@import url("https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,600;12..96,700;12..96,800&family=Hanken+Grotesk:wght@400;500;600&family=Instrument+Serif:ital@1&family=JetBrains+Mono:wght@400;500&display=swap"); /* LongMem shared design system — single source of truth for tokens + the shared header. THEMES: dark is the default (no attribute). Light is opt-in via . /assets/header.js sets the attribute from localStorage('lm_theme') before paint and renders the toggle. Token layers: 1. Theme-independent: fonts, code-card bg. 2. Per-theme color tokens (canonical brand names + the --bg/--surface/--text/--accent aliases the older pages were authored against). Change colors HERE only. */ :root{ color-scheme:dark; /* fonts (theme-independent) */ --sans:'Hanken Grotesk',-apple-system,system-ui,sans-serif; --display:'Bricolage Grotesque',var(--sans); --serif:'Instrument Serif',Georgia,serif; --mono:'JetBrains Mono',ui-monospace,monospace; --code-bg:#141319; /* dark code cards in both themes — a brand constant */ /* ---- DARK theme (default) ---- */ /* RememberOS — Monochrome: ink + near-white, no chromatic accent (enterprise/minimal) */ --base:#0A0A0B; --base2:#151517; --ink:#ECECEE; --muted:#8A8A90; --faint:#56565C; --line:rgba(255,255,255,.11); --cobalt:#ECECEE; --cobalt-soft:rgba(255,255,255,.10); --green:#9aa0a6; --amber:#cfcfd4; --red:#f87171; --glass:rgba(255,255,255,.045); --surface:#151517; --surface2:#1E1E20; --nav-bg:rgba(10,10,11,.82); --on-cobalt:#0A0A0B; /* dark text on the near-white accent (buttons read white) */ /* aliases (resolve to whichever theme's tokens win) */ --bg:var(--base); --text:var(--ink); --accent:var(--cobalt); --accent2:var(--cobalt); --border:var(--line); } :root[data-theme="light"]{ color-scheme:light; /* RememberOS — Monochrome (light): near-white paper + near-black ink accent */ --base:#FAFAFB; --base2:#F0F0F2; --ink:#0A0A0B; --muted:#6A6A70; --faint:#9A9AA0; --line:rgba(10,10,11,.11); --cobalt:#16161A; --cobalt-soft:rgba(10,10,11,.06); --green:#52525a; --amber:#52525a; --red:#d23b3b; --glass:rgba(255,255,255,.62); --surface:#fff; --surface2:#F0F0F2; --nav-bg:rgba(250,250,251,.82); --on-cobalt:#fff; /* white on the near-black ink accent */ } *{margin:0;padding:0;box-sizing:border-box} html{scroll-behavior:smooth} body{font-family:var(--sans);background:var(--base);color:var(--ink);-webkit-font-smoothing:antialiased;transition:background .25s,color .25s} ::selection{background:var(--cobalt);color:var(--on-cobalt)} a{color:inherit} /* ============================ shared header ============================ */ .site-nav{position:sticky;top:0;z-index:100;width:100%;height:64px;padding:0 clamp(16px,4vw,56px); display:flex;align-items:center;gap:18px;flex-shrink:0; background:var(--nav-bg);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)} .site-nav .brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700; font-size:20px;letter-spacing:-.02em;text-decoration:none;color:var(--ink);flex-shrink:0} .site-nav .brand i{color:var(--cobalt);font-style:normal} .nav-menu{flex:1;display:flex;align-items:center;gap:18px;min-width:0} .site-nav .navlinks{display:flex;gap:24px;margin-inline:auto;flex-wrap:wrap;justify-content:center} .site-nav .navlinks a{font-size:13.5px;color:var(--muted);text-decoration:none;transition:color .2s;white-space:nowrap} .site-nav .navlinks a:hover,.site-nav .navlinks a.active{color:var(--ink)} .site-nav .navright{display:flex;align-items:center;gap:14px;flex-shrink:0} .site-nav .signin{font-size:13.5px;color:var(--muted);text-decoration:none} .site-nav .signin:hover{color:var(--ink)} .btn{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:var(--base); font-size:13.5px;font-weight:500;padding:10px 16px;border-radius:100px;text-decoration:none;border:0;cursor:pointer;transition:transform .25s,opacity .2s} .btn:hover{transform:translateY(-1px)} .btn.cobalt{background:var(--cobalt);color:var(--on-cobalt)} .btn .arr{transition:transform .25s}.btn:hover .arr{transform:translateX(3px)} /* DE/EN switch + theme toggle */ .lang-switch{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;font-family:var(--mono);font-size:11.5px} .lang-switch button{background:none;border:0;color:var(--muted);padding:5px 8px;cursor:pointer;font:inherit;transition:color .2s,background .2s} .lang-switch button:hover{color:var(--ink)} .lang-switch button.on{background:var(--cobalt);color:var(--on-cobalt)} .theme-toggle{display:inline-grid;place-items:center;width:32px;height:32px;border:1px solid var(--line); border-radius:8px;background:none;color:var(--muted);cursor:pointer;transition:color .2s,border-color .2s} .theme-toggle:hover{color:var(--ink);border-color:var(--muted)} .theme-toggle svg{width:16px;height:16px} .burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px} .burger span{width:22px;height:1.5px;background:var(--ink);display:block;transition:.2s} @media(max-width:920px){ /* mobile: only brand + burger in the bar; everything else in the dropdown */ .site-nav{flex-wrap:wrap;justify-content:space-between;gap:10px;padding:0 18px} .burger{display:flex} .nav-menu{display:none;order:3;flex:1 0 100%;flex-direction:column;align-items:stretch;gap:20px;padding:6px 0 20px} .site-nav.open{height:auto} .site-nav.open .nav-menu{display:flex} .nav-menu .navlinks{flex-direction:column;gap:18px;margin:0} .nav-menu .navlinks a{font-size:1rem} /* lower controls: consistent full-width rows */ .nav-menu .navright{flex-direction:column;align-items:stretch;gap:12px;padding-top:18px;border-top:1px solid var(--line)} .nav-menu .navright .lang-switch{width:100%} .nav-menu .navright .lang-switch button{flex:1;padding:11px 0;font-size:.95rem} .nav-menu .navright .theme-toggle{display:flex;align-items:center;justify-content:flex-start;width:100%;height:auto; padding:11px 14px;gap:10px;border-radius:9px;color:var(--text);font-family:var(--sans);font-size:1rem} .nav-menu .navright .theme-toggle::after{content:"Theme"} .nav-menu .navright .signin{text-align:center;padding:12px;border:1px solid var(--line);border-radius:100px;font-size:1rem;color:var(--text)} .nav-menu .navright .signin:hover{border-color:var(--muted)} .nav-menu .navright .btn{justify-content:center;padding:13px;font-size:1rem} } /* ============================ shared footer ============================ */ .site-footer{border-top:1px solid var(--line);padding:34px clamp(16px,5vw,56px); display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px; font-family:var(--mono);font-size:11.5px;color:var(--faint)} .site-footer a{color:var(--faint);text-decoration:none} .site-footer a:hover{color:var(--muted)}