/* Vivi.Sabe — sistema de diseño compartido
   Tipografías: Playfair Display (títulos), Lato (texto), IBM Plex Mono (etiquetas)
   Paleta: crema, petróleo, terracota, carbón */

:root {
  --paper: #FAF4EA;
  --surface: #FFFFFF;
  --cream: #EFE2D1;
  --ink: #221E1A;
  --body: #3A332C;
  --muted: #6E6055;
  --rule: #DCCDB9;
  --petroleo: #2C6B82;
  --petroleo-deep: #17414F;
  --petroleo-soft: #E3EDF1;
  --terracotta: #B06F50;
  --rosa: #F0CDC6;
  --on-deep: #EFE2D1;
  --on-deep-dim: #B9C8CE;
  --shadow: 0 1px 2px rgba(34,30,26,.06), 0 12px 28px -18px rgba(23,65,79,.35);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #14120F; --surface: #1D1A16; --cream: #2A2521;
    --ink: #F2E8DA; --body: #DCD1C2; --muted: #A29586; --rule: #3A332C;
    --petroleo: #7FB6CB; --petroleo-deep: #0F2C36; --petroleo-soft: #1C2A30;
    --terracotta: #D2937A; --rosa: #E2B3AA;
    --on-deep: #EFE2D1; --on-deep-dim: #A9BCC4;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 12px 28px -18px rgba(0,0,0,.7);
  }
}
:root[data-theme="dark"] {
  --paper: #14120F; --surface: #1D1A16; --cream: #2A2521;
  --ink: #F2E8DA; --body: #DCD1C2; --muted: #A29586; --rule: #3A332C;
  --petroleo: #7FB6CB; --petroleo-deep: #0F2C36; --petroleo-soft: #1C2A30;
  --terracotta: #D2937A; --rosa: #E2B3AA;
  --on-deep: #EFE2D1; --on-deep-dim: #A9BCC4;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 12px 28px -18px rgba(0,0,0,.7);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--body);
  font-family: Lato, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 {
  font-family: "Playfair Display", Georgia, "Times New Roman", serif;
  color: var(--ink); font-weight: 500; text-wrap: balance; margin: 0;
}
p { margin: 0; }
a { color: var(--petroleo); }
img { max-width: 100%; }

.wrap { width: min(1120px, calc(100% - 3rem)); margin-inline: auto; }
.narrow { width: min(760px, calc(100% - 3rem)); margin-inline: auto; }
.eyebrow {
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: .72rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--terracotta); margin: 0;
}

/* idioma */
#site[data-lang="en"] .es { display: none; }
#site[data-lang="es"] .en { display: none; }

/* cabecera */
header.masthead {
  border-bottom: 1px solid var(--rule); background: var(--paper);
  position: sticky; top: 0; z-index: 30;
}
.masthead .wrap { display: flex; align-items: center; gap: 1.25rem; padding: 1rem 0; }
.brand { display: flex; align-items: baseline; gap: .6rem; text-decoration: none; }
.brand .mark { font-family: "Playfair Display", serif; font-size: 1.3rem; color: var(--ink); letter-spacing: -.01em; }
.brand .mark b { font-weight: 600; }
.brand .sub {
  font-family: "IBM Plex Mono", monospace; font-size: .64rem; letter-spacing: .13em;
  text-transform: uppercase; color: var(--muted);
  border-left: 1px solid var(--rule); padding-left: .6rem;
}
nav.main { margin-left: auto; display: flex; align-items: center; gap: 1.4rem; }
nav.main a {
  color: var(--body); text-decoration: none; font-size: .92rem;
  padding-bottom: 2px; border-bottom: 1px solid transparent;
}
nav.main a:hover { border-bottom-color: var(--terracotta); color: var(--ink); }
nav.main a[aria-current="page"] { border-bottom-color: var(--petroleo); color: var(--ink); }
.langswitch { display: inline-flex; border: 1px solid var(--rule); border-radius: 2px; overflow: hidden; }
.langswitch button {
  font-family: "IBM Plex Mono", monospace; font-size: .7rem; letter-spacing: .1em;
  padding: .38rem .6rem; border: 0; background: transparent; color: var(--muted); cursor: pointer;
}
.langswitch button[aria-pressed="true"] { background: var(--petroleo); color: #fff; }
.langswitch button:focus-visible, nav.main a:focus-visible, .btn:focus-visible, .brand:focus-visible {
  outline: 2px solid var(--terracotta); outline-offset: 3px;
}

/* botones */
.cta-row { display: flex; flex-wrap: wrap; gap: 1rem 1.4rem; align-items: center; margin-top: 2rem; }
.btn {
  display: inline-block; text-decoration: none; font-size: .95rem; letter-spacing: .02em;
  padding: .78rem 1.5rem; border-radius: 2px; background: var(--petroleo-deep); color: #F4EADC;
  border: 1px solid var(--petroleo-deep); transition: background .18s ease;
}
.btn:hover { background: var(--petroleo); border-color: var(--petroleo); }
.btn.ghost { background: transparent; color: var(--petroleo); border-color: var(--rule); }
.btn.ghost:hover { background: var(--petroleo-soft); border-color: var(--petroleo); }

/* secciones */
section { padding: 4.5rem 0; }
.hero { padding: 4.5rem 0 3.5rem; }
.hero h1 { font-size: clamp(2.2rem, 4.4vw, 3.4rem); line-height: 1.1; margin: 1.1rem 0 1.4rem; }
.hero .lede { font-size: 1.12rem; max-width: 34em; color: var(--body); }
.hero .grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 4rem; align-items: start; }
.sec-head { max-width: 44em; margin-bottom: 2.8rem; }
.sec-head h2 { font-size: clamp(1.8rem, 2.8vw, 2.3rem); margin: .7rem 0 .9rem; }
.sec-head p { color: var(--muted); }

/* ficha técnica */
.datasheet { background: var(--surface); border: 1px solid var(--rule); border-top: 3px solid var(--terracotta); box-shadow: var(--shadow); }
.datasheet .ds-head { padding: 1.1rem 1.4rem .9rem; border-bottom: 1px solid var(--rule); }
.datasheet .ds-head h2 { font-size: 1.15rem; margin-top: .35rem; }
.datasheet dl { margin: 0; padding: .4rem 1.4rem 1.4rem; }
.datasheet dt {
  font-family: "IBM Plex Mono", monospace; font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--muted); margin-top: 1.1rem;
}
.datasheet dd { margin: .2rem 0 0; font-size: .95rem; color: var(--body); }
.datasheet .note { padding: .9rem 1.4rem 1.2rem; border-top: 1px dashed var(--rule); font-size: .8rem; color: var(--muted); }

/* franja de datos */
.strip { border-block: 1px solid var(--rule); background: var(--cream); }
.strip .wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; padding: 1.9rem 0; }
.strip .fact .n { font-family: "Playfair Display", serif; font-size: 1.75rem; color: var(--petroleo); display: block; line-height: 1.15; }
.strip .fact p { font-size: .88rem; color: var(--muted); margin-top: .25rem; }

/* rejilla de servicios */
.services { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.svc { background: var(--surface); padding: 2rem 1.9rem 2.1rem; display: flex; flex-direction: column; gap: .7rem; }
.svc h3 { font-size: 1.3rem; }
.svc .code { font-family: "IBM Plex Mono", monospace; font-size: .68rem; letter-spacing: .12em; color: var(--terracotta); text-transform: uppercase; }
.svc p { font-size: .96rem; }
.svc ul { margin: .2rem 0 0; padding-left: 1.05rem; font-size: .9rem; color: var(--muted); }
.svc li { margin-bottom: .3rem; }
.svc .more { margin-top: auto; padding-top: .8rem; font-size: .9rem; }
.svc .more a { text-decoration: none; border-bottom: 1px solid var(--rule); }
.svc .more a:hover { border-bottom-color: var(--petroleo); }

/* proceso */
.process { background: var(--petroleo-deep); color: var(--on-deep); }
.process h2, .process h3 { color: var(--on-deep); }
.process .sec-head p { color: var(--on-deep-dim); }
.process .eyebrow { color: var(--rosa); }
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.6rem; border-top: 1px solid rgba(239,226,209,.22); padding-top: 1.6rem; }
.steps.four { grid-template-columns: repeat(4, 1fr); }
.step .num { font-family: "IBM Plex Mono", monospace; font-size: .78rem; letter-spacing: .1em; color: var(--rosa); }
.step h3 { font-size: 1.08rem; margin: .5rem 0 .45rem; }
.step p { font-size: .89rem; color: var(--on-deep-dim); line-height: 1.55; }

/* precios */
.plans { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; align-items: start; }
.plan { background: var(--surface); border: 1px solid var(--rule); padding: 2rem 1.9rem 2.2rem; display: flex; flex-direction: column; gap: .8rem; }
.plan.featured { border-top: 3px solid var(--terracotta); box-shadow: var(--shadow); }
.plan .tag { font-family: "IBM Plex Mono", monospace; font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--terracotta); }
.plan h3 { font-size: 1.45rem; }
.plan .price { font-family: "Playfair Display", serif; font-size: 2.6rem; color: var(--petroleo); line-height: 1; font-variant-numeric: tabular-nums; }
.plan .breakdown { font-size: .85rem; color: var(--muted); }
.plan ul { margin: .4rem 0 0; padding-left: 1.05rem; font-size: .93rem; }
.plan li { margin-bottom: .4rem; }
.plan .btn { align-self: flex-start; margin-top: .6rem; }

/* listas de requisitos */
.reqs { columns: 2; column-gap: 3rem; margin: 0; padding-left: 1.1rem; }
.reqs li { margin-bottom: .55rem; break-inside: avoid; }

/* filas clave/valor */
.creds { margin: 1.6rem 0 0; padding: 0; list-style: none; border-top: 1px solid var(--rule); }
.creds li { display: grid; grid-template-columns: 190px 1fr; gap: 1.2rem; padding: .8rem 0; border-bottom: 1px solid var(--rule); font-size: .93rem; }
.creds .k { font-family: "IBM Plex Mono", monospace; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); padding-top: .22rem; }

.about { display: grid; grid-template-columns: 260px 1fr; gap: 3.5rem; align-items: start; }
.monogram {
  aspect-ratio: 1; display: grid; place-items: center; background: var(--cream);
  border: 1px solid var(--rule); font-family: "Playfair Display", serif; font-size: 4.2rem; color: var(--petroleo);
}

/* alcance */
.scope { background: var(--cream); border-block: 1px solid var(--rule); }
.scope .cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; }
.scope h3 { font-size: 1.05rem; margin-bottom: .5rem; }
.scope p { font-size: .9rem; color: var(--muted); }

/* contacto */
.contact .card {
  background: var(--surface); border: 1px solid var(--rule); border-left: 3px solid var(--terracotta);
  padding: 3rem 3rem 3.2rem; box-shadow: var(--shadow);
}
.contact h2 { font-size: clamp(1.9rem, 3vw, 2.5rem); margin-bottom: 1rem; }
.contact p { max-width: 40em; }
.contact .mail { font-family: "IBM Plex Mono", monospace; font-size: 1rem; }

/* pie */
footer.site { border-top: 1px solid var(--rule); padding: 2.2rem 0 3rem; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 1rem 2rem; align-items: baseline; }
footer.site .fine { font-size: .8rem; color: var(--muted); }
footer.site .social { margin-left: auto; font-size: .8rem; color: var(--muted); }
footer.site .social a { color: var(--muted); text-decoration: none; border-bottom: 1px solid var(--rule); }
footer.site .social a:hover { color: var(--petroleo); }

@media (max-width: 900px) {
  .hero .grid, .about { grid-template-columns: 1fr; gap: 2.5rem; }
  .services, .scope .cols, .plans { grid-template-columns: 1fr; }
  .steps, .steps.four { grid-template-columns: repeat(2, 1fr); }
  .strip .wrap { grid-template-columns: repeat(2, 1fr); gap: 1.4rem; }
  .reqs { columns: 1; }
  .monogram { max-width: 160px; }
  nav.main a { display: none; }
  .contact .card { padding: 2rem 1.5rem 2.2rem; }
}
@media (max-width: 560px) {
  .steps, .steps.four { grid-template-columns: 1fr; }
  .creds li { grid-template-columns: 1fr; gap: .1rem; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto; } }