/* -------------------------------------------------------------
   BELUGA AI - LANDING PAGE ESTILOS (MÁGICO & PREMIUM)
   ------------------------------------------------------------- */

/* Variables CSS */
:root {
  --bg-dark-base: #030712;
  --bg-dark-gradient: radial-gradient(circle at center, #0b1329 0%, #030712 100%);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border-glass: rgba(255, 255, 255, 0.08);
  --bg-glass: rgba(15, 23, 42, 0.45);
  
  --primary-ai: #818cf8;      /* Indigo */
  --secondary-ai: #a78bfa;    /* Violet */
  --tertiary-ai: #22d3ee;     /* Cyan */
  --gradient-magia: linear-gradient(135deg, var(--secondary-ai) 0%, var(--primary-ai) 50%, var(--tertiary-ai) 100%);
  
  --btn-bg: #ffffff;
  --btn-text: #030712;
  --focus-ring: #22d3ee;
  
  --font-display: 'Outfit', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  
  --radius-lg: 32px;
  --radius-md: 16px;
  --radius-sm: 8px;
}

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

body {
  background: var(--bg-dark-base);
  background-image: var(--bg-dark-gradient);
  color: var(--text-main);
  font-family: var(--font-body);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  padding: 24px;
  position: relative;
}

/* Fondo de partículas / Estrellas */
.stars-container {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.star {
  position: absolute;
  background: white;
  border-radius: 50%;
  opacity: 0;
  animation: float-and-twinkle 6s infinite ease-in-out;
}

@keyframes float-and-twinkle {
  0% { transform: translateY(0) scale(0.5); opacity: 0; }
  50% { opacity: 0.8; }
  100% { transform: translateY(-100px) scale(0.5); opacity: 0; }
}

/* Contenedor de Tarjeta Glassmorphic */
.landing-card-wrapper {
  width: 100%;
  max-width: 620px;
  position: relative;
  z-index: 10;
  animation: fade-slide-up 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fade-slide-up {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.landing-card {
  background: var(--bg-glass);
  backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(139, 92, 246, 0.05);
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Efecto de brillo de fondo en la tarjeta */
.landing-card::after {
  content: '';
  position: absolute;
  top: -150px; left: -150px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.15) 0%, rgba(167, 139, 250, 0) 70%);
  pointer-events: none;
  z-index: -1;
}

/* Logo oficial */
.brand-logo-container {
  margin-bottom: 32px;
}

.brand-logo {
  height: 90px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.1));
}

/* Badge de Estado */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.2);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--tertiary-ai);
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--tertiary-ai);
  box-shadow: 0 0 10px var(--tertiary-ai);
  animation: pulse-dot 2s infinite alternate;
}

@keyframes pulse-dot {
  0% { transform: scale(0.9); opacity: 0.6; }
  100% { transform: scale(1.2); opacity: 1; }
}

/* Título de la Landing (MagIA destacado) */
.landing-title {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.magia-text {
  background: var(--gradient-magia);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 950;
  letter-spacing: -1.5px;
  position: relative;
  display: inline-block;
}

/* Glow en la parte de "IA" de la palabra MagIA */
.magia-text span {
  font-weight: 950;
}

.magia-text span:last-child {
  text-shadow: 0 0 30px rgba(34, 211, 238, 0.6);
}

.landing-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 500px;
  margin: 0 auto 40px;
}

/* Formulario de Suscripción */
.subscribe-form {
  max-width: 480px;
  margin: 0 auto;
}

.input-group {
  display: flex;
  background: rgba(15, 23, 42, 0.6);
  border: 1.5px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 6px;
  transition: var(--transition-smooth);
}

.input-group:focus-within {
  border-color: var(--focus-ring);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.25);
}

.subscribe-input {
  flex-grow: 1;
  background: transparent;
  border: none;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-main);
  padding: 10px 16px;
  outline: none;
  min-width: 0;
}

.subscribe-input::placeholder {
  color: #64748b;
}

.subscribe-btn {
  background: var(--btn-bg);
  color: var(--btn-text);
  border: none;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 12px 24px;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  flex-shrink: 0;
}

.subscribe-btn:hover, .subscribe-btn:focus-visible {
  background: var(--tertiary-ai);
  color: var(--bg-dark-base);
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(34, 211, 238, 0.3);
}

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

/* Accesibilidad Focus Visible */
*:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
}

/* Feedback del Registro */
.subscribe-feedback {
  font-size: 0.9rem;
  margin-top: 16px;
  min-height: 24px;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.subscribe-feedback.success {
  color: #10b981; /* Verde brillante */
}

.subscribe-feedback.error {
  color: #ef4444; /* Rojo brillante */
}

/* Footer de la Landing */
.landing-footer {
  margin-top: 56px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
  font-size: 0.8rem;
  color: #64748b;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.landing-footer a {
  color: var(--primary-ai);
  text-decoration: none;
  transition: var(--transition-smooth);
  font-weight: 500;
}

.landing-footer a:hover, .landing-footer a:focus {
  color: var(--tertiary-ai);
  text-decoration: underline;
}

.wcag-label {
  font-size: 0.75rem;
  opacity: 0.7;
}

/* Responsividad */
@media (max-width: 580px) {
  .landing-card {
    padding: 40px 24px;
  }
  .landing-title {
    font-size: 2rem;
  }
  .input-group {
    flex-direction: column;
    background: transparent;
    border: none;
    gap: 12px;
    padding: 0;
  }
  .subscribe-input {
    background: rgba(15, 23, 42, 0.6);
    border: 1.5px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 14px 16px;
  }
  .subscribe-input:focus {
    border-color: var(--focus-ring);
    box-shadow: 0 0 15px rgba(34, 211, 238, 0.2);
  }
  .subscribe-btn {
    width: 100%;
    justify-content: center;
    padding: 14px;
    border-radius: var(--radius-md);
  }
}