/* ============================================================
   TATUAJES CON ISVI — estilos
   Estética: editorial, blanco y negro, tipografía grande.
   ============================================================ */

:root {
  --negro: #0a0a0a;
  --gris-oscuro: #161616;
  --gris: #6b6b6b;
  --gris-claro: #e9e7e3;
  --crema: #f4f2ee;
  --blanco: #ffffff;
  --fuente: 'Archivo', -apple-system, sans-serif;
  --fuente-display: 'Archivo Black', 'Archivo', sans-serif;
  --pad: clamp(1.25rem, 5vw, 5rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--fuente);
  background: var(--crema);
  color: var(--negro);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--fuente-display); font-weight: 400; line-height: 1; letter-spacing: -0.02em; }
h2 { font-size: clamp(2.2rem, 6vw, 4.5rem); text-transform: uppercase; }

/* ===== Utilidades ===== */
.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;
}

/* ===== Botones (efecto cristal / glassmorphism) ===== */
.btn {
  position: relative;
  display: inline-block;
  padding: 0.95rem 2.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.20), rgba(255, 255, 255, 0.07));
  color: var(--blanco);
  cursor: pointer;
  text-align: center;
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  box-shadow:
    inset 0 1px 1px rgba(255, 255, 255, 0.40),
    inset 0 -1px 1px rgba(0, 0, 0, 0.10),
    0 10px 30px rgba(0, 0, 0, 0.18);
  transition:
    background 0.35s ease,
    transform 0.3s ease,
    box-shadow 0.35s ease,
    color 0.35s ease,
    letter-spacing 0.35s ease,
    border-color 0.35s ease;
}
.btn:hover {
  transform: translateY(-2px) scale(1.02);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.34), rgba(255, 255, 255, 0.16));
  letter-spacing: 0.18em;
  box-shadow:
    inset 0 1px 1px rgba(255, 255, 255, 0.55),
    inset 0 -1px 1px rgba(0, 0, 0, 0.10),
    0 16px 40px rgba(0, 0, 0, 0.26);
}
.btn:active { transform: translateY(0) scale(0.98); }

/* cristal claro (sobre fotos y fondos oscuros) */
.btn--light, .btn--ghost { color: var(--blanco); }
.btn--ghost {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.03));
  border-color: rgba(255, 255, 255, 0.30);
}
.btn--ghost:hover {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0.10));
  border-color: rgba(255, 255, 255, 0.5);
}

/* botones con icono */
.btn--icono {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
}
.btn--icono svg { width: 21px; height: 21px; flex-shrink: 0; }
.btn--redondo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  padding: 0;
  border-radius: 50%;
}
.btn--redondo svg { width: 24px; height: 24px; }

/* cristal oscuro (sobre fondos claros) */
.btn--dark {
  color: var(--negro);
  border-color: rgba(0, 0, 0, 0.30);
  background: linear-gradient(180deg, rgba(10, 10, 10, 0.10), rgba(10, 10, 10, 0.04));
  box-shadow:
    inset 0 1px 1px rgba(255, 255, 255, 0.55),
    inset 0 -1px 1px rgba(0, 0, 0, 0.08),
    0 10px 26px rgba(0, 0, 0, 0.14);
}
.btn--dark:hover {
  background: linear-gradient(180deg, rgba(10, 10, 10, 0.20), rgba(10, 10, 10, 0.10));
  border-color: rgba(0, 0, 0, 0.45);
}
.btn--small { padding: 0.55rem 1.3rem; font-size: 0.72rem; }
.btn--big { padding: 1.1rem 2.6rem; font-size: 0.95rem; }

/* ===== Navegacion ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem var(--pad);
  background: linear-gradient(180deg, rgba(18, 18, 18, 0.55), rgba(10, 10, 10, 0.30));
  backdrop-filter: blur(18px) saturate(1.3);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  color: var(--blanco);
}
.nav__logo { font-family: var(--fuente-display); font-size: 1.4rem; letter-spacing: 0.05em; }
.nav__logo span { color: var(--gris); }
.nav__links { display: flex; gap: 2rem; align-items: center; }
.nav__links a {
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.8;
  transition: opacity 0.2s;
}
.nav__links a:hover { opacity: 1; }
.nav__cta { color: var(--blanco); }
.nav__cta-mobile { display: none; }
.nav__burger { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.nav__burger span { display: block; width: 24px; height: 2px; background: var(--blanco); margin: 5px 0; transition: 0.3s; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  color: var(--blanco);
  overflow: hidden;
  background: var(--negro);
}
.hero__bg { position: absolute; inset: 0; }
.hero__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.02);
  animation: heroZoom 2.2s cubic-bezier(0.2, 0.7, 0.3, 1) both;
}
@keyframes heroZoom {
  from { transform: scale(1.06); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.hero::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 45%;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.65));
  z-index: 1;
}
.hero__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 100svh;
  width: 100%;
  padding: 7rem var(--pad) 5.5rem;
}
.hero__kicker {
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.45);
  animation: fadeUp 0.9s ease 0.4s both;
}
.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; animation: fadeUp 0.9s ease 0.8s both; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Nombre ISVI animado sobre el hero (clic = bio) */
.hero__isvi {
  position: absolute;
  z-index: 3;
  left: 24%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem 1.5rem 2.2rem;
}
@media (max-width: 900px) {
  .hero__isvi { left: 50%; }
}
.hero__isvi-sobre {
  display: block;
  width: 100%;
  text-align: justify;
  text-align-last: justify;
  font-size: clamp(0.72rem, 1.6vw, 1.05rem);
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--blanco);
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.5);
  margin-bottom: 0.5rem;
  opacity: 0;
  animation: hintIn 0.9s ease 0.6s forwards;
}
.hero__isvi-nombre {
  display: block;
  white-space: nowrap;
  font-family: var(--fuente-display);
  font-size: clamp(4rem, 14vw, 12rem);
  line-height: 1;
  color: var(--blanco);
  letter-spacing: 0.04em;
  text-shadow: 0 4px 40px rgba(0, 0, 0, 0.35);
}
.hero__isvi-nombre i {
  display: inline-block;
  font-style: normal;
  opacity: 0;
  transform: translateY(60px) rotate(8deg) scale(0.85);
  animation: letraIn 0.85s cubic-bezier(0.22, 1.35, 0.32, 1) forwards;
}
.hero__isvi-nombre i:nth-child(1) { animation-delay: 0.9s; }
.hero__isvi-nombre i:nth-child(2) { animation-delay: 1.05s; }
.hero__isvi-nombre i:nth-child(3) { animation-delay: 1.2s; }
.hero__isvi-nombre i:nth-child(4) { animation-delay: 1.35s; }
@keyframes letraIn {
  to { opacity: 1; transform: translateY(0) rotate(0) scale(1); }
}
.hero__isvi::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 1.7rem;
  transform: translateX(-50%) scaleX(0);
  width: 62%;
  height: 2px;
  background: var(--blanco);
  transition: transform 0.4s cubic-bezier(0.77, 0, 0.18, 1);
}
.hero__isvi:hover::after { transform: translateX(-50%) scaleX(1); }
.hero__isvi-hint {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  font-size: 0.68rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--blanco);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.5);
  white-space: nowrap;
  opacity: 0;
  animation: hintIn 0.8s ease 1.9s forwards, hintPulse 2.6s ease-in-out 2.8s infinite;
  pointer-events: none;
}
@keyframes hintIn {
  to { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .hero__isvi-nombre i { opacity: 1; transform: none; animation: none; }
  .hero__isvi-hint { opacity: 1; animation: none; }
}
@keyframes hintPulse {
  0%, 100% { opacity: 0.35; }
  50% { opacity: 1; }
}

/* ===== Tarjeta bio de Isvi ===== */
.bio {
  position: fixed;
  inset: 0;
  z-index: 220;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background: rgba(8, 8, 8, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.bio.abierto { opacity: 1; visibility: visible; }
.bio__card {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  max-width: 820px;
  width: 100%;
  max-height: 88vh;
  background: var(--crema);
  color: var(--negro);
  overflow: hidden;
  position: relative;
  transform: translateY(40px) scale(0.97);
  transition: transform 0.5s cubic-bezier(0.2, 0.9, 0.25, 1);
}
.bio.abierto .bio__card { transform: translateY(0) scale(1); }
.bio__photo { overflow: hidden; }
.bio__photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(1);
  transition: filter 0.6s ease;
}
.bio__card:hover .bio__photo img { filter: grayscale(0.35); }
.bio__text { padding: clamp(1.5rem, 4vw, 2.8rem); display: flex; flex-direction: column; justify-content: center; overflow-y: auto; }
.bio__kicker { font-size: 0.7rem; letter-spacing: 0.35em; color: var(--gris); margin-bottom: 0.8rem; }
.bio__text h3 { font-family: var(--fuente-display); font-size: clamp(1.6rem, 3.5vw, 2.3rem); margin-bottom: 1rem; }
.bio__text p { color: var(--gris); font-size: 0.95rem; margin-bottom: 1rem; }
.bio__text .btn { align-self: flex-start; margin-top: 0.5rem; }
.bio__close {
  position: absolute;
  top: 0.6rem; right: 0.9rem;
  z-index: 2;
  background: none;
  border: none;
  font-size: 2.2rem;
  line-height: 1;
  color: var(--negro);
  cursor: pointer;
  transition: transform 0.3s ease;
}
.bio__close:hover { transform: rotate(90deg); }

/* ===== Animaciones al hacer scroll ===== */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.2, 0.7, 0.3, 1);
  transition-delay: var(--reveal-delay, 0s);
}
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__bg img { animation: none; }
}
.hero__scroll {
  position: absolute;
  bottom: 2rem; right: var(--pad);
  z-index: 2;
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  opacity: 0.6;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* ===== Franja de estilos ===== */
.styles-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--negro);
  color: var(--blanco);
  gap: 1px;
}
.styles-strip__item {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 2rem var(--pad);
  background: var(--gris-oscuro);
  transition: background 0.25s;
}
.styles-strip__item:hover { background: #222; }
.styles-strip__item img {
  width: 72px; height: 72px;
  object-fit: cover;
  filter: grayscale(1);
  border-radius: 50%;
}
.styles-strip__item h3 {
  font-size: 1.05rem;
  margin-bottom: 0.2rem;
  display: flex;
  align-items: center;
  gap: 0.55rem;
}
.styles-strip__icono { width: 21px; height: 21px; flex-shrink: 0; opacity: 0.9; }
.styles-strip__item:hover .styles-strip__icono { opacity: 1; }
.styles-strip__item p { font-size: 0.8rem; opacity: 0.6; }

/* ===== Secciones de trabajo ===== */
.work { padding: clamp(4rem, 9vw, 8rem) var(--pad); }
.work--dark { background: var(--negro); color: var(--blanco); }
.work__head { max-width: 720px; margin-bottom: 3rem; }
.work__head h2 { margin-bottom: 1rem; position: relative; display: inline-block; }

/* Palabra manuscrita cruzada sobre el título (estilo firma) */
.titulo-script {
  position: absolute;
  left: 50%;
  top: 78%;
  transform: translate(-50%, -40%) rotate(-6deg);
  font-family: 'Mrs Saint Delafield', cursive;
  font-size: clamp(3.4rem, 10vw, 7.5rem);
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0.02em;
  line-height: 1;
  color: #fff;
  mix-blend-mode: difference;
  -webkit-text-stroke: 0.6px #fff;
  pointer-events: none;
  white-space: nowrap;
  user-select: none;
}
.work__head p { color: var(--gris); font-size: 1.05rem; }
.work--dark .work__head p, .designs .work__head p { color: #9a9a9a; }
.work__cta {
  display: inline-block;
  margin-top: 2.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-bottom: 1px solid currentColor;
  padding-bottom: 0.3rem;
  transition: opacity 0.2s;
}
.work__cta:hover { opacity: 0.6; }

/* ===== Galerias ===== */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}
.gallery figure {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  cursor: zoom-in;
  background: var(--gris-claro);
}
.work--dark .gallery figure { background: var(--gris-oscuro); }
.gallery img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(1);
  transition: transform 0.5s ease, filter 0.4s ease;
}
.gallery figure:hover img { transform: scale(1.04); filter: grayscale(0.3); }
.gallery figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 2.2rem 1rem 0.8rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blanco);
  background: linear-gradient(transparent, rgba(0,0,0,0.75));
  opacity: 0;
  transition: opacity 0.3s;
}
.gallery figure:hover figcaption { opacity: 1; }
.gallery__empty { grid-column: 1 / -1; padding: 3rem 1rem; text-align: center; color: var(--gris); font-size: 0.9rem; border: 1px dashed var(--gris); }

/* ===== Banner de estilo (video + título botón) ===== */
.estilo-banner {
  position: relative;
  height: clamp(420px, 78vh, 780px);
  overflow: hidden;
  background: var(--negro);
}
.estilo-banner__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05) brightness(0.72);
}
.estilo-banner__btn {
  position: absolute;
  inset: 0;
  width: 100%;
  background: linear-gradient(rgba(0, 0, 0, 0.12), rgba(0, 0, 0, 0.25));
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  color: var(--blanco);
  transition: background 0.4s ease;
}
.estilo-banner__btn:hover { background: linear-gradient(rgba(0, 0, 0, 0.02), rgba(0, 0, 0, 0.15)); }
.estilo-banner__titulo {
  position: relative;
  font-family: var(--fuente-display);
  font-size: clamp(3rem, 10vw, 8rem);
  line-height: 1;
  letter-spacing: 0.03em;
  text-shadow: 0 4px 44px rgba(0, 0, 0, 0.45);
  transition: transform 0.45s cubic-bezier(0.22, 1.2, 0.32, 1), letter-spacing 0.45s ease;
}
.estilo-banner__btn:hover .estilo-banner__titulo { transform: scale(1.045); letter-spacing: 0.06em; }
.estilo-banner__titulo::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -0.18em;
  transform: translateX(-50%) scaleX(0);
  width: 70%;
  height: 3px;
  background: var(--blanco);
  transition: transform 0.4s cubic-bezier(0.77, 0, 0.18, 1);
}
.estilo-banner__btn:hover .estilo-banner__titulo::after { transform: translateX(-50%) scaleX(1); }
.estilo-banner__hint {
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.5);
  animation: hintPulse 2.6s ease-in-out 1s infinite both;
}

/* ===== Visor carrusel (foto grande, fondo desenfocado) ===== */
.visor {
  position: fixed;
  inset: 0;
  z-index: 210;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.6rem, 2vw, 1.8rem);
  padding: 3.5rem clamp(0.75rem, 3vw, 2.5rem) 5rem;
  background: rgba(6, 6, 6, 0.82);
  backdrop-filter: blur(20px) saturate(1.1);
  -webkit-backdrop-filter: blur(20px) saturate(1.1);
  color: var(--blanco);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.visor.abierto { opacity: 1; visibility: visible; }
.visor__marco {
  max-width: min(860px, 78vw);
  max-height: 82vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.visor__img {
  max-width: 100%;
  max-height: 82vh;
  object-fit: contain;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.6);
  opacity: 1;
  transform: scale(1);
  transition: opacity 0.28s ease, transform 0.28s ease;
}
.visor__img.cambiando { opacity: 0; transform: scale(0.97); }
.visor__flecha { flex-shrink: 0; }
.visor__close {
  position: absolute;
  top: 1rem;
  right: 1.4rem;
  z-index: 2;
  background: none;
  border: none;
  color: var(--blanco);
  font-size: 2.6rem;
  line-height: 1;
  cursor: pointer;
  transition: transform 0.3s ease;
}
.visor__close:hover { transform: rotate(90deg); }
.visor__pie {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.8rem;
  flex-wrap: wrap;
}
.visor__titulo {
  font-family: var(--fuente-display);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
}
.visor__contador {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.65);
  font-variant-numeric: tabular-nums;
}
.visor__cta {
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-bottom: 1px solid currentColor;
  padding-bottom: 0.15rem;
  transition: opacity 0.2s;
}
.visor__cta:hover { opacity: 0.6; }
@media (max-width: 760px) {
  .visor { padding: 3rem 0.5rem 9.5rem; gap: 0.4rem; }
  .visor__marco { max-width: 96vw; }
  .visor__img { max-height: 62vh; }
  .visor__flecha { position: absolute; bottom: 6.2rem; z-index: 2; }
  .visor__flecha--prev { left: 16%; }
  .visor__flecha--next { right: 16%; }
  .visor__pie {
    bottom: 0.9rem;
    flex-direction: column;
    gap: 0.45rem;
    padding: 0 1rem;
    text-align: center;
  }
  .visor__titulo { font-size: 0.78rem; letter-spacing: 0.12em; }
}

/* ===== Slider de galería ===== */
.slider { position: relative; }
.slider__track {
  display: flex;
  gap: 1.1rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  perspective: 1200px;
  padding: 2rem 0.5rem 2.5rem;
  cursor: grab;
}
.slider__track::-webkit-scrollbar { display: none; }
.slider__track.arrastrando { cursor: grabbing; scroll-snap-type: none; scroll-behavior: auto; }
.slider__slide {
  flex: 0 0 auto;
  height: clamp(340px, 58vh, 620px);
  scroll-snap-align: start;
  overflow: hidden;
  border-radius: 18px;
  background: var(--gris-claro);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
  cursor: zoom-in;
  /* estado inicial: cayendo con giro 3D */
  opacity: 0;
  transform: translateY(110px) rotate(calc(var(--tilt, 2deg) * 3)) rotateX(32deg) scale(0.88);
  transition:
    opacity 0.7s ease,
    transform 0.9s cubic-bezier(0.22, 1.4, 0.32, 1),
    box-shadow 0.4s ease;
  transition-delay: var(--reveal-delay, 0s);
  will-change: transform;
}
.slider__slide.visible {
  opacity: 1;
  transform: translateY(0) rotate(var(--tilt, 0deg)) rotateX(0) scale(1);
}
.slider__slide:hover {
  transform: translateY(-8px) rotate(0deg) rotateX(0) scale(1.03);
  transition-delay: 0s;
  transition-duration: 0.45s;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.4);
  z-index: 2;
}
.slider__slide img {
  height: 100%;
  width: auto;
  max-width: 88vw;
  object-fit: cover;
  display: block;
  filter: grayscale(1);
  transition: filter 0.4s ease;
}
.slider__slide:hover img { filter: grayscale(0); }
@media (prefers-reduced-motion: reduce) {
  .slider__slide { opacity: 1; transform: rotate(var(--tilt, 0deg)); transition: none; }
}
.slider__controls {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-top: 1.4rem;
}
.slider__arrow {
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.35);
  background: linear-gradient(180deg, rgba(10, 10, 10, 0.08), rgba(10, 10, 10, 0.03));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.5), 0 6px 18px rgba(0, 0, 0, 0.12);
  color: var(--negro);
  font-size: 1.2rem;
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease, transform 0.3s ease;
}
.slider__arrow:hover { background: var(--negro); color: var(--blanco); transform: scale(1.08); }
.slider__arrow:active { transform: scale(0.95); }
.slider__counter {
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--gris);
  min-width: 70px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.work--dark .slider__slide { background: var(--gris-oscuro); }
.work--dark .slider__arrow, .proceso .slider__arrow, .visor .slider__arrow {
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--blanco);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.04));
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.25), 0 6px 18px rgba(0, 0, 0, 0.3);
}
.work--dark .slider__arrow:hover, .proceso .slider__arrow:hover, .visor .slider__arrow:hover { background: var(--blanco); color: var(--negro); }
@media (max-width: 760px) {
  .slider__slide { height: clamp(280px, 48vh, 420px); }
  .slider__arrow { width: 46px; height: 46px; }
}

/* ===== Disenos disponibles ===== */
.designs { background: var(--gris-oscuro); color: var(--blanco); padding: clamp(4rem, 9vw, 8rem) var(--pad); }
.designs__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}
.design-card { background: var(--negro); display: flex; flex-direction: column; }
.design-card__img { aspect-ratio: 3 / 4; overflow: hidden; cursor: zoom-in; }
.design-card__img img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(1);
  transition: transform 0.5s ease;
}
.design-card:hover .design-card__img img { transform: scale(1.05); }
.design-card__body { padding: 1.2rem; display: flex; flex-direction: column; gap: 0.4rem; flex: 1; }
.design-card__body h3 { font-size: 1rem; }
.design-card__meta { font-size: 0.78rem; color: #9a9a9a; letter-spacing: 0.08em; text-transform: uppercase; }
.design-card__price { font-size: 0.95rem; font-weight: 500; }
.design-card__btn {
  margin-top: auto;
  padding-top: 0.8rem;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--blanco);
  align-self: flex-start;
  padding-bottom: 0.2rem;
  transition: opacity 0.2s;
}
.design-card__btn:hover { opacity: 0.6; }
.design-card--apartado .design-card__img img { opacity: 0.35; }
.design-card__tag {
  position: absolute;
  background: var(--blanco);
  color: var(--negro);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  margin: 1rem;
}

/* ===== Sobre Isvi ===== */
.about {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
  padding: clamp(4rem, 9vw, 8rem) var(--pad);
}
.about__photo img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: grayscale(1);
}
.about__kicker { font-size: 0.75rem; letter-spacing: 0.3em; color: var(--gris); margin-bottom: 1rem; }
.about__text h2 { margin-bottom: 1.5rem; }
.about__text p { color: var(--gris); margin-bottom: 1.2rem; max-width: 55ch; }
.about__text .btn { margin-top: 1rem; }

/* ===== Contacto ===== */
.contact {
  background: var(--negro);
  color: var(--blanco);
  padding: clamp(5rem, 10vw, 9rem) var(--pad);
  text-align: center;
}
.contact h2 { font-size: clamp(3rem, 9vw, 7rem); margin-bottom: 1.5rem; }
.contact__sub { max-width: 520px; margin: 0 auto 2.5rem; opacity: 0.75; font-weight: 300; }
.contact__actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-bottom: 4rem; }
.contact__info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 3rem;
  text-align: left;
}
.contact__info h4 {
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  color: #8a8a8a;
  margin-bottom: 0.6rem;
  font-weight: 500;
}
.contact__info p { font-size: 0.95rem; font-weight: 300; }
.contact__mapa { transition: opacity 0.2s; }
.contact__mapa:hover { opacity: 0.7; }

/* ===== El proceso — slider de videos con tarjetas flotantes ===== */
.proceso {
  background: var(--negro);
  color: var(--blanco);
  padding: clamp(4rem, 9vw, 8rem) var(--pad);
  overflow: hidden;
}
.proceso .work__head p { color: #9a9a9a; }
.vslider__track {
  perspective: 1200px;
  padding: 2.5rem 0.5rem 3rem;
  gap: 1.6rem;
}
.vcard {
  flex: 0 0 auto;
  width: clamp(230px, 26vw, 320px);
  aspect-ratio: 9 / 16;
  border-radius: 18px;
  overflow: hidden;
  scroll-snap-align: center;
  background: var(--gris-oscuro);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
  cursor: pointer;
  /* estado inicial: cayendo con giro 3D (como el pin de referencia) */
  opacity: 0;
  transform: translateY(110px) rotate(calc(var(--tilt) * 3)) rotateX(32deg) scale(0.88);
  transition:
    opacity 0.7s ease,
    transform 0.9s cubic-bezier(0.22, 1.4, 0.32, 1);
  transition-delay: var(--reveal-delay, 0s);
  will-change: transform;
}
.vcard.visible {
  opacity: 1;
  transform: translateY(0) rotate(var(--tilt)) rotateX(0) scale(1);
}
.vcard:hover {
  transform: translateY(-10px) rotate(0deg) rotateX(0) scale(1.04);
  transition-delay: 0s;
  transition-duration: 0.45s;
  box-shadow: 0 34px 80px rgba(0, 0, 0, 0.7);
  z-index: 2;
}
.vcard video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(0.85);
  transition: filter 0.5s ease;
}
.vcard:hover video { filter: grayscale(0); }
.vcard__num {
  position: absolute;
  top: 0.9rem;
  left: 1.1rem;
  font-family: var(--fuente-display);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--blanco);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6);
  opacity: 0.85;
}
.vcard { position: relative; }
@media (max-width: 760px) {
  .vcard { width: 72vw; }
  .vslider__track { padding-top: 1.5rem; }
}
@media (prefers-reduced-motion: reduce) {
  .vcard { opacity: 1; transform: rotate(var(--tilt)); transition: none; }
}

/* ===== Reseñas de Google ===== */
.reviews { padding: clamp(4rem, 9vw, 8rem) var(--pad); background: var(--gris-claro); }
.reviews__rating {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}
.g-logo { width: 28px; height: 28px; }
.reviews__stars { color: var(--negro); font-size: 1.25rem; letter-spacing: 0.2em; }
.reviews__count { font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gris); }
.reviews__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2rem;
  margin-bottom: 2.5rem;
}
.review-card {
  background: var(--blanco);
  padding: 1.6rem;
  border: 1px solid rgba(0, 0, 0, 0.07);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.review-card:hover { transform: translateY(-4px); box-shadow: 0 14px 34px rgba(0, 0, 0, 0.08); }
.review-card__head { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 0.9rem; }
.review-card__avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--negro);
  color: var(--blanco);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--fuente-display);
  font-size: 1.05rem;
  flex-shrink: 0;
}
.review-card__nombre { font-weight: 500; font-size: 0.95rem; }
.review-card__fecha { font-size: 0.75rem; color: var(--gris); }
.review-card__stars { color: #fbbc05; font-size: 0.95rem; letter-spacing: 0.15em; margin-bottom: 0.7rem; }
.review-card__texto { font-size: 0.92rem; color: #444; }
.reviews__actions { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
.review-card--resumen {
  background: var(--negro);
  color: var(--blanco);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.35rem;
}
.review-resumen__num { font-family: var(--fuente-display); font-size: 3.2rem; line-height: 1; }
.review-resumen__stars { color: #fbbc05; font-size: 1.1rem; letter-spacing: 0.18em; }
.review-resumen__texto { font-size: 0.82rem; color: #9a9a9a; max-width: 20ch; }
.review-resumen__link {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--blanco);
  padding-bottom: 0.15rem;
  transition: opacity 0.2s;
}
.review-resumen__link:hover { opacity: 0.6; }

/* ===== Botón flotante de WhatsApp ===== */
.wa-fab {
  position: fixed;
  right: clamp(0.9rem, 2.5vw, 1.4rem);
  bottom: clamp(4.4rem, 9vh, 5.5rem);
  z-index: 150;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(20, 20, 20, 0.72), rgba(10, 10, 10, 0.55));
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  color: var(--blanco);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    inset 0 1px 1px rgba(255, 255, 255, 0.35),
    inset 0 -1px 1px rgba(0, 0, 0, 0.3),
    0 10px 28px rgba(0, 0, 0, 0.35);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.35s ease;
}
.wa-fab:hover { background: linear-gradient(180deg, rgba(40, 40, 40, 0.85), rgba(15, 15, 15, 0.7)); }
.wa-fab svg { width: 25px; height: 25px; }
.wa-fab::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.45);
  animation: waPing 2.2s ease-out infinite;
}
@keyframes waPing {
  0% { transform: scale(1); opacity: 0.7; }
  75%, 100% { transform: scale(1.55); opacity: 0; }
}
.wa-fab:hover { transform: scale(1.1) rotate(8deg); }
@media (prefers-reduced-motion: reduce) { .wa-fab::before { animation: none; } }

/* ===== Footer ===== */
.footer {
  background: var(--negro);
  color: var(--blanco);
  padding: 2.5rem var(--pad);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer__logo { font-family: var(--fuente-display); font-size: 0.95rem; letter-spacing: 0.1em; }
.footer nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer nav a { font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.6; }
.footer nav a:hover { opacity: 1; }
.footer__copy { font-size: 0.72rem; opacity: 0.4; }

/* ===== Lightbox ===== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0.92);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.lightbox.abierto { display: flex; }
.lightbox img { max-width: 92vw; max-height: 88vh; object-fit: contain; }
.lightbox__close {
  position: absolute;
  top: 1rem; right: 1.5rem;
  background: none;
  border: none;
  color: var(--blanco);
  font-size: 2.5rem;
  cursor: pointer;
  line-height: 1;
}

/* ============================================================
   RESPONSIVE — celular
   ============================================================ */
@media (max-width: 900px) {
  .styles-strip { grid-template-columns: 1fr; }
  .about { grid-template-columns: 1fr; }
  .contact__info { grid-template-columns: 1fr; gap: 1.8rem; text-align: center; }
}

@media (max-width: 760px) {
  .nav__cta { display: none; }
  .nav__burger { display: block; }
  .nav__links {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: rgba(10,10,10,0.97);
    padding: 1.5rem var(--pad) 2rem;
    gap: 1.3rem;
    align-items: flex-start;
  }
  .nav__links.abierto { display: flex; }
  .nav__cta-mobile { display: inline-block; margin-top: 0.5rem; }
  .hero__actions .btn { width: 100%; }
  .bio__card { grid-template-columns: 1fr; max-width: 420px; }
  .bio__photo { max-height: 38vh; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .designs__grid { grid-template-columns: repeat(2, 1fr); gap: 0.8rem; }
  .design-card__body { padding: 0.9rem; }
  .footer { flex-direction: column; text-align: center; }
}

@media (max-width: 430px) {
  .gallery { grid-template-columns: 1fr 1fr; gap: 0.6rem; }
}