/* ==========================================================================
   MECHA Tattoo — sistema visual
   Paleta oficial de marca (guia-visual): #4B0C00 rojo, #001014 negro,
   #EFC29A crema, #DCDCDC gris. Tipos: Yanone Kaffeesatz / Montserrat.
   ========================================================================== */

:root {
  /* color */
  --negro: #06090b;            /* base, derivado de #001014 */
  --negro-2: #0b1014;          /* superficies */
  --negro-3: #11181d;          /* superficies elevadas / bordes suaves */
  --rojo: #4b0c00;             /* rojo de marca: fondos y bloques */
  --rojo-borde: #6e1505;       /* líneas y detalles */
  --ember: #c2521f;            /* acento energético (derivado cálido) */
  --crema: #efc29a;            /* acento principal de marca */
  --gris: #dcdcdc;             /* texto */
  --gris-2: #9aa0a0;           /* texto secundario */

  /* tipografía */
  --display: "Yanone Kaffeesatz", "Arial Narrow", sans-serif;
  --body: "Montserrat", "Segoe UI", sans-serif;

  /* ritmo */
  --space: clamp(4rem, 10vw, 8rem);
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 2px;

  /* z */
  --z-nav: 100;
  --z-lightbox: 1000;
}

/* ---------- reset breve ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--negro);
  color: var(--gris);
  font-family: var(--body);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--crema); }
h1, h2, h3 { margin: 0; line-height: 1.02; }

/* grano sutil sobre toda la página */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection { background: var(--rojo); color: var(--crema); }

/* ---------- utilidades ---------- */
.wrap { max-width: 76rem; margin-inline: auto; padding-inline: var(--gutter); }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--crema); color: var(--negro);
  padding: .6rem 1rem; z-index: 200; font-weight: 500;
}
.skip-link:focus { left: 0; }

/* Texto solo para lectores de pantalla y buscadores — invisible visualmente */
.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;
}

:focus-visible { outline: 2px solid var(--ember); outline-offset: 3px; }

.kicker {
  display: inline-flex; align-items: center; gap: .8rem;
  font-family: var(--body); font-size: .72rem; font-weight: 500;
  letter-spacing: .35em; text-transform: uppercase; color: var(--ember);
}
.kicker::before { content: ""; width: 2.2rem; height: 1px; background: var(--rojo-borde); }

.titulo {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  letter-spacing: .015em;
  text-transform: uppercase;
  color: var(--gris);
  margin: .4rem 0 1.2rem;
}
.titulo em { font-style: normal; color: var(--crema); }

/* ---------- botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  min-height: 48px; padding: .65rem 1.8rem;
  font-family: var(--display); font-size: 1.25rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase; text-decoration: none;
  border: 1px solid var(--crema); border-radius: var(--radius);
  color: var(--crema); background: transparent;
  cursor: pointer;
  transition: background .2s ease-out, color .2s ease-out, transform .2s ease-out;
  touch-action: manipulation;
}
.btn:hover { background: var(--crema); color: #240700; transform: translateY(-2px); }
.btn--solid { background: var(--rojo); border-color: var(--rojo-borde); color: var(--crema); }
.btn--solid:hover { background: var(--crema); border-color: var(--crema); color: #240700; }
.btn svg { width: 1.1em; height: 1.1em; flex: none; }

/* ---------- header ---------- */
.header {
  position: fixed; inset: 0 0 auto; z-index: var(--z-nav);
  background: linear-gradient(rgba(4,6,8,.92), rgba(4,6,8,.75));
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(110,21,5,.35);
}
.header__in {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 4.2rem;
}
.brand {
  display: inline-flex; align-items: center; gap: .7rem;
  text-decoration: none;
}
.brand img { height: 3.4rem; width: auto; }
.brand b {
  font-family: var(--display); font-weight: 700; font-size: 1.7rem;
  letter-spacing: .14em; color: var(--gris); text-transform: uppercase;
}
.nav { display: flex; align-items: center; gap: 1.6rem; }
.nav a {
  font-size: .78rem; font-weight: 500; letter-spacing: .22em;
  text-transform: uppercase; text-decoration: none; color: var(--gris-2);
  padding: .5rem 0;
  transition: color .2s;
}
.nav a:hover, .nav a:focus-visible { color: var(--crema); }
.nav .btn { font-size: 1.05rem; min-height: 42px; padding: .35rem 1.2rem; }

.nav-toggle {
  display: none;
  background: none; border: 1px solid var(--rojo-borde); border-radius: var(--radius);
  width: 48px; height: 48px; cursor: pointer; color: var(--crema);
}
.nav-toggle svg { width: 22px; height: 22px; }

@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    padding: 1rem var(--gutter) 1.6rem;
    background: rgba(4,6,8,.97);
    border-bottom: 1px solid var(--rojo-borde);
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: .8rem 0; font-size: .9rem; width: 100%; }
  .nav .btn { margin-top: .8rem; width: 100%; }
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; align-items: flex-end;
  isolation: isolate;
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0; z-index: -2;
}
.hero__bg img {
  width: 100%; height: 100%; object-fit: cover; object-position: 72% 30%;
}
.hero::before {
  /* velo oscuro + energía roja desde la esquina */
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60rem 40rem at 85% 0%, rgba(75,12,0,.55), transparent 60%),
    linear-gradient(180deg, rgba(4,6,8,.55) 0%, rgba(4,6,8,.35) 45%, rgba(4,6,8,.96) 88%);
}
.hero__in { padding-block: 8rem 5rem; width: 100%; }
.hero h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(4.8rem, 17vw, 13rem);
  letter-spacing: .04em; text-transform: uppercase;
  color: var(--gris);
  text-shadow: 0 4px 40px rgba(0,0,0,.6);
}
.hero h1 span { color: var(--crema); }
.hero__tag {
  max-width: 34rem;
  margin: 1.2rem 0 0;
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  color: var(--gris);
}
.hero__meta {
  margin: .8rem 0 0; font-size: .78rem; font-weight: 500;
  letter-spacing: .3em; text-transform: uppercase; color: var(--ember);
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.2rem; }

/* ---------- manifiesto ---------- */
.manifiesto { padding-block: var(--space); }
.manifiesto p {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(1.9rem, 5vw, 3.4rem);
  line-height: 1.18; letter-spacing: .02em;
  text-transform: uppercase;
  max-width: 56rem; margin: 0;
  color: var(--gris-2);
}
.manifiesto p strong { font-weight: 700; color: var(--crema); }

/* ---------- estilos ---------- */
.estilos { padding-block: var(--space); border-top: 1px solid rgba(110,21,5,.3); }
.estilos__grid {
  display: grid; gap: 1px; margin-top: 2.5rem;
  background: rgba(110,21,5,.35);
  border: 1px solid rgba(110,21,5,.35);
}
@media (min-width: 700px) { .estilos__grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .estilos__grid { grid-template-columns: repeat(3, 1fr); } }
.estilo {
  background: var(--negro-2);
  padding: 1.8rem 1.6rem 2rem;
  transition: background .25s ease-out;
}
.estilo:hover { background: var(--negro-3); }
.estilo h3 {
  font-family: var(--display); font-weight: 700; font-size: 1.7rem;
  letter-spacing: .06em; text-transform: uppercase; color: var(--crema);
}
.estilo p { margin: .6rem 0 0; font-size: .92rem; color: var(--gris-2); }
.estilo__num {
  display: block; font-family: var(--display); font-weight: 700; font-size: .95rem;
  letter-spacing: .25em; color: var(--ember); margin-bottom: .6rem;
}

/* ---------- portfolio ---------- */
.portfolio { padding-block: var(--space); border-top: 1px solid rgba(110,21,5,.3); }
.filtros {
  display: flex; flex-wrap: wrap; gap: .5rem;
  margin: 2rem 0 2.2rem; padding: 0; list-style: none;
}
.filtro {
  min-height: 44px; padding: .4rem 1.1rem;
  background: transparent; border: 1px solid var(--negro-3); border-radius: var(--radius);
  font-family: var(--display); font-size: 1.05rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; color: var(--gris-2);
  cursor: pointer; transition: color .2s, border-color .2s, background .2s;
  touch-action: manipulation;
}
.filtro:hover { color: var(--crema); border-color: var(--rojo-borde); }
.filtro[aria-pressed="true"] {
  color: var(--crema); background: var(--rojo); border-color: var(--rojo-borde);
}

.galeria { columns: 2 14rem; column-gap: .8rem; }
@media (min-width: 900px) { .galeria { columns: 3 16rem; } }
.pieza {
  position: relative; break-inside: avoid; margin: 0 0 .8rem;
  border: 1px solid var(--negro-3);
  background: var(--negro-2);
  cursor: zoom-in;
  padding: 0;
  display: block; width: 100%;
}
.pieza img {
  width: 100%;
  transition: opacity .3s ease-out, transform .4s ease-out;
}
.pieza:hover img { opacity: .82; }
.pieza figcaption,
.pieza .pieza__cat,
.carrusel__item .pieza__cat {
  position: absolute; left: 0; bottom: 0; right: 0;
  padding: 1.6rem .9rem .55rem;
  font-size: .68rem; font-weight: 500; letter-spacing: .28em; text-transform: uppercase;
  color: var(--crema); text-align: left;
  background: linear-gradient(transparent, rgba(4,6,8,.85));
  opacity: 0; transition: opacity .25s ease-out;
  pointer-events: none;
}
.pieza:hover .pieza__cat, .pieza:focus-visible .pieza__cat,
.carrusel__item:hover .pieza__cat, .carrusel__item:focus-visible .pieza__cat { opacity: 1; }
.pieza.is-hidden { display: none; }

/* ---------- flash ---------- */
.flash {
  position: relative;
  background: var(--rojo);
  color: var(--crema);
  padding-block: var(--space);
  overflow: hidden;
}
.flash::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(50rem 30rem at 110% 110%, rgba(0,0,0,.5), transparent 65%);
  pointer-events: none;
}
.flash .kicker { color: var(--crema); }
.flash .kicker::before { background: var(--crema); }
.flash .titulo { color: var(--crema); }
.flash__grid {
  position: relative;
  display: grid; gap: 2.5rem; align-items: center;
}
@media (min-width: 900px) { .flash__grid { grid-template-columns: 1.1fr .9fr; } }
.flash p { max-width: 36rem; color: #f4d9bd; }
.flash__img {
  border: 1px solid rgba(239,194,154,.35);
}
.flash__img img { width: 100%; height: 100%; object-fit: cover; }
.flash .btn { border-color: var(--crema); color: var(--crema); }
.flash .btn:hover { background: var(--crema); color: var(--rojo); }

/* ---------- proceso ---------- */
.proceso { padding-block: var(--space); }
.pasos {
  counter-reset: paso;
  display: grid; gap: 2.5rem; margin: 2.5rem 0 0; padding: 0; list-style: none;
}
@media (min-width: 900px) { .pasos { grid-template-columns: repeat(4, 1fr); gap: 2rem; } }
.paso { position: relative; padding-top: 1.4rem; border-top: 1px solid var(--rojo-borde); }
.paso::before {
  counter-increment: paso;
  content: "0" counter(paso);
  font-family: var(--display); font-weight: 700; font-size: 2.6rem;
  color: var(--ember); display: block; line-height: 1;
}
.paso h3 {
  font-family: var(--display); font-weight: 700; font-size: 1.45rem;
  letter-spacing: .06em; text-transform: uppercase; color: var(--gris);
  margin-top: .5rem;
}
.paso p { font-size: .92rem; color: var(--gris-2); margin: .5rem 0 0; }

/* ---------- test cta ---------- */
.test-cta {
  margin-top: 3rem; text-align: center;
  padding-top: 2rem; border-top: 1px solid rgba(110,21,5,.3);
}
.test-cta p {
  font-family: var(--display); font-size: 1.1rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--gris-2); margin-bottom: 1.2rem;
}

/* ---------- sobre ---------- */
.sobre { padding-block: var(--space); border-top: 1px solid rgba(110,21,5,.3); }
.sobre__grid { display: grid; gap: 2.5rem; align-items: center; }
@media (min-width: 900px) { .sobre__grid { grid-template-columns: .85fr 1.15fr; gap: 4rem; } }
.sobre__foto {
  position: relative; border: 1px solid var(--negro-3);
}
.sobre__foto::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(160deg, transparent 60%, rgba(75,12,0,.35));
  pointer-events: none;
}
.sobre p { max-width: 38rem; }
.sobre .firma {
  font-family: var(--display); font-size: 1.6rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; color: var(--crema);
  margin-top: 1.5rem;
}
.sobre .firma small {
  display: block; font-family: var(--body); font-size: .72rem; font-weight: 500;
  letter-spacing: .3em; color: var(--gris-2); margin-top: .3rem;
}

/* ---------- contacto ---------- */
.contacto {
  padding-block: var(--space);
  border-top: 1px solid rgba(110,21,5,.3);
  position: relative; overflow: hidden;
}
.contacto::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(45rem 30rem at 50% 120%, rgba(75,12,0,.4), transparent 65%);
  pointer-events: none;
}
.contacto__nota { max-width: 40rem; color: var(--gris-2); }
.canales {
  position: relative;
  display: grid; gap: 1px; margin-top: 2.5rem;
  background: rgba(110,21,5,.35); border: 1px solid rgba(110,21,5,.35);
}
@media (min-width: 760px) { .canales { grid-template-columns: repeat(3, 1fr); } }
.canal {
  display: flex; flex-direction: column; gap: .4rem;
  padding: 1.8rem 1.6rem 2rem;
  background: var(--negro-2); text-decoration: none;
  transition: background .25s ease-out;
}
.canal:hover { background: var(--negro-3); }
.canal svg { width: 1.6rem; height: 1.6rem; color: var(--ember); }
.canal b {
  font-family: var(--display); font-weight: 700; font-size: 1.4rem;
  letter-spacing: .08em; text-transform: uppercase; color: var(--crema);
  margin-top: .6rem;
}
.canal span { font-size: .9rem; color: var(--gris-2); overflow-wrap: anywhere; }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid rgba(110,21,5,.4);
  padding: 3rem 0 2.2rem;
  background: #04060814;
}
.footer__grid {
  display: grid; gap: 2rem;
}
@media (min-width: 760px) {
  .footer__grid { grid-template-columns: 1fr auto auto; align-items: start; }
}
.footer .brand img { height: 3rem; }
.footer p { margin: .6rem 0 0; font-size: .8rem; color: var(--gris-2); max-width: 24rem; }
.footer h4 {
  margin: 0 0 .6rem; font-size: .7rem; font-weight: 500;
  letter-spacing: .3em; text-transform: uppercase; color: var(--ember);
}
.footer ul { margin: 0; padding: 0; list-style: none; }
.footer li { margin: .3rem 0; }
.footer a { font-size: .85rem; color: var(--gris-2); text-decoration: none; }
.footer a:hover { color: var(--crema); }
.footer__legal {
  margin-top: 2.5rem; padding-top: 1.4rem;
  border-top: 1px solid var(--negro-3);
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between;
  font-size: .72rem; color: #5d6466;
}

/* ---------- lightbox ---------- */
.lightbox {
  border: none; padding: 0; margin: auto;
  background: transparent; max-width: min(92vw, 64rem); max-height: 92svh;
  z-index: var(--z-lightbox);
}
.lightbox::backdrop { background: rgba(2,3,4,.92); }
.lightbox img {
  max-width: 100%; max-height: 86svh; width: auto; height: auto;
  margin-inline: auto; border: 1px solid var(--negro-3);
}
.lightbox__close {
  position: fixed; top: 1rem; right: 1rem;
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--negro-2); color: var(--crema);
  border: 1px solid var(--rojo-borde); border-radius: var(--radius);
  font-size: 1.4rem; cursor: pointer;
}

/* ==========================================================================
   Animación de scroll
   ========================================================================== */

/* reveal on scroll (con retardo escalonado opcional vía --d) */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease-out, transform .6s ease-out; transition-delay: var(--d, 0s); }
.reveal.is-visible { opacity: 1; transform: none; }

/* variante para elementos añadidos por JS (tarjetas, piezas, pasos…) */
.anim { opacity: 0; transform: translateY(28px); transition: opacity .65s ease-out, transform .65s ease-out; transition-delay: var(--d, 0s); }
.anim.is-visible { opacity: 1; transform: none; }
.pieza.anim img { transform: scale(1.05); transition: transform .9s ease-out, opacity .3s ease-out; }
.pieza.anim.is-visible img { transform: none; }

/* mecha encendida: progreso de scroll bajo el header */
.fuse {
  position: absolute; left: 0; bottom: -1px; height: 2px; width: 100%;
  transform: scaleX(0); transform-origin: left;
  background: linear-gradient(90deg, var(--rojo) 0%, var(--ember) 88%, var(--crema) 100%);
  box-shadow: 0 0 8px rgba(194,82,31,.8);
  pointer-events: none;
}

/* header que se esconde al bajar */
.header { transition: transform .35s ease-out; }
.header.is-hidden { transform: translateY(-101%); }

/* parallax del hero (JS solo toca transform/opacity) */
.hero__bg img, .hero__in { will-change: transform; }

/* cintas marquee ligadas al scroll */
.marquee {
  overflow: hidden; padding-block: 1.2rem;
  border-block: 1px solid rgba(110,21,5,.3);
  user-select: none;
}
.marquee__track {
  display: flex; gap: 2.5rem; width: max-content;
  font-family: var(--display); font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  letter-spacing: .04em; text-transform: uppercase;
  line-height: 1; white-space: nowrap;
  color: var(--ember);
  will-change: transform;
}
.marquee__track b { font-weight: 700; color: var(--ember); }
.marquee--invertida .marquee__track { color: rgba(239,194,154,.45); }
.marquee--invertida .marquee__track b { color: var(--crema); }

/* manifiesto que se enciende palabra a palabra */
.manifiesto p.js-split .w { color: #3c4347; transition: color .35s ease-out; }
.manifiesto p.js-split .w.lit { color: var(--gris-2); }
.manifiesto p.js-split strong .w { color: #4a3326; }
.manifiesto p.js-split strong .w.lit { color: var(--crema); }

/* ---------- carrusel (vista "Todo") ---------- */
.carrusel {
  display: none;
  position: relative;
  overflow: hidden;
  padding-block: 1.5rem 2.5rem;
  mask-image: linear-gradient(to right, transparent 0%, black 7%, black 93%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 7%, black 93%, transparent 100%);
}
.carrusel.is-active { display: block; cursor: grab; }
.carrusel--dragging,
.carrusel--dragging * { cursor: grabbing !important; }
.carrusel--dragging { user-select: none; }

/* brasa atmosférica en la base */
.carrusel::after {
  content: "";
  position: absolute; bottom: 0; left: 0; right: 0; height: 5rem;
  background: radial-gradient(80% 100% at 50% 100%, rgba(75,12,0,.5), transparent);
  pointer-events: none; z-index: 1;
}

.carrusel__track {
  display: flex;
  gap: .9rem;
  width: max-content;
  will-change: transform;
  animation: carrusel-avanzar 70s linear infinite;
  /* contexto de apilamiento para que z-index de items funcione */
  isolation: isolate;
}

.carrusel:hover .carrusel__track,
.carrusel:focus-within .carrusel__track,
.carrusel--paused .carrusel__track {
  animation-play-state: paused;
}

@keyframes carrusel-avanzar {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.carrusel__item {
  flex: none;
  height: clamp(18rem, 38vh, 30rem);
  cursor: zoom-in;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--negro-3);
  background: var(--negro-2);
  padding: 0;
  display: block;
  transition: border-color .35s ease-out, box-shadow .35s ease-out;
  will-change: transform, opacity;
  transform-origin: center center;
}
.carrusel__item:hover {
  border-color: var(--rojo-borde);
  box-shadow: 0 0 28px rgba(75,12,0,.55);
}
.carrusel__item img {
  height: 100%;
  width: auto;
  display: block;
  transition: transform .7s ease-out, opacity .3s;
}
.carrusel__item:hover img {
  transform: scale(1.05);
  opacity: .84;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .anim { opacity: 1; transform: none; transition: none; }
  .pieza.anim img { transform: none; transition: none; }
  .btn, .pieza img { transition: none; }
  .header { transition: none; }
  .manifiesto p.js-split .w { color: var(--gris-2); transition: none; }
  .manifiesto p.js-split strong .w { color: var(--crema); }
  .carrusel__track { animation: none; }
  .carrusel__item img { transition: none; }
}