/* =============================================================
   VANTIVA PARTNERS — Lujo silencioso (Vogue / Gucci)
   Marfil cálido · serif Cormorant · Jost small-caps · hairlines
   ============================================================= */

/* ---------- 1. Tokens ---------- */
:root {
  --bg:        #eeeeef;   /* off-white claro (no blanco puro) */
  --bg-2:      #e7e7e9;
  --paper:     #f3f3f4;
  --ink:       #201d18;   /* casi negro cálido */
  --ink-soft:  #4b453c;
  --mute:      #8a8a8f;
  --line:      rgba(30,30,34,.16);
  --line-soft: rgba(30,30,34,.08);
  --gold:      #9a7b3f;   /* dorado apagado, un susurro */
  --gold-deep: #7c6231;
  --dark:      #16171d;   /* banda oscura / hero */
  --dark-2:    #0f1015;
  --cream:     #f2f2f3;   /* off-white neutro sobre oscuro */
  --wa:        #25d366;
  --wa-deep:   #1ea952;

  --container: 1180px;
  --gutter:    clamp(1.25rem, 5vw, 3.25rem);

  --sans:      "Jost", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif:     "Cormorant Garamond", Georgia, "Times New Roman", serif;

  --ease:      cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; overflow-x: clip; scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 16px; font-weight: 400; line-height: 1.7;
  color: var(--ink-soft); background: var(--bg);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: clip; overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; color: var(--ink); line-height: 1.08; letter-spacing: .002em; }
em { font-style: italic; color: inherit; }
::selection { background: var(--ink); color: var(--bg); }
:focus-visible { outline: 1.5px solid var(--gold); outline-offset: 4px; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }

.skip-link { position: fixed; top: -100px; left: 1rem; padding: .6rem 1rem; background: var(--ink); color: var(--bg); z-index: 9999; }
.skip-link:focus { top: 1rem; }

/* ---------- 3. Tipografía de apoyo ---------- */
.kicker {
  font-family: var(--sans); font-weight: 400; font-size: .72rem;
  letter-spacing: .28em; text-transform: uppercase; color: var(--gold);
  margin-bottom: 1.6rem;
}
.section { padding-block: clamp(4.5rem, 11vw, 9rem); position: relative; }
.section-head { margin-bottom: clamp(2.5rem, 5vw, 4.5rem); max-width: 30ch; }
.section-title { font-size: clamp(2.1rem, 5vw, 3.6rem); font-weight: 500; letter-spacing: 0; }
.section-title em { color: var(--gold); }

/* ---------- 4. Botones / enlaces ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--sans); font-weight: 400; font-size: .78rem;
  letter-spacing: .18em; text-transform: uppercase;
  padding: 1.05rem 2rem; border-radius: 0;
  border: 1px solid var(--ink); color: var(--ink); background: transparent;
  transition: background .5s var(--ease), color .5s var(--ease), border-color .5s var(--ease);
}
.btn:hover { background: var(--ink); color: var(--bg); }
.btn-lg { padding: 1.2rem 2.6rem; font-size: .82rem; }
.btn-light { border-color: var(--cream); color: var(--cream); }
.btn-light:hover { background: var(--cream); color: var(--dark); }

.link-underline {
  font-family: var(--sans); font-size: .78rem; letter-spacing: .18em; text-transform: uppercase;
  color: inherit; position: relative; padding-bottom: 3px;
}
.link-underline::after { content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%; background: currentColor; transform: scaleX(1); transform-origin: right; transition: transform .5s var(--ease); }
.link-underline:hover::after { transform: scaleX(0); transform-origin: left; }

/* ---------- 5. NAV ---------- */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 100; color: var(--cream);
  transition: background .5s var(--ease), color .5s var(--ease), border-color .5s var(--ease); border-bottom: 1px solid transparent; }
.nav-inner { max-width: var(--container); margin-inline: auto; padding: 1.35rem var(--gutter); display: flex; align-items: center; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: .65rem; color: inherit; }
.brand-mark { width: 26px; height: 24px; flex: none; }
.brand-text { font-family: var(--sans); font-weight: 500; font-size: .92rem; letter-spacing: .22em; text-transform: uppercase; }
.brand-sub { margin-left: .4em; color: var(--gold); font-weight: 400; }
.nav-links { display: none; margin-left: auto; gap: 2.4rem; }
.nav-links a { font-family: var(--sans); font-size: .74rem; letter-spacing: .18em; text-transform: uppercase; color: inherit; position: relative; padding: .4rem 0; opacity: .85; transition: opacity .4s; }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0; background: currentColor; transition: width .45s var(--ease); }
.nav-links a:hover { opacity: 1; }
.nav-links a:hover::after { width: 100%; }
.nav-cta { font-family: var(--sans); font-size: .74rem; letter-spacing: .18em; text-transform: uppercase; padding: .7rem 1.3rem; border: 1px solid currentColor; color: inherit; transition: background .45s var(--ease), color .45s var(--ease); }
.nav-cta:hover { background: var(--cream); color: var(--dark); }

.nav.is-stuck { background: rgba(238,238,239,.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); color: var(--ink); border-bottom-color: var(--line); }
.nav.is-stuck .nav-cta:hover { background: var(--ink); color: var(--bg); }

.nav-toggle { display: inline-flex; flex-direction: column; gap: 6px; margin-left: auto; padding: .5rem; }
.nav-toggle span { width: 26px; height: 1.5px; background: currentColor; transition: transform .3s var(--ease), opacity .3s; }
.nav.is-open .nav-toggle span:first-child { transform: translateY(3.75px) rotate(45deg); }
.nav.is-open .nav-toggle span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

@media (min-width: 940px) { .nav-links { display: flex; } .nav-toggle { display: none; } }
@media (max-width: 939px) {
  .nav-links { display: flex; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 0; margin-left: 0;
    background: var(--bg); color: var(--ink); border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height .5s var(--ease); }
  .nav.is-open .nav-links { max-height: 70vh; }
  .nav-links a { padding: 1.1rem var(--gutter); border-top: 1px solid var(--line-soft); width: 100%; opacity: 1; }
  .nav-cta { display: none; }
  .nav-toggle { color: var(--cream); }
  .nav.is-stuck .nav-toggle { color: var(--ink); }
}

/* ---------- 6. HERO (video pantalla completa) ---------- */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; align-items: flex-end; background: var(--dark); overflow: hidden; }
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-video { width: 100%; height: 100%; object-fit: contain; background: var(--dark); }
/* Desktop/landscape: full-bleed tipo Färg. Móvil vertical: logo completo sin recorte. */
@media (min-width: 740px) { .hero-video { object-fit: cover; } }
.hero-scrim { position: absolute; inset: 0; background:
  linear-gradient(180deg, rgba(15,16,21,.45) 0%, transparent 22%, transparent 55%, rgba(15,16,21,.72) 100%); }
.hero-overlay { position: relative; z-index: 1; width: 100%; padding-bottom: clamp(3.5rem, 8vh, 6rem); color: var(--cream); }
.hero-kicker { font-family: var(--sans); font-size: .72rem; letter-spacing: .3em; text-transform: uppercase; color: rgba(239,233,222,.75); margin-bottom: 1.3rem; }
.hero-title { font-size: clamp(2.6rem, 7vw, 5.4rem); font-weight: 500; color: var(--cream); line-height: 1.02; letter-spacing: .005em; }
.hero-title em { color: #d9c48c; }
.hero-sub { font-family: var(--sans); font-weight: 300; font-size: clamp(.95rem, 1.6vw, 1.15rem); letter-spacing: .04em; color: rgba(239,233,222,.82); margin-top: 1.3rem; }
.hero-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 1.6rem; margin-top: 2.4rem; }
.hero-scroll { position: absolute; right: var(--gutter); bottom: clamp(3.5rem, 8vh, 6rem); z-index: 1; display: none; align-items: center; gap: .8rem; color: rgba(239,233,222,.7); font-family: var(--sans); font-size: .66rem; letter-spacing: .28em; text-transform: uppercase; writing-mode: vertical-rl; }
.hero-scroll i { display: block; width: 1px; height: 46px; background: linear-gradient(rgba(239,233,222,.7), transparent); }
@media (min-width: 940px) { .hero-scroll { display: flex; } }

/* ---------- 7. MANIFIESTO ---------- */
.manifesto { text-align: left; }
.manifesto-lead { font-family: var(--serif); font-weight: 500; font-size: clamp(1.9rem, 4.6vw, 3.4rem); line-height: 1.22; color: var(--ink); max-width: 20ch; letter-spacing: .003em; }
.manifesto-lead em { color: var(--gold); }
.manifesto-note { margin-top: 2.2rem; max-width: 46ch; font-size: 1.02rem; color: var(--mute); }

/* ---------- 8. SERVICIOS (lista editorial) ---------- */
.srv-list { list-style: none; border-top: 1px solid var(--line); }
.srv { display: grid; grid-template-columns: auto 1fr; gap: 1.5rem; align-items: baseline; padding: clamp(1.8rem, 3.5vw, 2.8rem) 0; border-bottom: 1px solid var(--line); transition: padding-left .5s var(--ease); }
.srv:hover { padding-left: .8rem; }
.srv-num { font-family: var(--sans); font-size: .78rem; letter-spacing: .2em; color: var(--gold); padding-top: .5rem; }
.srv-body h3 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 500; margin-bottom: .5rem; }
.srv-body p { max-width: 52ch; color: var(--mute); }
@media (min-width: 720px) { .srv { grid-template-columns: 5rem 1fr; gap: 3rem; } .srv-body { display: grid; grid-template-columns: 1.1fr 1fr; gap: 2.5rem; align-items: baseline; } .srv-body h3 { margin-bottom: 0; } }

/* ---------- 9. PORTAFOLIO (grilla editorial) ---------- */
.portfolio-grid { display: grid; grid-template-columns: 1fr; gap: clamp(2.5rem, 6vw, 4.5rem); align-items: center; }
.portfolio-intro .section-title { font-size: clamp(1.9rem, 4.2vw, 3rem); }
.portfolio-text { margin: 1.2rem 0 2.2rem; color: var(--mute); max-width: 34ch; }
.portfolio-gallery { display: grid; grid-template-columns: 1fr; gap: clamp(1rem, 2.4vw, 1.8rem); }
@media (min-width: 540px) { .portfolio-gallery { grid-template-columns: repeat(2, 1fr); } }
.pf-item { margin: 0; overflow: hidden; border-radius: 6px; box-shadow: 0 24px 50px -28px rgba(20,20,25,.45); background: var(--dark); }
.pf-item img { width: 100%; height: auto; display: block; transition: transform .9s var(--ease); }
.pf-item:hover img { transform: scale(1.04); }
@media (min-width: 900px) { .portfolio-grid { grid-template-columns: .82fr 1.18fr; } }

/* ---------- 10. PROCESO ---------- */
.method { display: flex; flex-wrap: wrap; align-items: baseline; gap: 1rem 1.6rem; padding: clamp(1.4rem, 3vw, 2rem) clamp(1.4rem, 3vw, 2.2rem); margin-bottom: clamp(2.2rem, 4vw, 3.2rem); border: 1px solid var(--gold); background: rgba(154,123,63,.06); }
.method-tag { font-family: var(--sans); font-size: .72rem; letter-spacing: .22em; text-transform: uppercase; color: var(--gold); white-space: nowrap; }
.method-text { font-family: var(--serif); font-style: italic; font-size: clamp(1.15rem, 2.4vw, 1.6rem); color: var(--ink); line-height: 1.3; flex: 1; min-width: 260px; }
.method-text em { color: var(--gold); }
.steps { list-style: none; display: grid; grid-template-columns: 1fr; gap: 0; border-top: 1px solid var(--line); }
.step { padding: clamp(1.8rem, 3vw, 2.4rem) 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: auto 1fr; gap: 1.4rem; align-items: baseline; }
.step-num { font-family: var(--serif); font-style: italic; font-size: 2rem; color: var(--gold); line-height: 1; width: 2.5rem; }
.step h3 { font-size: clamp(1.35rem, 2.6vw, 1.8rem); font-weight: 500; margin-bottom: .5rem; }
.step p { max-width: 54ch; color: var(--mute); }
@media (min-width: 720px) { .steps { grid-template-columns: repeat(2, 1fr); column-gap: 4rem; } .step:nth-last-child(2) { border-bottom: 1px solid var(--line); } }

/* ---------- 11. NOSOTROS ---------- */
.about-grid { display: grid; grid-template-columns: 1fr; gap: clamp(2.5rem, 6vw, 5rem); align-items: center; }
.about-copy p { margin-top: 1.4rem; color: var(--mute); font-size: 1.05rem; max-width: 48ch; }
.about-quote { margin-top: 2rem; font-family: var(--serif); font-style: italic; font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 500; color: var(--ink); line-height: 1.28; padding-left: 1.4rem; border-left: 1px solid var(--gold); max-width: 24ch; }
.about-metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border-top: 1px solid var(--line); }
.metric { padding: clamp(1.6rem, 3.4vw, 2.4rem) 1.2rem clamp(1.6rem, 3.4vw, 2.4rem) 0; border-bottom: 1px solid var(--line); }
.metric:nth-child(odd) { border-right: 1px solid var(--line); padding-right: 1.6rem; }
.metric:nth-child(even) { padding-left: 1.6rem; }
.metric-num { display: block; font-family: var(--serif); font-weight: 500; font-size: clamp(2.9rem, 5.6vw, 4.1rem); color: var(--gold); line-height: .95; letter-spacing: -.01em; }
.metric-label { display: block; margin-top: .9rem; font-family: var(--sans); font-size: .82rem; letter-spacing: .01em; color: var(--ink-soft); line-height: 1.45; max-width: 22ch; }
@media (min-width: 860px) { .about-grid { grid-template-columns: 1.05fr .95fr; } }

/* ---------- 12. OPINIONES ---------- */
.reviews-grid { display: grid; grid-template-columns: 1fr; gap: 0; border-top: 1px solid var(--line); }
.review { padding: clamp(2rem, 4vw, 3rem) 0; border-bottom: 1px solid var(--line); margin: 0; }
.review blockquote { font-family: var(--serif); font-style: italic; font-size: clamp(1.4rem, 2.6vw, 1.9rem); font-weight: 400; color: var(--ink); line-height: 1.36; max-width: 40ch; }
.review figcaption { margin-top: 1.2rem; font-family: var(--sans); font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; color: var(--mute); }
.reviews-note { margin-top: 1.8rem; font-family: var(--sans); font-size: .74rem; letter-spacing: .05em; color: var(--mute); opacity: .7; }
@media (min-width: 860px) { .reviews-grid { grid-template-columns: repeat(3, 1fr); column-gap: 3rem; } .review { border-bottom: none; } }

/* ---------- 13. FAQ ---------- */
.faq-grid { display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 5vw, 4rem); }
@media (min-width: 900px) { .faq-grid { grid-template-columns: .75fr 1.25fr; align-items: start; } .faq-head { position: sticky; top: 110px; margin-bottom: 0; } }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary { list-style: none; cursor: pointer; padding: 1.5rem 0; font-family: var(--serif); font-weight: 500; font-size: clamp(1.2rem, 2.2vw, 1.5rem); color: var(--ink); display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-family: var(--sans); font-weight: 300; font-size: 1.5rem; color: var(--gold); transition: transform .4s var(--ease); flex: none; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-body { padding: 0 0 1.6rem; max-width: 60ch; }
.faq-body p { color: var(--mute); }

/* ---------- 14. CIERRE (banda oscura) ---------- */
.closing { background: var(--dark); color: var(--cream); text-align: center; }
.closing .kicker { color: #d9c48c; }
.closing-inner { max-width: 42rem; margin-inline: auto; }
.closing-title { font-size: clamp(2.3rem, 6vw, 4.2rem); font-weight: 500; color: var(--cream); }
.closing-deck { margin: 1.5rem auto 2.6rem; max-width: 40ch; font-family: var(--sans); font-weight: 300; color: rgba(239,233,222,.75); font-size: 1.08rem; }
.closing-sub { margin-top: 1.6rem; font-family: var(--sans); font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; color: rgba(239,233,222,.5); }

/* ---------- 15. FOOTER ---------- */
.footer { border-top: 1px solid var(--line); padding-block: 3.5rem; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; text-align: center; }
.footer .brand { color: var(--ink); }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.footer-links a { font-family: var(--sans); font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--mute); transition: color .4s; }
.footer-links a:hover { color: var(--ink); }
.footer-copy { font-family: var(--sans); font-size: .74rem; letter-spacing: .04em; color: var(--mute); opacity: .8; }

/* ---------- 16. WhatsApp flotante (discreto) ---------- */
.wa-float { position: fixed; right: 1.4rem; bottom: 1.4rem; z-index: 90; width: 54px; height: 54px; border-radius: 999px;
  background: var(--wa); color: #fff; display: grid; place-items: center; box-shadow: 0 10px 30px -10px rgba(0,0,0,.35);
  transition: transform .4s var(--ease); }
.wa-float svg { width: 28px; height: 28px; }
.wa-float:hover { transform: scale(1.06); }

/* ---------- 17. Reveal (sutil) ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- 18. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .work:hover .work-media img { transform: none; }
}