/* === VARIABLES === */
:root {
  --bg:        #0d0d0d;
  --bg-card:   #161616;
  --bg-dark:   #111111;
  --red:       #cc0000;
  --red-hover: #e60000;
  --white:     #ffffff;
  --gray:      #aaaaaa;
  --border:    #2a2a2a;
  --font-head: 'Oswald', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  --nav-h:     70px;
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* === UTILITIES === */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.accent { color: var(--red); }
.section { padding: 90px 0; }
.section-dark { background: var(--bg-dark); }

.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-header h2 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}
.section-sub {
  color: var(--gray);
  margin-top: 12px;
  font-size: 1.05rem;
}
.divider {
  width: 60px;
  height: 4px;
  background: var(--red);
  margin: 0 auto;
}

/* === BUTTONS === */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 4px;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
}
.btn-primary:hover {
  background: var(--red-hover);
  border-color: var(--red-hover);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn-outline:hover {
  background: var(--white);
  color: var(--bg);
}
.btn-whatsapp {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: #25d366;
  color: var(--white);
  border-radius: 4px;
  padding: 14px 24px;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: background 0.2s;
  margin-top: 32px;
  width: 100%;
  text-align: center;
}
.btn-whatsapp:hover { background: #1ebe5a; }
.btn-full { width: 100%; text-align: center; }

/* === NAVBAR === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: background 0.3s;
}
.navbar.scrolled { background: rgba(13, 13, 13, 0.99); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
}
.nav-logo img {
  height: 48px;
  width: auto;
  border-radius: 4px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-menu a {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--gray);
  transition: color 0.2s;
}
.nav-menu a:hover { color: var(--white); }
.nav-menu .nav-cta {
  background: var(--red);
  color: var(--white);
  padding: 8px 20px;
  border-radius: 4px;
  transition: background 0.2s;
}
.nav-menu .nav-cta:hover { background: var(--red-hover); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  transition: all 0.3s;
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: url('../hero_bg.jpg') center center / cover no-repeat;
  padding-top: var(--nav-h);
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.80) 0%, rgba(13,0,0,0.70) 60%, rgba(0,0,0,0.65) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 60px 24px;
}
.hero-logo {
  width: 200px;
  height: 200px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--red);
  margin-bottom: 32px;
  box-shadow: 0 0 40px rgba(204, 0, 0, 0.3);
}
.hero-tagline {
  font-family: var(--font-head);
  font-size: 1rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 16px;
}
.hero-headline {
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.1;
  margin-bottom: 24px;
}
.hero-sub {
  color: var(--gray);
  font-size: 1.1rem;
  max-width: 560px;
  margin-bottom: 40px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}
.btn-hero-cta {
  font-size: 1.15rem;
  padding: 18px 44px;
  box-shadow: 0 4px 24px rgba(204, 0, 0, 0.5);
}

/* === NOSOTROS === */
.nosotros-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.nosotros-text p {
  color: var(--gray);
  margin-bottom: 20px;
  font-size: 1.05rem;
}
.nosotros-text strong { color: var(--white); }
.nosotros-valores {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.valor-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.valor-icon {
  font-size: 1.8rem;
  color: var(--red);
  flex-shrink: 0;
  width: 40px;
  text-align: center;
}
.valor-item h4 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.valor-item p { color: var(--gray); font-size: 0.95rem; }

/* === SERVICIOS === */
.servicios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.servicio-card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s;
  min-height: 420px;
  display: flex;
  flex-direction: column;
}
.servicio-card:hover {
  transform: translateY(-6px);
  border-color: var(--red);
}
.servicio-card:hover .card-bg {
  opacity: 0.25;
}
.card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  transition: opacity 0.3s;
  z-index: 0;
}
.card-camaras .card-bg { background-image: url('../camara_img_1.jpg'); }
.card-cercos  .card-bg { background-image: url('../cerco_img_1.jpeg'); }
.card-alarmas .card-bg { background-image: url('../alarma_img_1.jpeg'); }
.card-body {
  position: relative;
  z-index: 1;
  padding: 40px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.servicio-card.featured {
  border-color: var(--red);
}
.servicio-card.featured::before {
  content: 'Más solicitado';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  background: var(--red);
  color: var(--white);
  font-family: var(--font-head);
  font-size: 0.75rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 16px;
  border-radius: 0 0 6px 6px;
  z-index: 2;
}
.servicio-icon {
  font-size: 2.8rem;
  margin-bottom: 20px;
}
.servicio-card h3 {
  font-family: var(--font-head);
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
  color: var(--white);
}
.servicio-card p {
  color: var(--gray);
  font-size: 0.95rem;
  margin-bottom: 20px;
}
.servicio-card ul { display: flex; flex-direction: column; gap: 8px; }
.servicio-card li {
  color: var(--gray);
  font-size: 0.9rem;
  padding-left: 16px;
  position: relative;
}
.servicio-card li::before {
  content: '—';
  color: var(--red);
  position: absolute;
  left: 0;
}

/* === SERVICIO TÉCNICO === */
.tecnico-content {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 60px;
  align-items: center;
}
.tecnico-text p {
  color: var(--gray);
  margin-bottom: 20px;
  font-size: 1.05rem;
}
.tecnico-items {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 24px;
  margin: 28px 0;
}
.tecnico-item {
  color: var(--gray);
  font-size: 0.95rem;
}
.tecnico-item .accent { margin-right: 6px; font-weight: 700; }
.tecnico-cta { margin-top: 8px; }
.tecnico-badge {
  display: flex;
  align-items: center;
  justify-content: center;
}
.badge-inner {
  background: var(--bg-card);
  border: 2px solid var(--red);
  border-radius: 12px;
  padding: 48px 36px;
  text-align: center;
  box-shadow: 0 0 40px rgba(204, 0, 0, 0.15);
}
.badge-icon { font-size: 3.5rem; margin-bottom: 20px; }
.badge-title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
  color: var(--white);
}
.badge-sub { color: var(--gray); font-size: 0.95rem; }

/* === CONTACTO === */
.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 60px;
  align-items: start;
}
.contacto-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-group label {
  font-family: var(--font-head);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gray);
}
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 12px 16px;
  transition: border-color 0.2s;
  outline: none;
  width: 100%;
}
.form-group select { appearance: none; cursor: pointer; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--red); }
.form-group input::placeholder,
.form-group textarea::placeholder { color: #555; }
.form-group textarea { resize: vertical; min-height: 120px; }
.whatsapp-icon { margin-right: 6px; }
.form-note {
  text-align: center;
  color: #555;
  font-size: 0.85rem;
  margin-top: -8px;
}
.contacto-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding-top: 8px;
}
.info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.info-icon { font-size: 1.6rem; flex-shrink: 0; }
.info-item h4 {
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.95rem;
  margin-bottom: 4px;
  color: var(--white);
}
.info-item p, .info-item a {
  color: var(--gray);
  font-size: 0.95rem;
  transition: color 0.2s;
}
.info-item a:hover { color: var(--red); }

/* === FOOTER === */
.footer {
  background: #080808;
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}
.footer-logo {
  width: 70px;
  height: 70px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--red);
}
.footer-tagline {
  font-family: var(--font-head);
  font-size: 1rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gray);
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px 32px;
}
.footer-nav a {
  font-family: var(--font-head);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gray);
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--red); }
.footer-copy { color: #444; font-size: 0.82rem; }

/* === WHATSAPP FAB === */
.whatsapp-fab {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: transform 0.2s, box-shadow 0.2s;
}
.whatsapp-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.55);
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .nosotros-grid,
  .servicios-grid,
  .tecnico-content,
  .contacto-grid { grid-template-columns: 1fr; }

  .servicios-grid { gap: 20px; }
  .tecnico-badge { display: none; }
  .contacto-grid { gap: 40px; }

  .nav-menu {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(13, 13, 13, 0.98);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }
  .nav-menu.open { display: flex; }
  .nav-toggle { display: flex; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .hero-logo { width: 150px; height: 150px; }
  .section { padding: 64px 0; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; text-align: center; }
  .tecnico-items { grid-template-columns: 1fr; }
}