/* ============================================
   SINELEC - style.css
   ============================================ */

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

:root {
  --color-primario:   #003087;
  --color-secundario: #e30613;
  --color-oscuro:     #001a4d;
  --color-gris:       #f5f5f5;
  --color-texto:      #333333;
  --transition:       0.3s ease;
  --sombra:           0 4px 20px rgba(0,0,0,0.12);
}

html { scroll-behavior: smooth; }
body { font-family: 'Segoe UI', Arial, sans-serif; color: var(--color-texto); background: #fff; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ─── NAVBAR — siempre blanco ─────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: #ffffff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.10);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 28px;
  gap: 16px;
}

.navbar-logo img { height: 50px; width: auto; }

.nav-menu { display: flex; list-style: none; gap: 28px; }

.nav-menu a {
  color: var(--color-oscuro);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  transition: color var(--transition);
}

.nav-menu a:hover { color: var(--color-primario); }

.navbar-iconos { display: flex; align-items: center; gap: 14px; }

.navbar-iconos a {
  color: var(--color-oscuro);
  font-size: 1rem;
  transition: color var(--transition);
}

.navbar-iconos a:hover { color: var(--color-primario); }

.burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.burger span { display: block; width: 24px; height: 2px; background: var(--color-oscuro); border-radius: 2px; }

/* ─── HERO ────────────────────────────────── */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 500px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-oscuro);
}

.hero-videos { position: absolute; inset: 0; }

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.hero-video.activo { opacity: 1; }

/* Imagen de respaldo cuando no hay video */
.hero-bg-imagen {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 26, 77, 0.60);
  z-index: 1;
}

.hero-contenido {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding: 80px 20px 0;
  max-width: 800px;
}

.hero-contenido h1 {
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.hero-contenido p {
  font-size: clamp(0.95rem, 2vw, 1.2rem);
  margin-bottom: 32px;
  opacity: 0.92;
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

.btn-hero {
  display: inline-block;
  background: var(--color-primario);
  color: #fff;
  padding: 14px 36px;
  border-radius: 40px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 1px;
  transition: background var(--transition), transform var(--transition);
}

.btn-hero:hover { background: var(--color-secundario); transform: translateY(-2px); }

/* ─── MARCAS ──────────────────────────────── */
.marcas { padding: 36px 0; background: #fff; border-bottom: 1px solid #eee; }

.marcas-grupo {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 16px;
}

.marcas-grupo:last-child { margin-bottom: 0; }
.marcas-grupo span { font-size: 0.85rem; color: #666; font-weight: 600; white-space: nowrap; }
.marcas-grupo img { height: 36px; width: auto; object-fit: contain; filter: grayscale(30%); transition: filter var(--transition); }
.marcas-grupo img:hover { filter: grayscale(0%); }

/* ─── NOSOTROS ────────────────────────────── */
.nosotros { padding: 80px 0; background: #fff; }

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

.nosotros-texto h2 {
  font-size: 1.8rem;
  color: var(--color-primario);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--color-primario);
  display: inline-block;
}

.nosotros-texto p { font-size: 0.97rem; line-height: 1.8; color: #444; text-align: justify; }
.nosotros-imagen img { border-radius: 8px; box-shadow: var(--sombra); width: 100%; object-fit: cover; }

/* Sección alternada — imagen a la izquierda */
.nosotros-inverso { background: var(--color-gris); }

/* ─── SERVICIOS ───────────────────────────── */
.servicios { padding: 70px 0 0; background: var(--color-primario); }
.servicios-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.servicio-card {
  text-align: center; color: #fff;
  padding: 32px 16px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px;
  cursor: pointer;
  position: relative;
  transition: background var(--transition);
}
.servicio-card:hover { background: rgba(255,255,255,0.15); }
.servicio-card.activo { background: rgba(255,255,255,0.18); border-color: rgba(255,255,255,0.6); }
.servicio-card i { font-size: 2.2rem; margin-bottom: 16px; display: block; }
.servicio-card h3 { font-size: 1rem; font-weight: 700; letter-spacing: 1px; margin-bottom: 8px; }
.servicio-card p { font-size: 0.88rem; opacity: 0.85; }
.srv-arrow { display: block; margin-top: 12px; font-size: 0.8rem; opacity: 0.7; transition: transform 0.3s; }
.servicio-card.activo .srv-arrow { transform: rotate(180deg); opacity: 1; }

/* ─── PANEL ACORDEÓN ─────────────────────── */
.srv-panel { display: none; background: #fff; width: 100%; }
.srv-panel.abierto { display: block; }
.srv-panel-inner { padding: 48px 0; }
.srv-panel-inner h3 { font-size: 1.4rem; font-weight: 800; color: var(--color-primario); margin-bottom: 28px; display: flex; align-items: center; gap: 10px; }

.srv-items { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-bottom: 32px; }

.srv-item {
  background: #f4f7fc;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #e0eaf5;
  cursor: pointer;
  transition: box-shadow 0.2s, transform 0.2s;
  position: relative;
}
.srv-item:hover { box-shadow: 0 6px 24px rgba(0,48,135,0.13); transform: translateY(-2px); }
.srv-item img { width: 100%; height: 160px; object-fit: cover; }
.srv-item-texto { padding: 16px; }
.srv-item-texto h4 { font-size: 0.95rem; font-weight: 700; color: var(--color-primario); margin-bottom: 6px; }
.srv-item-texto p { font-size: 0.85rem; color: #555; line-height: 1.6; }
.srv-item-ver { display: block; text-align: center; padding: 10px; font-size: 0.78rem; font-weight: 700; color: var(--color-primario); background: #e8f0fe; }

.srv-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--color-primario); color: #fff;
  padding: 14px 32px; border-radius: 40px;
  font-weight: 700; font-size: 0.95rem;
  text-decoration: none; transition: all 0.2s;
}
.srv-btn:hover { background: var(--color-secundario); transform: translateY(-2px); }

/* ─── MODAL DETALLE ──────────────────────── */
.srv-modal {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.65);
  z-index: 2000;
  align-items: center; justify-content: center;
  padding: 20px;
}
.srv-modal.abierto { display: flex; }

.srv-modal-box {
  background: #fff;
  border-radius: 16px;
  max-width: 760px; width: 100%;
  max-height: 85vh; overflow-y: auto;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  animation: modal-in 0.25s ease;
}
@keyframes modal-in {
  from { opacity: 0; transform: translateY(30px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.srv-modal-close {
  position: absolute; top: 14px; right: 14px;
  background: #f0f0f0; border: none;
  width: 34px; height: 34px; border-radius: 50%;
  font-size: 0.9rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s; z-index: 10;
}
.srv-modal-close:hover { background: #e30613; color: #fff; }

.srv-modal-inner { padding: 40px; }

.srv-modal-item {
  display: flex; gap: 24px; align-items: flex-start;
  background: #f8faff; border-radius: 10px;
  overflow: hidden; border: 1px solid #e4edf8;
  margin-bottom: 28px;
}
.srv-modal-item img { width: 220px; min-width: 220px; height: 180px; object-fit: cover; flex-shrink: 0; }
.srv-modal-texto { padding: 24px 24px 24px 0; flex: 1; }
.srv-modal-texto h4 { font-size: 1.1rem; font-weight: 700; color: var(--color-primario); margin-bottom: 10px; }
.srv-modal-texto p { font-size: 0.92rem; color: #444; line-height: 1.8; }


/* ─── CLIENTES CARRUSEL ───────────────────── */
.clientes { padding: 70px 0; background: var(--color-gris); }
.clientes h2 { text-align: center; font-size: 1.8rem; color: var(--color-primario); margin-bottom: 40px; }

.carrusel-wrapper {
  overflow: hidden;
  width: 100%;
  position: relative;
}

.carrusel-track {
  display: flex;
  gap: 20px;
  animation: scroll-carrusel 35s linear infinite;
  width: max-content;
}

.carrusel-track:hover { animation-play-state: paused; }

.carrusel-item {
  background: #fff;
  border-radius: 10px;
  width: 180px;
  height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.07);
  flex-shrink: 0;
}

.carrusel-item img {
  max-width: 100%;
  max-height: 70px;
  width: auto;
  height: auto;
  object-fit: contain;
}

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

/* ─── CONTACTO ────────────────────────────── */
.contacto { padding: 80px 0; background: #fff; }
.contacto-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contacto-info h2 { font-size: 1.6rem; color: var(--color-primario); margin-bottom: 28px; font-weight: 700; }
.contacto-info p { font-size: 0.95rem; color: #444; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.contacto-info i { color: var(--color-primario); width: 18px; text-align: center; }
.contacto-form { display: flex; flex-direction: column; gap: 12px; }
.contacto-form input,
.contacto-form textarea {
  width: 100%; padding: 12px 14px;
  border: 1px solid #ddd; border-radius: 6px;
  font-size: 0.95rem; font-family: inherit;
  outline: none; transition: border var(--transition);
}
.contacto-form input:focus,
.contacto-form textarea:focus { border-color: var(--color-primario); }
.contacto-form textarea { resize: vertical; min-height: 120px; }
.contacto-form button {
  padding: 14px; background: var(--color-primario); color: #fff;
  border: none; border-radius: 6px; font-size: 1rem; font-weight: 700;
  cursor: pointer; letter-spacing: 1px; transition: background var(--transition);
}
.contacto-form button:hover { background: var(--color-oscuro); }
.contacto-form button:disabled { opacity: 0.6; cursor: not-allowed; }
.form-mensaje { padding: 12px 14px; border-radius: 6px; font-size: 0.9rem; font-weight: 600; }
.form-mensaje.ok    { background: #e6f9ee; color: #1a7a3c; }
.form-mensaje.error { background: #ffe5e5; color: #c0392b; }

/* ─── FOOTER ──────────────────────────────── */
.footer { background: #0a0a0a; color: #ccc; padding: 50px 0 0; }
.footer-inner { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-titulo { color: #fff; font-weight: 700; font-size: 0.85rem; letter-spacing: 1px; margin-bottom: 16px; }
.footer-col a, .footer-col p { display: block; font-size: 0.88rem; color: #aaa; margin-bottom: 8px; transition: color var(--transition); }
.footer-col a:hover { color: #fff; }
.footer-redes { display: flex; gap: 16px; align-items: flex-start; padding-top: 32px; }
.footer-redes a { color: #aaa; font-size: 1.1rem; transition: color var(--transition); }
.footer-redes a:hover { color: #fff; }
.footer-copy { border-top: 1px solid #222; padding: 18px 28px; text-align: center; font-size: 0.82rem; color: #666; }
.footer-copy a { color: #888; transition: color var(--transition); }
.footer-copy a:hover { color: #fff; }
.footer-copy p + p { margin-top: 6px; font-size: 0.75rem; }

/* ─── WHATSAPP FLOTANTE ───────────────────── */
.whatsapp-flotante {
  position: fixed; bottom: 24px; right: 24px; z-index: 999;
  background: #25d366; color: #fff; width: 54px; height: 54px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; box-shadow: 0 4px 16px rgba(37,211,102,0.4);
  transition: transform var(--transition);
}
.whatsapp-flotante:hover { transform: scale(1.1); }

@media (max-width: 992px) {
  .servicios-grid { grid-template-columns: repeat(2, 1fr); }
  .nosotros-inner, .contacto-inner { grid-template-columns: 1fr; gap: 36px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .srv-items { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; padding: 20px 28px; gap: 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  }
  .nav-menu.abierto { display: flex; }
  .burger { display: flex; }
  .navbar-iconos { display: none; }
  .servicios-grid { grid-template-columns: 1fr 1fr; }
  .srv-modal-item { flex-direction: column; }
  .srv-modal-item img { width: 100%; min-width: unset; height: 180px; }
  .srv-modal-texto { padding: 16px; }
  .srv-modal-inner { padding: 24px; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .footer-redes { padding-top: 0; }
}

@media (max-width: 480px) {
  .servicios-grid { grid-template-columns: 1fr; }
  .marcas-grupo { gap: 16px; }
}