:root {
  /* Paleta basada en el logo MARVEX */
  --color-bg: #02040a;
  --color-bg-alt: #050b16;
  --color-primary: #ff3b2f;                   /* rojo logo */
  --color-primary-soft: rgba(255, 59, 47, 0.18);
  --color-text: #e5e7eb;
  --color-muted: #9ca3af;
  --color-card: #050b16;
  --color-border: #122033;
  --color-accent: #1d4ed8;                   /* azul secundario */
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.5);
  --radius-lg: 18px;
  --radius-xl: 24px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: radial-gradient(circle at top, #020617 0, #020617 35%, #02040a 100%);
  color: var(--color-text);
}

/* Layout base */

.container {
  width: min(1120px, 100% - 2.5rem);
  margin-inline: auto;
}

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: radial-gradient(circle at top, #020617 0, #020617 40%, #050b16 100%);
  padding: 4.5rem 0;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.section-intro {
  max-width: 640px;
  color: var(--color-muted);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: linear-gradient(
    to bottom,
    rgba(2, 6, 23, 0.98),
    rgba(2, 10, 32, 0.96),
    transparent
  );
  border-bottom: 1px solid rgba(30, 64, 175, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
}

.logo-box {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-img {
  height: 56px;
  width: auto;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-title {
  font-weight: 800;
  letter-spacing: 0.12em;
  font-size: 1rem;
  text-transform: uppercase;
}

.logo-subtitle {
  font-size: 0.8rem;
  color: var(--color-muted);
}

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

.main-nav a {
  text-decoration: none;
  color: var(--color-muted);
  transition: color 0.2s ease, transform 0.2s ease;
}

.main-nav a:hover {
  color: var(--color-primary);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 0.25rem 0.6rem;
  color: var(--color-text);
  font-size: 1.1rem;
  cursor: pointer;
}

/* Hero */

.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: center;
  color: var(--color-text);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.7);
  transform: scale(1.02);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 0, rgba(255, 59, 47, 0.4), transparent 55%),
    radial-gradient(circle at 80% 0, rgba(37, 99, 235, 0.25), transparent 55%),
    linear-gradient(to bottom, rgba(8, 14, 32, 0.95), rgba(8, 14, 32, 0.98));
}

.hero-content {
  position: relative;
  padding: 5rem 0 4rem;
  max-width: 640px;
}

.hero h1 {
  font-size: clamp(2.1rem, 3vw, 2.8rem);
  margin-bottom: 1rem;
}

.hero p {
  color: var(--color-muted);
  margin-bottom: 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Botones */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.65rem 1.3rem;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: linear-gradient(to right, #ff3b2f, #fb6a3c);
  color: #020617;
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: rgba(148, 163, 184, 0.6);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Servicios */

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.service-card {
  background: radial-gradient(circle at top, #020617 0, #020617 45%, #050b16 100%);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  border: 1px solid rgba(51, 65, 85, 0.55);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.9);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.service-image-wrapper {
  border-radius: 1rem;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.service-image-wrapper img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  display: block;
  transform: scale(1.03);
  transition: transform 0.25s ease;
}

.service-card:hover .service-image-wrapper img {
  transform: scale(1.06);
}

.service-card h3 {
  margin: 0.15rem 0;
  font-size: 1rem;
}

.service-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* About */

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.4fr);
  gap: 2.2rem;
  align-items: center;
}

.about-highlights {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.highlight-item {
  background: radial-gradient(
    circle at top,
    var(--color-primary-soft),
    rgba(15, 23, 42, 0.98)
  );
  border-radius: var(--radius-lg);
  padding: 1rem;
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.highlight-number {
  display: block;
  font-weight: 700;
  font-size: 1.1rem;
}

.highlight-label {
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* Cobertura */

.coverage-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(0, 1.3fr);
  gap: 2rem;
  align-items: flex-start;
}

.coverage-list {
  padding-left: 1.1rem;
  color: var(--color-muted);
}

.coverage-card {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: 1.4rem;
  border: 1px solid rgba(148, 163, 184, 0.22);
  box-shadow: var(--shadow-soft);
}

/* TESTIMONIOS */

.testimonials-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.2fr);
  gap: 2.2rem;
  align-items: flex-start;
}

.testimonials-list {
  display: grid;
  gap: 1.2rem;
  margin-top: 1.6rem;
}

.testimonial-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.3rem;
  border: 1px solid rgba(148, 163, 184, 0.3);
  box-shadow: 0 18px 35px rgba(15, 23, 42, 0.9);
}

.testimonial-stars {
  font-size: 0.9rem;
  color: #facc15; /* amarillo dorado */
  margin-bottom: 0.35rem;
}

.testimonial-text {
  margin: 0 0 0.6rem;
  font-size: 0.9rem;
  color: var(--color-text);
}

.testimonial-author {
  margin: 0;
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* Form comentarios */

.feedback-card {
  background: radial-gradient(
    circle at top,
    var(--color-primary-soft),
    #020617
  );
  border-radius: var(--radius-xl);
  padding: 1.6rem;
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: var(--shadow-soft);
}

.feedback-card h3 {
  margin-top: 0;
  margin-bottom: 0.6rem;
}

.feedback-card p {
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.feedback-form {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.feedback-form label {
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
  gap: 0.25rem;
}

.feedback-form input,
.feedback-form textarea,
.feedback-form select {
  border-radius: 0.65rem;
  border: 1px solid rgba(148, 163, 184, 0.45);
  padding: 0.55rem 0.7rem;
  font-size: 0.9rem;
  background: #020617;
  color: var(--color-text);
}

.feedback-form input:focus,
.feedback-form textarea:focus,
.feedback-form select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(255, 59, 47, 0.4);
}

/* Contacto */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.2fr);
  gap: 2rem;
  align-items: flex-start;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 1.5rem;
  color: var(--color-muted);
}

.contact-list li {
  margin-bottom: 0.3rem;
}

/* Formulario contacto */

.contact-form {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  border: 1px solid rgba(148, 163, 184, 0.25);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.contact-form label {
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
  gap: 0.25rem;
}

.contact-form input,
.contact-form textarea {
  border-radius: 0.65rem;
  border: 1px solid rgba(148, 163, 184, 0.45);
  padding: 0.55rem 0.7rem;
  font-size: 0.9rem;
  background: #020617;
  color: var(--color-text);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(255, 59, 47, 0.4);
}

.form-note {
  font-size: 0.75rem;
  color: var(--color-muted);
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(51, 65, 85, 0.7);
  padding: 1rem 0 1.4rem;
  background: #020617;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* Responsivo */

@media (max-width: 960px) {
  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-grid,
  .coverage-grid,
  .contact-grid,
  .testimonials-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .about-highlights {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .header-inner {
    gap: 0.75rem;
  }

  .logo-img {
    height: 44px;
  }

  .main-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: rgba(8, 14, 32, 0.98);
    flex-direction: column;
    padding: 0.75rem 1.25rem 1rem;
    border-bottom: 1px solid rgba(30, 64, 175, 0.5);
    display: none;
  }

  .main-nav.open {
    display: flex;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .hero {
    min-height: 70vh;
  }

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

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

/* Tuning sección Servicios */

.service-card {
  position: relative;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.service-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid transparent;
  pointer-events: none;
  transition: border-color 0.18s ease;
}

.service-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.95);
  border-color: rgba(56, 189, 248, 0.5);
}

.service-card:hover::before {
  border-color: rgba(56, 189, 248, 0.7);
}

.service-card h3 {
  font-size: 1rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.service-card p {
  font-size: 0.88rem;
}

/* Tuning Contacto */

.contact-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.75rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.35);
  font-size: 0.78rem;
  color: var(--color-muted);
}

.contact-badge::before {
  content: "●";
  font-size: 0.65rem;
  color: var(--color-primary);
}

.contact-highlight {
  padding: 0.4rem 0.6rem;
  margin: 0.35rem 0;
  border-radius: 0.75rem;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.45);
  color: var(--color-text);
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.75rem;
}

@media (max-width: 720px) {
  .contact-actions {
    flex-direction: column;
  }

  .contact-actions .btn {
    width: 100%;
    justify-content: center;
  }
}