/**
 * Conversor de Letras - Estilos Personalizados y Animaciones
 * Optimizado para compatibilidad Unicode y diseño premium
 */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --color-brand-500: #6366F1;
  --color-brand-600: #4F46E5;
  --color-accent-500: #EC4899;
}

body {
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Unicode Font Display Stack para asegurar renderizado correcto */
.unicode-font-text {
  font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Symbola", "DejaVu Sans", "Segoe UI Symbol", var(--font-sans);
  word-break: break-word;
  overflow-wrap: break-word;
}

/* Glassmorphism & Cards */
.glass-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.dark .glass-card {
  background: rgba(30, 41, 59, 0.75);
  border: 1px solid rgba(51, 65, 85, 0.7);
}

.glass-nav {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.dark .glass-nav {
  background: rgba(15, 23, 42, 0.9);
  border-bottom: 1px solid rgba(30, 41, 59, 0.8);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #F1F5F9;
}

.dark ::-webkit-scrollbar-track {
  background: #0F172A;
}

::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 9999px;
}

.dark ::-webkit-scrollbar-thumb {
  background: #334155;
}

::-webkit-scrollbar-thumb:hover {
  background: #94A3B8;
}

.dark ::-webkit-scrollbar-thumb:hover {
  background: #475569;
}

/* Card Hover Animation */
.font-card {
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.2s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.2s ease;
}

.font-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -10px rgba(99, 102, 241, 0.15);
}

.dark .font-card:hover {
  box-shadow: 0 12px 24px -10px rgba(124, 58, 237, 0.25);
}

/* Copy Button Feedback Animation */
@keyframes copyPulse {
  0% { transform: scale(1); }
  50% { transform: scale(0.92); }
  100% { transform: scale(1); }
}

.copied-anim {
  animation: copyPulse 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* Gradient text utility */
.gradient-text {
  background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 50%, #EC4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.dark .gradient-text {
  background: linear-gradient(135deg, #818CF8 0%, #A78BFA 50%, #F472B6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Accordion Smooth Transition */
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-item.active .accordion-content {
  max-height: 800px;
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
}

/* Live Bio Mockup Simulator */
.mockup-phone {
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}