/* ============================================
   PROFASE — Web Completa
   Sonido e Iluminación para Eventos
   ============================================ */

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

/* === VARIABLES DE MARCA === */
:root {
  /* Primarios */
  --violeta: #8B5CF6;
  --dorado: #F5A623;
  --cyan: #22D3EE;

  /* Fondos */
  --negro: #0A0A0F;
  --gris-oscuro: #1A1A2E;
  --gris-medio: #2D2D44;

  /* Texto */
  --blanco: #FFFFFF;
  --blanco-suave: #E0E0E0;
  --gris-claro: #9CA3AF;

  /* Gradientes */
  --grad-principal: linear-gradient(135deg, #8B5CF6, #22D3EE);
  --grad-calido: linear-gradient(135deg, #8B5CF6, #F5A623);
  --grad-energia: linear-gradient(135deg, #F5A623, #22D3EE);

  /* Sombras */
  --sombra-violeta: 0 8px 30px rgba(139, 92, 246, 0.3);
  --sombra-card: 0 12px 40px rgba(139, 92, 246, 0.15);

  /* Transiciones */
  --trans: all 0.3s ease;
}

/* === BODY === */
html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--negro);
  color: var(--blanco-suave);
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === TIPOGRAFÍA === */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  color: var(--blanco);
  line-height: 1.1;
}

h1 { font-weight: 800; font-size: 2.25rem; }
h2 { font-weight: 700; font-size: 1.75rem; }
h3 { font-weight: 600; font-size: 1.25rem; }

a {
  color: var(--cyan);
  text-decoration: none;
  transition: var(--trans);
}
a:hover { color: var(--violeta); }

img { max-width: 100%; height: auto; display: block; }

/* === UTILIDADES === */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.tag {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.8rem;
  color: var(--gris-claro);
}

.texto-grad {
  background: var(--grad-principal);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.texto-grad-calido {
  background: var(--grad-calido);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.linea-grad {
  width: 80px;
  height: 4px;
  background: var(--grad-principal);
  border-radius: 2px;
}

.linea-grad-calido {
  width: 80px;
  height: 4px;
  background: var(--grad-calido);
  border-radius: 2px;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.section-header h2 {
  font-size: 1.75rem;
}

/* === BOTONES === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  cursor: pointer;
  transition: var(--trans);
  text-decoration: none;
  line-height: 1;
}

.btn-primario {
  background: var(--grad-calido);
  color: var(--negro);
}
.btn-primario:hover {
  transform: translateY(-2px);
  box-shadow: var(--sombra-violeta);
  color: var(--negro);
}

.btn-secundario {
  background: transparent;
  border: 2px solid var(--violeta);
  color: var(--blanco);
}
.btn-secundario:hover {
  background: var(--violeta);
  color: var(--negro);
}

.btn-whatsapp {
  background: #25D366;
  color: var(--blanco);
}
.btn-whatsapp:hover {
  background: #128C7E;
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.3);
  color: var(--blanco);
}

/* ============================================
   NAV
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 999;
  padding: 16px 0;
  transition: var(--trans);
  background: rgba(10, 10, 15, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav.scrolled {
  background: rgba(10, 10, 15, 0.95);
  padding: 10px 0;
  border-bottom: 1px solid rgba(45, 45, 68, 0.5);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  height: 40px;
  width: auto;
}

.nav-links {
  display: none;
  list-style: none;
  gap: 28px;
  align-items: center;
}

.nav-links a {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--blanco-suave);
  transition: var(--trans);
}
.nav-links a:hover {
  color: var(--violeta);
}

.nav-cta {
  display: none;
}

/* Hamburguesa */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--blanco);
  border-radius: 2px;
  transition: var(--trans);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
.nav-mobile {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--gris-oscuro);
  padding: 80px 32px 32px;
  transition: right 0.3s ease;
  z-index: 1000;
  border-left: 1px solid var(--gris-medio);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.nav-mobile.open {
  right: 0;
}

.nav-mobile a {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--blanco-suave);
  display: block;
  padding: 8px 0;
  border-bottom: 1px solid var(--gris-medio);
}

.nav-mobile a:hover {
  color: var(--violeta);
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 15, 0.7);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: var(--trans);
}

.nav-overlay.visible {
  opacity: 1;
  visibility: visible;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 20px 60px;
  position: relative;
  overflow: hidden;
  background: var(--negro);
}

/* Partículas CSS */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(2px 2px at 15% 25%, rgba(139, 92, 246, 0.3), transparent),
    radial-gradient(2px 2px at 45% 75%, rgba(34, 211, 238, 0.25), transparent),
    radial-gradient(2px 2px at 85% 15%, rgba(245, 166, 35, 0.2), transparent),
    radial-gradient(1px 1px at 55% 45%, rgba(255, 255, 255, 0.1), transparent),
    radial-gradient(1px 1px at 75% 85%, rgba(139, 92, 246, 0.2), transparent),
    radial-gradient(1px 1px at 25% 60%, rgba(34, 211, 238, 0.15), transparent),
    radial-gradient(2px 2px at 90% 50%, rgba(245, 166, 35, 0.15), transparent),
    radial-gradient(1px 1px at 10% 90%, rgba(139, 92, 246, 0.1), transparent);
  z-index: 0;
}

/* Haces de luz */
.hero-haz-1 {
  position: absolute;
  width: 300px;
  height: 700px;
  background: linear-gradient(180deg, rgba(139, 92, 246, 0.1), transparent);
  transform: rotate(-20deg);
  top: -100px;
  right: -60px;
  z-index: 0;
  animation: hazFloat 8s ease-in-out infinite;
}

.hero-haz-2 {
  position: absolute;
  width: 200px;
  height: 500px;
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.07), transparent);
  transform: rotate(15deg);
  top: -50px;
  left: -30px;
  z-index: 0;
  animation: hazFloat 10s ease-in-out infinite reverse;
}

.hero-haz-3 {
  position: absolute;
  width: 250px;
  height: 600px;
  background: linear-gradient(180deg, rgba(245, 166, 35, 0.06), transparent);
  transform: rotate(-35deg);
  bottom: -100px;
  left: 20%;
  z-index: 0;
  animation: hazFloat 12s ease-in-out infinite;
}

@keyframes hazFloat {
  0%, 100% { opacity: 0.6; transform: rotate(-20deg) translateY(0); }
  50% { opacity: 1; transform: rotate(-18deg) translateY(-20px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  max-width: 800px;
}

.hero-content .tag {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
}

.hero h1 {
  font-size: 2.5rem;
  text-transform: uppercase;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--blanco-suave);
  max-width: 560px;
  line-height: 1.6;
}

.hero-botones {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
  width: 100%;
  max-width: 340px;
}

/* ============================================
   DIFERENCIAL
   ============================================ */
.diferencial {
  padding: 80px 20px;
  text-align: center;
  position: relative;
  background: var(--negro);
}

.diferencial-tachado {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--gris-medio);
  text-decoration: line-through;
  text-decoration-color: var(--dorado);
  text-decoration-thickness: 3px;
  margin-bottom: 12px;
}

.diferencial h2 {
  font-size: 2rem;
  margin-bottom: 8px;
}

.diferencial-lista {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 40px auto;
  max-width: 500px;
  text-align: left;
}

.diferencial-item {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 1rem;
  color: var(--blanco-suave);
}

.diferencial-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.diferencial-icon.ic-violeta { background: rgba(139, 92, 246, 0.15); }
.diferencial-icon.ic-cyan { background: rgba(34, 211, 238, 0.15); }
.diferencial-icon.ic-dorado { background: rgba(245, 166, 35, 0.15); }

.diferencial-cta {
  font-size: 1rem;
  color: var(--gris-claro);
  margin-top: 32px;
  font-style: italic;
}

/* ============================================
   SERVICIOS
   ============================================ */
.servicios {
  padding: 80px 20px;
  background: var(--gris-oscuro);
}

.servicios-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.servicio-card {
  background: rgba(10, 10, 15, 0.6);
  border: 1px solid var(--gris-medio);
  border-radius: 16px;
  padding: 32px 24px;
  transition: var(--trans);
  position: relative;
  overflow: hidden;
}

.servicio-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.servicio-card.borde-violeta::before { background: var(--violeta); }
.servicio-card.borde-dorado::before { background: var(--dorado); }
.servicio-card.borde-cyan::before { background: var(--cyan); }

.servicio-card:hover {
  border-color: var(--violeta);
  transform: translateY(-4px);
  box-shadow: var(--sombra-card);
}

.servicio-card.destacado {
  border-color: rgba(139, 92, 246, 0.3);
  background: rgba(139, 92, 246, 0.08);
}

.servicio-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 50px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: var(--grad-calido);
  color: var(--negro);
  margin-bottom: 16px;
}

.servicio-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.servicio-card h3 {
  margin-bottom: 8px;
}

.servicio-card p {
  font-size: 0.9rem;
  color: var(--gris-claro);
  line-height: 1.5;
}

/* ============================================
   CÓMO FUNCIONA
   ============================================ */
.como-funciona {
  padding: 80px 20px;
  background: linear-gradient(180deg, var(--negro) 0%, var(--gris-oscuro) 100%);
}

.pasos-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  position: relative;
}

.paso {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.paso-numero {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 2.5rem;
  line-height: 1;
  flex-shrink: 0;
  width: 60px;
}

.paso-numero.color-1 { color: var(--violeta); }
.paso-numero.color-2 { color: var(--cyan); }
.paso-numero.color-3 { color: var(--dorado); }

.paso-info h3 {
  margin-bottom: 4px;
  font-size: 1.1rem;
}

.paso-info p {
  font-size: 0.9rem;
  color: var(--gris-claro);
}

/* ============================================
   STATS
   ============================================ */
.stats {
  padding: 48px 20px;
  background: var(--gris-oscuro);
  border-top: 1px solid var(--gris-medio);
  border-bottom: 1px solid var(--gris-medio);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  text-align: center;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-numero {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 2rem;
  color: var(--violeta);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--gris-claro);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============================================
   PRESUPUESTO
   ============================================ */
.presupuesto {
  padding: 80px 20px;
  background: linear-gradient(180deg, var(--negro) 0%, var(--gris-oscuro) 50%, var(--negro) 100%);
  position: relative;
}

.presupuesto-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

.presupuesto-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.presupuesto-info h2 {
  font-size: 1.75rem;
}

.presupuesto-info p {
  color: var(--blanco-suave);
  font-size: 1rem;
  line-height: 1.6;
}

.presupuesto-contacto {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}

.presupuesto-contacto-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--blanco-suave);
}

.presupuesto-contacto-item span:first-child {
  font-size: 1.2rem;
}

/* Formulario */
.form-presupuesto {
  background: rgba(26, 26, 46, 0.6);
  border: 1px solid var(--gris-medio);
  border-radius: 20px;
  padding: 32px 24px;
}

.form-grupo {
  margin-bottom: 16px;
}

.form-grupo label {
  display: block;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--blanco-suave);
  margin-bottom: 6px;
}

.form-grupo input,
.form-grupo select,
.form-grupo textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--negro);
  border: 1px solid var(--gris-medio);
  border-radius: 12px;
  color: var(--blanco);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  transition: var(--trans);
  outline: none;
}

.form-grupo input::placeholder,
.form-grupo textarea::placeholder {
  color: var(--gris-claro);
}

.form-grupo input:focus,
.form-grupo select:focus,
.form-grupo textarea:focus {
  border-color: var(--violeta);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.form-grupo select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%239CA3AF'%3E%3Cpath d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-grupo select option {
  background: var(--negro);
  color: var(--blanco);
}

.form-grupo textarea {
  resize: vertical;
  min-height: 80px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.form-presupuesto .btn {
  width: 100%;
  padding: 16px;
  font-size: 0.9rem;
  margin-top: 8px;
}

.form-nota {
  text-align: center;
  font-size: 0.75rem;
  color: var(--gris-claro);
  margin-top: 12px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 48px 20px 24px;
  background: var(--gris-oscuro);
  border-top: 1px solid var(--gris-medio);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-col h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blanco);
  margin-bottom: 16px;
}

.footer-logo {
  height: 36px;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 0.85rem;
  color: var(--gris-claro);
  line-height: 1.5;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--gris-claro);
  transition: var(--trans);
}
.footer-links a:hover {
  color: var(--violeta);
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--gris-medio);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--blanco-suave);
  transition: var(--trans);
}
.footer-social a:hover {
  background: var(--violeta);
  color: var(--blanco);
}

.footer-bottom {
  border-top: 1px solid var(--gris-medio);
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.75rem;
  color: var(--gris-claro);
}

.footer-bottom a {
  color: var(--gris-claro);
  font-size: 0.7rem;
}

/* ============================================
   BOTÓN FLOTANTE WHATSAPP
   ============================================ */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 998;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: var(--trans);
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
  fill: var(--blanco);
}

/* ============================================
   ANIMACIONES DE ENTRADA
   ============================================ */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--negro); }
::-webkit-scrollbar-thumb { background: var(--gris-medio); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--violeta); }

::selection {
  background: var(--violeta);
  color: var(--blanco);
}

/* ============================================
   RESPONSIVE — 768px+
   ============================================ */
@media (min-width: 768px) {
  .container { padding: 0 40px; }

  h1 { font-size: 3.2rem; }
  h2 { font-size: 2.25rem; }
  h3 { font-size: 1.4rem; }

  .section-header h2 { font-size: 2.25rem; }

  /* Nav */
  .nav-toggle { display: none; }
  .nav-mobile { display: none; }
  .nav-overlay { display: none; }

  .nav-links {
    display: flex;
  }

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

  /* Hero */
  .hero { padding: 120px 40px 80px; }
  .hero h1 { font-size: 3.5rem; }
  .hero-sub { font-size: 1.2rem; }

  .hero-botones {
    flex-direction: row;
    max-width: none;
    justify-content: center;
  }

  /* Diferencial */
  .diferencial { padding: 100px 40px; }
  .diferencial-tachado { font-size: 1.6rem; }
  .diferencial h2 { font-size: 2.8rem; }
  .diferencial-lista { flex-direction: row; max-width: 800px; gap: 32px; text-align: center; }
  .diferencial-item { flex-direction: column; align-items: center; }

  /* Servicios */
  .servicios { padding: 100px 40px; }
  .servicios-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }

  /* Cómo funciona */
  .como-funciona { padding: 100px 40px; }
  .pasos-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }

  /* Stats */
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
  .stat-numero { font-size: 2.5rem; }

  /* Presupuesto */
  .presupuesto { padding: 100px 40px; }
  .presupuesto-grid { grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
  .form-presupuesto { padding: 40px; }
  .form-row { grid-template-columns: 1fr 1fr; }

  /* Footer */
  .footer { padding: 60px 40px 24px; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}

/* ============================================
   RESPONSIVE — 1024px+
   ============================================ */
@media (min-width: 1024px) {
  h1 { font-size: 4rem; }
  h2 { font-size: 2.75rem; }

  .hero h1 { font-size: 4.2rem; }

  .diferencial h2 { font-size: 3.2rem; }

  .pasos-grid { grid-template-columns: repeat(4, 1fr); }

  .servicio-card { padding: 40px 32px; }
}