/* =====================================================
   KAPTUR — Estilos personalizados
   Stack: Bootstrap 5.3 + custom overrides
   ===================================================== */

/* ── Variables de marca ───────────────────────────── */
:root {
  --kaptur-dark:    #0f172a;
  --kaptur-darker:  #070e1a;
  --kaptur-mid:     #1e293b;
  --kaptur-accent:  #f59e0b;   /* amarillo/naranja de advertencia */
  --kaptur-accent2: #fbbf24;
  --kaptur-text-muted: #94a3b8;
}

/* ── Reset y base ─────────────────────────────────── */
html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--kaptur-dark);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ── Navbar ───────────────────────────────────────── */
#mainNav {
  background-color: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(245, 158, 11, 0.15);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

#mainNav.navbar-scrolled {
  background-color: var(--kaptur-darker) !important;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

#mainNav .nav-link {
  color: #cbd5e1;
  transition: color 0.2s;
}

#mainNav .nav-link:hover,
#mainNav .nav-link.active {
  color: var(--kaptur-accent);
}

.logo-img {
  filter: drop-shadow(0 0 6px rgba(245, 158, 11, 0.5));
}

/* ── Hero ─────────────────────────────────────────── */
.hero-section {
  min-height: 100vh;
  padding-top: 80px;    /* compensa navbar fixed */
  background: linear-gradient(135deg, var(--kaptur-darker) 0%, var(--kaptur-mid) 100%);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  pointer-events: none;
}

/* Mockups de teléfono en el hero */
.hero-phone-stack {
  position: relative;
  width: 260px;
  height: 480px;
  margin: 0 auto;
}

.phone-mockup {
  position: absolute;
  border-radius: 2rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
  width: 200px;
  border: 3px solid rgba(255, 255, 255, 0.08);
}

.phone-back {
  top: 40px;
  left: 0;
  transform: rotate(-6deg);
  opacity: 0.75;
  z-index: 1;
}

.phone-front {
  top: 10px;
  right: 0;
  transform: rotate(4deg);
  z-index: 2;
}

/* ── Secciones alternadas ─────────────────────────── */
.section-light {
  background-color: #f8fafc;
  color: #1e293b;
}

.section-dark {
  background-color: var(--kaptur-mid);
  color: #f1f5f9;
}

/* Títulos de sección con línea decorativa */
.section-title {
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 4px;
  background-color: var(--kaptur-accent);
  border-radius: 2px;
  margin: 0.5rem auto 0;
}

/* ── Iconos circulares (sección ¿Qué es?) ─────────── */
.icon-circle {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── Tarjetas de características ──────────────────── */
.feature-card {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 1rem;
  padding: 1.75rem;
  transition: transform 0.25s, border-color 0.25s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 158, 11, 0.4);
}

.feature-card--sm {
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
}

.feature-icon {
  font-size: 2rem;
  color: var(--kaptur-accent);
}

/* ── Capturas de pantalla ─────────────────────────── */
.screenshot-img {
  width: 200px;
  border-radius: 1.5rem;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
  border: 2px solid rgba(0, 0, 0, 0.08);
  transition: transform 0.3s, box-shadow 0.3s;
}

.screenshot-img:hover {
  transform: scale(1.04);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

/* Carrusel en móvil: controles visibles sobre fondo oscuro */
#screenshotsCarousel .carousel-control-prev-icon,
#screenshotsCarousel .carousel-control-next-icon {
  filter: invert(1);
}

/* ── Sección de equipo ────────────────────────────── */
.team-card {
  padding: 1.5rem 1rem;
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  background: #fff;
  transition: box-shadow 0.25s;
}

.team-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.team-avatar {
  width: 64px;
  height: 64px;
  background-color: #fef3c7;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── Footer ───────────────────────────────────────── */
.footer-dark {
  background-color: var(--kaptur-darker);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ── Animaciones de entrada ───────────────────────── */
.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsivo ───────────────────────────────────── */
@media (max-width: 576px) {
  .hero-phone-stack {
    width: 220px;
    height: 380px;
  }
  .phone-mockup {
    width: 160px;
  }
}