/* ════════════════════════════════════════════════════════════
   ADEV MEDIA GROUP · style.css · v4 (definitiva)
   Concepto: editorial global tipo Burson, con identidad ADEV.
   Paleta: blanco / negro #0A0A0A / rojo ADEV #D81645 (del logo).
   Tipografía: Lato. Imagen fotográfica protagonista.
   ════════════════════════════════════════════════════════════ */

/* Autoalojar Lato (recomendado en producción):
@font-face { font-family:"Lato"; src:url("images/fonts/lato-400.woff2") format("woff2"); font-weight:400; font-display:swap; }
@font-face { font-family:"Lato"; src:url("images/fonts/lato-700.woff2") format("woff2"); font-weight:700; font-display:swap; }
@font-face { font-family:"Lato"; src:url("images/fonts/lato-900.woff2") format("woff2"); font-weight:900; font-display:swap; }
*/

:root {
  --paper:   #FFFFFF;
  --paper-2: #F5F5F4;
  --ink:     #0A0A0A;
  --ink-70:  #3E3E3E;
  --ink-45:  #707070;
  --red:     #D81645;   /* rojo oficial del logotipo ADEV */
  --red-dk:  #B01138;
  --line:    rgba(10, 10, 10, 0.12);
  --line-inv:rgba(255, 255, 255, 0.16);

  --font: "Lato", "Helvetica Neue", Helvetica, "Segoe UI", Arial, sans-serif;
  --max-w: 1240px;
  --section-y: clamp(4.5rem, 9vw, 8rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 4.6rem;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 1rem); }
body {
  background: var(--paper); color: var(--ink);
  font-family: var(--font); font-size: 1.0625rem; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
ul, ol { list-style: none; }

.container { max-width: var(--max-w); margin-inline: auto; padding-inline: clamp(1.25rem, 4vw, 2.75rem); }
.section { padding-block: var(--section-y); }
.section--dark { background: var(--ink); color: var(--paper); padding-block: var(--section-y); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--red); color: var(--paper); padding: 0.6rem 1rem;
}
.skip-link:focus { left: 0; }

/* ── Sistema tipográfico ── */
.label {
  font-size: 0.74rem; font-weight: 900;
  letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--ink-45);
  display: flex; align-items: center; gap: 0.7rem;
  margin-bottom: 1.1rem;
}
.label::before { content: ""; width: 0.6rem; height: 0.6rem; background: var(--red); flex-shrink: 0; }
.label--inv { color: rgba(255, 255, 255, 0.6); }

.h2 {
  font-size: clamp(1.7rem, 3.6vw, 2.7rem);
  font-weight: 900; line-height: 1.12; letter-spacing: -0.018em;
  text-wrap: balance; max-width: 24ch;
}
.dot { color: var(--red); }

.section-head { margin-bottom: clamp(2.2rem, 5vw, 3.6rem); position: relative; }
.explore {
  display: inline-block; margin-top: 1.2rem;
  font-weight: 900; font-size: 0.92rem; letter-spacing: 0.06em;
  text-transform: uppercase; text-decoration: none; color: var(--red);
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s var(--ease);
}
.explore:hover, .explore:focus-visible { border-color: var(--red); }
.explore--inv { color: var(--paper); }
.explore--inv:hover { border-color: var(--paper); }

/* ════════ HEADER ════════ */
.site-header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; min-height: var(--header-h);
}
.brand { display: flex; align-items: center; text-decoration: none; }
.brand__img { height: 2.6rem; width: auto; }

.nav__panel { display: flex; align-items: center; gap: clamp(0.8rem, 2vw, 2rem); }
.nav__menu { display: flex; align-items: center; gap: 0.1rem; }
.nav__link {
  display: inline-block; padding: 0.55rem 0.85rem;
  text-decoration: none; color: var(--ink);
  font-size: 0.95rem; font-weight: 700;
  background: none; border: 0; font-family: inherit; cursor: pointer;
  position: relative; white-space: nowrap;
}
.nav__link::after {
  content: ""; position: absolute; left: 0.85rem; right: 0.85rem; bottom: 0.15rem;
  height: 2.5px; background: var(--red);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.22s var(--ease);
}
.nav__link:hover::after, .nav__link:focus-visible::after { transform: scaleX(1); }
.nav__link--cta {
  background: var(--red); color: var(--paper);
  padding: 0.6rem 1.3rem; margin-left: 0.5rem;
  transition: background 0.2s var(--ease);
}
.nav__link--cta::after { display: none; }
.nav__link--cta:hover, .nav__link--cta:focus-visible { background: var(--ink); }

.lang { display: flex; align-items: center; gap: 0.15rem; border-left: 1px solid var(--line); padding-left: clamp(0.6rem, 1.5vw, 1.2rem); }
.lang a {
  text-decoration: none; font-size: 0.78rem; font-weight: 900;
  letter-spacing: 0.06em; color: var(--ink-45); padding: 0.35rem 0.45rem;
}
.lang a:hover, .lang a[aria-current] { color: var(--red); }

/* Dropdown Servicios (escritorio) */
.nav__item--dropdown { position: relative; }
.chevron { font-size: 0.68em; display: inline-block; transition: transform 0.22s var(--ease); }
.nav__dropdown-btn[aria-expanded="true"] .chevron { transform: rotate(180deg); }
.dropdown {
  position: absolute; top: calc(100% + 0.7rem); left: 0; min-width: 270px;
  background: var(--paper); border-top: 3px solid var(--red);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.16);
  padding: 0.5rem 0;
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
}
.dropdown.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a {
  display: block; padding: 0.65rem 1.3rem; text-decoration: none;
  color: var(--ink-70); font-size: 0.94rem; font-weight: 700;
  transition: color 0.15s var(--ease), background 0.15s var(--ease);
}
.dropdown a:hover, .dropdown a:focus-visible { color: var(--red); background: var(--paper-2); }
.dropdown__all a { color: var(--red); border-top: 1px solid var(--line); margin-top: 0.4rem; }

/* Hamburguesa */
.nav__toggle { display: none; background: none; border: 0; cursor: pointer; padding: 0.5rem; z-index: 95; }
.nav__toggle span {
  display: block; width: 26px; height: 3px; background: var(--ink);
  margin: 5px 0; transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ════════ HERO ════════ */
.hero {
  position: relative; min-height: calc(100svh - var(--header-h));
  display: flex; align-items: center;
  color: var(--paper); overflow: hidden;
  background: var(--ink);
}
.hero__media { position: absolute; inset: 0; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; }
.hero__media::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(75deg, rgba(0, 0, 0, 0.82) 15%, rgba(0, 0, 0, 0.45) 55%, rgba(0, 0, 0, 0.25) 100%),
    linear-gradient(to top, rgba(0, 0, 0, 0.55), transparent 40%);
}
.hero__content { position: relative; padding-block: clamp(4rem, 10vw, 7rem); }
.hero__title {
  font-weight: 900;
  font-size: clamp(2.9rem, 9vw, 6.8rem);
  line-height: 1.02; letter-spacing: -0.03em;
  margin-bottom: 1.6rem;
}
.hero__title .line { display: block; }
.hero__title .line--red { color: var(--red); }
.hero__subtitle {
  font-size: clamp(1.05rem, 1.9vw, 1.3rem);
  color: rgba(255, 255, 255, 0.85);
  max-width: 48ch; margin-bottom: 2.4rem;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; }
.hero__scroll {
  position: absolute; bottom: 1.6rem; left: 50%; transform: translateX(-50%);
  color: var(--paper); text-decoration: none; font-size: 1.4rem;
  animation: bob 2.2s ease-in-out infinite;
}
@keyframes bob { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 8px); } }

.btn {
  display: inline-block; padding: 0.95rem 2rem;
  text-decoration: none; font-weight: 900; font-size: 0.9rem;
  letter-spacing: 0.09em; text-transform: uppercase;
  border: 2px solid transparent; cursor: pointer; font-family: inherit;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.btn--red { background: var(--red); color: var(--paper); }
.btn--red:hover, .btn--red:focus-visible { background: var(--paper); color: var(--ink); }
.btn--ghost { border-color: rgba(255, 255, 255, 0.55); color: var(--paper); }
.btn--ghost:hover, .btn--ghost:focus-visible { background: var(--paper); border-color: var(--paper); color: var(--ink); }
.btn--lg { padding: 1.05rem 2.4rem; margin-top: 1.6rem; }

/* ════════ MANIFIESTO ════════ */
.manifest__statement {
  font-size: clamp(1.5rem, 3.4vw, 2.5rem);
  font-weight: 400; line-height: 1.32; letter-spacing: -0.012em;
  max-width: 26ch; color: var(--ink-70);
  margin-bottom: clamp(2.4rem, 5vw, 4rem);
  text-wrap: balance;
}
.manifest__statement strong { font-weight: 900; color: var(--ink); }
.values {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: clamp(1.4rem, 3vw, 2.4rem);
  border-top: 1px solid var(--line); padding-top: clamp(1.6rem, 3vw, 2.4rem);
}
.values h3 {
  font-size: 1.05rem; font-weight: 900; margin-bottom: 0.35rem;
  padding-left: 0.85rem; border-left: 3px solid var(--red);
}
.values p { font-size: 0.94rem; color: var(--ink-45); }

/* ════════ SERVICIOS ════════ */
.services { background: var(--paper-2); }
.services__grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1.3rem;
}
.svc a {
  display: flex; flex-direction: column; height: 100%;
  background: var(--paper); text-decoration: none;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease);
}
.svc a:hover, .svc a:focus-visible {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(10, 10, 10, 0.12);
}
.svc__media { display: block; aspect-ratio: 16 / 10; overflow: hidden; }
.svc__media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.svc a:hover .svc__media img { transform: scale(1.05); }
.svc h3 {
  font-size: 1.14rem; font-weight: 900; letter-spacing: -0.01em;
  padding: 1.15rem 1.25rem 0.35rem;
}
.svc p { font-size: 0.92rem; color: var(--ink-70); padding: 0 1.25rem; flex-grow: 1; }
.svc__cta {
  display: inline-block; padding: 1rem 1.25rem 1.25rem;
  font-size: 0.8rem; font-weight: 900; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--red);
}

/* ════════ CASOS ════════ */
.cases__grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1.3rem;
}
.case a {
  display: flex; flex-direction: column; height: 100%;
  text-decoration: none; background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-inv);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.case a:hover, .case a:focus-visible { border-color: var(--red); background: rgba(255, 255, 255, 0.07); }
.case__media { display: block; aspect-ratio: 16 / 10; overflow: hidden; }
.case__media img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(0.25);
  transition: transform 0.5s var(--ease), filter 0.4s var(--ease);
}
.case a:hover .case__media img { transform: scale(1.05); filter: none; }
.case__body { display: block; padding: 1.15rem 1.25rem 1.4rem; }
.case__meta {
  display: block; font-size: 0.72rem; font-weight: 900;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--red); margin-bottom: 0.5rem;
}
.case h3 { font-size: 1.06rem; font-weight: 700; line-height: 1.4; color: var(--paper); }

/* ════════ PRESENCIA ════════ */
.reach__regions {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.4rem, 3vw, 2.6rem);
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.reach__regions h3 {
  font-size: 1.08rem; font-weight: 900; margin-bottom: 0.35rem;
  padding-left: 0.85rem; border-left: 3px solid var(--red);
}
.reach__regions p { font-size: 0.95rem; color: var(--ink-70); }

.cities { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; }
.city { position: relative; aspect-ratio: 3 / 4; overflow: hidden; background: var(--ink); }
.city img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(1) contrast(1.05);
  transition: filter 0.4s var(--ease), transform 0.5s var(--ease);
}
.city:hover img { filter: none; transform: scale(1.04); }
.city span {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 2rem 0.9rem 0.9rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.78), transparent);
  color: var(--paper); font-weight: 900; font-size: 0.95rem; letter-spacing: 0.02em;
  display: flex; align-items: center; gap: 0.5rem;
}
.hq {
  font-style: normal; font-size: 0.6rem; font-weight: 900; letter-spacing: 0.12em;
  background: var(--red); color: var(--paper); padding: 0.16rem 0.4rem;
}

/* ════════ CLIENTES ════════ */
.clients__grid {
  display: grid; grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--line); border-left: 1px solid var(--line);
}
.ctile {
  border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  min-height: 118px; display: grid; place-items: center; padding: 1.3rem;
  transition: background 0.25s var(--ease);
}
.ctile:hover { background: var(--paper-2); }
.ctile a { display: grid; place-items: center; width: 100%; height: 100%; }
.ctile img {
  max-height: 52px; max-width: 82%; width: auto; object-fit: contain;
  filter: grayscale(1); opacity: 0.72;
  transition: filter 0.3s var(--ease), opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.ctile:hover img { filter: none; opacity: 1; transform: scale(1.04); }

/* ════════ FAQ ════════ */
.faq .split {
  display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.6fr);
  gap: clamp(1.8rem, 5vw, 5rem); align-items: start;
}
.faq__item { border-bottom: 1px solid var(--line); }
.faq__item:first-of-type { border-top: 2px solid var(--ink); }
.faq__item summary {
  list-style: none; cursor: pointer; padding: 1.35rem 0;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+"; color: var(--red); font-size: 1.8rem; line-height: 1;
  transition: transform 0.3s var(--ease); flex-shrink: 0;
}
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item h3 { font-size: 1.1rem; font-weight: 900; }
.faq__item p { padding: 0 0 1.5rem; color: var(--ink-70); max-width: 65ch; }
.faq__item summary:hover h3 { color: var(--red); }

/* ════════ CTA CONTACTO ════════ */
.cta__grid {
  display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem); align-items: center;
}
.cta__title {
  font-size: clamp(2.2rem, 5.5vw, 4.2rem);
  font-weight: 900; line-height: 1.05; letter-spacing: -0.025em;
}
.cta__data { font-style: normal; display: grid; gap: 1.15rem; }
.cta__label {
  display: block; font-size: 0.72rem; font-weight: 900;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5); margin-bottom: 0.1rem;
}
.cta__data a { color: var(--paper); text-decoration: none; font-weight: 700; }
.cta__data a:hover { color: var(--red); }
.social { display: flex; gap: 1.2rem; margin-top: 0.4rem; }
.social a {
  font-size: 0.82rem; font-weight: 900; letter-spacing: 0.08em;
  text-transform: uppercase; text-decoration: none;
  color: rgba(255, 255, 255, 0.7);
  border-bottom: 2px solid var(--red);
  padding-bottom: 0.15rem;
}
.social a:hover { color: var(--paper); }

/* ════════ FOOTER ════════ */
.site-footer { background: #101010; color: rgba(255, 255, 255, 0.75); }
.footer__grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: clamp(1.8rem, 4vw, 3.5rem);
  padding-block: clamp(2.5rem, 5vw, 4rem);
}
.footer__logo { height: 2.4rem; width: auto; filter: brightness(0) invert(1); margin-bottom: 1rem; }
.footer__col--brand p { font-size: 0.92rem; max-width: 34ch; color: rgba(255, 255, 255, 0.55); }
.footer__col h4 {
  font-size: 0.74rem; font-weight: 900; letter-spacing: 0.24em;
  text-transform: uppercase; color: var(--paper); margin-bottom: 0.9rem;
}
.footer__col a {
  display: block; text-decoration: none; font-size: 0.93rem;
  color: rgba(255, 255, 255, 0.62); padding-block: 0.28rem;
}
.footer__col a:hover { color: var(--red); }
.footer__base {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.8rem;
  border-top: 1px solid var(--line-inv);
  padding-block: 1.3rem; font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.45);
}
.footer__base a { color: inherit; text-decoration: none; }
.footer__base a:hover { color: var(--paper); }

/* ════════ ANIMACIONES DE ENTRADA ════════ */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.65s var(--ease), transform 0.65s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ════════ RESPONSIVE ════════ */
@media (max-width: 1080px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .cases__grid { grid-template-columns: repeat(2, 1fr); }
  .clients__grid { grid-template-columns: repeat(4, 1fr); }
  .cities { grid-template-columns: repeat(3, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  /* Navegación móvil: panel completo, targets grandes y claros */
  .nav__toggle { display: block; }
  .nav__panel {
    position: fixed; inset: var(--header-h) 0 0 0;
    background: var(--paper);
    flex-direction: column; align-items: stretch; justify-content: flex-start;
    gap: 0; padding: 1rem clamp(1.25rem, 5vw, 2rem) 2.5rem;
    overflow-y: auto;
    display: none;
  }
  .nav__panel.is-open { display: flex; }
  .nav__menu { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__link {
    width: 100%; text-align: left;
    font-size: 1.2rem; padding: 1rem 0.25rem;
    border-bottom: 1px solid var(--line);
  }
  .nav__link::after { display: none; }
  .nav__dropdown-btn { display: flex; justify-content: space-between; align-items: center; }
  .nav__link--cta {
    margin: 1.2rem 0 0; text-align: center; border-bottom: 0;
    font-size: 1.05rem; padding: 1rem;
  }
  .dropdown {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border-top: 0; padding: 0 0 0 1rem; display: none;
  }
  .dropdown.is-open { display: block; }
  .dropdown a { padding: 0.8rem 0.25rem; font-size: 1.02rem; border-bottom: 1px solid var(--line); }
  .lang {
    border-left: 0; padding-left: 0; margin-top: 1.4rem;
    justify-content: center; gap: 1rem;
  }
  .lang a { font-size: 0.95rem; padding: 0.5rem 0.7rem; border: 1px solid var(--line); }

  .manifest__statement { max-width: none; }
  .values { grid-template-columns: repeat(2, 1fr); }
  .reach__regions { grid-template-columns: 1fr; }
  .cta__grid { grid-template-columns: 1fr; }
  .faq .split { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .services__grid, .cases__grid { grid-template-columns: 1fr; }
  .clients__grid { grid-template-columns: repeat(2, 1fr); }
  .cities { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__title { font-size: clamp(2.6rem, 13vw, 3.4rem); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}