/* =====================================================
   MESM ARQUITECTOS — HOJA DE ESTILOS
   ===================================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800;900&family=Open+Sans:wght@300;400;600&display=swap');

/* =====================================================
   VARIABLES
   ===================================================== */
:root {
  --negro: #000000;
  --blanco: #FFFFFF;
  --cyan: #00C2E9;
  --cyan-hover: #00a8cc;
  --navy: #00002A;
  --gris: #E8E8E8;
  --gris-medio: #AAAAAA;
  --gris-oscuro: #555555;
  --font-h: 'Montserrat', sans-serif;
  --font-b: 'Open Sans', sans-serif;
  --transition: all 0.35s ease;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-hover: 0 12px 48px rgba(0,0,0,0.18);
  --radius: 0px;
  --nav-height: 72px;
}

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

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

body {
  font-family: var(--font-b);
  color: var(--negro);
  background: var(--blanco);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

ul { list-style: none; }

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* =====================================================
   TIPOGRAFÍA
   ===================================================== */
h1, h2, h3, h4, h5 {
  font-family: var(--font-h);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 7vw, 5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.1rem; }

p { font-size: 1rem; color: var(--gris-oscuro); line-height: 1.8; }

.eyebrow {
  font-family: var(--font-h);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  display: block;
  margin-bottom: 1rem;
}

.text-cyan { color: var(--cyan); }
.text-white { color: var(--blanco); }
.text-center { text-align: center; }

/* =====================================================
   LAYOUT HELPERS
   ===================================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-pad {
  padding: 100px 0;
}

.section-pad-sm {
  padding: 64px 0;
}

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

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* =====================================================
   BOTONES
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 14px 32px;
  font-family: var(--font-h);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--cyan);
  color: var(--negro);
}
.btn-primary:hover {
  background: var(--cyan-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,194,233,0.35);
}

.btn-dark {
  background: var(--negro);
  color: var(--blanco);
}
.btn-dark:hover {
  background: var(--navy);
  transform: translateY(-2px);
}

.btn-outline {
  border: 2px solid var(--blanco);
  color: var(--blanco);
  background: transparent;
}
.btn-outline:hover {
  background: var(--blanco);
  color: var(--negro);
}

.btn-outline-dark {
  border: 2px solid var(--negro);
  color: var(--negro);
  background: transparent;
}
.btn-outline-dark:hover {
  background: var(--negro);
  color: var(--blanco);
}

/* =====================================================
   NAVBAR
   ===================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

.navbar.transparent {
  background: transparent;
}

.navbar.scrolled {
  background: var(--negro);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.nav-logo .logo-main {
  font-family: var(--font-h);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--blanco);
}

.nav-logo .logo-sub {
  font-family: var(--font-h);
  font-size: 0.55rem;
  font-weight: 400;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--cyan);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-family: var(--font-h);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blanco);
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--cyan);
  transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  background: var(--cyan) !important;
  color: var(--negro) !important;
  padding: 8px 20px !important;
  font-weight: 700 !important;
}

.nav-cta:hover {
  background: var(--cyan-hover) !important;
}

.nav-cta::after { display: none !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--blanco);
  transition: var(--transition);
}

/* Mobile menu */
.nav-mobile {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--negro);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
}

.nav-mobile.open {
  display: flex;
}

.nav-mobile a {
  font-family: var(--font-h);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blanco);
}

.nav-mobile a:hover { color: var(--cyan); }

.nav-mobile-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  color: var(--blanco);
  font-size: 2rem;
  cursor: pointer;
  background: none;
  border: none;
  line-height: 1;
}

/* =====================================================
   HERO
   ===================================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--navy);
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.3) 0%,
    rgba(0,0,42,0.65) 60%,
    rgba(0,0,0,0.85) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--blanco);
  padding: 0 1.5rem;
}

.hero-content .eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.35em;
  color: var(--cyan);
}

.hero-content h1 {
  font-size: clamp(4rem, 12vw, 9rem);
  font-weight: 900;
  letter-spacing: 0.12em;
  line-height: 1;
  margin: 0.2em 0 0.1em;
  color: var(--blanco);
}

.hero-content .hero-sub {
  font-family: var(--font-h);
  font-size: clamp(0.75rem, 2vw, 1rem);
  font-weight: 300;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  margin-bottom: 2.5rem;
}

.hero-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.5);
  font-family: var(--font-h);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  animation: bounce 2s infinite;
}

.hero-scroll::after {
  content: '';
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.3);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* =====================================================
   PAGE HEADER (páginas interiores)
   ===================================================== */
.page-header {
  background: var(--negro);
  padding: calc(var(--nav-height) + 60px) 0 60px;
  text-align: center;
  color: var(--blanco);
}

.page-header h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: 0.05em;
}

.page-header p {
  color: rgba(255,255,255,0.6);
  margin-top: 0.75rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-family: var(--font-h);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
}

.breadcrumb a { color: var(--cyan); }
.breadcrumb span { color: rgba(255,255,255,0.25); }

/* =====================================================
   SECCIÓN INTRO
   ===================================================== */
.intro {
  padding: 100px 0;
  background: var(--blanco);
}

.intro-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.intro-text h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin-bottom: 1.5rem;
}

.intro-text h2 span {
  color: var(--cyan);
}

.intro-text p {
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
  line-height: 1.9;
}

.intro-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.stat-item {
  border-left: 3px solid var(--cyan);
  padding-left: 1rem;
}

.stat-num {
  font-family: var(--font-h);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--negro);
}

.stat-label {
  font-family: var(--font-h);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gris-oscuro);
  margin-top: 0.25rem;
}

/* =====================================================
   PROYECTOS — CARDS
   ===================================================== */
.proyectos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5px;
  background: var(--gris);
}

.proyecto-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--negro);
  cursor: pointer;
}

.proyecto-card img,
.proyecto-card .img-fallback {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.img-fallback {
  background: linear-gradient(135deg, #0a0a1a 0%, #00002A 50%, #001a30 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-h);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: rgba(0,194,233,0.4);
  text-transform: uppercase;
  text-align: center;
  padding: 1rem;
}

.proyecto-card:hover img {
  transform: scale(1.06);
}

.proyecto-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.1) 60%);
  z-index: 1;
  opacity: 1;
  transition: opacity 0.4s ease;
}

.proyecto-card-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  z-index: 2;
  color: var(--blanco);
  transform: translateY(0);
  transition: transform 0.4s ease;
}

.proyecto-card-cat {
  font-family: var(--font-h);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.4rem;
}

.proyecto-card-nombre {
  font-family: var(--font-h);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.4rem;
}

.proyecto-card-meta {
  font-family: var(--font-h);
  font-size: 0.72rem;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.05em;
}

.proyecto-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-h);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-top: 0.75rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease 0.05s, transform 0.3s ease 0.05s;
}

.proyecto-card:hover .proyecto-card-link {
  opacity: 1;
  transform: translateY(0);
}

/* Lista grid alternativa */
.proyectos-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

/* =====================================================
   FILTROS
   ===================================================== */
.filtros {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filtro-btn {
  font-family: var(--font-h);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 8px 20px;
  border: 2px solid var(--gris);
  color: var(--gris-oscuro);
  background: transparent;
  transition: var(--transition);
  cursor: pointer;
}

.filtro-btn:hover,
.filtro-btn.activo {
  border-color: var(--negro);
  background: var(--negro);
  color: var(--blanco);
}

.filtro-btn.activo {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--negro);
}

/* =====================================================
   SERVICIOS — CARDS
   ===================================================== */
.servicio-card {
  padding: 2.5rem;
  border: 1px solid var(--gris);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.servicio-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--cyan);
  transition: width 0.4s ease;
}

.servicio-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: transparent;
}

.servicio-card:hover::before {
  width: 100%;
}

.servicio-num {
  font-family: var(--font-h);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--gris);
  margin-bottom: 1.2rem;
  transition: color 0.3s ease;
}

.servicio-card:hover .servicio-num {
  color: var(--cyan);
}

.servicio-icono {
  font-size: 2rem;
  color: var(--negro);
  margin-bottom: 1rem;
  display: block;
}

.servicio-nombre {
  font-family: var(--font-h);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.servicio-desc {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  color: var(--gris-oscuro);
}

.servicio-features {
  list-style: none;
}

.servicio-features li {
  font-size: 0.85rem;
  padding: 6px 0;
  border-top: 1px solid var(--gris);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--gris-oscuro);
}

.servicio-features li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  flex-shrink: 0;
}

/* =====================================================
   ARQUITECTOS
   ===================================================== */
.arquitecto-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  align-items: start;
  padding: 3rem 0;
  border-bottom: 1px solid var(--gris);
}

.arquitecto-card:last-child {
  border-bottom: none;
}

.arquitecto-img {
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--gris);
  position: relative;
}

.arquitecto-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.arquitecto-img:hover img {
  transform: scale(1.04);
}

.arquitecto-info {}

.arquitecto-titulo {
  font-family: var(--font-h);
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.5rem;
}

.arquitecto-nombre {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.arquitecto-especialidad {
  font-family: var(--font-h);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--gris-oscuro);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.arquitecto-bio {
  font-size: 1rem;
  line-height: 1.85;
  margin-bottom: 1.5rem;
  max-width: 480px;
}

.arquitecto-contacto {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.arquitecto-contacto a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--gris-oscuro);
}

.arquitecto-contacto a:hover { color: var(--cyan); }

.arquitecto-contacto i { color: var(--cyan); font-size: 1rem; }

/* Grid simple para home */
.arquitectos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.arquitecto-card-home {
  text-align: center;
}

.arquitecto-card-home .arquitecto-img {
  aspect-ratio: 1/1;
  border-radius: 0;
  margin-bottom: 1.5rem;
}

/* =====================================================
   VALORES
   ===================================================== */
.valores-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  text-align: center;
}

.valor-item {
  padding: 2rem;
}

.valor-icon {
  font-size: 2.5rem;
  color: var(--cyan);
  margin-bottom: 1rem;
}

.valor-nombre {
  font-family: var(--font-h);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.valor-desc {
  font-size: 0.9rem;
  line-height: 1.8;
}

/* =====================================================
   PROYECTO DETALLE
   ===================================================== */
.proyecto-hero {
  position: relative;
  height: 65vh;
  min-height: 450px;
  overflow: hidden;
  background: var(--negro);
}

.proyecto-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
  transition: transform 8s ease;
}

.proyecto-hero:hover img {
  transform: scale(1.04);
}

.proyecto-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 60%);
}

.proyecto-hero-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 3rem;
  color: var(--blanco);
}

.proyecto-meta-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.chip {
  font-family: var(--font-h);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 5px 12px;
  background: rgba(0,194,233,0.2);
  border: 1px solid var(--cyan);
  color: var(--cyan);
}

.proyecto-detalle {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
  padding: 80px 0;
}

.proyecto-descripcion h2 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.proyecto-descripcion p {
  font-size: 1rem;
  margin-bottom: 2rem;
  line-height: 1.9;
}

.reto-solucion {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.reto-box, .solucion-box {
  padding: 1.5rem;
  background: var(--gris);
}

.reto-box h4, .solucion-box h4 {
  font-family: var(--font-h);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.75rem;
}

.reto-box p, .solucion-box p {
  font-size: 0.9rem;
  line-height: 1.75;
}

.proyecto-sidebar {}

.sidebar-dato {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--gris);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.sidebar-dato:first-child {
  border-top: 1px solid var(--gris);
}

.sidebar-dato-label {
  font-family: var(--font-h);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gris-medio);
}

.sidebar-dato-val {
  font-family: var(--font-h);
  font-size: 1rem;
  font-weight: 600;
}

/* Galería */
.galeria {
  padding: 0 0 80px;
}

.galeria h2 {
  margin-bottom: 2rem;
}

.galeria-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}

.galeria-item {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--negro);
  cursor: pointer;
  position: relative;
}

.galeria-item img {
  transition: transform 0.5s ease;
}

.galeria-item:hover img {
  transform: scale(1.05);
}

.galeria-item:nth-child(1) {
  grid-column: span 2;
  aspect-ratio: 16/9;
}

/* =====================================================
   LIGHTBOX
   ===================================================== */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.95);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}

.lightbox.open {
  display: flex;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  width: auto;
  height: auto;
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  color: var(--blanco);
  font-size: 2rem;
  cursor: pointer;
  z-index: 10000;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--blanco);
  font-size: 2rem;
  cursor: pointer;
  padding: 1rem;
  z-index: 10000;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.lightbox-prev:hover,
.lightbox-next:hover { opacity: 1; }

.lightbox-prev { left: 1rem; }
.lightbox-next { right: 1rem; }

.lightbox-counter {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-h);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.5);
}

/* =====================================================
   FORMULARIO CONTACTO
   ===================================================== */
.contacto-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-family: var(--font-h);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  color: var(--negro);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gris);
  border-bottom: 2px solid var(--negro);
  background: transparent;
  font-family: var(--font-b);
  font-size: 0.95rem;
  color: var(--negro);
  transition: var(--transition);
  outline: none;
  appearance: none;
}

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

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M6 8L0 0h12z' fill='%23000'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-submit {
  margin-top: 0.5rem;
}

.form-status {
  margin-top: 1rem;
  padding: 12px 16px;
  font-size: 0.9rem;
  display: none;
}

.form-status.success {
  background: rgba(0,194,233,0.1);
  border-left: 3px solid var(--cyan);
  color: var(--negro);
  display: block;
}

.form-status.error {
  background: rgba(220,0,0,0.08);
  border-left: 3px solid #cc0000;
  color: #cc0000;
  display: block;
}

/* Info contacto */
.contacto-info-items {
  margin-top: 2rem;
}

.contacto-info-item {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--gris);
  align-items: flex-start;
}

.contacto-info-item:first-child {
  border-top: 1px solid var(--gris);
}

.contacto-info-icon {
  width: 44px;
  height: 44px;
  background: var(--negro);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
  color: var(--cyan);
}

.contacto-info-text {}

.contacto-info-label {
  font-family: var(--font-h);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gris-oscuro);
  margin-bottom: 0.25rem;
}

.contacto-info-val {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--negro);
}

/* =====================================================
   CTA SECTION
   ===================================================== */
.cta-section {
  background: var(--navy);
  padding: 100px 0;
  text-align: center;
  color: var(--blanco);
}

.cta-section h2 {
  color: var(--blanco);
  margin-bottom: 1rem;
}

.cta-section p {
  color: rgba(255,255,255,0.6);
  max-width: 500px;
  margin: 0 auto 2.5rem;
  font-size: 1.05rem;
}

.cta-section .btn-primary {
  margin-right: 1rem;
}

/* =====================================================
   FOOTER
   ===================================================== */
footer {
  background: var(--negro);
  color: var(--blanco);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
  font-family: var(--font-h);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--blanco);
  margin-bottom: 0.35rem;
}

.footer-logo-sub {
  font-family: var(--font-h);
  font-size: 0.55rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1rem;
}

.footer-desc {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.8;
  max-width: 300px;
  margin-bottom: 1.5rem;
}

.footer-redes {
  display: flex;
  gap: 0.75rem;
}

.footer-redes a {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}

.footer-redes a:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.footer-col h5 {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 1.25rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col ul li a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  transition: color 0.3s;
}

.footer-col ul li a:hover { color: var(--cyan); }

.footer-bottom {
  padding: 1.25rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
}

.footer-legal a:hover { color: var(--cyan); }

/* =====================================================
   WHATSAPP FLOTANTE
   ===================================================== */
.whatsapp-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  z-index: 900;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 30px rgba(37,211,102,0.6);
}

.whatsapp-btn::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid #25D366;
  animation: whatsapp-pulse 2s ease-out infinite;
  opacity: 0;
}

@keyframes whatsapp-pulse {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* =====================================================
   ANIMACIONES SCROLL
   ===================================================== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* =====================================================
   SECCIÓN GENÉRICA
   ===================================================== */
.bg-gris { background: var(--gris); }
.bg-negro { background: var(--negro); }
.bg-navy { background: var(--navy); }

.section-header {
  margin-bottom: 4rem;
}

.section-header.center {
  text-align: center;
}

.section-header h2 {
  margin-bottom: 0.75rem;
}

.section-header p {
  max-width: 520px;
  font-size: 1.05rem;
}

.section-header.center p {
  margin: 0 auto;
}

.cyan-line {
  display: block;
  width: 48px;
  height: 3px;
  background: var(--cyan);
  margin: 1.5rem 0;
}

.cyan-line.center {
  margin: 1.5rem auto;
}

/* No hay proyectos */
.no-results {
  grid-column: 1/-1;
  text-align: center;
  padding: 4rem 0;
  color: var(--gris-medio);
  font-family: var(--font-h);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 1024px) {
  .proyectos-grid { grid-template-columns: repeat(2, 1fr); }
  .proyectos-list { grid-template-columns: repeat(2, 1fr); }
  .intro-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --nav-height: 60px; }

  .nav-links { display: none; }
  .nav-toggle { display: flex; }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .proyectos-grid { grid-template-columns: 1fr; }
  .proyectos-list { grid-template-columns: 1fr; }
  .arquitectos-grid { grid-template-columns: 1fr; }
  .valores-grid { grid-template-columns: 1fr; }
  .reto-solucion { grid-template-columns: 1fr; }
  .proyecto-detalle { grid-template-columns: 1fr; }
  .galeria-grid { grid-template-columns: repeat(2, 1fr); }
  .galeria-item:nth-child(1) { grid-column: span 2; }
  .contacto-layout { grid-template-columns: 1fr; gap: 3rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 0.75rem; text-align: center; }

  .arquitecto-card {
    grid-template-columns: 1fr;
  }

  .arquitecto-img {
    aspect-ratio: 4/3;
  }

  .hero-btns { flex-direction: column; align-items: center; }
  .cta-section .btn-primary { margin-right: 0; }

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

  .section-pad { padding: 64px 0; }
  .section-pad-sm { padding: 48px 0; }
}

@media (max-width: 480px) {
  .galeria-grid { grid-template-columns: 1fr; }
  .galeria-item:nth-child(1) { grid-column: span 1; aspect-ratio: 4/3; }
  .filtros { justify-content: center; }
}