; text-decoration-thickness: 1px; text-decoration-color: rgba(14, 124, 114, .35); text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }
h1, h2, h3, h4 { font-family: var(--display); color: var(--ink); line-height: 1.15; margin: 0 0 .6em; letter-spacing: -.015em; font-weight: 700; }
h1 { font-size: clamp(2.1rem, 4.4vw, 3.4rem); letter-spacing: -.03em; }
h2 { font-size: clamp(1.55rem, 2.7vw, 2.2rem); }
h3 { font-size: 1.22rem; }
h4 { font-size: 1.04rem; }
p { margin: 0 0 1em; }
ul, ol { padding-left: 1.3em; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }
code, kbd, pre { font-family: var(--mono); font-size: .9em; }
:focus-visible { outline: 3px solid var(--teal-2); outline-offset: 2px; }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 100; background: var(--ink); color: #fff; padding: 8px 14px; }
.skip:focus { left: 8px; }
.wrap { width: min(var(--wrap), 100% - 32px); margin-inline: auto; }
.narrow { width: min(820px, 100% - 32px); margin-inline: auto; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.ico { vertical-align: -.2em; flex: none; }
.stack > * + * { margin-top: 1rem; }
.nolink, .nolink:hover { text-decoration: none; color: inherit; }

/* logo: the Ci mark with a blinking dot, then "Core" (navy) "Into" (teal) */
.logo { display: inline-flex; align-items: center; gap: .6rem; line-height: 1; }
.logo-word { font: 500 1.42rem/1 var(--display); letter-spacing: -.01em; }
.logo .w1 { color: #13305a; }
.logo .w2 { color: var(--teal-2); }
.logo-light .w1 { color: #fff; }
.logo-mark .core { transform-box: fill-box; transform-origin: center; animation: corePulse 1.8s ease-in-out infinite; }
@keyframes corePulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .35; transform: scale(.62); } }
a.brand, a.brand:hover { text-decoration: none; display: inline-flex; align-items: center; gap: .25rem; }

/* buttons: square, solid */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .45rem; padding: .74rem 1.25rem; border: 2px solid transparent;
  font: 600 .96rem/1.2 var(--font); cursor: pointer; text-decoration: none !important; transition: transform .12s, box-shadow .12s, background .12s, color .12s; white-space: nowrap; }
.btn:hover { transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--ink); }
.btn:active { transform: none; box-shadow: none; }
.btn-primary { background: var(--teal-2); color: var(--ink); border-color: var(--ink); }
.btn-dark { background: var(--navy); color: #fff; border-color: var(--navy); }
.btn-light { background: #fff; color: var(--ink); border-color: var(--ink); }
.btn-ghost { background: transparent; color: inherit; border-color: currentColor; }
.btn-ghost:hover { box-shadow: 4px 4px 0 currentColor; }
.btn-white { background: #fff; color: var(--navy); border-color: #fff; }
.btn-white:hover { box-shadow: 4px 4px 0 var(--teal-2); }
.btn-sm { padding: .42rem .8rem; font-size: .86rem; }
.btn-lg { padding: .95rem 1.6rem; font-size: 1.04rem; }
.btn-block { width: 100%; }
.btn-danger { background: var(--bad); color: #fff; border-color: var(--bad); }
.link-btn { background: none; border: 0; padding: 0; color: var(--teal); font: inherit; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.more { font-weight: 600; text-decoration: underline; text-underline-offset: 4px; }

/* forms */
label { display: block; font-weight: 600; font-size: .92rem; color: var(--ink); margin-bottom: .35rem; }
.field { margin-bottom: 1rem; }
.field small, .hint { display: block; color: var(--muted); font-size: .84rem; margin-top: .3rem; font-weight: 400; }
input:not([type]), input[type=text], input[type=tel], input[type=date], input[type=email], input[type=password], input[type=url], input[type=search], input[type=number], input[type=datetime-local], select, textarea {
  width: 100%; padding: .72rem .85rem; border: 1px solid var(--line-2); border-radius: 0; font: 15px/1.4 var(--font); color: var(--ink); background: #fff; transition: border .12s, box-shadow .12s; }
textarea { min-height: 140px; resize: vertical; }
textarea.code-input { font-family: var(--mono); font-size: 13.5px; min-height: 320px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--navy); box-shadow: 3px 3px 0 var(--teal-2); }
.check { display: flex; gap: .55rem; align-items: flex-start; font-weight: 500; }
.check input { margin-top: .3rem; accent-color: var(--teal); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.hp { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.captcha-note { font-size: .76rem; color: var(--faint); margin-top: .8rem; }
.captcha-note a { color: inherit; }
.grecaptcha-badge { visibility: hidden; }

/* messages */
.flash, .alert { padding: .85rem 1.1rem; margin: 0 0 1.2rem; border: 1px solid; border-left-width: 5px; font-size: .95rem; }
.flash-ok, .alert-ok { background: var(--ok-soft); border-color: var(--ok); color: #0b5134; }
.flash-bad, .alert-bad { background: var(--bad-soft); border-color: var(--bad); color: #7a1a12; }
.alert-info { background: var(--info-soft); border-color: var(--info); color: #133f72; }
.alert-warn { background: var(--warn-soft); border-color: var(--warn); color: #663c00; }
.announce { background: var(--teal-2); color: var(--ink); text-align: center; font-size: .9rem; font-weight: 600; padding: .5rem 16px; }
.announce a { color: var(--ink); }

/* badges */
.badge { display: inline-flex; align-items: center; gap: .3rem; padding: .16rem .55rem; font-size: .74rem; font-weight: 700; letter-spacing: .02em; background: var(--soft-2); color: var(--muted); white-space: nowrap; border: 1px solid transparent; }
.badge-teal { background: var(--teal-soft); color: #0a5f57; }
.badge-ok { background: var(--ok-soft); color: var(--ok); }
.badge-warn { background: var(--warn-soft); color: var(--warn); }
.badge-bad { background: var(--bad-soft); color: var(--bad); }
.badge-info { background: var(--info-soft); color: var(--info); }
.badge-dark { background: var(--ink); color: #fff; }
.badge-line { background: transparent; border-color: currentColor; }
.eyebrow { display: inline-flex; align-items: center; gap: .5rem; font: 700 .76rem/1 var(--font); letter-spacing: .14em; text-transform: uppercase; color: var(--teal); margin-bottom: 1rem; }
.eyebrow::before { content: ""; width: 10px; height: 10px; background: var(--teal-2); }

/* breadcrumbs */
.crumbs { font-size: .85rem; color: var(--muted); margin: 0 0 1rem; }
.crumbs ol { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .35rem; }
.crumbs li + li::before { content: "/"; margin-right: .35rem; color: var(--line-2); }
.crumbs a { color: var(--muted); }
.crumbs [aria-current] { color: var(--ink); }

/* cards and grids */
.card { background: #fff; border: 1px solid var(--line); padding: 1.4rem; }
.card h3 { margin-bottom: .4rem; }
a.card { display: block; color: inherit; text-decoration: none; transition: transform .12s, box-shadow .12s, border-color .12s; }
a.card:hover { transform: translate(-3px, -3px); box-shadow: 6px 6px 0 var(--navy); border-color: var(--navy); }
a.card:hover h3 { text-decoration: underline; text-underline-offset: 4px; }
.grid { display: grid; gap: 1.25rem; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.icon-tile { width: 46px; height: 46px; display: grid; place-items: center; background: var(--navy); color: var(--teal-3); margin-bottom: .9rem; }

/* prose: rendered Markdown */
.prose { font-size: 1.04rem; line-height: 1.78; color: var(--text); }
.prose > :first-child { margin-top: 0; }
.prose h2 { margin: 2.2em 0 .7em; padding-top: .2em; }
.prose h3 { margin: 1.8em 0 .55em; }
.prose h4 { margin: 1.5em 0 .5em; }
.prose h2 .anchor, .prose h3 .anchor, .prose h4 .anchor { opacity: 0; margin-left: .4rem; color: var(--faint); font-weight: 400; text-decoration: none; }
.prose h2:hover .anchor, .prose h3:hover .anchor, .prose h4:hover .anchor { opacity: 1; }
.prose ul, .prose ol { margin: 0 0 1.1em; }
.prose li { margin: .3em 0; }
.prose ul > li::marker { color: var(--teal-2); }
.prose img { border: 1px solid var(--line); }
.prose blockquote { margin: 1.2em 0; padding: .3em 1.1em; border-left: 4px solid var(--teal-2); color: var(--muted); }
.prose :not(pre) > code { background: var(--soft-2); color: #123a63; padding: .12em .38em; font-size: .87em; word-break: break-word; }
.code { position: relative; margin: 1.1em 0 1.4em; }
.code pre { margin: 0; background: var(--navy-4); color: #d8e4ef; padding: 1.05rem 4.8rem 1.05rem 1.2rem; overflow-x: auto; font-size: .86rem; line-height: 1.6; border-left: 4px solid var(--teal-2); }
.code .copy { position: absolute; top: .5rem; right: .5rem; background: rgba(255, 255, 255, .08); color: #c9d8e5; border: 1px solid rgba(255, 255, 255, .2); font: 600 .74rem var(--font); padding: .3rem .6rem; cursor: pointer; }
.code .copy:hover { background: rgba(255, 255, 255, .18); }
.code .copy.done { background: var(--teal-2); color: var(--ink); }
.table-wrap { overflow-x: auto; margin: 1.2em 0; border: 1px solid var(--line); }
.prose table, table.t { width: 100%; border-collapse: collapse; font-size: .94rem; }
.prose th, .prose td, table.t th, table.t td { padding: .65rem .85rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose th, table.t th { background: var(--soft); color: var(--ink); font-weight: 650; }
.prose tr:last-child td, table.t tr:last-child td { border-bottom: 0; }
.callout { margin: 1.3em 0; padding: 1rem 1.15rem; border: 1px solid var(--info); border-left-width: 5px; background: var(--info-soft); }
.callout p:last-child { margin-bottom: 0; }
.callout-tip { background: var(--ok-soft); border-color: var(--ok); }
.callout-warning { background: var(--warn-soft); border-color: var(--warn); }
.callout-important { background: var(--bad-soft); border-color: var(--bad); }

/* FAQ */
.faq-block h2 { margin-bottom: .4rem; }
.faq { margin-top: 1rem; border-top: 2px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--line); background: #fff; }
.faq summary { cursor: pointer; list-style: none; padding: 1.05rem 3rem 1.05rem 0; font-weight: 650; color: var(--ink); position: relative; font-size: 1.04rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: .3rem; top: 50%; width: 14px; height: 14px; margin-top: -7px;
  background: linear-gradient(var(--ink), var(--ink)) center/14px 2px no-repeat, linear-gradient(var(--ink), var(--ink)) center/2px 14px no-repeat; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); background: linear-gradient(var(--teal), var(--teal)) center/14px 2px no-repeat, linear-gradient(var(--teal), var(--teal)) center/2px 14px no-repeat; }
.faq summary:hover { color: var(--teal); }
.faq .answer { padding: 0 2rem 1.2rem 0; color: var(--text); }
.faq .answer p:last-child { margin: 0; }

/* table of contents */
.toc { font-size: .88rem; }
.toc strong { display: block; font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--faint); margin-bottom: .6rem; }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--line); }
.toc li a { display: block; padding: .28rem 0 .28rem .9rem; color: var(--muted); margin-left: -2px; border-left: 2px solid transparent; line-height: 1.35; text-decoration: none; }
.toc li.l3 a { padding-left: 1.7rem; font-size: .84rem; }
.toc li a:hover, .toc li a.on { color: var(--teal); border-left-color: var(--teal-2); }

/* pagination */
.pager { display: flex; gap: .4rem; justify-content: center; margin: 2rem 0; flex-wrap: wrap; }
.pager a, .pager span { min-width: 2.4rem; padding: .45rem .7rem; border: 1px solid var(--line); text-align: center; color: var(--text); text-decoration: none; }
.pager a:hover { border-color: var(--ink); }
.pager .on { background: var(--ink); color: #fff; border-color: var(--ink); }

/* error page */
.err { padding: 6rem 0; text-align: center; }
.err .code-n { font: 700 6rem/1 var(--display); color: var(--navy); letter-spacing: -.04em; }
.err .code-n span { color: var(--teal-2); }

@media (max-width: 980px) { .g4 { grid-template-columns: repeat(2, 1fr); } .g3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .g2, .g3, .g4, .row2 { grid-template-columns: 1fr; } body { font-size: 15.5px; } .card { padding: 1.15rem; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }

/* the bar above every public part: one portal, many places */
.sitebar { background: var(--navy-4); color: #9fb4c8; font-size: .8rem; }
.sitebar-in { display: flex; justify-content: space-between; align-items: center; gap: 1rem; min-height: 34px; }
.sitebar nav { display: flex; gap: 1.2rem; overflow-x: auto; scrollbar-width: none; }
.sitebar nav::-webkit-scrollbar { display: none; }
.sitebar a { color: #a9bccf; white-space: nowrap; padding: .45rem 0; display: inline-flex; align-items: center; gap: .3rem; text-decoration: none; }
.sitebar a:hover, .sitebar a.on { color: #fff; }
.sitebar a.on { box-shadow: inset 0 -3px 0 var(--teal-2); }
.sitebar-right { display: flex; gap: 1.1rem; }
@media (max-width: 760px) { .sitebar-right { display: none; } }

/* shared footer */
.foot { background: var(--navy-3); color: #a9bccf; padding: 3.5rem 0 1.5rem; font-size: .92rem; position: relative; }
.foot::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 6px; background: repeating-linear-gradient(90deg, var(--teal-2) 0 18px, transparent 18px 24px); }
.foot-grid { display: grid; grid-template-columns: 1.5fr repeat(5, 1fr); gap: 2rem; }
.foot h3 { color: #fff; font: 700 .78rem/1 var(--font); letter-spacing: .14em; text-transform: uppercase; margin-bottom: 1rem; }
.foot ul { list-style: none; padding: 0; margin: 0; }
.foot li { margin: .45rem 0; }
.foot a { color: #c2d1df; text-decoration: none; }
.foot a:hover { color: #fff; text-decoration: underline; }
.foot-brand p { max-width: 320px; margin-top: 1rem; }
.foot-social a { margin-right: .9rem; }
.foot-mails li { display: flex; gap: .45rem; align-items: center; }
.foot-base { display: flex; justify-content: space-between; flex-wrap: wrap; gap: .8rem; border-top: 1px solid rgba(255, 255, 255, .1); margin-top: 2.5rem; padding-top: 1.3rem; font-size: .84rem; }
@media (max-width: 1000px) { .foot-grid { grid-template-columns: repeat(3, 1fr); } .foot-brand { grid-column: 1 / -1; } }
@media (max-width: 560px) { .foot-grid { grid-template-columns: 1fr 1fr; } }

/* menu button (mobile) */
.navtoggle { display: none; background: none; border: 2px solid currentColor; padding: .35rem; color: inherit; cursor: pointer; line-height: 0; }

/* shared layout pieces */
.doc-grid { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 3rem; padding: 3rem 0; }
.doc-side .sticky, .dtoc .sticky { position: sticky; top: 96px; }
.side-card { margin-top: 1.5rem; padding: 1.1rem; border: 1px solid var(--line); border-top: 4px solid var(--teal-2); background: var(--soft); }
.side-card strong { display: block; margin-bottom: .3rem; color: var(--ink); }
.prevnext { display: flex; justify-content: space-between; gap: 1rem; margin: 2.5rem 0 1rem; flex-wrap: wrap; }
.plain-list { list-style: none; padding: 0; }
.plain-list li { padding: .6rem 0; border-bottom: 1px solid var(--line); }
.h3 { font-size: 1.22rem; }
.h4 { font-size: 1.02rem; }
.lead { font-size: 1.16rem; color: var(--muted); line-height: 1.6; max-width: 760px; }
.avatar { width: 34px; height: 34px; display: inline-grid; place-items: center; background: var(--navy); color: var(--teal-3); font-weight: 700; font-size: .9rem; flex: none; font-family: var(--display); }
.avatar-lg { width: 64px; height: 64px; font-size: 1.6rem; }
.err-search { display: flex; gap: .5rem; max-width: 460px; margin: 1.5rem auto; }
.tabs { display: flex; gap: 0; flex-wrap: wrap; margin-bottom: 1rem; border-bottom: 2px solid var(--ink); }
.tabs a { padding: .55rem 1rem; color: var(--muted); font-weight: 600; font-size: .9rem; text-decoration: none; border: 1px solid transparent; border-bottom: 0; }
.tabs a[aria-selected=true] { background: var(--ink); color: #fff; }
.tabs a:hover { color: var(--ink); text-decoration: underline; }
@media (max-width: 1000px) { .doc-grid { grid-template-columns: 1fr; } .doc-side { display: none; } }

/* square pattern helpers used by heroes */
.grid-bg { background-image: linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px); background-size: 32px 32px; }
.grid-bg-light { background-image: linear-gradient(var(--soft-2) 1px, transparent 1px), linear-gradient(90deg, var(--soft-2) 1px, transparent 1px); background-size: 32px 32px; }