/* ==========================================================================
   KALTRONIKA — hoja de estilos
   Paleta tomada del isologo: navy oscuro + cian eléctrico
   ========================================================================== */

:root {
  --kt-navy: #0b0f1a;
  --kt-navy-2: #121a2b;
  --kt-cyan: #2fe0e8;
  --kt-cyan-dark: #17b9c2;
  --kt-light: #f5f7fa;
  --kt-gray: #6b7280;
  --kt-radius: 14px;
  --kt-shadow: 0 10px 25px -8px rgba(11, 15, 26, 0.25);
  --kt-shadow-hover: 0 18px 35px -10px rgba(11, 15, 26, 0.35);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: #1c2230;
  background-color: #ffffff;
}

h1, h2, h3, h4, h5, .navbar-brand {
  font-family: "Poppins", "Inter", sans-serif;
  font-weight: 600;
  letter-spacing: 0.2px;
}

a {
  text-decoration: none;
}

/* ---------- Navbar ---------- */
.navbar-kt {
  background-color: rgba(11, 15, 26, 0.95);
  backdrop-filter: blur(6px);
  transition: box-shadow 0.25s ease;
}

.navbar-kt.is-scrolled {
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.25);
}

.navbar-kt .navbar-brand img {
  height: 84px;
  width: auto;
}

.navbar-kt .nav-link {
  color: #e7ecf5 !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  position: relative;
}

.navbar-kt .nav-link::after {
  content: "";
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0.25rem;
  height: 2px;
  background: var(--kt-cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.navbar-kt .nav-link:hover::after,
.navbar-kt .nav-link.active::after {
  transform: scaleX(1);
}

.btn-kt {
  background-color: var(--kt-cyan);
  border-color: var(--kt-cyan);
  color: var(--kt-navy);
  font-weight: 600;
}

.btn-kt:hover {
  background-color: var(--kt-cyan-dark);
  border-color: var(--kt-cyan-dark);
  color: var(--kt-navy);
}

.btn-kt-outline {
  background-color: transparent;
  border: 1.5px solid var(--kt-cyan);
  color: var(--kt-cyan) !important;
  font-weight: 600;
}

.btn-kt-outline:hover {
  background-color: var(--kt-cyan);
  color: var(--kt-navy) !important;
}

/* ---------- Hero / cover ---------- */
.cover {
  min-height: 72vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image:
    linear-gradient(180deg, rgba(11, 15, 26, 0.15) 0%, rgba(11, 15, 26, 0.05) 55%, rgba(11, 15, 26, 0.2) 100%),
    url("../img/hero-bg.jpg");
  background-size: cover;
  background-position: center;
  color: #ffffff;
  text-align: center;
  padding: 3rem 1rem;
}

.cover-small {
  min-height: 34vh;
}

.cover-content {
  background-color: rgba(11, 15, 26, 0.55);
  backdrop-filter: blur(3px);
  border-radius: var(--kt-radius);
  padding: 2rem 2.5rem;
  max-width: 720px;
}

.cover h1 img {
  max-width: 320px;
  width: 70vw;
  height: auto;
}

.cover p.lead {
  color: #c7d0e0;
  font-size: 1.15rem;
  max-width: 640px;
  margin: 0.75rem auto 1.5rem;
}

/* ---------- Secciones ---------- */
section {
  padding: 4.5rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-title h2 {
  font-size: 2rem;
  color: var(--kt-navy);
}

.section-title .accent-bar {
  width: 56px;
  height: 4px;
  background: var(--kt-cyan);
  margin: 0.75rem auto 1rem;
  border-radius: 2px;
}

.section-title p {
  color: var(--kt-gray);
  max-width: 560px;
  margin: 0 auto;
}

.bg-light-kt {
  background-color: var(--kt-light);
}

/* ---------- Cards de producto / cliente ---------- */
.card {
  border: 0;
  border-radius: var(--kt-radius);
  box-shadow: var(--kt-shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--kt-shadow-hover);
}

.card-img-top {
  display: block;
  height: 200px;
  object-fit: cover;
}

.photo-ampliable {
  cursor: zoom-in;
}

.carousel-item {
  position: relative;
}

.carousel-item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(11, 15, 26, 0.15);
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.card:hover .carousel-item.active::after {
  opacity: 1;
}

.modal-content img {
  max-height: 85vh;
  width: auto;
  margin: 0 auto;
  display: block;
}

.card .carousel-control-prev-icon,
.card .carousel-control-next-icon {
  width: 1.5rem;
  height: 1.5rem;
  background-size: 1.5rem;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.6));
}

.card .carousel-indicators {
  margin-bottom: 0.25rem;
}

.card .carousel-indicators [data-bs-target] {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin: 0 3px;
}

.card-img-contain {
  object-fit: contain;
  background-color: #0b0f1a;
  padding: 0.5rem;
}

.card-title {
  min-height: 3rem;
  color: var(--kt-navy);
}

.card-text {
  color: #444d5c;
}

.card-text.lead-text {
  min-height: auto;
}

/* ---------- Animación al hacer scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ---------- Footer ---------- */
footer.site-footer {
  background-color: var(--kt-navy);
  color: #c7d0e0;
  padding: 2.5rem 0 1.5rem;
}

footer.site-footer a {
  color: var(--kt-cyan);
}

footer.site-footer .visit-counter {
  font-size: 0.85rem;
  color: #7c879c;
}

.footer-secret-link {
  display: inline-block;
  width: 1.1em;
  text-align: center;
  color: rgba(199, 208, 224, 0.12);
  transition: color 0.2s ease;
}

.footer-secret-link:hover,
.footer-secret-link:focus {
  color: var(--kt-cyan);
}

/* ---------- Cartel de datos de obra (clientes) ---------- */
.obra-info {
  background-color: var(--kt-light);
  border-left: 3px solid var(--kt-cyan);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 0.5rem;
  row-gap: 0.15rem;
}

.obra-info dt {
  grid-column: 1;
  font-weight: 600;
  color: var(--kt-navy);
}

.obra-info dt::after {
  content: ":";
}

.obra-info dd {
  grid-column: 2;
  margin: 0;
  color: #444d5c;
}

/* ---------- Placeholder de foto de cliente ---------- */
.client-photo-placeholder {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--kt-navy-2), var(--kt-navy));
  color: var(--kt-cyan);
}

.client-photo-placeholder svg {
  width: 56px;
  height: 56px;
  opacity: 0.8;
}