@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=Montserrat:wght@200;300;400;500&display=swap');

:root {
  --negro: #0a0a0a;
  --negro-medio: #111111;
  --negro-suave: #1a1a1a;
  --dorado: #c9a84c;
  --dorado-suave: #e8d5a3;
  --blanco: #f5f0e8;
  --blanco-suave: #d4cfc7;
  --gris: #555555;
  --transicion: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--negro);
  color: var(--blanco);
  font-family: 'Montserrat', sans-serif;
  font-weight: 300;
  overflow-x: hidden;
  cursor: none;
}

/* CURSOR CUSTOM */
.cursor {
  width: 8px;
  height: 8px;
  background: var(--dorado);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s ease, width 0.3s ease, height 0.3s ease;
}

.cursor-follower {
  width: 32px;
  height: 32px;
  border: 1px solid rgba(201, 168, 76, 0.4);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease, width 0.3s ease, height 0.3s ease, opacity 0.3s ease;
}

body:hover .cursor-follower { opacity: 1; }

/* LOADER */
#loader {
  position: fixed;
  inset: 0;
  background: var(--negro);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

#loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.5rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  color: var(--blanco);
}

.loader-logo span {
  color: var(--dorado);
}

.loader-bar-container {
  width: 200px;
  height: 1px;
  background: rgba(255,255,255,0.1);
  position: relative;
  overflow: hidden;
}

.loader-bar {
  height: 100%;
  background: var(--dorado);
  width: 0%;
  transition: width 0.05s linear;
}

.loader-number {
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  color: var(--gris);
}

/* NAV */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 2rem 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  mix-blend-mode: normal;
  transition: background 0.5s ease, padding 0.5s ease;
}

nav.scrolled {
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  padding: 1.2rem 4rem;
  border-bottom: 1px solid rgba(201, 168, 76, 0.1);
}

.nav-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  text-decoration: none;
  color: var(--blanco);
}

.nav-logo span { color: var(--dorado); }

.nav-links {
  display: flex;
  gap: 3rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--blanco-suave);
  transition: color 0.3s ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--dorado);
  transition: width 0.4s ease;
}

.nav-links a:hover { color: var(--dorado); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--dorado);
  border: 1px solid rgba(201, 168, 76, 0.4);
  padding: 0.6rem 1.5rem;
  transition: all 0.3s ease;
}

.nav-cta:hover {
  background: var(--dorado);
  color: var(--negro);
}

/* HERO */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  padding: 0 4rem 6rem;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(10,10,10,0.3) 0%, rgba(10,10,10,0.7) 60%, var(--negro) 100%),
    url('https://images.unsplash.com/photo-1486325212027-8081e485255e?w=1800&q=80') center/cover no-repeat;
}

.hero-noise {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-eyebrow {
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--dorado);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s var(--transicion) 0.3s forwards;
}

.hero-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(3.5rem, 7vw, 6.5rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin-bottom: 2rem;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1.2s var(--transicion) 0.5s forwards;
}

.hero-title em {
  font-style: italic;
  color: var(--dorado-suave);
}

.hero-sub {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--blanco-suave);
  max-width: 400px;
  line-height: 2;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s var(--transicion) 0.8s forwards;
}

.hero-scroll {
  position: absolute;
  bottom: 4rem;
  right: 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  opacity: 0;
  animation: fadeUp 1s ease 1.5s forwards;
}

.hero-scroll span {
  font-size: 0.55rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gris);
  writing-mode: vertical-rl;
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--dorado), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

/* SECCIONES GENERALES */
section {
  padding: 8rem 4rem;
}

.section-label {
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--dorado);
  margin-bottom: 1rem;
}

.section-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.5rem, 4vw, 4rem);
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: 3rem;
}

.section-title em {
  font-style: italic;
  color: var(--dorado-suave);
}

/* NOSOTROS */
#nosotros {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.nosotros-text p {
  font-size: 0.85rem;
  line-height: 2;
  color: var(--blanco-suave);
  margin-bottom: 1.5rem;
}

.nosotros-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

.stat {
  border-top: 1px solid rgba(201, 168, 76, 0.2);
  padding-top: 1.5rem;
}

.stat-number {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3rem;
  font-weight: 300;
  color: var(--dorado);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gris);
}

.nosotros-image {
  position: relative;
  height: 600px;
}

.nosotros-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(30%) contrast(1.1);
}

.nosotros-image::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  right: 20px;
  bottom: 20px;
  border: 1px solid rgba(201, 168, 76, 0.2);
  z-index: -1;
}

/* PROYECTOS */
#proyectos {
  border-top: 1px solid rgba(255,255,255,0.05);
}

.proyectos-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 4rem;
}

.ver-todos {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dorado);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 168, 76, 0.3);
  padding-bottom: 2px;
  transition: all 0.3s ease;
}

.ver-todos:hover {
  color: var(--blanco);
  border-color: var(--blanco);
}

.proyectos-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  grid-template-rows: auto auto;
  gap: 1.5rem;
}

.proyecto-card {
  position: relative;
  overflow: hidden;
  cursor: none;
}

.proyecto-card:first-child {
  grid-row: span 2;
  height: 700px;
}

.proyecto-card:not(:first-child) {
  height: 330px;
}

.proyecto-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--transicion), filter 0.8s ease;
  filter: grayscale(20%);
}

.proyecto-card:hover img {
  transform: scale(1.05);
  filter: grayscale(0%);
}

.proyecto-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.9) 0%, transparent 50%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  transform: translateY(60px);
  transition: transform 0.6s var(--transicion);
}

.proyecto-card:hover .proyecto-overlay {
  transform: translateY(0);
}

.proyecto-tag {
  font-size: 0.55rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--dorado);
  margin-bottom: 0.5rem;
}

.proyecto-nombre {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.8rem;
  font-weight: 300;
}

.proyecto-desc {
  font-size: 0.7rem;
  color: var(--blanco-suave);
  margin-top: 0.5rem;
  line-height: 1.8;
  opacity: 0;
  transition: opacity 0.4s ease 0.2s;
}

.proyecto-card:hover .proyecto-desc { opacity: 1; }

/* VISOR 3D */
#visor {
  border-top: 1px solid rgba(255,255,255,0.05);
  background: var(--negro-medio);
}

.visor-header {
  text-align: center;
  margin-bottom: 4rem;
}

.visor-header .section-title { margin-bottom: 1rem; }

.visor-header p {
  font-size: 0.8rem;
  color: var(--blanco-suave);
  letter-spacing: 0.05em;
  line-height: 2;
}

.visor-container {
  position: relative;
  width: 100%;
  height: 600px;
  background: var(--negro-suave);
  border: 1px solid rgba(201, 168, 76, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.visor-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.visor-icon {
  width: 80px;
  height: 80px;
  border: 1px solid rgba(201, 168, 76, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
}

.visor-icon svg {
  width: 36px;
  height: 36px;
  stroke: var(--dorado);
  fill: none;
  stroke-width: 1;
}

.visor-placeholder h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.8rem;
  font-weight: 300;
  color: var(--blanco);
}

.visor-placeholder p {
  font-size: 0.7rem;
  color: var(--gris);
  letter-spacing: 0.1em;
  max-width: 300px;
  line-height: 2;
}

.visor-btn {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--negro);
  background: var(--dorado);
  border: none;
  padding: 1rem 2.5rem;
  cursor: none;
  transition: all 0.3s ease;
}

.visor-btn:hover {
  background: var(--dorado-suave);
}

/* Unity iframe (cuando esté listo) */
#unity-container {
  display: none;
  width: 100%;
  height: 100%;
}

#unity-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.visor-corner {
  position: absolute;
  width: 20px;
  height: 20px;
  border-color: rgba(201, 168, 76, 0.4);
  border-style: solid;
}

.visor-corner.tl { top: 16px; left: 16px; border-width: 1px 0 0 1px; }
.visor-corner.tr { top: 16px; right: 16px; border-width: 1px 1px 0 0; }
.visor-corner.bl { bottom: 16px; left: 16px; border-width: 0 0 1px 1px; }
.visor-corner.br { bottom: 16px; right: 16px; border-width: 0 1px 1px 0; }

/* SERVICIOS */
#servicios {
  border-top: 1px solid rgba(255,255,255,0.05);
}

.servicios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.05);
  margin-top: 4rem;
}

.servicio-item {
  background: var(--negro);
  padding: 3rem 2.5rem;
  transition: background 0.4s ease;
  position: relative;
  overflow: hidden;
}

.servicio-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--dorado);
  transition: width 0.6s var(--transicion);
}

.servicio-item:hover { background: var(--negro-suave); }
.servicio-item:hover::after { width: 100%; }

.servicio-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3rem;
  font-weight: 300;
  color: rgba(201, 168, 76, 0.15);
  line-height: 1;
  margin-bottom: 1.5rem;
}

.servicio-titulo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem;
  font-weight: 300;
  margin-bottom: 1rem;
  color: var(--blanco);
}

.servicio-desc {
  font-size: 0.75rem;
  line-height: 2;
  color: var(--gris);
}

/* CONTACTO */
#contacto {
  border-top: 1px solid rgba(255,255,255,0.05);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
}

.contacto-info p {
  font-size: 0.85rem;
  line-height: 2;
  color: var(--blanco-suave);
  margin-bottom: 3rem;
}

.contacto-dato {
  margin-bottom: 2rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 1.5rem;
}

.contacto-dato-label {
  font-size: 0.55rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--dorado);
  margin-bottom: 0.4rem;
}

.contacto-dato-valor {
  font-size: 0.9rem;
  color: var(--blanco);
}

.contacto-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gris);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  color: var(--blanco);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.85rem;
  font-weight: 300;
  padding: 0.8rem 0;
  outline: none;
  transition: border-color 0.3s ease;
  cursor: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-bottom-color: var(--dorado);
}

.form-group textarea { resize: none; min-height: 100px; }

.form-group select option { background: var(--negro-medio); }

.btn-submit {
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--negro);
  background: var(--dorado);
  border: none;
  padding: 1.2rem 3rem;
  align-self: flex-start;
  cursor: none;
  transition: all 0.4s ease;
  margin-top: 1rem;
}

.btn-submit:hover {
  background: var(--dorado-suave);
  transform: translateX(4px);
}

/* FOOTER */
footer {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 3rem 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.2rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--blanco);
}

.footer-logo span { color: var(--dorado); }

.footer-copy {
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--gris);
}

.footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gris);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover { color: var(--dorado); }

/* FADE IN SCROLL */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s var(--transicion), transform 0.9s var(--transicion);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.9s var(--transicion), transform 0.9s var(--transicion);
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.9s var(--transicion), transform 0.9s var(--transicion);
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ANIMACIONES */
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scrollLine {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.5); opacity: 0.3; }
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  nav { padding: 1.5rem 2rem; }
  nav.scrolled { padding: 1rem 2rem; }
  section { padding: 6rem 2rem; }
  #hero { padding: 0 2rem 5rem; }
  #nosotros { grid-template-columns: 1fr; gap: 3rem; }
  .nosotros-image { height: 400px; }
  .proyectos-grid { grid-template-columns: 1fr; }
  .proyecto-card:first-child { height: 400px; grid-row: span 1; }
  .servicios-grid { grid-template-columns: 1fr; }
  #contacto { grid-template-columns: 1fr; gap: 3rem; }
  footer { flex-direction: column; gap: 1.5rem; text-align: center; }
  .nav-links { display: none; }
}