/* ============================================================
   NexoraSaaS — home.css
   Paleta: Navy oscuro + Cian vibrante | Tipografía: Inter
   Encapsulado: solo aplica a las clases definidas aquí
   ============================================================ */

/* ---------- RESET & ROOT ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Colores base */
  --navy-950:  #0a0f1e;
  --navy-900:  #0f172a;
  --navy-800:  #1e293b;
  --navy-700:  #273348;
  --navy-600:  #334155;

  /* Acento cian */
  --cyan-500:  #06b6d4;
  --cyan-400:  #22d3ee;
  --cyan-300:  #67e8f9;
  --cyan-glow: rgba(6,182,212,0.2);

  /* Texto */
  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted:     #64748b;

  /* Superficies */
  --surface:       rgba(30,41,59,0.6);
  --surface-light: rgba(255,255,255,0.04);
  --border:        rgba(255,255,255,0.08);
  --border-cyan:   rgba(6,182,212,0.25);

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

  /* Forma */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-glow: 0 0 40px rgba(6,182,212,0.18);
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --container: 1160px;
  --nav-h:     68px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--navy-900);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; }
a   { text-decoration: none; color: inherit; }
ul  { list-style: none; }

/* Accesibilidad: ocultar visualmente pero mantener en DOM */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ---------- SCROLLBAR ---------- */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--navy-900); }
::-webkit-scrollbar-thumb { background: var(--navy-600); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--cyan-500); }

/* ============================================================
   ANIMACIONES
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   BOTONES COMPARTIDOS
   ============================================================ */
.btn-ghost {
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}
.btn-ghost:hover { color: var(--text-primary); }

.btn-primary {
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy-900);
  background: var(--cyan-500);
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition), box-shadow var(--transition);
}
.btn-primary:hover {
  background: var(--cyan-400);
  box-shadow: var(--shadow-glow);
}

/* ============================================================
   COMPONENTES DE SECCIÓN
   ============================================================ */
.section-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan-400);
  background: rgba(6,182,212,0.08);
  border: 1px solid rgba(6,182,212,0.2);
  padding: 0.3rem 0.85rem;
  border-radius: 100px;
  margin-bottom: 1.25rem;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.18;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.75;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), backdrop-filter var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(10,15,30,0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}

.nav-container {
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

/* Logo solo texto */
.nav-logo { flex-shrink: 0; }

.logo-text {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}
.logo-accent { color: var(--cyan-400); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex: 1;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover { color: var(--text-primary); background: var(--surface-light); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-left: auto;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 998;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 5rem) 2rem 7rem;
  overflow: hidden;
  text-align: center;
}

/* Fondo animado */
.hero-bg { position: absolute; inset: 0; pointer-events: none; z-index: 0; }

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  animation: orbFloat 12s ease-in-out infinite alternate;
}
.orb-1 {
  width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(6,182,212,0.22) 0%, transparent 70%);
  top: -180px; left: -120px;
  animation-duration: 14s;
}
.orb-2 {
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(15,23,42,0.8) 0%, rgba(6,182,212,0.08) 70%);
  bottom: -60px; right: -80px;
  animation-duration: 10s;
  animation-delay: 3s;
}

@keyframes orbFloat {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(28px, 18px) scale(1.04); }
}

/* Grilla decorativa */
.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 0%, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 0%, black 40%, transparent 100%);
}

/* Contenido hero */
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  margin-bottom: 2rem;
  letter-spacing: 0.02em;
}
.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan-500);
  box-shadow: 0 0 8px var(--cyan-500);
  animation: pulse 2.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(2.6rem, 7vw, 5rem);
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1.08;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
}
.hero-title-accent {
  color: transparent;
  background: linear-gradient(135deg, var(--cyan-400) 0%, var(--cyan-300) 60%, #a5f3fc 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 2.5rem;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}
.br-desktop { display: block; }

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

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-900);
  background: var(--cyan-500);
  padding: 0.9rem 2rem;
  border-radius: var(--radius-md);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  box-shadow: 0 4px 24px rgba(6,182,212,0.35);
}
.btn-hero-primary:hover {
  background: var(--cyan-400);
  box-shadow: 0 8px 36px rgba(6,182,212,0.5);
  transform: translateY(-2px);
}

.btn-hero-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface-light);
  border: 1px solid var(--border);
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-md);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.btn-hero-ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-cyan);
  background: rgba(6,182,212,0.05);
}

/* ============================================================
   FEATURES
   ============================================================ */
.features {
  padding: 7rem 0;
  border-top: 1px solid var(--border);
}

.features-grid {
  display: grid;
  /* Layout asimétrico 3 columnas:
     Fila 1: wide (2col) + card (1col)
     Fila 2: card (1col) + wide (2col)        */
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 2.25rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  border-color: var(--border-cyan);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3), 0 0 0 1px var(--border-cyan);
}
.feature-wide { grid-column: span 2; }

.feature-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(6,182,212,0.1);
  border: 1px solid rgba(6,182,212,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-400);
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how-it-works {
  padding: 7rem 0;
  border-top: 1px solid var(--border);
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 0;
}

.step-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  transition: border-color var(--transition);
}
.step-card:hover { border-color: var(--border-cyan); }

.step-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: transparent;
  background: linear-gradient(135deg, var(--cyan-500), rgba(6,182,212,0.2));
  -webkit-background-clip: text;
  background-clip: text;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 1rem;
}

.step-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

.step-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Línea conectora entre steps */
.step-connector {
  width: 3rem;
  height: 1px;
  background: linear-gradient(90deg, var(--border-cyan), var(--border));
  margin: 0 0.25rem;
  flex-shrink: 0;
}

/* ============================================================
   CTA / CONTACT
   ============================================================ */
.cta-final {
  padding: 8rem 0;
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-bg { position: absolute; inset: 0; pointer-events: none; }
.cta-orb {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6,182,212,0.1) 0%, transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.cta-content > p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.cta-form {
  display: flex;
  gap: 0.75rem;
  max-width: 480px;
  margin: 0 auto 1rem;
  flex-wrap: wrap;
}

.cta-form input {
  flex: 1;
  min-width: 200px;
  font-family: var(--font);
  font-size: 0.9rem;
  color: var(--text-primary);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.1rem;
  outline: none;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}
.cta-form input::placeholder { color: var(--text-muted); }
.cta-form input:focus {
  border-color: var(--cyan-500);
  background: rgba(6,182,212,0.04);
  box-shadow: 0 0 0 3px rgba(6,182,212,0.12);
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--navy-900);
  background: var(--cyan-500);
  border: none;
  border-radius: var(--radius-md);
  padding: 0.9rem 1.85rem;
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  box-shadow: 0 4px 20px rgba(6,182,212,0.35);
  white-space: nowrap;
}
.btn-cta:hover {
  background: var(--cyan-400);
  box-shadow: 0 8px 32px rgba(6,182,212,0.5);
  transform: translateY(-1px);
}
.btn-cta.loading span { opacity: 0.5; }

.cta-fine {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--navy-950);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}

.footer-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 1rem;
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.social-links { display: flex; gap: 0.6rem; }
.social-links a {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: border-color var(--transition), color var(--transition);
}
.social-links a:hover { border-color: var(--border-cyan); color: var(--cyan-400); }

.footer-links-group h4 {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 1.25rem;
}
.footer-links-group ul { display: flex; flex-direction: column; gap: 0.55rem; }
.footer-links-group a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-links-group a:hover { color: var(--text-secondary); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); }

.footer-legal { display: flex; gap: 1.25rem; }
.footer-legal a {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-legal a:hover { color: var(--text-secondary); }

/* ============================================================
   RESPONSIVE — Tablet (max 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-wide { grid-column: span 2; }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  .step-connector { display: none; }

  .footer-top { grid-template-columns: 2fr 1fr 1fr; }
}

/* ============================================================
   RESPONSIVE — Mobile (max 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root { --nav-h: 60px; }

  /* Navbar mobile */
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--navy-950);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 1.25rem 1.5rem;
    gap: 0.2rem;
    transform: translateY(-110%);
    transition: transform var(--transition);
    z-index: 999;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-link { padding: 0.75rem 1rem; }
  .nav-actions { display: none; }
  .nav-toggle { display: flex; }
  .mobile-overlay.show { display: block; }

  /* Hero */
  .hero { padding-top: calc(var(--nav-h) + 3rem); padding-bottom: 4.5rem; }
  .hero-title { font-size: clamp(2.2rem, 10vw, 3.2rem); }
  .hero-subtitle { font-size: 0.95rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn-hero-primary, .btn-hero-ghost { justify-content: center; }
  .br-desktop { display: none; }

  /* Features */
  .features, .how-it-works, .cta-final { padding: 5rem 0; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-wide { grid-column: span 1; }

  /* CTA form */
  .cta-form { flex-direction: column; }
  .cta-form input { min-width: unset; }
  .btn-cta { width: 100%; justify-content: center; }

  /* Footer */
  .footer-top { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-brand { grid-column: span 2; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ============================================================
   RESPONSIVE — Small (max 480px)
   ============================================================ */
@media (max-width: 480px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }

  .section-header { margin-bottom: 2.5rem; }
  .section-container { padding: 0 1.25rem; }
}