/* ============================================================
   THESIGN DEPOT — Identidad: Negro · Rojo #E8192C · Blanco
   Estética: diapositivas oscuras con patrones geométricos
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --red:    #E8192C;
  --red-d:  #c01020;
  --black:  #080808;
  --b1:     #0e0e0e;
  --b2:     #141414;
  --b3:     #1a1a1a;
  --b4:     #222222;
  --white:  #ffffff;
  --g1:     #cccccc;
  --g2:     #888888;
  --g3:     #444444;
  --border: rgba(255,255,255,.06);
  --nav-h:  96px;
  --ease:   cubic-bezier(.22,1,.36,1);
  --ease2:  cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--black);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
img { display: block; max-width: 100%; }

::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--red); border-radius: 2px; }

.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── PATRÓN HEXAGONAL (identidad de marca) ───────────────── */
.hex-mesh {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='100'%3E%3Cpath d='M28 66L0 50V16L28 0l28 16v34zm28 18l-28-16V34l28-16 28 16v34zM0 84l28 16 28-16V50L28 34 0 50z' fill='none' stroke='rgba(255%2C255%2C255%2C0.07)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 56px 100px;
  pointer-events: none;
}

/* ── REVEAL ANIMATIONS ───────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s var(--ease), transform .65s var(--ease);
  transition-delay: var(--d, 0s);
}
.fade-up.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .fade-up { opacity: 1; transform: none; transition: none; }
}

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 1.9rem;
  background: var(--red);
  color: var(--white);
  font-weight: 700;
  font-size: .9rem;
  letter-spacing: .02em;
  border-radius: 5px;
  border: 1px solid var(--red);
  transition: background .22s, transform .22s, box-shadow .22s;
}
.btn-primary:hover {
  background: #ff1f34;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(232,25,44,.3);
}
.btn-full { width: 100%; justify-content: center; border-radius: 6px; padding: 1rem; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 1.9rem;
  background: transparent;
  color: var(--g1);
  font-weight: 500;
  font-size: .9rem;
  border: 1px solid var(--g3);
  border-radius: 5px;
  transition: border-color .22s, color .22s, background .22s;
}
.btn-ghost:hover { border-color: var(--white); color: var(--white); background: rgba(255,255,255,.04); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 200;
  transition: background .35s, border-color .35s, backdrop-filter .35s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(8,8,8,.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.nav-logo { display: flex; align-items: center; overflow: visible; }
.nav-logo-img {
  height: 100px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,.4));
  transition: transform .25s;
}
.nav-logo:hover .nav-logo-img { transform: scale(1.04); }

.nav-links {
  display: flex;
  align-items: center;
  gap: .25rem;
}
.nl {
  padding: .45rem .9rem;
  font-size: .86rem;
  color: var(--g2);
  border-radius: 5px;
  transition: color .2s, background .2s;
  letter-spacing: .01em;
}
.nl:hover { color: var(--white); background: rgba(255,255,255,.05); }
.nl-cta {
  margin-left: .75rem;
  padding: .5rem 1.2rem;
  background: var(--red);
  color: var(--white);
  font-weight: 700;
  font-size: .86rem;
  border-radius: 5px;
  transition: background .2s, transform .2s;
}
.nl-cta:hover { background: #ff1f34; transform: translateY(-1px); }

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  border-radius: 5px;
}
.burger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform .28s var(--ease2), opacity .2s;
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  position: absolute;   /* sale del flujo del nav → no infla su altura */
  top: 100%;
  left: 0;
  right: 0;
  display: none;
  flex-direction: column;
  background: rgba(8,8,8,.97);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  padding: 1rem 2rem 1.5rem;
  gap: .2rem;
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity .28s var(--ease2), transform .28s var(--ease2);
}
.mobile-nav.open { opacity: 1; transform: none; pointer-events: auto; }
.mn-link {
  padding: .8rem 1rem;
  color: var(--g2);
  font-size: .95rem;
  border-radius: 5px;
  transition: color .2s, background .2s;
}
.mn-link:hover { color: var(--white); background: rgba(255,255,255,.04); }
.mn-cta {
  margin-top: .5rem;
  padding: .9rem 1rem;
  background: var(--red);
  color: var(--white);
  font-weight: 700;
  text-align: center;
  border-radius: 5px;
}
.mn-cta:hover { background: #ff1f34; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-h);
  background: var(--black);
  background-image: url('img/slide-pub.jpg');
  background-size: cover;
  background-position: 28% center;
}
/* Overlay con gradiente: tapa texto del slide arriba, deja edificios sutilmente visibles */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      to bottom,
      rgba(8,8,8,1)    0%,
      rgba(8,8,8,1)   22%,
      rgba(8,8,8,.88) 45%,
      rgba(8,8,8,.84) 75%,
      rgba(8,8,8,.92) 100%
    );
  pointer-events: none;
  z-index: 1;
}

/* Vignette radial en los bordes — sobre el overlay oscuro */
.hero-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 80% at 50% 50%, transparent 40%, rgba(8,8,8,.55) 100%);
  pointer-events: none;
  z-index: 2;
}

/* Glow rojo sutil */
.hero-glow {
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(232,25,44,.1) 0%, transparent 70%);
  top: 50%; left: 30%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 2;
  animation: glowPulse 6s ease-in-out infinite alternate;
}
@keyframes glowPulse {
  from { opacity: .7; transform: translate(-50%,-50%) scale(1); }
  to   { opacity: 1;  transform: translate(-50%,-50%) scale(1.15); }
}

.hero-layout {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding-top: 3rem;
  padding-bottom: 3rem;
  max-width: 760px;
}

/* Eyebrow */
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--g2);
  margin-bottom: 1.75rem;
}
.eyebrow-line {
  display: block;
  width: 28px; height: 2px;
  background: var(--red);
  border-radius: 1px;
}

/* Título hero */
.hero-h1 {
  font-family: 'Bebas Neue', 'Inter', sans-serif;
  font-size: clamp(4rem, 8.5vw, 7.5rem);
  font-weight: 400;
  line-height: .95;
  letter-spacing: .015em;
  color: var(--white);
  margin-bottom: 1.75rem;
}
.hero-h1-red { color: var(--red); }
.hero-h1-outline {
  -webkit-text-stroke: 2px rgba(255,255,255,.25);
  color: transparent;
}

.hero-p {
  font-size: 1rem;
  color: var(--g2);
  line-height: 1.75;
  max-width: 420px;
  margin-bottom: 2.25rem;
}

.hero-actions {
  display: flex;
  gap: .9rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

/* Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.hstat { display: flex; flex-direction: column; gap: .2rem; }
.hstat-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.6rem;
  line-height: 1;
  color: var(--white);
}
.hstat-plus { color: var(--red); font-size: 1.6rem; }
.hstat-prefix { color: var(--red); font-size: 1.6rem; margin-right: .1rem; }
.hstat-label { font-size: .68rem; color: var(--g2); letter-spacing: .12em; text-transform: uppercase; }
.hstat-sep { width: 1px; height: 40px; background: var(--border); }
.cn { font-family: 'Bebas Neue', sans-serif; font-size: 2.6rem; }

/* Columna derecha hero: showcase fotográfico */
.hero-img-col {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-showcase {
  position: relative;
  width: 100%;
  max-width: 520px;
  aspect-ratio: 4/3;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--b4);
  box-shadow: 0 40px 100px rgba(0,0,0,.7), 0 0 0 1px rgba(255,255,255,.04);
}

/* Patrón hex sobre la foto */
.hsc-hex {
  position: absolute;
  inset: 0;
  z-index: 2;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='100'%3E%3Cpath d='M28 66L0 50V16L28 0l28 16v34zm28 18l-28-16V34l28-16 28 16v34zM0 84l28 16 28-16V50L28 34 0 50z' fill='none' stroke='rgba(255%2C255%2C255%2C0.08)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 56px 100px;
  pointer-events: none;
}

.hsc-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  filter: brightness(0.75) saturate(0.85);
}

/* Gradiente oscuro sobre la foto */
.hsc-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg, rgba(8,8,8,.55) 0%, rgba(232,25,44,.08) 100%);
}

/* Pastilla inferior */
.hsc-badge {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .4rem 1rem;
  background: rgba(8,8,8,.75);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 100px;
  font-size: .72rem;
  font-weight: 500;
  color: var(--g1);
  letter-spacing: .05em;
}

.pill-dot {
  width: 6px; height: 6px;
  background: var(--red);
  border-radius: 50%;
  flex-shrink: 0;
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink {
  0%,100% { opacity: 1; }
  50%      { opacity: .3; }
}

/* Indicador scroll */
.scroll-ind {
  position: absolute;
  bottom: 2rem;
  left: 2rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .5rem;
  font-size: .65rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--g3);
  z-index: 2;
}
.scroll-bar {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--red), transparent);
  animation: scrollAnim 2.5s ease-in-out infinite;
}
@keyframes scrollAnim {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 0; }
  30%  { opacity: 1; }
  70%  { transform: scaleY(1); transform-origin: top; }
  71%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ============================================================
   SECCIÓN BASE
   ============================================================ */
.section {
  position: relative;
  padding: 7rem 0;
  overflow: hidden;
}
.sec-dark { background: var(--b1); }

/* Fondo fotográfico con overlay oscuro */
#servicios {
  background: var(--black);
}
#servicios::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('img/slide-lineas.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  z-index: 0;
}
#servicios .hex-mesh,
#servicios .container { position: relative; z-index: 1; }

#proceso {
  background: var(--b1);
}
#proceso::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('img/slide-stands.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.06;
  z-index: 0;
}
#proceso .hex-mesh,
#proceso .container { position: relative; z-index: 1; }

.sec-head { margin-bottom: 4rem; }
.sec-tag {
  display: inline-block;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: .9rem;
}
.sec-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.8rem, 5vw, 4.8rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--white);
}
.sec-title em {
  font-style: normal;
  color: var(--red);
}

/* ============================================================
   SERVICIOS
   ============================================================ */
.svc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--b4);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--b4);
}

/* Las últimas 2 cards (04 y 05) en segunda fila de 2 columnas */
.svc:nth-child(4) { grid-column: 1 / 2; }
.svc:nth-child(5) { grid-column: 2 / 4; }

.svc {
  position: relative;
  background: var(--b2);
  padding: 2.25rem 2rem;
  transition: background .25s;
  overflow: hidden;
}
.svc::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
.svc:hover { background: var(--b3); }
.svc:hover::before { transform: scaleX(1); }
.svc:hover .svc-link span { transform: translateX(4px); }

.svc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}
.svc-n {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3.5rem;
  color: rgba(255,255,255,.04);
  line-height: 1;
}
.svc-icon { color: var(--g3); transition: color .25s; }
.svc:hover .svc-icon { color: var(--red); }

.svc h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: .6rem;
  letter-spacing: -.01em;
}
.svc p {
  font-size: .84rem;
  color: var(--g2);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}
.svc p strong { color: rgba(255,255,255,.65); font-weight: 600; }

.svc-link {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .8rem;
  font-weight: 600;
  color: var(--red);
  letter-spacing: .02em;
}
.svc-link span { display: inline-block; transition: transform .25s var(--ease); }

.svc-featured {
  border-left: 2px solid rgba(232,25,44,.25);
}

/* ============================================================
   PROCESO / STEPS
   ============================================================ */
.steps-row {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-bottom: 4rem;
}

.step {
  flex: 1;
  background: var(--b2);
  border: 1px solid var(--b4);
  border-radius: 10px;
  padding: 2rem 1.75rem;
  position: relative;
  overflow: hidden;
  transition: border-color .3s, transform .3s;
}
.step::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transition: transform .35s var(--ease);
}
.step:hover { border-color: var(--b3); transform: translateY(-4px); }
.step:hover::after { transform: scaleX(1); }

.step-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--red);
  margin-bottom: 1rem;
}
.step-ico { color: var(--g3); margin-bottom: .85rem; transition: color .25s; }
.step:hover .step-ico { color: var(--red); }
.step h3 { font-size: .95rem; font-weight: 700; color: var(--white); margin-bottom: .4rem; }
.step p  { font-size: .82rem; color: var(--g2); line-height: 1.6; }

.step-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 .5rem;
  gap: .35rem;
  flex-shrink: 0;
}
.sc-line { width: 1px; height: 24px; background: var(--b4); }
.sc-arrow { font-size: .9rem; color: var(--red); opacity: .6; }

/* Modelos de trabajo */
.models-wrap {
  border: 1px solid var(--b4);
  border-radius: 10px;
  overflow: hidden;
}
.models-title {
  padding: 1rem 1.5rem;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--g3);
  background: var(--b2);
  border-bottom: 1px solid var(--b4);
}
.models-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--b4);
  gap: 1px;
}
.model {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  padding: 1.25rem 1.5rem;
  background: var(--b1);
  transition: background .2s;
}
.model:hover { background: var(--b2); }
.model-dot {
  width: 6px; height: 6px;
  background: var(--red);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: .45rem;
}
.model div { display: flex; flex-direction: column; gap: .15rem; }
.model strong { font-size: .88rem; color: var(--white); font-weight: 600; }
.model span { font-size: .78rem; color: var(--g2); }

/* ============================================================
   CONTACTO
   ============================================================ */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 6rem;
  align-items: start;
}

.contact-info .sec-tag { display: block; margin-bottom: .9rem; }
.contact-info .sec-title { margin-bottom: 1rem; }
.contact-sub { font-size: .9rem; color: var(--g2); max-width: 340px; margin-bottom: 2.5rem; line-height: 1.7; }

.cinfo-list { display: flex; flex-direction: column; gap: .65rem; margin-bottom: 2rem; }
.cinfo-row {
  display: flex;
  align-items: center;
  gap: .9rem;
  padding: .9rem 1.1rem;
  background: var(--b2);
  border: 1px solid var(--b4);
  border-radius: 7px;
  transition: border-color .25s, transform .25s;
}
.cinfo-row:hover { border-color: rgba(232,25,44,.4); transform: translateX(4px); }
.cinfo-ico {
  width: 34px; height: 34px;
  background: rgba(232,25,44,.08);
  border-radius: 6px;
  display: grid;
  place-items: center;
  color: var(--red);
  flex-shrink: 0;
}
.ci-l { display: block; font-size: .68rem; color: var(--g2); letter-spacing: .06em; text-transform: uppercase; }
.ci-v { display: block; font-size: .9rem; font-weight: 600; color: var(--white); }

.cert-row { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.cert {
  padding: .28rem .8rem;
  border: 1px solid rgba(232,25,44,.3);
  border-radius: 4px;
  font-size: .68rem;
  font-weight: 700;
  color: var(--red);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.contact-logo-wrap { opacity: .85; }
.contact-logo { height: 90px; width: auto; object-fit: contain; }

/* Formulario */
.contact-form-wrap {
  background: var(--b2);
  border: 1px solid var(--b4);
  border-radius: 14px;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}
.contact-form-wrap::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--red), transparent);
}

.form-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem;
  font-weight: 400;
  letter-spacing: .04em;
  color: var(--white);
  margin-bottom: 1.75rem;
}

.form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.fg { display: flex; flex-direction: column; gap: .38rem; }
.fg label {
  font-size: .72rem;
  font-weight: 600;
  color: var(--g2);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.fg input, .fg select, .fg textarea {
  padding: .75rem 1rem;
  background: var(--b3);
  border: 1px solid var(--b4);
  border-radius: 7px;
  color: var(--white);
  font: inherit;
  font-size: .9rem;
  transition: border-color .2s, box-shadow .2s;
  outline: none;
  resize: vertical;
}
.fg input::placeholder, .fg textarea::placeholder { color: var(--g3); }
.fg input:focus, .fg select:focus, .fg textarea:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(232,25,44,.1);
}
.fg select { appearance: none; cursor: pointer; }

.form-msg {
  font-size: .82rem;
  color: var(--red);
  text-align: center;
  min-height: 1.2em;
  padding-top: .25rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  position: relative;
  background: var(--b1);
  border-top: 1px solid var(--b4);
  overflow: hidden;
}
.footer-pattern {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='100'%3E%3Cpath d='M28 66L0 50V16L28 0l28 16v34zm28 18l-28-16V34l28-16 28 16v34zM0 84l28 16 28-16V50L28 34 0 50z' fill='none' stroke='rgba(255%2C255%2C255%2C0.04)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 56px 100px;
  pointer-events: none;
}
.footer-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 4rem;
  align-items: center;
  padding: 3rem 2rem;
}
.footer-logo { height: 70px; width: auto; object-fit: contain; margin-bottom: .5rem; }
.footer-brand p { font-size: .78rem; color: var(--g3); letter-spacing: .1em; }
.footer-nav {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.footer-nav a { font-size: .84rem; color: var(--g2); transition: color .2s; }
.footer-nav a:hover { color: var(--red); }
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  text-align: right;
}
.footer-contact a, .footer-contact span { font-size: .84rem; color: var(--g2); transition: color .2s; }
.footer-contact a:hover { color: var(--red); }
.footer-bottom {
  position: relative;
  border-top: 1px solid var(--b4);
  padding: 1.1rem 2rem;
  text-align: center;
}
.footer-bottom span { font-size: .74rem; color: var(--g3); letter-spacing: .04em; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-layout { max-width: 100%; }
  .contact-wrap { grid-template-columns: 1fr; gap: 3rem; }
  .svc-grid { grid-template-columns: 1fr 1fr; }
  .svc:nth-child(4) { grid-column: auto; }
  .svc:nth-child(5) { grid-column: auto; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  nav[aria-label="Principal"] { display: none; }
  .burger { display: flex; }
  .mobile-nav { display: flex; }

  .section { padding: 5rem 0; }
  .container { padding: 0 1.25rem; }

  /* Hero */
  .hero-h1 { font-size: clamp(3.2rem, 12vw, 5rem); }
  .hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; }
  .hstat-sep { display: none; }
  .hstat-num { font-size: 1.9rem; }
  .cn { font-size: 1.9rem; }
  .hstat-plus,
  .hstat-prefix { font-size: 1.2rem; }
  .hstat-label { font-size: .58rem; letter-spacing: .08em; }

  /* Servicios */
  .svc-grid { grid-template-columns: 1fr; }

  /* Proceso */
  .steps-row { flex-direction: column; gap: .75rem; }
  .step-connector { flex-direction: row; padding: 0; }
  .sc-line { width: 24px; height: 1px; }
  .sc-arrow { transform: rotate(90deg); }

  /* Modelos / contacto */
  .models-grid { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .contact-logo-wrap { display: none; }      /* logo repetido, se oculta en mobile */

  /* Fondos decorativos: texto de slides visible en pantalla chica */
  #servicios::before,
  #proceso::before { display: none; }

  /* Footer */
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; padding: 2.5rem 1.25rem; }
  .footer-contact { text-align: left; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .contact-form-wrap { padding: 1.5rem; }
}

/* ============================================================
   BOTÓN VOLVER ARRIBA
   ============================================================ */
.back-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 300;
  width: 48px;
  height: 48px;
  background: var(--red);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(232,25,44,.35);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity .3s var(--ease), transform .3s var(--ease), background .2s;
}
.back-top.visible {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.back-top:hover { background: #ff1f34; transform: translateY(-3px); box-shadow: 0 12px 32px rgba(232,25,44,.45); }