/* ============================================
   FLEX VENEZUELA — Design System
   Paleta Industrial Premium
   ============================================ */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ---- CSS Custom Properties (Design Tokens) ---- */
:root {
  /* Colores base */
  --color-base: #262624;
  --color-base-dark: #1a1a19;
  --color-base-light: #2f2f2d;
  --color-surface: #1e1e1c;

  /* Colores primarios */
  --color-primary: #ea580c; /* Naranja con mejor contraste sobre blanco */
  --color-primary-hover: #c2410c; /* Naranja con contraste AA */
  --color-primary-soft: rgba(234, 88, 12, 0.15);
  --color-primary-glow: rgba(234, 88, 12, 0.4);

  /* Colores de acento */
  --color-accent: #F23005;
  --color-accent-hover: #D12B04;

  /* Texto */
  --color-text: #FFFFFF;
  --color-text-secondary: #D1D5DB;
  --color-text-muted: #9CA3AF;
  --color-text-dim: #6B7280;

  /* Bordes */
  --color-border: #374151;
  --color-border-subtle: #2a2a28;

  /* Éxito (WhatsApp) */
  --color-whatsapp: #25D366;
  --color-whatsapp-hover: #1da851;

  /* Tipografía */
  --font-primary: 'Inter', system-ui, -apple-system, sans-serif;

  /* Sombras */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-glow-primary: 0 0 30px rgba(242, 92, 5, 0.2);
  --shadow-glow-whatsapp: 0 0 20px rgba(37, 211, 102, 0.3);

  /* Bordes redondeados */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Transiciones */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Reset base ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-base);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ---- Scrollbar Custom ---- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-base-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-hover);
}

/* ---- Selection ---- */
::selection {
  background: var(--color-primary);
  color: var(--color-text);
}

/* ============================================
   ANIMATIONS
   ============================================ */

/* Fade in up (scroll reveal) */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade in (general) */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Slide in from left */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Slide in from right */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Pulse for WhatsApp button */
@keyframes pulse-ring {
  0% {
    transform: scale(0.8);
    opacity: 1;
  }
  100% {
    transform: scale(2.2);
    opacity: 0;
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
}

/* Shimmer for loading */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Glow pulse for CTA */
@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 5px var(--color-primary-glow),
                0 4px 15px rgba(242, 92, 5, 0.2);
  }
  50% {
    box-shadow: 0 0 20px var(--color-primary-glow),
                0 4px 30px rgba(242, 92, 5, 0.35);
  }
}

/* ---- Animation utility classes ---- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--transition-slow),
              transform 0.6s var(--transition-slow);
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.delay-1 { transition-delay: 100ms; }
.animate-on-scroll.delay-2 { transition-delay: 200ms; }
.animate-on-scroll.delay-3 { transition-delay: 300ms; }
.animate-on-scroll.delay-4 { transition-delay: 400ms; }

/* Hero staggered entrance */
.hero-animate {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease forwards;
}
.hero-animate:nth-child(1) { animation-delay: 0.1s; }
.hero-animate:nth-child(2) { animation-delay: 0.25s; }
.hero-animate:nth-child(3) { animation-delay: 0.4s; }
.hero-animate:nth-child(4) { animation-delay: 0.55s; }

/* ============================================
   COMPONENTS
   ============================================ */

/* ---- WhatsApp Floating Button ---- */
.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 50;
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background-color: var(--color-whatsapp);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow-whatsapp);
  transition: transform var(--transition-base),
              background-color var(--transition-base);
  cursor: pointer;
  text-decoration: none;
}

.whatsapp-float::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  background-color: var(--color-whatsapp);
  animation: pulse-ring 2s ease-out infinite;
  z-index: -1;
}

.whatsapp-float:hover {
  background-color: var(--color-whatsapp-hover);
  transform: scale(1.1);
}

.whatsapp-float svg {
  width: 30px;
  height: 30px;
  fill: white;
}

/* Tooltip on hover */
.whatsapp-float .whatsapp-tooltip {
  position: absolute;
  right: 72px;
  background: var(--color-base-dark);
  color: var(--color-text);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  border: 1px solid var(--color-border);
}

.whatsapp-float:hover .whatsapp-tooltip {
  opacity: 1;
}

@media (min-width: 768px) {
  .whatsapp-float {
    bottom: 2rem;
    right: 2rem;
    width: 64px;
    height: 64px;
  }
}

/* ---- CTA Buttons ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  background-color: var(--color-primary);
  color: #FFFFFF;
  font-weight: 800; /* Texto más grueso para mejor legibilidad */
  font-size: 0.9rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-base),
              transform var(--transition-fast),
              box-shadow var(--transition-base);
  box-shadow: 0 4px 15px rgba(242, 92, 5, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(242, 48, 5, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: transparent;
  color: #FFFFFF !important;
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-full);
  border: 2px solid rgba(255, 255, 255, 0.7);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #FFFFFF !important;
}

/* ---- Cards ---- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  transition: transform var(--transition-base),
              box-shadow var(--transition-base),
              border-color var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-primary);
  border-color: rgba(242, 92, 5, 0.3);
}

.card-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius-md);
  transition: transform var(--transition-slow);
}

.card:hover .card-image {
  transform: scale(1.05);
}

/* ---- Glass Panel ---- */
.glass-panel {
  background: rgba(30, 30, 28, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-xl);
}

/* ---- Section Divider ---- */
.section-divider {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
}

/* ---- Trust Badge ---- */
.trust-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle);
  transition: border-color var(--transition-base);
}

.trust-badge:hover {
  border-color: var(--color-primary);
}

.trust-badge-icon {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  background: var(--color-primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.1rem;
}

/* ---- Mobile Menu ---- */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 40;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.mobile-menu-overlay.is-active {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 280px;
  height: 100vh;
  background: var(--color-base-dark);
  border-left: 1px solid var(--color-border);
  z-index: 45;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-menu.is-active {
  transform: translateX(0);
}

/* ---- Honeypot (anti-spam) ---- */
.form-hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

/* ---- Form Inputs ---- */
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-primary);
  font-size: 0.9rem;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
  outline: none;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.form-input::placeholder {
  color: var(--color-text-dim);
}

.form-label {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

/* ---- FAQ Accordion ---- */
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-base);
}

.faq-item:hover {
  border-color: var(--color-primary);
}

.faq-item summary {
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--color-primary);
  font-weight: 700;
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item .faq-answer {
  padding: 0 1.25rem 1rem;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */

/* Container */
.container-flex {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (min-width: 768px) {
  .container-flex {
    padding: 0 3rem;
  }
}

/* Gradient text */
.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Image overflow container */
.img-overflow {
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.img-overflow img {
  transition: transform var(--transition-slow);
}

.img-overflow:hover img {
  transform: scale(1.05);
}

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
}

.stagger-children.is-visible > *:nth-child(1) { animation: fadeInUp 0.5s ease 0.05s forwards; }
.stagger-children.is-visible > *:nth-child(2) { animation: fadeInUp 0.5s ease 0.15s forwards; }
.stagger-children.is-visible > *:nth-child(3) { animation: fadeInUp 0.5s ease 0.25s forwards; }
.stagger-children.is-visible > *:nth-child(4) { animation: fadeInUp 0.5s ease 0.35s forwards; }
.stagger-children.is-visible > *:nth-child(5) { animation: fadeInUp 0.5s ease 0.45s forwards; }
.stagger-children.is-visible > *:nth-child(6) { animation: fadeInUp 0.5s ease 0.55s forwards; }

/* ---- Pain Point highlight ---- */
.pain-highlight {
  position: relative;
  padding-left: 1.25rem;
  border-left: 3px solid var(--color-accent);
}

/* ---- Stat counter ---- */
.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
}

/* ---- Backdrop noise texture ---- */
.noise-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}