/* ==========================================================================
   LEIBTECHS S.A.C.S. — Minimalist Refero B2B Design System
   High whitespace, scannable cards, zero clutter.
   Fonts: Space Grotesk (Headings) + Plus Jakarta Sans (Body) + JetBrains Mono (Meta)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  /* Opción 1: Grafito Neutro / Carbón Mate (Estilo Linear / Apple) */
  --bg-base: #0C0D0E;
  --bg-surface: #121316;
  --bg-card: rgba(20, 21, 24, 0.72);
  --bg-card-hover: rgba(26, 28, 32, 0.9);
  --bg-glass: rgba(12, 13, 14, 0.9);
  --bg-input: #141518;

  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-medium: rgba(255, 255, 255, 0.12);
  --border-active: rgba(56, 189, 248, 0.35);
  --border-emerald: rgba(37, 211, 102, 0.35);

  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  --accent-cyan: #06B6D4;
  --accent-sky: #38BDF8;
  --accent-blue: #0284C7;
  --accent-emerald: #25D366;

  --font-display: 'Space Grotesk', -apple-system, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;

  --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-glow: 0 0 35px -5px rgba(255, 255, 255, 0.05);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-base);
  color: var(--text-primary);
}

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

/* Background Grids */
.bg-grid-overlay {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
  z-index: 0;
}

.bg-glow-radial {
  position: fixed;
  top: -15%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.02) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.15;
}

.font-mono {
  font-family: var(--font-mono);
}

p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

/* Container */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* Header */
.header-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

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

.brand-logo-img {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  border: 1px solid var(--border-medium);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-name span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--accent-sky);
  margin-left: 0.25rem;
  padding: 0.15rem 0.4rem;
  background: rgba(56, 189, 248, 0.1);
  border-radius: 4px;
  border: 1px solid rgba(56, 189, 248, 0.2);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  list-style: none;
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(180deg, #38BDF8 0%, #0284C7 100%);
  color: #040810;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.1);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

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

.btn-whatsapp {
  background: linear-gradient(180deg, #25D366 0%, #16A34A 100%);
  color: #03210F;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  transform: translateY(-1px);
  filter: brightness(1.1);
}

.btn-sm {
  padding: 0.4rem 0.9rem;
  font-size: 0.82rem;
}

.btn-lg {
  padding: 0.85rem 1.75rem;
  font-size: 0.95rem;
}

/* Mobile Toggle */
.mobile-toggle-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.45rem;
  cursor: pointer;
}

/* Hero Section */
.hero-section {
  padding: 5.5rem 0 3.5rem;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-pill);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--accent-sky);
  margin-bottom: 1.5rem;
}

.live-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-emerald);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px var(--accent-emerald);
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 700;
  margin: 0 auto 1.25rem;
  max-width: 860px;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #FFFFFF 20%, #38BDF8 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 2.25rem;
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

/* Logos & Trust Strip (Clean, scannable) */
.trust-strip {
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1.25rem 0;
  background: rgba(11, 15, 23, 0.4);
}

.trust-strip-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.trust-strip-label {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.trust-tags-group {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  flex-wrap: wrap;
}

.trust-badge {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* Sections */
.section {
  padding: 5.5rem 0;
}

.section-darker {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-sky);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.6rem;
}

.section-title {
  font-size: clamp(1.85rem, 3.2vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* Bento Cards (Short, clean, no long lists) */
.bento-3-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  color: var(--accent-sky);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.card-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.card-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.card-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.card-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.2rem 0.55rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  color: var(--text-muted);
}

.card-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-sky);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.card-link:hover {
  color: #fff;
  gap: 0.55rem;
}

/* Quick Interactive Cotizador (3 clicks) */
.quick-quote-box {
  background: linear-gradient(180deg, rgba(14, 20, 31, 0.85) 0%, rgba(9, 13, 20, 0.95) 100%);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  max-width: 820px;
  margin: 0 auto;
}

.qq-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.qq-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 0.45rem 1rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.qq-btn:hover, .qq-btn.active {
  background: rgba(56, 189, 248, 0.12);
  border-color: var(--accent-sky);
  color: #fff;
}

.qq-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.qq-input:focus {
  outline: none;
  border-color: var(--accent-sky);
}

/* Why LeibTechs Minimal Trio */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.why-item {
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.why-item h3 {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}

.why-item p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* CTA Banner (The one the user liked in screenshot) */
.cta-banner {
  background: radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.04) 0%, rgba(18, 19, 22, 0.98) 75%);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 3.5rem 2.5rem;
  text-align: center;
  position: relative;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
}

.cta-banner-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 0.75rem;
}

.cta-banner h2 {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  margin-bottom: 0.85rem;
}

.cta-banner p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.55;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Footer (Discreet, 1 mention of RUC & Razón Social) */
.footer {
  background: #04060A;
  border-top: 1px solid var(--border-subtle);
  padding: 3.5rem 0 2rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-link {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.footer-link:hover {
  color: var(--accent-sky);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.5rem;
  font-size: 0.78rem;
}

.footer-legal-tag {
  font-family: var(--font-mono);
  color: var(--text-muted);
}

/* Floating WhatsApp */
.floating-whatsapp-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
}

.whatsapp-bubble-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25D366 0%, #16A34A 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35);
  transition: var(--transition);
}

.whatsapp-bubble-btn:hover {
  transform: scale(1.08);
}

/* Mobile */
@media (max-width: 860px) {
  .nav-menu {
    display: none;
  }
  .mobile-toggle-btn {
    display: block;
  }
  .bento-3-grid, .why-grid {
    grid-template-columns: 1fr;
  }
  .trust-strip-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-section {
    padding: 4rem 0 2.5rem;
  }
  .footer-inner, .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}