/* Single dark theme (Pacific navy) for every visitor.
   Layout: sticky header, split hero (thesis left, live health-check terminal right), service grid with mono category codes, navy band for guides, single-column views for Services / About / Contact. */
:root{
  --paper:#0a1029; --surface:#111a3d; --ink:#e8ecfa; --muted:#9ca7c9; --line:#243062;
  --navy:#9fb2ff; --accent:#3fcac6; --accent-ink:#06202a; --marker:#ffd84a; --hl:rgba(255,216,74,.42);
  --band:#121c4a; --band-ink:#eef2ff; --band-muted:#a9b5e3; --logo:#ffffff;
  --term:#060a1f; --term-ink:#d4dcf4; --term-dim:#7380ad; --ok:#39c98c; --warn:#ffcc4d; --chip:#18234f;
  --f-display:"Archivo","Arial Narrow",system-ui,sans-serif;
  --f-body:"Source Sans 3","Segoe UI",system-ui,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Consolas,monospace;
  --wrap:1180px; --r:10px;
  color-scheme:dark;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.6}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
h1,h2,h3{font-family:var(--f-display);font-stretch:112%;line-height:1.08;text-wrap:balance;margin:0;letter-spacing:-.01em}
h1{font-size:clamp(2.3rem,5.4vw,4.1rem);font-weight:800}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem);font-weight:750}
h3{font-size:1.2rem;font-weight:700;font-stretch:105%}
p{margin:0}
a{color:inherit}
mark{background:linear-gradient(transparent 60%,var(--hl) 60%);color:inherit;padding:0 .08em}
.eyebrow{font-family:var(--f-mono);font-size:.76rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-weight:600}
.lead{font-size:1.15rem;color:var(--muted);max-width:62ch}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}

/* header */
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:20px;padding-block:12px;flex-wrap:wrap}
.logo{color:var(--logo);display:inline-flex;text-decoration:none}
.logo img{height:40px;width:auto;display:block}
nav.main{display:flex;gap:4px;margin-left:auto}
nav.main a{font-weight:600;text-decoration:none;padding:8px 12px;border-radius:8px;color:var(--muted);white-space:nowrap}
nav.main a:hover{color:var(--ink);background:var(--chip)}
nav.main a[aria-current="page"]{color:var(--ink);background:var(--chip)}
.langs{display:flex;border:1px solid var(--line);border-radius:999px;padding:3px;gap:2px}
.langs button{font:600 .74rem var(--f-mono);letter-spacing:.06em;border:0;background:transparent;color:var(--muted);padding:6px 9px;border-radius:999px;cursor:pointer}
.langs button[aria-pressed="true"]{background:var(--navy);color:var(--paper)}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;text-decoration:none;padding:12px 20px;border-radius:999px;border:2px solid transparent;cursor:pointer;font-size:1rem;font-family:var(--f-body);transition:transform .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--accent);color:var(--accent-ink)}
.btn.ghost{border-color:var(--line);color:var(--ink);background:var(--surface)}
.btn.small{padding:8px 16px;font-size:.92rem}
@media (max-width:900px){
  .bar{gap:10px}
  .bar .btn.small{display:none}
  .langs{margin-left:auto}
  nav.main{order:3;width:100%;margin-left:0;overflow-x:auto;padding-bottom:2px}
}

/* views */
main section[data-view]{padding-block:0}
.block{padding-block:clamp(48px,7vw,88px)}
.block + .block{padding-top:0}
.head{display:grid;gap:14px;margin-bottom:36px}

/* hero */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(28px,4vw,56px);align-items:center;padding-block:clamp(40px,6vw,80px)}
.hero > *{min-width:0}
.hero .copy{display:grid;gap:22px}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.facts{display:flex;flex-wrap:wrap;gap:8px 22px;padding:0;margin:6px 0 0;list-style:none;color:var(--muted);font-size:.95rem}
.facts li{display:flex;align-items:center;gap:8px}
.facts li::before{content:"";width:7px;height:7px;border-radius:2px;background:var(--accent)}
.term{background:var(--term);color:var(--term-ink);border-radius:14px;font-family:var(--f-mono);font-size:.8rem;line-height:1.75;box-shadow:0 24px 60px -24px rgba(10,20,60,.55);overflow:hidden;border:1px solid rgba(255,255,255,.06)}
.term .tbar{display:flex;align-items:center;gap:7px;padding:11px 14px;border-bottom:1px solid rgba(255,255,255,.08);color:var(--term-dim);font-size:.72rem}
.term .tbar i{width:10px;height:10px;border-radius:50%;background:#2a3566;display:block}
.term .tbar span{margin-left:8px}
.term pre{margin:0;padding:16px 18px 18px;overflow-x:auto;font:inherit;white-space:pre}
.t-ok{color:var(--ok)} .t-warn{color:var(--warn)} .t-dim{color:var(--term-dim)} .t-cmd{color:#fff}
.cursor{display:inline-block;width:8px;height:1.05em;background:var(--term-ink);vertical-align:-2px;animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
@media (max-width:860px){.hero{grid-template-columns:1fr}}

/* stack strip */
.stack{border-block:1px solid var(--line);background:var(--surface)}
.stack .wrap{display:flex;align-items:center;gap:18px;padding-block:18px;flex-wrap:wrap}
.stack .label{font-size:.9rem;color:var(--muted);font-weight:600;margin-right:6px}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
.chips li{font:500 .8rem var(--f-mono);padding:5px 10px;border-radius:6px;background:var(--chip);color:var(--ink)}

/* service cards */
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.card{background:var(--surface);padding:26px 24px 28px;display:grid;gap:10px;align-content:start;text-decoration:none;color:inherit;transition:background .15s}
.card:hover{background:color-mix(in srgb,var(--surface) 92%,var(--accent))}
.code{font:600 .72rem var(--f-mono);letter-spacing:.08em;color:var(--accent);border:1px solid currentColor;border-radius:4px;padding:2px 7px;justify-self:start}
.card p{color:var(--muted);font-size:.98rem}
@media (max-width:960px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.grid{grid-template-columns:1fr}}
.more{margin-top:22px}

/* engagement */
.eng{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.plan{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px 24px;display:grid;gap:14px;align-content:start}
.plan.featured{border:2px solid var(--accent)}
.plan .tag{font:600 .72rem var(--f-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.plan p{color:var(--muted);font-size:.98rem}
.ticks{list-style:none;margin:0;padding:0;display:grid;gap:8px;font-size:.95rem}
.ticks li{display:grid;grid-template-columns:18px 1fr;gap:8px}
.ticks li::before{content:"";width:12px;height:7px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg) translate(2px,4px)}
@media (max-width:860px){.eng{grid-template-columns:1fr}}

/* process */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;list-style:none;margin:0;padding:0;counter-reset:s}
.steps li{display:grid;gap:8px;padding-top:18px;border-top:3px solid var(--navy);counter-increment:s}
.steps li::before{content:counter(s,decimal-leading-zero);font:600 .8rem var(--f-mono);color:var(--accent)}
.steps p{color:var(--muted);font-size:.96rem}
@media (max-width:860px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:480px){.steps{grid-template-columns:1fr}}

/* guides band */
.band{background:var(--band);color:var(--band-ink)}
.band .inner{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,5vw,64px);align-items:start}
.band .inner > *{min-width:0}
.band .eyebrow{color:var(--marker)}
.band .lead{color:var(--band-muted)}
.books{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.books li{display:flex;justify-content:space-between;gap:16px;align-items:baseline;padding:14px 16px;border:1px solid rgba(255,255,255,.14);border-radius:8px;flex-wrap:wrap}
.books b{font-weight:600}
.books small{font:500 .7rem var(--f-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--marker);white-space:nowrap}
.band .btn.ghost{background:transparent;color:var(--band-ink);border-color:rgba(255,255,255,.3)}
@media (max-width:860px){.band .inner{grid-template-columns:1fr}}

/* cta */
.cta{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;padding:clamp(28px,4vw,44px);border:1px solid var(--line);border-radius:14px;background:var(--surface)}
.cta > div{display:grid;gap:8px;max-width:60ch;min-width:0}
.cta p{color:var(--muted)}

/* services detail */
.svc-list{display:grid;border-top:1px solid var(--line)}
.svc{display:grid;grid-template-columns:120px minmax(0,1fr) minmax(0,1.2fr);gap:24px;padding-block:30px;border-bottom:1px solid var(--line);scroll-margin-top:110px}
.svc .ttl{display:grid;gap:8px}
.svc .ttl p{color:var(--muted)}
.svc ul{margin:0;padding-left:1.1em;display:grid;gap:6px;font-size:.98rem}
.svc ul li::marker{color:var(--accent)}
@media (max-width:860px){.svc{grid-template-columns:1fr;gap:12px}}

/* about */
.about{display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(28px,5vw,64px);align-items:start}
.about > *{min-width:0}
.prose{display:grid;gap:18px;max-width:64ch}
.prose p:first-child{font-size:1.18rem}
.side{display:grid;gap:22px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px;display:grid;gap:14px}
.principles{display:grid;gap:14px;list-style:none;margin:0;padding:0}
.principles b{display:block;font-family:var(--f-display);font-stretch:105%}
.principles span{color:var(--muted);font-size:.95rem}
dl.co{margin:0;display:grid;gap:0}
dl.co div{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:12px;padding-block:9px;border-top:1px solid var(--line);font-size:.94rem}
dl.co div:first-child{border-top:0}
dl.co dt{color:var(--muted)}
dl.co dd{margin:0;font-weight:600;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.ph{background:var(--hl);padding:0 3px;border-radius:3px}
@media (max-width:860px){.about{grid-template-columns:1fr}}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.contact > *{min-width:0}
.mail{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.mail code{font:600 clamp(1rem,2.4vw,1.35rem) var(--f-mono);user-select:all;overflow-wrap:anywhere}
.note{color:var(--muted);font-size:.95rem}
@media (max-width:760px){.contact{grid-template-columns:1fr}}

footer{border-top:1px solid var(--line);margin-top:clamp(48px,7vw,88px)}
footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding-block:30px;color:var(--muted);font-size:.9rem}
footer .logo img{height:46px}
footer .meta{display:grid;gap:2px;text-align:right}
@media (max-width:600px){footer .meta{text-align:left}}
html,body{margin:0}
.langs a{font:600 .74rem var(--f-mono);letter-spacing:.06em;text-decoration:none;color:var(--muted);padding:6px 9px;border-radius:999px}
.langs a[aria-current="true"]{background:var(--navy);color:var(--paper)}
.h3{font-size:1.2rem;font-weight:700;font-stretch:105%}
.mail .val{font:600 clamp(1rem,2.4vw,1.35rem) var(--f-mono);text-decoration:none;overflow-wrap:anywhere}
.mail .val:hover{color:var(--accent)}
.svc ul{list-style:disc}