/* Coldfront site chrome: header (.cfn) + footer (.cff). 2026-10-15.
   Namespaced and element-agnostic so it can sit on any page, including ones
   that carry older global `nav {}` / `footer {}` / `h3 {}` rules. */

.cfn, .cff, .cfn-skip {
    --cfn-bg: #0f172a;
    --cfn-panel: #111a2e;
    --cfn-line: #24304a;
    --cfn-text: #e2e8f0;
    --cfn-muted: #94a3b8;
    --cfn-accent: #f97316;
    --cfn-accent-hover: #ea580c;
    --cfn-tile: #1a2540;
    font-family: 'Barlow', system-ui, -apple-system, 'Segoe UI', sans-serif;
    box-sizing: border-box;
}
.cfn *, .cff *, .cfn *::before, .cfn *::after, .cff *::before, .cff *::after { box-sizing: border-box; }

/* ---------- Skip link ---------- */
.cfn-skip {
    position: absolute; left: 12px; top: -60px; z-index: 2000;
    background: var(--cfn-accent); color: #fff; padding: 10px 16px; border-radius: 6px;
    font-weight: 700; text-decoration: none; transition: top .15s;
}
.cfn-skip:focus { top: 12px; }

/* ---------- Header ---------- */
.cfn {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(15, 23, 42, 0.92);
    -webkit-backdrop-filter: saturate(160%) blur(10px);
    backdrop-filter: saturate(160%) blur(10px);
    border-bottom: 1px solid var(--cfn-line);
    box-shadow: inset 0 -2px 0 var(--cfn-accent);
    color: var(--cfn-text);
    margin: 0; padding: 0;
}
.cfn-bar {
    max-width: 1240px; margin: 0 auto; height: 72px;
    padding: 0 24px; display: flex; align-items: center; gap: 28px;
}

.cfn-logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--cfn-text); flex: 0 0 auto; }
.cfn-logo img { width: 50px; height: auto; display: block; }
.cfn-word { display: flex; flex-direction: column; line-height: 1; }
.cfn-name {
    font-family: 'Archivo', 'Archivo Black', sans-serif; font-weight: 900; font-stretch: 125%;
    font-variation-settings: 'wdth' 125; font-size: 20.8px; letter-spacing: -0.01em; color: #fff;
}
.cfn-name span { color: var(--cfn-accent); }
.cfn-name sup { font-family: 'Barlow', sans-serif; font-size: 0.45em; font-weight: 600; margin-left: 1px; vertical-align: super; line-height: 0; }
.cfn-tag { font-family: 'Barlow Condensed', sans-serif; font-size: 10.88px; letter-spacing: 0.32em; text-transform: uppercase; color: var(--cfn-muted); margin-top: 5px; }

.cfn-menu { display: flex; align-items: center; flex: 1 1 auto; }
.cfn-list { list-style: none; display: flex; align-items: center; gap: 4px; margin: 0; padding: 0; }
.cfn-item { position: static; list-style: none; margin: 0; padding: 0; }

.cfn-trigger, .cfn-link {
    display: inline-flex; align-items: center; gap: 6px;
    background: none; border: 0; cursor: pointer;
    font-family: 'Barlow Condensed', sans-serif; font-weight: 600; font-size: 16.32px;
    letter-spacing: 0.06em; text-transform: uppercase; text-decoration: none;
    color: var(--cfn-text); padding: 10px 14px; border-radius: 8px; line-height: 1;
    transition: background .15s, color .15s;
}
.cfn-trigger:hover, .cfn-link:hover, .cfn-trigger[aria-expanded="true"] { background: rgba(255,255,255,0.06); color: #fff; }
.cfn-link[aria-current="page"], .cfn-trigger.is-current { color: var(--cfn-accent); }
.cfn-trigger svg { width: 12px; height: 12px; transition: transform .2s; }
.cfn-trigger[aria-expanded="true"] svg { transform: rotate(180deg); }
.cfn-trigger:focus-visible, .cfn-link:focus-visible, .cfn-cta:focus-visible, .cfn-burger:focus-visible, .cfn-pl:focus-visible {
    outline: 2px solid var(--cfn-accent); outline-offset: 2px;
}

.cfn-cta {
    margin-left: auto; flex: 0 0 auto;
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--cfn-accent); color: #fff; text-decoration: none;
    font-family: 'Barlow Condensed', sans-serif; font-weight: 700; font-size: 16px;
    letter-spacing: 0.08em; text-transform: uppercase;
    padding: 12px 20px; border-radius: 8px; transition: background .15s, transform .15s;
}
.cfn-cta:hover { background: var(--cfn-accent-hover); transform: translateY(-1px); }
.cfn-cta-mobile { display: none; }

/* Mega panels (desktop) */
.cfn-panel {
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--cfn-panel); border-bottom: 1px solid var(--cfn-line);
    box-shadow: 0 24px 48px rgba(2, 6, 23, 0.55);
    opacity: 0; visibility: hidden; transform: translateY(-6px);
    transition: opacity .16s ease, transform .16s ease, visibility 0s linear .16s;
}
.cfn-panel.is-open { opacity: 1; visibility: visible; transform: none; transition: opacity .16s ease, transform .16s ease; }
.cfn-panel-inner { max-width: 1240px; margin: 0 auto; padding: 28px 24px 22px; display: grid; gap: 28px; }
.cfn-panel-inner.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cfn-panel-inner.cols-2 { grid-template-columns: 1.3fr 1fr; }
.cfn-col-h {
    font-family: 'IBM Plex Mono', monospace; font-size: 11.52px; letter-spacing: 0.14em;
    text-transform: uppercase; color: var(--cfn-muted); margin: 0 0 10px; padding-bottom: 8px; border-bottom: 1px solid var(--cfn-line);
}
.cfn-pl {
    display: grid; grid-template-columns: 44px 1fr; gap: 2px 12px; align-items: center;
    text-decoration: none; color: var(--cfn-text); padding: 9px 10px; margin: 0 -10px; border-radius: 10px;
    transition: background .15s;
}
.cfn-pl:hover { background: rgba(255,255,255,0.05); }
.cfn-pl[aria-current="page"] { background: rgba(249,115,22,0.10); }
.cfn-pl-ic {
    grid-row: span 2; width: 44px; height: 44px; border-radius: 10px; background: #EFEEEA;
    display: grid; place-items: center; overflow: hidden;
}
.cfn-pl-ic img { width: 40px; height: 40px; object-fit: contain; }
.cfn-pl-ic.temp {
    background: rgba(249,115,22,0.12); color: var(--cfn-accent);
    font-family: 'IBM Plex Mono', monospace; font-size: 9.92px; font-weight: 600; text-align: center; line-height: 1.1; padding: 2px;
}
.cfn-pl-name { font-weight: 700; font-size: 16px; color: #fff; line-height: 1.2; }
.cfn-pl-desc { font-size: 13.76px; color: var(--cfn-muted); line-height: 1.3; }
.cfn-pl.no-ic { grid-template-columns: 1fr; }
.cfn-pl.no-ic .cfn-pl-ic { display: none; }
.cfn-sub { display: flex; flex-wrap: wrap; gap: 6px 14px; padding: 0 0 6px 56px; margin-top: -2px; }
.cfn-sub a { color: var(--cfn-muted); font-size: 13.76px; text-decoration: none; border-bottom: 1px dotted rgba(148,163,184,.5); }
.cfn-sub a:hover { color: #fff; }
.cfn-panel-foot {
    grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 24px;
    border-top: 1px solid var(--cfn-line); padding-top: 16px; margin-top: 2px;
}
.cfn-panel-foot a { color: var(--cfn-accent); font-weight: 700; text-decoration: none; font-family: 'Barlow Condensed', sans-serif; letter-spacing: .06em; text-transform: uppercase; }
.cfn-panel-foot a:hover { text-decoration: underline; }
.cfn-panel-foot span { color: var(--cfn-muted); font-size: 13.76px; font-family: 'IBM Plex Mono', monospace; }
.cfn-feature {
    background: linear-gradient(160deg, #1b2747, #121b31); border: 1px solid var(--cfn-line); border-radius: 14px; padding: 18px;
    display: flex; flex-direction: column; gap: 8px; text-decoration: none; color: var(--cfn-text);
}
.cfn-feature b { font-family: 'Archivo Black', sans-serif; font-weight: 400; text-transform: uppercase; color: #fff; font-size: 16.8px; letter-spacing: -.01em; }
.cfn-feature span { color: var(--cfn-muted); font-size: 14.4px; line-height: 1.4; }
.cfn-feature em { font-style: normal; color: var(--cfn-accent); font-weight: 700; font-family: 'Barlow Condensed', sans-serif; letter-spacing: .06em; text-transform: uppercase; margin-top: auto; }
.cfn-feature:hover { border-color: var(--cfn-accent); }

.cfn-burger { display: none; margin-left: auto; width: 44px; height: 44px; background: none; border: 1px solid var(--cfn-line); border-radius: 10px; cursor: pointer; padding: 11px 10px; flex-direction: column; justify-content: space-between; }
.cfn-burger span { display: block; height: 2px; background: #fff; border-radius: 2px; transition: transform .2s, opacity .2s; }
.cfn-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.cfn-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.cfn-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- Mobile / tablet ---------- */
@media (max-width: 1000px) {
    /* backdrop-filter would make the header the containing block for the fixed menu panel */
    .cfn { -webkit-backdrop-filter: none; backdrop-filter: none; background: var(--cfn-bg); }
    .cfn-bar { height: 64px; padding: 0 16px; gap: 12px; }
    .cfn-logo img { width: 44px; }
    .cfn-name { font-size: 17.92px; }
    .cfn-tag { font-size: 9.6px; }
    .cfn-burger { display: flex; }
    .cfn-bar > .cfn-cta { padding: 10px 14px; font-size: 14.4px; margin-left: auto; }
    .cfn-bar > .cfn-cta + .cfn-burger { margin-left: 0; }
    .cfn-menu {
        position: fixed; left: 0; right: 0; top: 64px; bottom: 0;
        background: var(--cfn-bg); border-top: 1px solid var(--cfn-line);
        flex-direction: column; align-items: stretch; overflow-y: auto; -webkit-overflow-scrolling: touch;
        padding: 8px 16px 104px; display: none; /* bottom space clears the chat bubble */
    }
    .cfn.is-menu-open .cfn-menu { display: flex; }
    .cfn-list { flex-direction: column; align-items: stretch; gap: 0; }
    .cfn-item { border-bottom: 1px solid var(--cfn-line); }
    .cfn-trigger, .cfn-link { width: 100%; justify-content: space-between; font-size: 18.4px; padding: 18px 4px; border-radius: 0; }
    .cfn-trigger:hover, .cfn-link:hover, .cfn-trigger[aria-expanded="true"] { background: none; }
    .cfn-panel {
        position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; background: none;
        display: none; transition: none;
    }
    .cfn-panel.is-open { display: block; }
    .cfn-panel-inner, .cfn-panel-inner.cols-3, .cfn-panel-inner.cols-2 { grid-template-columns: 1fr; padding: 0 0 16px; gap: 18px; }
    .cfn-feature { display: none; }
    .cfn-cta-mobile { display: flex; justify-content: center; margin: 20px 0 0; padding: 16px; font-size: 17.6px; }
    body.cfn-lock { overflow: hidden; }
}
@media (max-width: 420px) {
    .cfn-tag { display: none; }
    .cfn-bar > .cfn-cta { padding: 9px 11px; font-size: 13.12px; letter-spacing: .05em; }
}

/* ---------- Footer ---------- */
.cff {
    background: #0b1222; color: var(--cfn-text); border-top: 1px solid var(--cfn-line);
    text-align: left; margin: 0; padding: 0;
}
.cff a { color: var(--cfn-text); text-decoration: none; }
.cff a:hover { color: var(--cfn-accent); }
.cff-inner { max-width: 1240px; margin: 0 auto; padding: 56px 24px 32px; display: grid; grid-template-columns: 1.2fr 2.8fr; gap: 48px; }
.cff-brand p { color: var(--cfn-muted); font-size: 15.2px; line-height: 1.55; margin: 16px 0 18px; max-width: 30ch; }
.cff-brand .cff-mail { display: inline-block; font-family: 'IBM Plex Mono', monospace; font-size: 13.6px; color: var(--cfn-accent); margin-bottom: 18px; }
.cff-brand .cfn-cta { margin-left: 0; }
.cff-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.cff-h { font-family: 'IBM Plex Mono', monospace; font-size: 11.52px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--cfn-muted); margin: 0 0 14px; }
.cff-cols ul { list-style: none; margin: 0; padding: 0; }
.cff-cols li { margin: 0 0 10px; padding: 0; list-style: none; }
.cff-cols li a { font-size: 15.2px; }
.cff-bottom {
    max-width: 1240px; margin: 0 auto; padding: 18px 24px 28px; border-top: 1px solid var(--cfn-line);
    display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; color: var(--cfn-muted); font-size: 13.6px;
}
.cff-bottom nav, .cff-bottom .cff-legal { display: flex; gap: 18px; position: static; background: none; border: 0; padding: 0; height: auto; }
.cff-bottom a { color: var(--cfn-muted); }
@media (max-width: 900px) {
    .cff-inner { grid-template-columns: 1fr; gap: 36px; padding: 44px 16px 24px; }
    .cff-cols { grid-template-columns: repeat(2, 1fr); }
    .cff-bottom { padding: 16px 16px 96px; }
}

@media (prefers-reduced-motion: reduce) {
    .cfn *, .cff * { transition: none !important; }
}

@media print {
    .cfn, .cff, .cfn-skip { display: none !important; }
}