/* VARIABLES DE COLOR Y ESTILOS BASE */
:root {
  --color-azul-marino: #0b1f3b;
  --color-azul-acento: #1f4f8f;
  --color-gris-cemento: #d0d3d8;
  --color-gris-suave: #f2f3f5;
  --color-blanco: #ffffff;
  --color-texto: #1b1f23;
}

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

body {
  margin: 0;
  font-family: "Montserrat", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--color-texto);
  background-color: var(--color-gris-suave);
  line-height: 1.5;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

/* SECCIONES GENERALES */
.section {
  padding: 5rem 7vw;
}

.section-header {
  max-width: 720px;
  margin: 0 auto 3rem auto;
  text-align: center;
}

.section-header h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--color-azul-marino);
}

.section-header p {
  color: #555;
}

/* BOTONES */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.8rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.btn-primary {
  background: var(--color-azul-acento);
  color: var(--color-blanco);
  box-shadow: 0 10px 25px rgba(12, 35, 71, 0.4);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 35px rgba(12, 35, 71, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--color-azul-acento);
  border: 1px solid rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-full {
  width: 100%;
}

/* HEADER Y HERO */
.main-header {
  padding: 1.5rem 7vw 5rem 7vw;
  background: radial-gradient(circle at top left, #1f4f8f 0, #0b1f3b 45%, #020817 100%);
  color: var(--color-blanco);
  border-bottom-left-radius: 32px;
  border-bottom-right-radius: 32px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 3rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-text {
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
  opacity: 0.9;
}

/* Logo en header */
.logo-img {
  height: 40px;
  display: block;
}

/* Logo en footer */
.footer-logo {
  height: 32px;
  margin-bottom: 0.8rem;
  opacity: 0.85;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.9rem;
}

.nav-links a {
  opacity: 0.8;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  background: #39a0ff;
  transition: width 0.2s ease;
}

.nav-links a:hover {
  opacity: 1;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2.4rem, 3vw + 1rem, 3.1rem);
  margin-bottom: 1rem;
}

.hero-content p {
  max-width: 520px;
  opacity: 0.85;
  margin-bottom: 1.8rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.badge {
  display: flex;
  flex-direction: column;
}

.badge-number {
  font-size: 1.4rem;
  font-weight: 700;
}

.badge-label {
  font-size: 0.8rem;
  opacity: 0.8;
}

.hero-image-card {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  background: rgba(3, 7, 18, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
}

.hero-image {
  height: 320px;
  background-size: cover;
  background-position: center;
  filter: contrast(1.05) saturate(1.05);
}

.hero-overlay {
  position: absolute;
  left: 1.6rem;
  bottom: 1.6rem;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.78);
  border: 1px solid rgba(148, 163, 184, 0.6);
  backdrop-filter: blur(12px);
}

.overlay-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.8;
  margin: 0 0 0.2rem 0;
}

.overlay-subtitle {
  font-size: 0.9rem;
  margin: 0;
}

/* SERVICIOS */
.section-services {
  background: var(--color-blanco);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--color-gris-suave);
  border-radius: 18px;
  padding: 1.5rem;
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.05);
}

.service-card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  color: var(--color-azul-marino);
}

.service-card p {
  font-size: 0.9rem;
  color: #555;
}

/* PROYECTOS */
.section-projects {
  background: linear-gradient(to bottom, #eef1f6, #f8fafc);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--color-blanco);
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  display: flex;
  flex-direction: column;
}

.project-image {
  height: 180px;
  background-size: cover;
  background-position: center;
}

.project-content {
  padding: 1.4rem 1.5rem 1.5rem 1.5rem;
}

.project-content h3 {
  margin: 0 0 0.5rem 0;
  color: var(--color-azul-marino);
}

.project-type {
  margin: 0 0 0.5rem 0;
  font-size: 0.85rem;
  color: #6b7280;
}

.project-desc {
  margin: 0;
  font-size: 0.9rem;
  color: #4b5563;
}

/* COTIZACIÓN */
.section-quote {
  background: var(--color-blanco);
}

.quote-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.quote-text h2 {
  font-size: 2rem;
  color: var(--color-azul-marino);
  margin-bottom: 1rem;
}

.quote-text p {
  color: #4b5563;
  margin-bottom: 1.5rem;
}

.quote-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.quote-list li {
  margin-bottom: 0.6rem;
  padding-left: 1.3rem;
  position: relative;
  font-size: 0.95rem;
}

.quote-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--color-azul-acento);
  position: absolute;
  left: 0;
  top: 0.4rem;
}

.quote-form-card {
  background: var(--color-gris-suave);
  border-radius: 20px;
  padding: 2rem;
  border: 1px solid rgba(148, 163, 184, 0.5);
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.12);
}

.quote-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: #374151;
}

.form-group input,
.form-group select,
.form-group textarea {
  border-radius: 12px;
  border: 1px solid #cbd5f1;
  padding: 0.7rem 0.9rem;
  font-size: 0.9rem;
  font-family: inherit;
  background: var(--color-blanco);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-azul-acento);
  box-shadow: 0 0 0 1px rgba(31, 79, 143, 0.3);
}

.form-note {
  font-size: 0.75rem;
  color: #6b7280;
  margin-top: 0.3rem;
}

/* CONTACTO */
.section-contact {
  background: linear-gradient(to bottom, #0b1f3b, #020617);
  color: var(--color-blanco);
}

.section-contact .section-header h2 {
  color: var(--color-blanco);
}

.section-contact .section-header p {
  color: rgba(226, 232, 240, 0.88);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.contact-item h3 {
  margin-top: 0;
  margin-bottom: 0.4rem;
  font-size: 1rem;
}

.contact-item p {
  margin: 0;
  font-size: 0.95rem;
  color: rgba(226, 232, 240, 0.9);
}

/* FOOTER */
.main-footer {
  padding: 1.5rem 7vw 2.5rem 7vw;
  text-align: center;
  font-size: 0.8rem;
  color: #9ca3af;
  background: #020617;
}

/* RESPONSIVE */
@media (max-width: 992px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-image-card {
    order: -1;
  }

  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .quote-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  .nav-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .nav-links {
    flex-wrap: wrap;
    font-size: 0.85rem;
  }

  .section {
    padding: 3.5rem 6vw;
  }

  .services-grid,
  .projects-grid,
  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-image {
    height: 260px;
  }

  .quote-form-card {
    padding: 1.5rem;
  }
}