/* PactKeeper — shared header + footer ("site chrome"), the same on every page.
   Markup: src/scripts/site_chrome.py. Behaviour: site-chrome.js. Everything is namespaced (pk-*) so page styles cannot change it. */
:root{--pkc-bg:#0E0F11;--pkc-s200:#1F2024;--pkc-s300:#26272B;--pkc-border:#2A2B30;--pkc-text:#F2F2F3;--pkc-muted:#9B9CA3;--pkc-accent:#1E5EFF;--pkc-accent-h:#0047E0;--pkc-accent-t:#6EA8FF}
:root[data-theme="light"]{--pkc-bg:#F5F5F7;--pkc-s200:#F0F0F2;--pkc-s300:#E7E7EA;--pkc-border:#E3E3E7;--pkc-text:#111214;--pkc-muted:#5E5F66;--pkc-accent-t:#0047E0}
.pk-nav,.pk-mnav,.pk-foot{font-family:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.55;font-weight:400;letter-spacing:normal;-webkit-font-smoothing:antialiased;color:var(--pkc-text);box-sizing:border-box;text-align:left}
.pk-nav *,.pk-mnav *,.pk-foot *{box-sizing:border-box}
.pk-nav a,.pk-mnav a,.pk-foot a{text-decoration:none}
.pk-nav [hidden],.pk-mnav[hidden],.pk-foot [hidden]{display:none!important}
.pk-nav :focus-visible,.pk-mnav :focus-visible,.pk-foot :focus-visible{outline:2px solid var(--pkc-accent-t);outline-offset:2px;border-radius:4px}
.pk-wrap{max-width:1120px;margin:0 auto;padding-inline:24px}
@media (max-width:480px){.pk-wrap{padding-inline:16px}}

/* Header */
.pk-nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;margin:0;padding:0;max-width:none;width:auto;display:block;background:color-mix(in srgb,var(--pkc-bg) 85%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--pkc-border)}
.pk-nav .pk-wrap{display:flex;align-items:center;gap:24px;height:64px}
.pk-logo{display:flex;align-items:center;flex:none}
.pk-logo img{display:none;height:32px;width:auto}
.pk-logo .pk-lw-d{display:block}
:root[data-theme="light"] .pk-logo .pk-lw-d{display:none}
:root[data-theme="light"] .pk-logo .pk-lw-l{display:block}
.pk-links{display:flex;gap:24px;margin:0 0 0 16px;padding:0}
.pk-links a{color:var(--pkc-muted);font-size:14px;font-weight:500;white-space:nowrap}
.pk-links a:hover,.pk-links a[aria-current]{color:var(--pkc-text)}
.pk-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.pk-lang{display:inline-flex;padding:3px;gap:2px;border-radius:8px;background:var(--pkc-s200);border:1px solid var(--pkc-border)}
.pk-lang button{font-family:inherit;font-weight:600;font-size:12px;line-height:16px;color:var(--pkc-muted);background:transparent;border:0;margin:0;padding:5px 9px;border-radius:6px;cursor:pointer}
.pk-lang button[aria-pressed="true"]{background:var(--pkc-s300);color:var(--pkc-text)}
.pk-icon{width:40px;height:40px;border-radius:12px;border:1px solid var(--pkc-border);background:var(--pkc-s200);color:var(--pkc-text);display:inline-grid;place-items:center;cursor:pointer;margin:0;padding:0;flex:none}
.pk-icon:hover{background:var(--pkc-s300)}
.pk-icon svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.pk-theme .pk-moon{display:none}
:root[data-theme="light"] .pk-theme .pk-sun{display:none}
:root[data-theme="light"] .pk-theme .pk-moon{display:block}
.pk-btn{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 18px;border-radius:12px;border:0;font-family:inherit;font-weight:600;font-size:14px;line-height:20px;white-space:nowrap;background:var(--pkc-accent);color:#fff}
.pk-btn:hover{background:var(--pkc-accent-h);color:#fff}
.pk-burger{display:none;flex-direction:column;gap:4px}
.pk-burger span{display:block;width:16px;height:2px;border-radius:2px;background:currentColor;transition:transform .2s,opacity .2s}
.pk-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.pk-burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.pk-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.pk-mnav{position:fixed;left:0;right:0;top:calc(64px + env(safe-area-inset-top,0px));bottom:0;z-index:25;background:var(--pkc-bg);padding:16px 16px calc(24px + env(safe-area-inset-bottom,0px));display:grid;align-content:start;gap:20px;overflow-y:auto}
.pk-mnav nav{display:grid}
.pk-mnav nav a{color:var(--pkc-text);font-size:20px;font-weight:600;padding:14px 0;border-bottom:1px solid var(--pkc-border)}
.pk-mnav nav a[aria-current]{color:var(--pkc-accent-t)}
.pk-mrow{display:flex;gap:12px;align-items:center}
body.pk-menu-open{overflow:hidden}
@media (prefers-reduced-motion:reduce){.pk-burger span{transition:none}}
/* Three layouts: desktop ≥1181 full menu · 641–1180 section links in the burger, EN/UA + theme in the bar · phone ≤640 everything in the burger */
@media (min-width:1181px){.pk-mnav{display:none!important}}
@media (max-width:1180px){.pk-links{display:none}.pk-burger{display:inline-flex;align-items:center;justify-content:center}.pk-right{gap:8px}.pk-nav .pk-wrap{gap:16px}}
@media (min-width:641px) and (max-width:1180px){.pk-mrow{display:none}}
@media (max-width:640px){.pk-right>.pk-lang,.pk-right>.pk-theme{display:none}.pk-nav .pk-wrap{gap:12px}}
@media (max-width:420px){.pk-logo img{height:30px}.pk-btn{padding:0 12px;font-size:13px}}
@media (max-width:374px){.pk-logo img{height:27px}}
@media (max-width:340px){.pk-logo img{height:21px}.pk-btn{padding:0 8px;font-size:11.5px;letter-spacing:-.01em}.pk-nav .pk-wrap{gap:6px}.pk-right{gap:6px}}

/* Footer */
.pk-foot{display:block;margin:0;padding:32px 0;max-width:none;width:auto;border-top:1px solid var(--pkc-border);font-size:13px;color:var(--pkc-muted);background:none}
.pk-foot-in{display:grid;grid-template-columns:minmax(0,1fr);gap:24px}
.pk-follow{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;font-size:13.5px;padding-bottom:24px;border-bottom:1px solid var(--pkc-border)}
.pk-follow a{display:inline-flex;align-items:center;gap:6px;color:var(--pkc-muted)}
.pk-follow a:hover{color:var(--pkc-text)}
.pk-follow svg{width:16px;height:16px}
.pk-disc{margin:0 0 14px;max-width:760px;font-size:13px;line-height:1.55;color:var(--pkc-muted)}
.pk-foot nav{display:flex;flex-wrap:wrap;gap:8px 20px;margin:0;padding:0}
.pk-foot nav a,.pk-foot nav span{color:var(--pkc-muted);font-size:13px}
.pk-foot nav a:hover,.pk-foot nav a[aria-current]{color:var(--pkc-text)}
.pk-foot nav span{font-variant-numeric:tabular-nums}

/* B3b 2026-11-06: larger tap targets for footer links on phones (text size unchanged) */
@media (max-width:640px){.pk-foot a{display:inline-block;padding:7px 0}.pk-foot nav{row-gap:0}}