/* Layout: hoja de especificaciones de ingeniería. Columna de lectura amplia, señal animada en el hero, datos en monoespaciada. */
:root{
  --bg:#F4F6F7; --surface:#FFFFFF; --ink:#0E1A22; --muted:#53636D; --line:#D4DCE0;
  --accent:#B45309; --accent-soft:#FEF4EA; --signal:#1F6F8B;
  --amber:#F2A33A; --on-amber:#1A0F04;
  --nav-h:68px;
  --f-display:"Familjen Grotesk","Helvetica Neue",Arial,sans-serif;
  --f-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --wrap:1120px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0C141A; --surface:#121D25; --ink:#E5ECEF; --muted:#94A4AD; --line:#233340;
  --accent:#F2A33A; --accent-soft:#2B2116; --signal:#5FB3CF; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0C141A; --surface:#121D25; --ink:#E5ECEF; --muted:#94A4AD; --line:#233340;
  --accent:#F2A33A; --accent-soft:#2B2116; --signal:#5FB3CF; color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px)}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.6;margin:0;-webkit-font-smoothing:antialiased}
a{color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.letter a:focus-visible,.letter button:focus-visible,.letter input:focus-visible{outline-color:var(--amber)}
main:focus{outline:none}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:16px;top:-100px;z-index:20;background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:8px;font-weight:600;text-decoration:none}
.skip:focus{top:12px}
.kicker{margin-bottom:12px}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
.mono{font-family:var(--f-mono);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
h1,h2,h3{font-family:var(--f-display);text-wrap:balance;margin:0;line-height:1.08;letter-spacing:-.015em}
h2{font-size:clamp(1.9rem,3.6vw,2.7rem);font-weight:700}
h3{font-size:1.3rem;font-weight:600;line-height:1.2}
p{margin:0}

/* Nav */
header.nav{position:sticky;top:0;z-index:10;padding-top:env(safe-area-inset-top,0px);background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:var(--nav-h)}
.brand{font-family:var(--f-display);font-weight:700;font-size:1.15rem;text-decoration:none;letter-spacing:-.01em;white-space:nowrap}
.brand span{color:var(--accent)}
.nav ul{display:flex;gap:10px;list-style:none;margin:0;padding:0;font-size:.95rem}
.nav ul a{display:block;padding:8px 8px;text-decoration:none;color:var(--muted);transition:color .15s ease}
.nav ul a:hover,.nav ul a[aria-current="true"]{color:var(--ink)}
.nav ul a[aria-current="true"]{text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:8px}
.nav-end{display:flex;align-items:center;gap:8px}
.menu-btn{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--ink);cursor:pointer}
.menu-btn svg{width:20px;height:20px}
.menu-btn .i-close,.menu-btn[aria-expanded="true"] .i-open{display:none}
.menu-btn[aria-expanded="true"] .i-close{display:block}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;font-family:var(--f-body);font-weight:600;font-size:.98rem;text-decoration:none;border-radius:999px;padding:12px 22px;border:1px solid transparent;cursor:pointer;transition:transform .15s ease,background-color .15s ease,border-color .15s ease,color .15s ease,box-shadow .15s ease}
.btn-primary{background:var(--ink);color:var(--bg)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 18px -8px color-mix(in srgb,var(--ink) 60%,transparent)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--ink)}
.btn .arr{transition:transform .15s ease}
.btn:hover .arr{transform:translateX(3px)}
.nav .btn{gap:0;padding:9px 18px;font-size:.9rem;white-space:nowrap}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .btn,.btn .arr{transition:none}
  .btn-primary:hover,.btn:hover .arr{transform:none}
}
@media (max-width:820px){
  .menu-btn{display:inline-flex}
  .nav nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);box-shadow:0 12px 24px -16px rgba(0,0,0,.35)}
  .nav.open nav{display:block}
  .nav ul{flex-direction:column;gap:0;padding:8px clamp(16px,4vw,40px) 16px;font-size:1.05rem}
  .nav ul a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav ul li:last-child a{border-bottom:0}
  .nav ul a[aria-current="true"]{text-decoration:none;color:var(--accent)}
}
@media (max-width:440px){.nav .btn .long{display:none}.nav .btn{padding-inline:16px}}

/* Hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
#signal{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.9fr);gap:56px;align-items:center;padding-block:clamp(48px,7vw,88px) clamp(48px,6vw,80px)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;margin-bottom:26px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.hero h1{font-size:clamp(2.3rem,4.4vw,3.5rem);font-weight:700}
.hero h1 em{font-style:normal;color:var(--accent)}
.lede{margin-top:24px;font-size:1.15rem;color:var(--muted);max-width:56ch}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.spec{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px 24px;font-family:var(--f-mono);font-size:.86rem;min-width:0}
.spec-head{display:flex;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:1px dashed var(--line);margin-bottom:6px}
.spec dl{margin:0;display:grid;grid-template-columns:auto 1fr;column-gap:18px}
.spec dt{color:var(--muted);padding-block:9px;border-bottom:1px solid var(--line)}
.spec dd{margin:0;padding-block:9px;border-bottom:1px solid var(--line);text-align:right;font-variant-numeric:tabular-nums}
.spec dt:last-of-type,.spec dd:last-of-type{border-bottom:0}
.spec dd b{color:var(--accent);font-weight:500}
@media (max-width:1100px){.hero .wrap{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:40px}}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr;gap:40px}}
@media (max-width:480px){
  .spec{padding:18px 20px}
  .spec dl{grid-template-columns:1fr}
  .spec dt{padding-block:10px 0;border-bottom:0;font-size:.74rem;letter-spacing:.04em}
  .spec dd{padding-block:2px 10px;text-align:left}
}

/* Sections */
section{padding-block:clamp(64px,9vw,112px)}
.sec-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:40px;align-items:end;margin-bottom:48px}
.sec-head p{color:var(--muted);max-width:52ch}
@media (max-width:760px){.sec-head{grid-template-columns:1fr;gap:16px}}

/* Servicios */
.services{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1px solid var(--ink)}
.svc{padding:30px 28px 32px 0;display:flex;flex-direction:column;gap:16px;min-width:0}
.svc + .svc{padding-left:28px;border-left:1px solid var(--line)}
.svc .tag{color:var(--accent)}
.svc p{color:var(--muted)}
.svc ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px;font-size:.95rem}
.svc li{display:flex;gap:10px}
.svc li::before{content:"";flex:none;width:6px;height:6px;margin-top:.62em;background:var(--signal);border-radius:1px}
.svc .fit{margin-top:auto;padding-top:16px;border-top:1px dashed var(--line);font-size:.92rem}
.svc .fit b{font-weight:600;color:var(--ink)}
@media (max-width:900px){.services{grid-template-columns:1fr}.svc,.svc + .svc{padding:28px 0;border-left:0;border-bottom:1px solid var(--line)}}

/* Proceso */
.process-sec{background:var(--surface);border-block:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;list-style:none;margin:0;padding:0;counter-reset:s}
.steps li{counter-increment:s;display:flex;flex-direction:column;gap:10px;padding-top:18px;border-top:2px solid var(--line);min-width:0}
.steps li:first-child{border-top-color:var(--accent)}
.steps li::before{content:"Paso " counter(s);font-family:var(--f-mono);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.steps p{color:var(--muted);font-size:.96rem}
@media (max-width:900px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}

/* Sobre mí */
.about{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:64px}
.about .story{display:flex;flex-direction:column;gap:20px;font-size:1.06rem;max-width:62ch}
.about .story p:first-child{font-family:var(--f-display);font-size:1.45rem;line-height:1.35;font-weight:500;letter-spacing:-.01em}
.timeline{list-style:none;margin:36px 0 0;padding:0;border-left:1px solid var(--line)}
.timeline li{position:relative;padding:0 0 26px 24px}
.timeline li::before{content:"";position:absolute;left:-5px;top:.5em;width:9px;height:9px;border-radius:50%;background:var(--bg);border:2px solid var(--signal)}
.timeline li:last-child::before{background:var(--accent);border-color:var(--accent)}
.timeline .yr{font-family:var(--f-mono);font-size:.78rem;color:var(--muted);letter-spacing:.05em}
.timeline b{display:block;font-weight:600;margin-top:2px}
.timeline span{color:var(--muted);font-size:.94rem}
@media (max-width:860px){.about{grid-template-columns:1fr;gap:40px}}

/* Notas */
.notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.note{display:flex;flex-direction:column;gap:14px;padding:24px;border:1px solid var(--line);border-radius:14px;background:var(--surface);min-width:0}
.note .meta{display:flex;justify-content:space-between;gap:8px}
.note p{color:var(--muted);font-size:.95rem}
.note h3{font-size:1.2rem}
.soon{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);background:var(--accent-soft);padding:3px 8px;border-radius:999px;white-space:nowrap}
@media (max-width:900px){.notes{grid-template-columns:1fr}}

/* Newsletter */
.letter{margin-top:40px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;align-items:center;padding:32px;border-radius:16px;background:var(--ink);color:var(--bg)}
.letter h3{font-size:1.5rem}
.letter p{opacity:.75;margin-top:8px}
.letter form{display:flex;gap:10px;flex-wrap:wrap}
.letter input{flex:1 1 220px;min-width:0;min-height:48px;font:inherit;font-size:1rem;padding:12px 18px;border-radius:999px;border:1px solid color-mix(in srgb,var(--bg) 50%,var(--ink));background:transparent;color:var(--bg);transition:border-color .15s ease}
.letter input:hover{border-color:var(--bg)}
.letter input[aria-invalid="true"]{border-color:var(--amber)}
.letter input::placeholder{color:color-mix(in srgb,var(--bg) 60%,var(--ink))}
.letter .btn{min-height:48px;background:var(--amber);color:var(--on-amber)}
.letter .btn:hover{background:color-mix(in srgb,var(--amber) 85%,#fff)}
.letter .msg{flex-basis:100%;font-size:.92rem;min-height:1.5em}
.letter .msg:empty{display:none}
@media (max-width:760px){.letter{grid-template-columns:1fr;padding:24px}}

/* Proyectos */
.project{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:48px;align-items:center;padding:clamp(24px,4vw,40px);border:1px solid var(--line);border-radius:16px;background:var(--bg)}
.project-body{display:flex;flex-direction:column;gap:16px;min-width:0}
.project .tag{color:var(--accent)}
.project h3{font-size:clamp(1.6rem,2.6vw,2rem)}
.project p{color:var(--muted);max-width:60ch}
.project ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px;font-size:.95rem}
.project li{display:flex;gap:10px}
.project li::before{content:"";flex:none;width:6px;height:6px;margin-top:.62em;background:var(--signal);border-radius:1px}
.project .fit{padding-top:16px;border-top:1px dashed var(--line);font-size:.95rem}
.project .fit b{font-weight:600;color:var(--ink)}
.project .cta{margin-top:8px}
.shot{margin:0;justify-self:center;width:100%;max-width:260px;aspect-ratio:9/16;border-radius:28px;overflow:hidden;border:1px solid var(--line);box-shadow:0 24px 48px -24px rgba(0,0,0,.45);background:var(--surface)}
.shot img{display:block;width:100%;height:100%;object-fit:cover;object-position:top}
@media (max-width:860px){.project{grid-template-columns:1fr;gap:32px}.shot{max-width:220px}}

/* Contacto */
.contact{border-top:1px solid var(--line)}
.contact .wrap{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:48px;align-items:start}
.contact h2{font-size:clamp(2rem,4.4vw,3.2rem)}
.contact .lede{margin-top:18px}
.channels{display:flex;flex-direction:column;border-top:1px solid var(--ink)}
.channel{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-block:18px;border-bottom:1px solid var(--line);text-decoration:none;min-width:0}
.channel .v{font-weight:500;overflow-wrap:anywhere;text-align:right;transition:color .15s ease}
a.channel:hover .v,.channel a.v:hover{color:var(--accent)}
.channel a.v{text-decoration:none}
.channel .end{display:flex;align-items:center;gap:12px;min-width:0}
.copy{flex:none;font:inherit;font-size:.8rem;font-family:var(--f-mono);background:transparent;border:1px solid var(--line);color:var(--muted);border-radius:999px;min-height:36px;padding:6px 14px;cursor:pointer;transition:border-color .15s ease,color .15s ease}
.copy:hover{border-color:var(--ink);color:var(--ink)}
@media (max-width:440px){.channel:has(.copy){flex-wrap:wrap}.channel .end{flex:1 1 100%;justify-content:space-between}}
@media (max-width:860px){.contact .wrap{grid-template-columns:1fr}}

footer{padding-block:28px;border-top:1px solid var(--line)}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}

/* Idiomas: selector en la nav y etiqueta de los pasos */
.lang{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;padding:0 6px;font-family:var(--f-mono);font-size:.8rem;letter-spacing:.06em;color:var(--muted);text-decoration:none;border-radius:8px;transition:color .15s ease}
.lang:hover{color:var(--ink)}
:lang(en) .steps li::before{content:"Step " counter(s)}