/* ==========================================================================
   VoiChatce TTS • Design System & Master Stylesheet
   Estilo Oscuro Premium • Glassmorphism • Micro-animaciones y Tipografía
   ========================================================================== */

:root {
  --bg-main: #0B0E14;
  --bg-card: rgba(18, 22, 33, 0.75);
  --bg-card-hover: rgba(28, 35, 52, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(88, 101, 242, 0.4);
  
  --primary: #5865F2;
  --primary-glow: rgba(88, 101, 242, 0.35);
  --accent: #2ECC71;
  --accent-glow: rgba(46, 204, 113, 0.35);
  --purple: #8A2BE2;
  --purple-glow: rgba(138, 43, 226, 0.35);
  
  --text-main: #FFFFFF;
  --text-muted: #9BA3AF;
  --text-dim: #6B7280;

  --font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Luces de Fondo Ambientales */
.ambient-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 0;
}
.ambient-1 {
  top: -100px;
  left: 20%;
  background: var(--primary-glow);
}
.ambient-2 {
  top: 40%;
  right: 10%;
  background: var(--purple-glow);
}
.ambient-3 {
  bottom: 10%;
  left: 10%;
  background: var(--accent-glow);
}

/* Contenedor Principal */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Barra de Navegación */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 76px;
  display: flex;
  align-items: center;
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.5px;
  margin-right: 20px;
}

.logo-icon {
  font-size: 1.8rem;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.92rem;
  white-space: nowrap;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--text-main);
}

/* Ocultar botón móvil en versión de escritorio */
.mobile-invite-btn {
  display: none !important;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, #5865F2, #4752C4);
  color: #FFFFFF;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(88, 101, 242, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.1rem;
  border-radius: var(--radius-lg);
}

/* Hero Section */
.hero {
  padding: 160px 0 100px;
  text-align: center;
}

.badge-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(46, 204, 113, 0.1);
  border: 1px solid rgba(46, 204, 113, 0.25);
  border-radius: 50px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(46, 204, 113, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(46, 204, 113, 0); }
}

.hero-title {
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, #7289DA, #FFFFFF 40%, #5865F2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 36px;
  font-weight: 400;
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

/* Sound Wave Player Mockup */
.sound-demo-box {
  max-width: 700px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.play-circle-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  flex-shrink: 0;
}

.play-circle-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 0 20px var(--primary-glow);
}

.sound-info {
  flex-grow: 1;
  text-align: left;
}

.sound-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

.sound-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.wave-bars {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 32px;
}

.bar {
  width: 4px;
  height: 8px;
  background: rgba(88, 101, 242, 0.4);
  border-radius: 4px;
  transition: var(--transition);
}

.playing .bar {
  background: var(--primary);
  animation: wave 1.2s ease-in-out infinite alternate;
}

.playing .bar:nth-child(2) { animation-delay: 0.1s; }
.playing .bar:nth-child(3) { animation-delay: 0.2s; }
.playing .bar:nth-child(4) { animation-delay: 0.3s; }
.playing .bar:nth-child(5) { animation-delay: 0.4s; }
.playing .bar:nth-child(6) { animation-delay: 0.5s; }

@keyframes wave {
  0% { height: 6px; }
  100% { height: 28px; }
}

/* Sección de Características */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-badge {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.8px;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.card-icon {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  background: rgba(88, 101, 242, 0.1);
  border: 1px solid rgba(88, 101, 242, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 24px;
}

.card-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.card-text {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Selector de Voces Interactivo */
.voice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.voice-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: var(--transition);
}

.voice-card:hover {
  border-color: var(--primary);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.voice-meta {
  display: flex;
  align-items: center;
  gap: 14px;
}

.voice-flag {
  font-size: 1.8rem;
}

.voice-name {
  font-weight: 700;
  font-size: 1rem;
}

.voice-country {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* Grid de Comandos Moderno (2 Columnas en Desktop) */
.commands-wrapper {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  background: transparent;
  border: none;
}

.command-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: 24px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  backdrop-filter: blur(16px);
  transition: var(--transition);
}

.command-row:hover {
  transform: translateY(-3px);
  border-color: var(--border-glow);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  background: var(--bg-card-hover);
}

.cmd-badge {
  background: rgba(88, 101, 242, 0.15);
  color: #7289DA;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid rgba(88, 101, 242, 0.3);
}

.cmd-desc {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.5;
  text-align: left;
  max-width: 100%;
}

/* Páginas Legales (Términos y Privacidad) */
.legal-content {
  padding: 140px 0 80px;
  max-width: 850px;
  margin: 0 auto;
}

.legal-header {
  margin-bottom: 40px;
  text-align: center;
}

.legal-title {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.legal-date {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.legal-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(16px);
}

.legal-box h2 {
  font-size: 1.4rem;
  margin: 28px 0 12px;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.legal-box h2:first-child {
  margin-top: 0;
}

.legal-box p, .legal-box ul {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 16px;
}

.legal-box ul {
  padding-left: 24px;
}

.legal-box li {
  margin-bottom: 8px;
}

/* Formulario de Soporte y Tickets */
.ticket-card {
  max-width: 800px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
}

.form-group.full-width {
  grid-column: span 2;
  margin-bottom: 20px;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(11, 14, 20, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
  background: rgba(18, 22, 33, 0.95);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.ticket-alert {
  display: none;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  font-size: 0.95rem;
  font-weight: 500;
  text-align: left;
}

.ticket-alert.success {
  display: block;
  background: rgba(46, 204, 113, 0.15);
  border: 1px solid var(--accent);
  color: #2ECC71;
}

.ticket-alert.error {
  display: block;
  background: rgba(231, 76, 60, 0.15);
  border: 1px solid var(--errorColor);
  color: #E74C3C;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 50px 0 30px;
  margin-top: 80px;
  background: rgba(11, 14, 20, 0.95);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 30px;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-link {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--text-main);
}

.footer-copy {
  color: var(--text-dim);
  font-size: 0.85rem;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
}

/* ==========================================================================
   SISTEMA RESPONSIVE AVANZADO PARA MÓVILES Y TABLETS
   ========================================================================== */

/* Botón Hamburguesa Móvil */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 10px;
  z-index: 1100;
  flex-direction: column;
  gap: 5px;
}

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

.mobile-nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Tablets y Pantallas Medianas (<= 992px) */
@media (max-width: 992px) {
  .nav-links {
    gap: 16px;
  }
  .nav-link {
    font-size: 0.9rem;
  }
  .hero-title {
    font-size: clamp(2.4rem, 6vw, 3.4rem);
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .voice-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Teléfonos Móviles (<= 768px) */
@media (max-width: 768px) {
  /* Contenedores y Espaciados */
  .container {
    padding: 0 18px;
  }
  .section {
    padding: 60px 0;
  }
  .section-title {
    font-size: clamp(1.8rem, 6vw, 2.4rem);
  }
  .section-desc {
    font-size: 0.95rem;
    margin-bottom: 36px;
  }

  /* Navbar Móvil */
  .navbar {
    height: 68px;
  }
  .mobile-nav-toggle {
    display: flex;
  }
  .navbar .btn-primary {
    display: none; /* Se muestra dentro del menú móvil */
  }

  .nav-links {
    display: flex;
    position: fixed;
    top: 68px;
    left: 0;
    width: 100%;
    height: calc(100vh - 68px);
    background: rgba(11, 14, 20, 0.98);
    backdrop-filter: blur(24px);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 40px 24px;
    gap: 24px;
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.35s ease;
    z-index: 1050;
    overflow-y: auto;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    font-size: 1.2rem;
    font-weight: 600;
    padding: 10px 0;
    width: 100%;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .mobile-invite-btn {
    display: flex !important;
    width: 100%;
    max-width: 320px;
    margin-top: 10px;
    justify-content: center;
    font-size: 1rem;
    padding: 14px 24px;
  }

  /* Hero Section Móvil */
  .hero {
    padding: 110px 0 60px;
  }
  .hero-title {
    font-size: clamp(2rem, 7.5vw, 2.8rem);
    line-height: 1.2;
    margin-bottom: 16px;
  }
  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 28px;
  }
  .badge-live {
    font-size: 0.8rem;
    padding: 6px 14px;
    margin-bottom: 20px;
  }
  .hero-cta {
    flex-direction: column;
    width: 100%;
    gap: 14px;
  }
  .hero-cta .btn {
    width: 100%;
    justify-content: center;
    padding: 16px 20px;
    font-size: 1rem;
  }

  /* Sound Demo Box Móvil */
  .sound-demo-box {
    flex-direction: column;
    text-align: center;
    padding: 20px;
    gap: 16px;
    margin-top: 30px;
    width: 100%;
  }
  .sound-info {
    text-align: center;
    width: 100%;
  }
  .sound-title {
    font-size: 1rem;
  }
  .sound-desc {
    font-size: 0.85rem;
  }
  .wave-bars {
    justify-content: center;
    width: 100%;
  }

  /* Grids en Móvil */
  .feature-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .card {
    padding: 28px 22px;
  }

  .voice-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .voice-card {
    padding: 16px 18px;
    border-radius: var(--radius-md);
  }
  .voice-card:active {
    transform: scale(0.98);
    background: var(--bg-card-hover);
  }

  /* Comandos en Móvil */
  .commands-wrapper {
    gap: 12px;
  }
  .command-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 18px 16px;
  }
  .cmd-badge {
    font-size: 0.85rem;
    word-break: break-word;
  }
  .cmd-desc {
    font-size: 0.9rem;
    text-align: left;
  }

  /* Sección Acerca de & Soporte Móvil */
  .ticket-card {
    padding: 30px 20px;
    border-radius: var(--radius-md);
  }
  .ticket-card h3 {
    font-size: 1.35rem;
  }
  .ticket-card .btn {
    width: 100%;
    font-size: 1rem;
    padding: 16px 20px;
  }

  /* Footer Móvil */
  .footer {
    padding: 40px 0 24px;
    margin-top: 50px;
  }
  .footer-grid {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 20px;
  }
  .footer-links {
    flex-direction: column;
    gap: 14px;
    align-items: center;
  }
}

/* Pantallas Extra Pequeñas (<= 380px) */
@media (max-width: 380px) {
  .hero-title {
    font-size: 1.8rem;
  }
  .logo {
    font-size: 1.2rem;
  }
  .logo-icon {
    font-size: 1.5rem;
  }
  .btn-lg {
    padding: 14px 16px;
    font-size: 0.95rem;
  }
}