/* =============================================
   SIMACON Construcciones — styles.css
   ============================================= */

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

:root {
  --r:   #C41A1A;
  --r2:  #a01515;
  --n:   #0d0d0d;
  --w:   #ffffff;
  --off: #f8f7f4;
  --g1:  #111111;
  --g2:  #333333;
  --g3:  #666666;
  --g4:  #999999;
  --g5:  #cccccc;
  --g6:  #e5e5e5;
  --font: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --max: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font);
  background: var(--w);
  color: var(--n);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font); }

/* Accesibilidad */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ── Sección base ── */
.section-inner { max-width: var(--max); margin: 0 auto; padding: 0 3rem; }

/* ── NAV ── */
header { position: fixed; top: 0; width: 100%; z-index: 900; }

#navbar {
  display: flex; align-items: center; justify-content: space-between;
  height: 62px; padding: 0 3rem;
  background: var(--off);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background var(--transition), border-color var(--transition);
}

.logo { display: flex; align-items: center; gap: 10px; }
.logo-img {
  height: 45px; /* Ajustá este valor según tu preferencia */
  width: auto;
  object-fit: contain;
  transition: height var(--transition);
}

/* Opcional: que el logo se achique un poco al hacer scroll */
#navbar.scrolled .logo-img {
  height: 38px;
}
.logo-text {
  font-size: .72rem; font-weight: 800;
  letter-spacing: 3px; color: var(--n);
  line-height: 1.1;
  transition: color var(--transition);
}
.logo-sub { font-size: .45rem; letter-spacing: 5px; opacity: .5; display: block; font-weight: 400; }

.nav-links { display: flex; gap: 2.5rem; }
.nav-links a {
  font-size: .68rem; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--g3); transition: color var(--transition);
}
.nav-links a:hover { color:var(--r2); }
#navbar.scrolled .nav-links a { color: var(--g3); }
#navbar.scrolled .nav-links a:hover { color: var(--n); }

.nav-cta {
  font-size: .65rem; letter-spacing: 2px; text-transform: uppercase;
  color: #fff; background: var(--r); padding: 9px 20px;
  transition: background var(--transition);
}
.nav-cta:hover { background: var(--r2); }

/* ── HERO ── */
#inicio {
  height: 100vh; min-height: 600px;
  position: relative; overflow: hidden; background: var(--n);
}

.hero-img-bg {
  position: absolute; inset: 0;
  background: url('maquinas.jpg') center / cover no-repeat;
  opacity: .38; filter: grayscale(20%);
  transition: transform 8s ease;
}

.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to right, rgba(13,13,13,.9) 5%, rgba(13,13,13,.2));
}

.hero-inner {
  position: relative; z-index: 1;
  height: 100%; display: flex; flex-direction: column;
  justify-content: flex-end; padding: 0 3rem 5rem;
  max-width: calc(var(--max) + 6rem); margin: 0 auto; width: 100%;
}

.hero-kicker {
  font-size: .62rem; letter-spacing: 3px; text-transform: uppercase;
  color: var(--r); margin-bottom: 1.25rem;
}

.hero-h1 {
  font-size: clamp(3rem, 7.5vw, 6.5rem);
  font-weight: 900; color: #fff; line-height: .95;
  letter-spacing: -2px; text-transform: uppercase; max-width: 680px;
}
.hero-h1 em { font-style: normal; color: var(--r); }

.hero-desc {
  color: rgba(255,255,255,.55); font-size: .9rem; line-height: 1.7;
  max-width: 380px; margin-top: 1.75rem;
}

.hero-cta { display: flex; gap: 1.25rem; align-items: center; margin-top: 2.25rem; }

.btn-primary {
  background: var(--r); color: #fff;
  padding: 13px 28px; font-size: .7rem; letter-spacing: 2px; text-transform: uppercase;
  transition: background var(--transition);
}
.btn-primary:hover { background: var(--r2); }

.btn-ghost {
  color: rgba(255,255,255,.7); font-size: .7rem;
  letter-spacing: 1.5px; text-transform: uppercase;
  transition: color var(--transition);
}
.btn-ghost:hover { color: #fff; }

.hero-scroll {
  position: absolute; bottom: 2rem; right: 3rem;
  writing-mode: vertical-rl; font-size: .55rem;
  letter-spacing: 3px; color: rgba(255,255,255,.25); text-transform: uppercase;
}

/* ── TICKER ── */
.ticker {
  background: var(--r); overflow: hidden;
  height: 38px; display: flex; align-items: center;
}

.ticker-track {
  display: flex; gap: 2rem; align-items: center;
  white-space: nowrap; padding: 0 2rem;
  animation: ticker 22s linear infinite;
}

.ticker-track span {
  font-size: .6rem; letter-spacing: 2.5px;
  text-transform: uppercase; color: rgba(255,255,255,.75);
}
.ticker-track .sep { color: rgba(255,255,255,.35); }

@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── NOSOTROS ── */
#nosotros { padding: 8rem 0; background: var(--w); }

.section-tag {
  font-size: .62rem; letter-spacing: 3px; text-transform: uppercase;
  color: var(--r); margin-bottom: 1.25rem; display: block;
}

/* Layout principal: fotos izq | contenido der */
.nosotros-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

/* --- Fotos --- */
.nosotros-fotos {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.foto-top {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--g6);
}
.foto-top img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(20%);
  transition: filter var(--transition), transform .5s ease;
}
.foto-top:hover img { filter: grayscale(0%); transform: scale(1.03); }

.foto-bottom-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .75rem;
}

.foto-bottom-left,
.foto-bottom-right {
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--g6);
}
.foto-bottom-left img,
.foto-bottom-right img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: top center;
  filter: grayscale(20%);
  transition: filter var(--transition), transform .5s ease;
}
.foto-bottom-left:hover img,
.foto-bottom-right:hover img { filter: grayscale(0%); transform: scale(1.03); }

/* --- Contenido --- */
.nosotros-content { display: flex; flex-direction: column; justify-content: center; }

.nosotros-title {
  font-size: clamp(2.5rem, 5vw, 4rem) !important;
  color: var(--n);
  margin-bottom: 1.75rem;
}

.nosotros-p {
  color: var(--g3); font-size: .9rem; line-height: 1.8; margin-bottom: 1rem;
}

.intro-vals { display: flex; flex-direction: column; gap: .5rem; }
.intro-vals li {
  display: flex; align-items: center; gap: 12px;
  font-size: .72rem; letter-spacing: 1px; text-transform: uppercase; color: var(--g4);
}
.intro-vals li::before { content: ''; width: 18px; height: 1px; background: var(--r); flex-shrink: 0; }

/* --- Números debajo del texto --- */
.nosotros-nums {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--g6);
  padding-top: 2rem;
  gap: 0;
}

.nosotros-num { padding-right: 1.5rem; }
.nosotros-num + .nosotros-num { padding-left: 1.5rem; border-left: 1px solid var(--g6); }

.num-big {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 900; letter-spacing: -2px; color: var(--n);
}
.num-dot { color: var(--r); }
.num-label { font-size: .58rem; letter-spacing: 2px; text-transform: uppercase; color: var(--g4); margin-top: .3rem; }

/* ── SERVICIOS ── */
#servicios { 
  padding: 8rem 0; 
  background: var(--off); 
}

/* Encabezado de la sección */
.serv-header {
  text-align: center;
  margin-bottom: 5rem;
}

.serv-header .section-h2 { 
  color: var(--n); 
  margin-bottom: 1rem;
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 900;
  text-transform: uppercase;
}

.serv-header .section-h2 em {
  color: var(--r); /* Uso de tu variable roja #C41A1A[cite: 2] */
  font-style: normal;
}

.serv-header p {
  color: var(--g3);
  font-size: 0.9rem;
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Contenedor de la cuadrícula */
.serv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* 3 columnas iguales[cite: 2] */
  gap: 5rem 3rem; /* Espaciado generoso entre tarjetas[cite: 2] */
  max-width: var(--max);
  margin: 0 auto;
}

/* Tarjeta de servicio individual */
.serv-card {
  display: flex;
  flex-direction: column;
  align-items: center; /* Centrado horizontal de todos los elementos[cite: 2] */
  text-align: center;}
  .serv-card:hover{
    transform: scale(1.15);
  }
/* Contenedor del Icono */
.serv-icon-wrap {
  width: 100px;
  height: 100px;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition); /* Utiliza tu variable de tiempo de 0.3s */
  will-change: transform;
}

.serv-icon-wrap img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
  /* Filtro opcional para asegurar que sean negros sólidos si son PNG */
  filter: brightness(0); 
}

/* Título del servicio en Rojo */
.serv-card-title {
  color: var(--r); /* Rojo institucional[cite: 2] */
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  line-height: 1.2;
}

/* Descripción del servicio */
.serv-card-desc {
  font-size: 0.88rem;
  color: var(--g3); /* Gris intermedio[cite: 2] */
  line-height: 1.7;
  max-width: 280px; /* Evita que el texto se estire demasiado */
  margin: 0 auto;
}
/* Estilo de línea de acento */
.serv-card-title {
  position: relative;
  display: inline-block;
  padding-bottom: 5px;
}

.serv-card-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--r); /* Tu rojo institucional */
  transition: width var(--transition), left var(--transition);
}

.serv-card:hover .serv-card-title::after {
  width: 100%;
  left: 0;
}

.serv-card:hover .serv-icon-wrap {
  transform: translateY(-8px); /* El ícono sube en lugar de crecer */
  filter: brightness(1.2);
}
/* ── OBRAS / CARRUSEL ── */
#obras { padding: 8rem 0; background: var(--w); }

.obras-header {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 2.5rem;
}
.obras-header .section-h2 { color: var(--n); }

.carousel-controls { display: flex; gap: .5rem; }

.carousel-btn {
  width: 44px; height: 44px; border: 1px solid var(--g6);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; color: var(--n); background: var(--w);
  transition: all var(--transition);
}
.carousel-btn:hover { background: var(--n); color: #fff; border-color: var(--n); }
.carousel-btn:disabled { opacity: .3; pointer-events: none; }

.carousel-wrapper { overflow: hidden; }

.carousel-track {
  display: flex; gap: 1.5rem;
  transition: transform .5s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

/* Cuántas tarjetas visibles: 3 */
.obra-card {
  flex: 0 0 calc((100% - 3rem) / 3);
  min-width: 0;
}

.obra-card-btn {
  display: block; width: 100%; text-align: left;
  cursor: pointer; background: none; border: none; padding: 0;
}

.obra-img-wrap {
  position: relative; overflow: hidden; aspect-ratio: 4/3;
  background: var(--g6);
}

.obra-img-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .55s cubic-bezier(0.4, 0, 0.2, 1);
  filter: grayscale(15%);
}

.obra-card-btn:hover .obra-img-wrap img {
  transform: scale(1.06);
  filter: grayscale(0%);
}

.obra-img-wrap .obra-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(13,13,13,.65) 0%, transparent 55%);
  opacity: 0; transition: opacity var(--transition);
}
.obra-card-btn:hover .obra-overlay { opacity: 1; }

.obra-tag-badge {
  position: absolute; top: .875rem; left: .875rem;
  background: var(--r); color: #fff;
  font-size: .55rem; letter-spacing: 2px; text-transform: uppercase; padding: 4px 9px;
}

.obra-card-info { padding: .875rem 0; }
.obra-card-info h3 {
  font-size: .95rem; font-weight: 700; letter-spacing: -.3px;
  color: var(--n); margin-bottom: .2rem;
  transition: color var(--transition);
}
.obra-card-btn:hover .obra-card-info h3 { color: var(--r); }
.obra-card-info p { font-size: .72rem; color: var(--g4); letter-spacing: 1px; text-transform: uppercase; }

/* Dots */
.carousel-dots {
  display: flex; gap: .5rem; justify-content: center; margin-top: 2rem;
}
.carousel-dot {
  width: 6px; height: 6px; background: var(--g6);
  border: none; border-radius: 50%; padding: 0; cursor: pointer;
  transition: all var(--transition);
}
.carousel-dot.active { background: var(--r); width: 20px; border-radius: 3px; }

/* ── CONTACTO ── */
#contacto { padding: 8rem 0; background: var(--off); }

.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; margin-bottom: 4rem;
}

#contacto .section-h2 { color: var(--n); }
#contacto .section-h2 em { color: var(--r); }

.contact-sub { color: var(--g3); font-size: .88rem; line-height: 1.7; margin-top: 1.25rem; }

.addr-cards {
  display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; margin-top: 2rem;
}
.addr-card {
  background: var(--w); border: 1px solid var(--g6); padding: 1.25rem;
}
.addr-card .ak { font-size: .58rem; letter-spacing: 2px; text-transform: uppercase; color: var(--r); margin-bottom: .5rem; }
.addr-card p { font-size: .82rem; color: var(--g3); line-height: 1.6; }

.video-label { font-size: .6rem; letter-spacing: 2.5px; text-transform: uppercase; color: var(--g4); margin-bottom: .625rem; display: block; }

.url-row { display: flex; margin-bottom: 1rem; }
.url-row input {
  flex: 1; background: var(--w); border: 1px solid var(--g6);
  border-right: none; color: var(--n); padding: 12px 14px;
  font-size: .82rem; outline: none; font-family: var(--font);
  transition: border-color var(--transition);
}
.url-row input:focus { border-color: var(--n); }
.url-row button {
  background: var(--n); color: #fff; border: 1px solid var(--n);
  padding: 12px 20px; font-size: .65rem; letter-spacing: 2px;
  text-transform: uppercase; font-family: var(--font);
  transition: background var(--transition);
}
.url-row button:hover { background: var(--r); border-color: var(--r); }

.video-box { aspect-ratio: 16/9; background: var(--n); position: relative; overflow: hidden; }

.video-ph {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 1rem; cursor: pointer;
}
.video-ph-icon {
  width: 60px; height: 60px; border: 1px solid #2a2a2a; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.video-ph:hover .video-ph-icon { border-color: var(--r); background: rgba(196,26,26,.1); }
.video-ph-icon svg { fill: #fff; width: 18px; height: 18px; margin-left: 3px; }
.video-ph p { font-size: .68rem; color: #444; letter-spacing: 2px; text-transform: uppercase; }

#iframeWrap { position: absolute; inset: 0; }
#iframeWrap iframe { width: 100%; height: 100%; border: none; }

.video-note { font-size: .72rem; color: var(--g4); margin-top: .75rem; line-height: 1.6; }
.video-note strong { color: var(--r); }

/* Datos empresa */
#datos-empresa { display: none; padding-top: 0; padding-bottom: 0; margin-bottom: 3rem; }
#datos-empresa.visible { display: block; animation: fadeUp .4s ease; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.datos-title {
  font-size: .6rem; letter-spacing: 3px; text-transform: uppercase;
  color: var(--r); margin-bottom: 1.5rem; display: flex; align-items: center; gap: 12px;
}
.datos-title::after { content: ''; flex: 1; height: 1px; background: var(--g6); }

.datos-grid { display: grid; grid-template-columns: 1fr 1fr; }

.dato-line {
  display: flex; align-items: center; gap: 1rem;
  padding: .875rem 0; border-bottom: 1px solid var(--g6);
}
.dato-ico {
  width: 32px; height: 32px; background: var(--off);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.dato-ico svg { width: 14px; height: 14px; fill: var(--g4); stroke: none; }
.dl { font-size: .58rem; letter-spacing: 1px; text-transform: uppercase; color: var(--g4); margin-bottom: 1px; }
.dv { font-size: .85rem; color: var(--n); }
.dv a { transition: color var(--transition); }
.dv a:hover { color: var(--r); }

/* QR */
.qr-row {
  display: grid; grid-template-columns: auto 1fr;
  gap: 3rem; align-items: center;
  border-top: 1px solid var(--g6); padding-top: 3.5rem;
}
.qr-panel {
  background: var(--w); border: 1px solid var(--g6);
  padding: 1.75rem; text-align: center;
}
.qr-panel > p { font-size: .58rem; letter-spacing: 2.5px; text-transform: uppercase; color: var(--g4); margin-bottom: 1.25rem; }
.qr-url { font-size: .62rem; color: var(--g5); letter-spacing: 1px; margin-top: .875rem; }
.qr-headline {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 800; letter-spacing: -1px; line-height: 1.15;
  color: var(--n); margin-bottom: .75rem;
}
.qr-sub { font-size: .82rem; color: var(--g3); line-height: 1.7; }

/* ── FOOTER ── */
footer {
  background: var(--n); border-top: 1px solid #1a1a1a; padding: 1.75rem 0;
}
.footer-inner {
  max-width: var(--max); margin: 0 auto; padding: 0 3rem;
  display: flex; justify-content: space-between; align-items: center;
}
.footer-copy { font-size: .65rem; letter-spacing: .5px; color: #3a3a3a; }
.footer-copy strong { color: var(--r); }
.footer-links { display: flex; gap: 2rem; }
.footer-links a { font-size: .62rem; letter-spacing: 1.5px; text-transform: uppercase; color: #3a3a3a; transition: color var(--transition); }
.footer-links a:hover { color: #fff; }

/* ── MODAL OBRA ── */
.obra-modal {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  padding: 1.5rem;
}
.obra-modal[hidden] { display: none; }

.modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,.75); backdrop-filter: blur(4px);
}

.modal-content {
  position: relative; z-index: 1;
  background: var(--w); max-width: 760px; width: 100%;
  max-height: 90vh; overflow-y: auto;
  animation: modalIn .3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(.96) translateY(12px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
  position: absolute; top: 1rem; right: 1rem;
  width: 36px; height: 36px; background: rgba(0,0,0,.5);
  color: #fff; font-size: .9rem; z-index: 2;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%; transition: background var(--transition);
}
.modal-close:hover { background: var(--r); }

.modal-hero { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.modal-hero img { width: 100%; height: 100%; object-fit: cover; }
.modal-hero .obra-tag-badge { top: 1rem; left: 1rem; }

.modal-body { padding: 2rem 2.5rem 2.5rem; }
.modal-body h2 { font-size: 1.6rem; font-weight: 900; letter-spacing: -1px; margin: .3rem 0 1rem; }
.modal-body > p { color: var(--g3); font-size: .9rem; line-height: 1.75; margin-bottom: 1.5rem; }

.modal-details { display: flex; flex-direction: column; gap: .5rem; margin-bottom: 2rem; }
.modal-details li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: .82rem; color: var(--g3); line-height: 1.5;
}
.modal-details li::before { content: '→'; color: var(--r); flex-shrink: 0; font-size: .75rem; margin-top: 2px; }
/* ==============================================
   Pantallas grandes (≥ 1600px)
   ============================================== */
@media (min-width: 1600px) {
  :root { --max: 1400px; }
  .hero-inner { max-width: calc(1400px + 6rem); }
}


/* ==============================================
   Tablet landscape / laptop chico (≤ 1024px)
   ============================================== */
@media (max-width: 1024px) {

  .section-inner { padding: 0 2rem; }

  /* Nav */
  #navbar { padding: 0 2rem; }
  .nav-links { gap: 1.5rem; }

  /* Hero */
  .hero-inner { padding: 0 2rem 4rem; }

  /* Nosotros */
  .nosotros-grid { gap: 3rem; }

  /* Servicios */
  .serv-grid { gap: 3.5rem 2rem; }

  /* Carrusel — sigue mostrando 3 */
  .obra-card { flex: 0 0 calc((100% - 3rem) / 3); }

  /* Contacto */
  .contact-grid { gap: 3rem; }
}


/* ==============================================
   Tablet portrait (≤ 768px)
   ============================================== */
@media (max-width: 768px) {

  .section-inner { padding: 0 1.5rem; }

  /* Nav */
  #navbar { padding: 0 1.5rem; height: 58px; }
  .nav-links { gap: 1.25rem; }
  .nav-links a { font-size: .6rem; letter-spacing: 1px; }
  .nav-cta { padding: 8px 14px; font-size: .6rem; }

  /* Hero */
  .hero-inner { padding: 0 1.5rem 3.5rem; }
  .hero-h1 { font-size: clamp(2.5rem, 7vw, 4rem); letter-spacing: -1.5px; }
  .hero-desc { font-size: .85rem; }
  .hero-cta { gap: 1rem; }

  /* Nosotros */
  #nosotros { padding: 6rem 0; }
  .nosotros-grid { grid-template-columns: 1fr; gap: 3rem; }
  .nosotros-fotos { max-width: 520px; margin: 0 auto; width: 100%; }
  .nosotros-title { font-size: clamp(2rem, 7vw, 3rem) !important; }

  /* Servicios — 2 columnas, mismo fondo negro */
  #servicios { padding: 6rem 0; }
  .serv-grid { grid-template-columns: repeat(2, 1fr); gap: 3rem 2rem; }

  /* Carrusel — 2 visibles, sin flechas */
  #obras { padding: 6rem 0; }
  .obra-card { flex: 0 0 calc((100% - 1.5rem) / 2); }
  .carousel-controls { display: none; }
  .carousel-wrapper { cursor: grab; }
  .carousel-wrapper:active { cursor: grabbing; }
  .obras-header { align-items: flex-start; }

  /* Contacto */
  #contacto { padding: 6rem 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; margin-bottom: 3rem; }

  /* Datos */
  .datos-grid { grid-template-columns: 1fr; }

  /* Video responsivo */
  .video-container {
    position: relative; width: 100%;
    padding-bottom: 56.25%; height: 0; overflow: hidden;
  }
  .video-container iframe {
    position: absolute; top: 0; left: 0;
    width: 100%; height: 100%; border: 0;
  }

  /* Mapa */
  .map-full-width iframe { height: 320px; }
  /* Footer */
  .footer-inner { flex-direction: column; gap: 1rem; text-align: center; }
  .footer-links { justify-content: center; flex-wrap: wrap; gap: 1.25rem; }

  /* Modal */
  .modal-body { padding: 1.5rem 1.75rem 2rem; }
}


/* ==============================================
   Mobile (≤ 480px)
   ============================================== */
@media (max-width: 480px) {

  .section-inner { padding: 0 1.25rem; }

  /* Nav — ocultar links, mantener logo + CTA */
  #navbar { padding: 0 1.25rem; height: 54px; }
  .logo-img { height: 36px; }
  .logo-text { display: none; }
  .nav-links { display: none; }
  .nav-cta { font-size: .62rem; padding: 9px 16px; letter-spacing: 1.5px; }

  /* Hero */
  #inicio { min-height: 100svh; }
  .hero-inner { padding: 0 1.25rem 3rem; }
  .hero-h1 {
    font-size: clamp(2.2rem, 12vw, 2.8rem);
    letter-spacing: -1px;
    max-width: 100%;
  }
  .hero-desc { font-size: .82rem; max-width: 100%; }
  .hero-cta { flex-direction: column; align-items: flex-start; gap: .875rem; }
  .btn-primary { width: 100%; text-align: center; padding: 14px; }
  .hero-scroll { display: none; }

  /* Ticker */
  .ticker { height: 32px; }
  .ticker-track { gap: 1.5rem; }
  .ticker-track span { font-size: .52rem; letter-spacing: 2px; }

  /* Nosotros */
  #nosotros { padding: 5rem 0; }
  .foto-top { aspect-ratio: 3/2; }
  .foto-bottom-left,
  .foto-bottom-right { aspect-ratio: 1/1; }
  .nosotros-title { font-size: clamp(1.8rem, 10vw, 2.6rem) !important; margin-bottom: 1.25rem; }
  .nosotros-p { font-size: .85rem; line-height: 1.75; }
  .nosotros-nums { gap: 0; }
  .nosotros-num { padding-right: .75rem; }
  .nosotros-num + .nosotros-num { padding-left: .75rem; }
  .num-big { font-size: clamp(1.5rem, 8vw, 2rem); letter-spacing: -1px; }
  .num-label { font-size: .48rem; letter-spacing: 1px; }

  /* Servicios — 1 columna, fondo negro intacto */
  #servicios { padding: 5rem 0; }
  .serv-header { margin-bottom: 2.5rem; }
  .serv-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .serv-icon-wrap { width: 72px; height: 72px; margin-bottom: 1.25rem; }
  .serv-card-title { font-size: 1rem; }
  .serv-card-desc { font-size: .85rem; }

  /* Carrusel — 1 visible, sin flechas, swipe táctil */
  #obras { padding: 5rem 0; }
  .obras-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .obra-card { flex: 0 0 100%; }
  .carousel-controls { display: none; }

  /* Contacto */
  #contacto { padding: 5rem 0; }
  .contact-grid { gap: 2.5rem; margin-bottom: 2rem; }
  .addr-cards { grid-template-columns: 1fr; }

  /* Mapa */
  .map-full-width iframe { height: 260px; }

  /* Modal — sube desde abajo */
  .obra-modal { padding: 0; align-items: flex-end; }
  .modal-content {
    max-width: 100%; width: 100%;
    max-height: 92svh;
    border-radius: 12px 12px 0 0;
  }
  .modal-hero { aspect-ratio: 16/9; }
  .modal-body { padding: 1.25rem 1.25rem 2rem; }
  .modal-body h2 { font-size: 1.2rem; }
  .modal-body > p { font-size: .85rem; }
  .modal-close { top: .75rem; right: .75rem; }
}