/* redcyfer.com, panel look (2026-10). The public site is drawn like the admin and customer panels:
   a rail of sections on the left, one working surface on the right, panels, facts strips and status pills.
   Every color is a token; dark mode redefines tokens only. */
:root{
  --bg:#eef0f3; --surface:#ffffff; --sunk:#e4e7ec; --ink:#141a24; --muted:#5b6575; --line:#d3d8e0;
  --brand:#b3142e; --brand-ink:#ffffff; --link:#1f5fae;
  --rail:#ffffff; --rail-ink:#141a24; --rail-muted:#5b6575; --rail-hover:#e4e7ec; --mark:#141a24; --rail-line:#d3d8e0;
  --ok:#18794e; --ok-bg:#dff3e8; --warn:#8a5a00; --warn-bg:#fbedc8; --bad:#b3142e; --bad-bg:#fbdfe3; --info:#1f5fae; --info-bg:#dde9f8;
  --display:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif; --mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --rail-w:244px;
}
/* The public site is always light (owner's call, 2026-10-03). The panels keep their own dark mode. */
:root{color-scheme:light}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--display);font-size:16px;line-height:1.55}
img,video{max-width:100%;height:auto}
a{color:var(--link)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
[hidden]{display:none!important}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--surface);color:var(--ink);padding:8px 12px;z-index:20}
.skip-link:focus{left:8px;top:8px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* ---------- frame ---------- */
.app{display:grid;grid-template-columns:var(--rail-w) minmax(0,1fr);min-height:100vh}
.rail{background:var(--rail);color:var(--rail-ink);border-right:1px solid var(--rail-line);padding:20px 14px;display:flex;flex-direction:column;gap:16px;position:sticky;top:0;align-self:start;height:100vh;overflow:auto}
.mark{font-weight:800;font-stretch:118%;font-size:20px;color:var(--mark);padding:0 8px;text-decoration:none;display:block}
.mark b{color:var(--brand)}
.mark small{display:block;font-family:var(--mono);font-weight:400;font-size:11px;color:var(--rail-muted);letter-spacing:.08em;text-transform:uppercase;margin-top:2px}
.rail-nav{display:flex;flex-direction:column;gap:2px}
.rail-nav h2{margin:12px 8px 4px;font-family:var(--mono);font-size:10.5px;font-weight:400;letter-spacing:.12em;text-transform:uppercase;color:var(--rail-muted)}
.rail-nav a{display:block;padding:8px 10px;border-radius:6px;font-weight:500;font-size:15px;color:var(--rail-ink);text-decoration:none}
.rail-nav a:hover{background:var(--rail-hover)}
.rail-nav a[aria-current="page"]{background:var(--brand);color:var(--brand-ink);font-weight:700}
.rail-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding:0 8px}
.rail-foot small{color:var(--rail-muted);font-size:11px;display:block;letter-spacing:.08em;text-transform:uppercase;font-family:var(--mono)}
.rail-foot .tel{font-family:var(--mono);font-size:14px;color:var(--rail-ink)}
.rail-foot .btn{font-size:14px;padding:7px 12px;text-align:center;background:transparent;color:var(--rail-ink);border-color:var(--rail-line)}
.rail-toggle{display:none;font:inherit;font-weight:600;font-size:14px;cursor:pointer;border:1px solid var(--rail-line);background:transparent;color:var(--rail-ink);padding:6px 12px;border-radius:6px}
main{padding-block:24px 40px;padding-inline:clamp(16px,3vw,38px);min-width:0;max-width:1180px;display:flex;flex-direction:column;gap:20px}
main:focus{outline:none}
.site-foot{color:var(--muted);font-size:13.5px;border-top:1px solid var(--line);padding-top:16px;margin-top:20px;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}
.site-foot a{color:var(--muted)}
.site-foot nav{display:flex;flex-wrap:wrap;gap:6px 16px}

/* ---------- surface ---------- */
.top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:12px 20px}
h1{font-size:clamp(28px,4vw,44px);font-weight:800;font-stretch:112%;margin:0;letter-spacing:-.015em;line-height:1.08;text-wrap:balance;max-width:22ch}
.sub{color:var(--muted);margin:6px 0 0;max-width:62ch;font-size:17px}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 6px}
.eyebrow a{color:inherit}
h2{font-size:13px;font-family:var(--mono);font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0}
h3{font-size:18px;font-weight:700;margin:0}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:18px;display:flex;flex-direction:column;gap:12px;min-width:0}
.panel p{margin:0}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.cols>.panel>.row:last-child{margin-top:auto}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden;margin:0}
.fact{background:var(--surface);padding:14px 16px}
.fact dt{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.fact dd{margin:4px 0 0;font-size:24px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.2}
.fact dd small{font-size:13px;font-weight:400;color:var(--muted);display:block;margin-top:2px}
.list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.list li{display:flex;gap:12px;align-items:flex-start;justify-content:space-between;padding:10px 0;border-top:1px solid var(--line)}
.list li:first-child{border-top:0;padding-top:0}
.list li:last-child{padding-bottom:0}
.list p{margin:0}
.meta{color:var(--muted);font-size:14px;margin:0}
.pill{display:inline-block;font-family:var(--mono);font-size:11.5px;font-weight:600;padding:2px 8px;border-radius:99px;white-space:nowrap}
.ok{color:var(--ok);background:var(--ok-bg)}.warn{color:var(--warn);background:var(--warn-bg)}.info{color:var(--info);background:var(--info-bg)}.plain{color:var(--muted);background:var(--sunk)}
.btn{font:inherit;font-size:15px;font-weight:600;cursor:pointer;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:9px 16px;border-radius:6px;text-decoration:none;display:inline-block}
.btn:hover{border-color:var(--ink)}
.btn.go,.btn-primary{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.btn[disabled]{opacity:.55;cursor:default}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.between{justify-content:space-between}
.svc p{color:var(--muted)}
.kv{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px 20px;margin:0}
.kv dt{font-family:var(--mono);font-size:11px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}
.kv dd{margin:2px 0 0;overflow-wrap:anywhere}
.big{font-family:var(--mono);font-size:20px;font-weight:600;font-variant-numeric:tabular-nums}
.tel{white-space:nowrap;font-variant-numeric:tabular-nums}
.scroll{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:15px}
th{font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);text-align:left;padding:6px 10px;border-bottom:1px solid var(--line)}
td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}

/* ---------- forms ---------- */
.field{display:flex;flex-direction:column;gap:4px;font-size:14px;color:var(--muted);flex:1;min-width:200px}
.field label{color:var(--muted)}
input,textarea,select{font:inherit;padding:9px 10px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--ink);min-width:0;max-width:100%}
textarea{resize:vertical}
.contact-form{display:flex;flex-direction:column;gap:12px}
.cf-status{margin:0;font-size:14px;color:var(--muted)}
.cf-status.ok,.form-ok{color:var(--ok);background:none}
.cf-status.err,.form-err{color:var(--bad)}

/* ---------- long-form text: essays, legal pages, case studies, the Linux page ---------- */
.prose{max-width:72ch;display:flex;flex-direction:column;gap:14px}
.prose>*{margin:0}
.prose h2{font-family:var(--display);font-size:22px;font-weight:700;letter-spacing:0;text-transform:none;color:var(--ink);margin-top:14px}
.prose h3{font-size:18px;margin-top:8px}
.prose ul,.prose ol{padding-left:22px;display:flex;flex-direction:column;gap:6px}
.prose li>ul,.prose li>ol{margin-top:6px}
.prose blockquote{border-left:3px solid var(--line);padding-left:14px;color:var(--muted)}
.prose code,code{font-family:var(--mono);font-size:.9em;background:var(--sunk);padding:.05em .35em;border-radius:4px}
.prose pre,pre{background:var(--sunk);border:1px solid var(--line);border-radius:8px;padding:12px 14px;overflow-x:auto;font-family:var(--mono);font-size:14px}
.prose pre code,pre code{background:none;padding:0}
.prose hr{border:0;border-top:1px solid var(--line);width:100%}
.prose table{font-size:14.5px}
kbd{font-family:var(--mono);font-size:.85em;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:.05em .4em;background:var(--sunk)}
figure.shot{margin:0;display:flex;flex-direction:column;gap:6px}
figure.shot img{width:100%;display:block;border-radius:8px;border:1px solid var(--line);background:var(--sunk)}
figure.shot figcaption{color:var(--muted);font-size:14px}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.post-meta{color:var(--muted);font-size:14px;margin:0}
.post-tag{font-family:var(--mono);font-size:12px}
.posts{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.posts li{padding:14px 0;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:4px}
.posts li:first-child{border-top:0;padding-top:0}
.posts a{font-weight:700;font-size:18px;color:var(--ink);text-decoration:none}
.posts a:hover{text-decoration:underline}

/* ---------- phone ---------- */
@media (max-width:860px){
  .app{grid-template-columns:minmax(0,1fr)}
  .rail{position:static;height:auto;padding:12px 16px;gap:10px;flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:space-between}
  .rail-toggle{display:inline-block}
  .rail-nav,.rail-foot{display:none;flex-basis:100%}
  .rail.open .rail-nav,.rail.open .rail-foot{display:flex}
  .rail-foot{margin-top:6px;padding-bottom:6px}
}
@media (prefers-reduced-motion:no-preference){ .btn,.rail-nav a{transition:background-color .12s,border-color .12s} }

/* ---------- v2 (after the usability study): the middle reads like a page, not an account ----------
   One reading column, real sentence-case headings, boxes only for things. Status-style pills are gone from
   marketing pages; .pill stays for the few places it states a plain fact ("Included", "Optional"). */
h2{font-family:var(--display);font-size:clamp(21px,2.4vw,26px);font-weight:800;font-stretch:108%;letter-spacing:-.01em;text-transform:none;color:var(--ink);line-height:1.2;margin:0;text-wrap:balance}
.label{font-size:12px;font-family:var(--mono);font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0}
.panel>h2{font-size:19px;font-stretch:100%}
.sec{display:flex;flex-direction:column;gap:12px;max-width:74ch}
.sec.wide{max-width:none}
.sec p{margin:0}
.lead{font-size:18px;color:var(--ink);max-width:62ch;margin:0}
main>.sec+.sec,main>.sec+.cards,main>.cards+.sec,main>.sec+.price,main>.price+.sec{margin-top:10px}
.checks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.checks li{padding-left:26px;position:relative}
.checks li::before{content:"";position:absolute;left:2px;top:.42em;width:12px;height:7px;border-left:2.5px solid var(--ok);border-bottom:2.5px solid var(--ok);transform:rotate(-45deg)}
.checks li small{display:block;color:var(--muted);font-size:14px}
.steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px;counter-reset:step}
.steps li{counter-increment:step;padding-left:44px;position:relative}
.steps li::before{content:counter(step);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;background:var(--brand);color:var(--brand-ink);font-weight:700;display:grid;place-items:center;font-size:15px}
.steps li strong{display:block}
.steps li span{color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:18px;display:flex;flex-direction:column;gap:8px;min-width:0;text-decoration:none;color:var(--ink)}
a.card:hover{border-color:var(--ink)}
.card h3{font-size:19px}
.card p{margin:0;color:var(--muted)}
.card .from{font-weight:700;color:var(--ink)}
.card .more{margin-top:auto;font-weight:700;color:var(--brand)}
.card img{border-radius:6px;border:1px solid var(--line);display:block;width:100%}
.example{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:0;overflow:hidden;max-width:560px}
.example .tag{display:block;background:var(--sunk);color:var(--muted);border-bottom:1px solid var(--line);font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;padding:7px 16px}
.example .list{padding:14px 16px}
.price{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:18px;display:flex;flex-direction:column;gap:12px;max-width:74ch}
.price .amount{font-size:34px;font-weight:800;font-stretch:108%;line-height:1;font-variant-numeric:tabular-nums}
.price .amount small{font-size:16px;font-weight:500;color:var(--muted)}
.price p{margin:0}
.price-table td:last-child,.price-table th:last-child{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums;font-weight:700}
.cta{background:var(--surface);color:var(--ink);border:1px solid var(--line);border-left:5px solid var(--brand);border-radius:10px;padding:22px;display:flex;flex-wrap:wrap;gap:14px 24px;align-items:center;justify-content:space-between;margin-top:10px}
.cta h2{color:var(--ink)}
.cta p{margin:4px 0 0;color:var(--muted)}
.cta .tel{color:var(--ink);font-family:var(--mono);font-weight:600}
.cta a.tel{text-decoration:none}
.callout{border-left:4px solid var(--brand);background:var(--surface);border-radius:0 8px 8px 0;padding:16px 18px;display:flex;flex-direction:column;gap:6px;max-width:74ch}
.callout .big{font-size:26px}
.callout a.big{color:var(--ink);text-decoration:none}
details{max-width:74ch;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:12px 16px}
details summary{cursor:pointer;font-weight:700}
details[open] summary{margin-bottom:10px}
.rail-call{display:none}
@media (max-width:860px){ .rail-call{display:inline-block;color:var(--rail-ink);font-family:var(--mono);font-size:13px;text-decoration:none;border:1px solid var(--rail-line);border-radius:6px;padding:6px 10px} .rail{gap:8px} .mark small{display:none} }
@media (max-width:860px){ .rail{flex-wrap:wrap;justify-content:flex-start} .mark{font-size:17px;padding:0} .rail-call{margin-left:auto;font-size:12px;padding:6px 8px} .rail-toggle{padding:6px 10px} }