/* ─── VARIABLES ─── */
:root {
  --negro:      #ffffff;
  --gris-100:   #f8fafb;
  --gris-200:   #edf2f7;
  --gris-300:   #cbd5e0;
  --gris-400:   #718096;
  --gris-500:   #4a5568;
  --blanco:     #3e3e3e;
  --plata:      #00c896;
  --plata-viva: rgb(31, 218, 87);
  --acento:     #00a87a;

  --font-display: 'Exo 2', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  --ease-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-expo:   cubic-bezier(0.19, 1, 0.22, 1);
}

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

html { scroll-behavior: smooth; }



body {
  font-family: var(--font-body);
  background-color: var(--negro);
  color: var(--blanco);
  overflow-x: hidden;
  cursor: none;
}

/* ─── CURSOR ─── */
.cursor {
  width: 8px; height: 8px;
  background: var(--plata-viva);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none; z-index: 9999;
  transition: transform 0.1s var(--ease-smooth);
}
.cursor-ring {
  width: 36px; height: 36px;
  border: 1px solid rgba(200,200,200,0.4);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none; z-index: 9998;
  transition: transform 0.18s var(--ease-smooth), width 0.3s, height 0.3s, border-color 0.3s;
}
.cursor-ring.hover { width: 56px; height: 56px; border-color: rgba(200,200,200,0.8); }

/* ─── CANVAS PARTÍCULAS ─── */
#particles-canvas {
  position: fixed; inset: 0;
  z-index: 0; pointer-events: none;
  opacity: 0.35;
}

/* ─── HEADER ─── */
.header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 24px 48px;
  display: flex; align-items: center; justify-content: space-between;
  transition: background 0.4s var(--ease-smooth), padding 0.4s var(--ease-smooth), backdrop-filter 0.4s;
}
.header.scrolled {
  background: rgba(8,8,8,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 16px 48px;
  border-bottom: 1px solid var(--gris-300);
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 6px;
  color: var(--blanco);
  text-decoration: none;
}
.logo-text span { color: var(--plata); }

.nav { display: flex; gap: 40px; }
.nav a {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #ffffff;
  text-decoration: none;
  transition: color 0.3s;
  position: relative;
}
.nav a::after {
  content: '';
  position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--plata);
  transition: width 0.4s var(--ease-expo);
}
.nav a:hover { color: var(--plata-viva); }
.nav a:hover::after { width: 100%; }

/* ─── HERO ─── */
.hero {
  position: relative; z-index: 1;
  min-height: 100vh;
  display: flex; flex-direction: column;
  justify-content: center; align-items: flex-start;
  padding: 0 48px 0 80px;
}

.hero-tag {
  font-size: 0.7rem;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--gris-500);
  margin-bottom: 28px;
  display: flex; align-items: center; gap: 12px;
}
.hero-tag::before {
  content: '';
  display: inline-block;
  width: 32px; height: 1px;
  background: var(--gris-400);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 7rem);
  font-weight: 300;
  line-height: 1.08;
  color: var(--blanco);
  max-width: 800px;
}
.hero h1 em { font-style: italic; color: var(--plata); }

.hero-sub {
  margin-top: 36px;
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--gris-500);
  max-width: 420px;
  letter-spacing: 0.5px;
}

.hero-cta {
  margin-top: 48px;
  display: flex; gap: 20px; align-items: center;
}

.btn-primary {
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  font-weight: 500;
  padding: 14px 32px;
  background: var(--blanco);
  color: var(--negro);
  border: none; cursor: none;
  transition: background 0.3s, color 0.3s, transform 0.3s var(--ease-expo);
  text-decoration: none; display: inline-block;
}
.btn-primary:hover { background: var(--plata); transform: translateY(-2px); }

.btn-ghost {
  font-size: 0.72rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  font-weight: 400;
  color: var(--gris-500);
  text-decoration: none;
  display: flex; align-items: center; gap: 8px;
  transition: color 0.3s;
}
.btn-ghost:hover { color: var(--plata-viva); }
.btn-ghost svg { transition: transform 0.3s; }
.btn-ghost:hover svg { transform: translateX(4px); }

.hero-scroll-hint {
  position: absolute; bottom: 40px; left: 80px;
  font-size: 0.65rem; letter-spacing: 4px;
  text-transform: uppercase; color: var(--gris-400);
  display: flex; align-items: center; gap: 12px;
}
.scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, transparent, var(--gris-400));
  animation: scrollPulse 2s infinite;
}
@keyframes scrollPulse {
  0%,100% { opacity: 0.3; }
  50%      { opacity: 1; }
}

/* ─── SECTION LABEL ─── */
.section-label {
  font-size: 0.68rem;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--gris-400);
  margin-bottom: 48px;
  display: flex; align-items: center; gap: 16px;
}
.section-label::after {
  content: '';
  flex: 1; height: 1px;
  background: var(--gris-300);
}

/* ─── VISOR 3D ─── */
.visor-section {
  position: relative; z-index: 1;
  padding: 80px 48px;
  border-top: 1px solid var(--gris-300);
}

.visor-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.visor-info h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 300;
  line-height: 1.2;
  color: var(--blanco);
  margin-bottom: 24px;
}
.visor-info h2 em { font-style: italic; color: var(--plata); }
.visor-info p {
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--gris-500);
  margin-bottom: 32px;
}

.visor-controls {
  display: flex; gap: 12px; margin-bottom: 20px;
}
.nav-btn {
  width: 44px; height: 44px;
  background: var(--gris-200);
  border: 1px solid var(--gris-300);
  color: var(--plata);
  font-size: 1.4rem;
  cursor: none;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.3s, border-color 0.3s;
}
.nav-btn:hover { background: var(--gris-300); border-color: var(--gris-400); }

.modelo-nombre {
  font-size: 0.72rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gris-500);
}

.visor-container { position: relative; }
model-viewer {
  width: 100%; height: 440px;
  background: transparent;
  border: 1px solid var(--gris-300);
}
.visor-container::before {
  content: '';
  position: absolute; inset: -1px;
  background: linear-gradient(135deg, rgba(200,200,200,0.08) 0%, transparent 60%);
  pointer-events: none; z-index: 1;
}

/* ─── TRABAJOS ─── */
.trabajos-section {
  position: relative; z-index: 1;
  padding: 80px 0;
  border-top: 1px solid var(--gris-300);
  overflow: hidden;
}
.trabajos-header { padding: 0 48px 48px; }

.carrusel-wrap { overflow: hidden; width: 100%; }
.carrusel-track {
  display: flex;
  gap: 2px;
  animation: slideCarrusel 28s linear infinite;
  width: max-content;
}
.carrusel-track:hover { animation-play-state: paused; }
.carrusel-track img {
  height: 280px; width: 420px;
  object-fit: cover; flex-shrink: 0;
  filter: grayscale(30%);
  transition: filter 0.4s;
}
.carrusel-track img:hover { filter: grayscale(0%); }

@keyframes slideCarrusel {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ─── SERVICIOS ─── */
.servicios-section {
  position: relative; z-index: 1;
  padding: 80px 48px;
  border-top: 1px solid var(--gris-300);
}

.servicios-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--gris-300);
  border: 1px solid var(--gris-300);
  margin-top: 48px;
}

@media (max-width: 1200px) {

  .servicios-grid {
    grid-template-columns: repeat(2, 1fr);
  }

}

@media (max-width: 768px) {

  .servicios-grid {
    grid-template-columns: 1fr;
  }

}

.servicio-card {
  background: var(--negro);
  padding: 48px 36px;
  position: relative; overflow: hidden;
  transition: background 0.4s var(--ease-smooth);
  display: flex; flex-direction: column;
  justify-content: space-between;
  min-height: 360px;
}
.servicio-card::before {
  content: '';
  position: absolute; inset: 0;
  background-image: var(--bg-img);
  background-size: cover; background-position: center;
  opacity: 0;
  transition: opacity 0.6s var(--ease-smooth);
}
.servicio-card::after {
  content: '';
  position: absolute; inset: 0;
  background: rgba(8,8,8,0.82);
  opacity: 0;
  transition: opacity 0.6s var(--ease-smooth);
}
.servicio-card:hover::before,
.servicio-card:hover::after { opacity: 1; }

.card-num {
  font-family: var(--font-display);
  font-size: 3.5rem; font-weight: 300;
  color: var(--gris-300); line-height: 1;
  transition: color 0.4s;
  position: relative; z-index: 2;
}
.servicio-card:hover .card-num { color: var(--gris-400); }

.card-body { position: relative; z-index: 2; }
.card-body h3 {
  transition: color 0.4s ease;
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 400;
  color: var(--blanco);
  margin-bottom: 16px; line-height: 1.3;
}
.card-body p {
  transition: color 0.4s ease;
  font-size: 0.83rem; line-height: 1.8;
  color: var(--gris-500); margin-bottom: 28px;
}

.card-link {
  transition: color 0.3s;
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.7rem; letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gris-500); text-decoration: none;
}
.card-link:hover { color: var(--plata-viva); }
.card-link svg { transition: transform 0.3s; }
.card-link:hover svg { transform: translateX(4px); }

/* ─── CONÓCENOS ─── */
.conocenos-section {
  position: relative; z-index: 1;
  padding: 80px 48px;
  border-top: 1px solid var(--gris-300);
}

.conocenos-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
  margin-top: 48px;
}

.conocenos-texto h2 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 4rem);
  font-weight: 300; line-height: 1.15;
  color: var(--blanco); margin-bottom: 28px;
}
.conocenos-texto h2 em { font-style: italic; color: var(--plata); }
.conocenos-texto p {
  font-size: 0.88rem; line-height: 1.9;
  color: var(--gris-500);
}

.stats-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 2px; background: var(--gris-300);
  border: 1px solid var(--gris-300);
}
.stat-item { background: var(--negro); padding: 40px 32px; }
.stat-num {
  font-family: var(--font-display);
  font-size: 3.2rem; font-weight: 300;
  color: var(--blanco); line-height: 1; margin-bottom: 8px;
}
.stat-num span { font-size: 2rem; color: var(--plata); }
.stat-label {
  font-size: 0.7rem; letter-spacing: 3px;
  text-transform: uppercase; color: var(--gris-500);
}

.servicio-card:hover .card-body h3,
.servicio-card:hover .card-body p,
.servicio-card:hover .card-link {
  color: #ffffff;
}

.servicio-card:hover .card-num {
  color: #c4c4c4;
}

/* ─── FOOTER ─── */
footer {
  position: relative; z-index: 1;
  padding: 48px;
  border-top: 1px solid var(--gris-300);
  display: flex; align-items: center; justify-content: space-between;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.1rem; letter-spacing: 5px;
  color: var(--gris-400);
}
.footer-copy {
  font-size: 0.7rem; letter-spacing: 2px;
  color: var(--gris-400);
}

/* ─── SCROLL REVEAL ─── */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.9s var(--ease-expo), transform 0.9s var(--ease-expo);
}
.reveal.from-left  { transform: translateX(-40px); }
.reveal.from-right { transform: translateX(40px); }
.reveal.scale-in   { transform: scale(0.95); }
.reveal.visible    { opacity: 1; transform: none; }

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.45s; }

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .header { padding: 20px 24px; }
  .header.scrolled { padding: 14px 24px; }
  .hero { padding: 0 24px; }
  .hero-scroll-hint { left: 24px; }
  .visor-section, .servicios-section, .conocenos-section { padding: 60px 24px; }
  .trabajos-header { padding: 0 24px 40px; }
  .visor-layout, .conocenos-grid { grid-template-columns: 1fr; gap: 40px; }
  .servicios-grid { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 16px; text-align: center; }
  .nav { gap: 24px; }
}

/* ─── CONTACTO FLOTANTE ─── */

.floating-contact {
  position: fixed;
  right: 24px;
  bottom: 24px;

  z-index: 9999;

  display: flex;
  flex-direction: column;
  gap: 14px;
}

.float-btn {
  position: relative;

  width: 54px;
  height: 54px;

  border-radius: 999px;

  display: flex;
  align-items: center;

  overflow: hidden;

  text-decoration: none;

  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);

background: rgba(255,255,255,0.25);

border: 1px solid rgba(255,255,255,0.10);

box-shadow:
  0 4px 20px rgba(0,0,0,0.18),
  inset 0 1px 0 rgba(255,255,255,0.08);

  transition:
    transform 0.3s var(--ease-expo),
    background 0.3s;

  isolation: isolate;
}
.float-btn::before {
  content: '';

  position: absolute;
  inset: 0;

  border-radius: 999px;

  opacity: 0;

  transition:
    opacity 0.35s ease,
    transform 0.35s ease;

  transform: scale(0.8);

  z-index: -1;
}

.float-btn:hover::before {
  opacity: 1;
  transform: scale(1);
}

.float-btn svg {
  width: 22px;
  height: 22px;

  min-width: 22px;

  margin-left: 16px;

  color: white;

  z-index: 2;
}

.float-btn span {
  margin-left: 16px;

  white-space: nowrap;

  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;

  color: white;

  opacity: 0;

  transition: opacity 0.3s ease;

  z-index: 2;
}

.float-btn:hover span {
  opacity: 1;
}

/* backgrounds reales */

/* WhatsApp */

.whatsapp::before {
  background:
    linear-gradient(
      135deg,
      rgba(0,200,150,0.55),
      rgba(0,200,150,0.18)
    );
}

/* Instagram */

.instagram::before {
  background:
    linear-gradient(
      135deg,
      rgba(225,48,108,0.55),
      rgba(131,58,180,0.18)
    );
}

/* Mail */

.mail::before {
  background:
    linear-gradient(
      135deg,
      rgba(0,87,184,0.55),
      rgba(0,87,184,0.18)
    );
}
/* Colores */

.whatsapp {
  background: rgba(0, 200, 150, 0.18);
}

.whatsapp:hover {
  background: rgba(0, 200, 150, 0.3);
}

.instagram {
  background: rgba(225, 48, 108, 0.18);
}

.instagram:hover {
  background: rgba(225, 48, 108, 0.3);
}

.mail {
  background: rgba(0, 87, 184, 0.18);
}

.mail:hover {
  background: rgba(0, 87, 184, 0.3);
}

/* móvil */

@media (max-width: 768px) {

.floating-contact {
  position: fixed;
  right: 24px;
  bottom: 24px;

  z-index: 9999;

  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 14px;
}

.float-btn:hover {
  transform: translateX(-6px);

  border-color: rgba(255,255,255,0.18);

  box-shadow:
    0 8px 30px rgba(0,0,0,0.28),
    0 0 18px rgba(255,255,255,0.06);
}

  .float-btn span {
    display: none;
  }

}