/* =====================================================
   ASO Visual Suite — Estilos Apple HIG
   Estética Cupertino: limpieza, espacio, profundidad
   ===================================================== */

/* Variables de diseño */
:root {
  --color-fondo:       #F5F5F7;
  --color-superficie:  #FFFFFF;
  --color-borde:       rgba(0,0,0,0.08);
  --color-texto:       #1D1D1F;
  --color-secundario:  #6E6E73;
  --color-acento:      #0071E3;
  --color-acento-hover:#0077ED;
  --color-peligro:     #FF3B30;
  --color-exito:       #30D158;
  --color-advertencia: #FF9F0A;
  --color-purple:      #5856D6;

  --radio-xs:  8px;
  --radio-sm:  12px;
  --radio-md:  16px;
  --radio-lg:  20px;
  --radio-xl:  28px;

  --sombra-sm:  0 1px 8px rgba(0,0,0,0.06);
  --sombra-md:  0 4px 24px rgba(0,0,0,0.08);
  --sombra-lg:  0 12px 48px rgba(0,0,0,0.12);
  --sombra-xl:  0 24px 80px rgba(0,0,0,0.16);

  --font-sistema: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', 'Segoe UI', sans-serif;
  --transicion:   all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset mínimo */
*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sistema);
  background: var(--color-fondo);
  color: var(--color-texto);
  margin: 0;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* -------------------------------------------------------
   Tipografía
   ------------------------------------------------------- */
.tipo-display  { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 700; letter-spacing: -0.04em; line-height: 1.1; }
.tipo-titulo   { font-size: clamp(1.5rem, 3vw, 2.5rem); font-weight: 600; letter-spacing: -0.03em; line-height: 1.2; }
.tipo-subtitulo{ font-size: clamp(1rem, 2vw, 1.25rem); font-weight: 400; color: var(--color-secundario); }
.tipo-cuerpo   { font-size: 1rem; line-height: 1.7; }
.tipo-caption  { font-size: 0.75rem; color: var(--color-secundario); }

/* -------------------------------------------------------
   Layout principal
   ------------------------------------------------------- */
.contenedor {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* -------------------------------------------------------
   Sidebar glassmorphism
   ------------------------------------------------------- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 100vh;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-right: 1px solid var(--color-borde);
  display: flex;
  flex-direction: column;
  padding: 24px 0;
  z-index: 100;
  transition: var(--transicion);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 24px 24px;
  border-bottom: 1px solid var(--color-borde);
  text-decoration: none;
  color: var(--color-texto);
}

.sidebar-logo-icono {
  width: 36px;
  height: 36px;
  background: var(--color-acento);
  border-radius: var(--radio-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
}

.sidebar-logo-texto {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-enlace {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radio-sm);
  text-decoration: none;
  color: var(--color-secundario);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transicion);
}

.sidebar-enlace:hover {
  background: rgba(0,0,0,0.04);
  color: var(--color-texto);
}

.sidebar-enlace.activo {
  background: rgba(0, 113, 227, 0.1);
  color: var(--color-acento);
}

.sidebar-enlace svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.sidebar-usuario {
  padding: 16px 24px 0;
  border-top: 1px solid var(--color-borde);
}

.sidebar-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-acento);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  flex-shrink: 0;
}

/* -------------------------------------------------------
   Área de contenido principal
   ------------------------------------------------------- */
.contenido-principal {
  margin-left: 260px;
  min-height: 100vh;
  padding: 32px 40px;
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.abierto { transform: translateX(0); }
  .contenido-principal { margin-left: 0; padding: 24px 20px; }
}

/* -------------------------------------------------------
   Tarjetas
   ------------------------------------------------------- */
.tarjeta {
  background: var(--color-superficie);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio-lg);
  padding: 28px;
  box-shadow: var(--sombra-sm);
  transition: var(--transicion);
}

.tarjeta:hover { box-shadow: var(--sombra-md); }

.tarjeta-sm { padding: 20px; border-radius: var(--radio-md); }
.tarjeta-lg { padding: 40px; border-radius: var(--radio-xl); }

/* -------------------------------------------------------
   Botones
   ------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radio-sm);
  font-family: var(--font-sistema);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transicion);
  white-space: nowrap;
  -webkit-user-select: none;
  user-select: none;
}

.btn-primario {
  background: var(--color-acento);
  color: white;
}
.btn-primario:hover {
  background: var(--color-acento-hover);
  box-shadow: 0 4px 16px rgba(0,113,227,0.35);
  transform: translateY(-1px);
}
.btn-primario:active { transform: translateY(0); }

.btn-secundario {
  background: rgba(0,0,0,0.05);
  color: var(--color-texto);
}
.btn-secundario:hover { background: rgba(0,0,0,0.08); }

.btn-peligro {
  background: var(--color-peligro);
  color: white;
}

.btn-fantasma {
  background: transparent;
  color: var(--color-acento);
  padding: 8px 14px;
}
.btn-fantasma:hover { background: rgba(0,113,227,0.08); }

.btn-lg { padding: 14px 28px; font-size: 1rem; border-radius: var(--radio-md); }
.btn-sm { padding: 7px 14px; font-size: 0.8rem; }
.btn-completo { width: 100%; }

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* -------------------------------------------------------
   Formularios
   ------------------------------------------------------- */
.campo-grupo { margin-bottom: 20px; }

.campo-etiqueta {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-texto);
  margin-bottom: 8px;
}

.campo-input,
.campo-select,
.campo-textarea {
  width: 100%;
  padding: 11px 14px;
  background: var(--color-fondo);
  border: 1.5px solid var(--color-borde);
  border-radius: var(--radio-sm);
  font-family: var(--font-sistema);
  font-size: 0.95rem;
  color: var(--color-texto);
  transition: var(--transicion);
  outline: none;
  appearance: none;
}

.campo-input:focus,
.campo-select:focus,
.campo-textarea:focus {
  border-color: var(--color-acento);
  box-shadow: 0 0 0 3px rgba(0,113,227,0.15);
  background: white;
}

.campo-textarea { resize: vertical; min-height: 100px; }

/* -------------------------------------------------------
   Zona de arrastrar y soltar
   ------------------------------------------------------- */
.zona-drop {
  border: 2px dashed rgba(0,113,227,0.35);
  border-radius: var(--radio-xl);
  padding: 60px 40px;
  text-align: center;
  cursor: pointer;
  transition: var(--transicion);
  background: rgba(0,113,227,0.02);
  position: relative;
}

.zona-drop:hover,
.zona-drop.arrastrando {
  border-color: var(--color-acento);
  background: rgba(0,113,227,0.06);
  transform: scale(1.005);
}

.zona-drop-icono {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.6;
}

.zona-drop-titulo {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-texto);
  margin-bottom: 6px;
}

.zona-drop-subtitulo {
  font-size: 0.85rem;
  color: var(--color-secundario);
}

/* -------------------------------------------------------
   Grid de capturas
   ------------------------------------------------------- */
.grid-capturas {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.captura-miniatura {
  position: relative;
  border-radius: var(--radio-md);
  overflow: hidden;
  aspect-ratio: 9/16;
  background: var(--color-fondo);
  box-shadow: var(--sombra-sm);
  transition: var(--transicion);
}

.captura-miniatura:hover { transform: translateY(-2px); box-shadow: var(--sombra-md); }

.captura-miniatura img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.captura-borrar {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 22px;
  height: 22px;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  border-radius: 50%;
  border: none;
  color: white;
  font-size: 11px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transicion);
  opacity: 0;
}

.captura-miniatura:hover .captura-borrar { opacity: 1; }

/* -------------------------------------------------------
   Progress / Carga
   ------------------------------------------------------- */
.barra-progreso {
  width: 100%;
  height: 4px;
  background: rgba(0,0,0,0.08);
  border-radius: 2px;
  overflow: hidden;
}

.barra-progreso-fill {
  height: 100%;
  background: var(--color-acento);
  border-radius: 2px;
  transition: width 0.4s ease;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 2.5px solid rgba(0,113,227,0.2);
  border-top-color: var(--color-acento);
  border-radius: 50%;
  animation: girar 0.8s linear infinite;
}

@keyframes girar { to { transform: rotate(360deg); } }

/* -------------------------------------------------------
   Tabla de Precios (Landing)
   ------------------------------------------------------- */
.tabla-precios {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 900px) {
  .tabla-precios { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
}

.plan-tarjeta {
  background: var(--color-superficie);
  border: 1.5px solid var(--color-borde);
  border-radius: var(--radio-xl);
  padding: 36px 32px;
  position: relative;
  transition: var(--transicion);
}

.plan-tarjeta:hover { transform: translateY(-4px); box-shadow: var(--sombra-lg); }

.plan-tarjeta.destacado {
  border-color: var(--color-acento);
  background: linear-gradient(135deg, #EBF5FF 0%, white 100%);
}

.plan-badge-popular {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-acento);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.plan-precio {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  margin: 12px 0 4px;
}

.plan-precio .moneda {
  font-size: 1.4rem;
  font-weight: 500;
  vertical-align: super;
}

.plan-precio .periodo {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-secundario);
}

.plan-features {
  list-style: none;
  padding: 0;
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.plan-feature {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
}

.plan-feature-check {
  color: var(--color-exito);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.plan-feature-x {
  color: var(--color-borde);
  font-weight: 700;
  flex-shrink: 0;
}

/* -------------------------------------------------------
   Resultados ASO
   ------------------------------------------------------- */
.resultado-score {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid var(--color-exito);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-exito);
}

.resultado-copy-bloque {
  background: var(--color-fondo);
  border-radius: var(--radio-md);
  padding: 16px;
  font-size: 0.9rem;
  line-height: 1.6;
  position: relative;
  border: 1px solid var(--color-borde);
}

.btn-copiar {
  position: absolute;
  top: 10px;
  right: 10px;
  background: white;
  border: 1px solid var(--color-borde);
  border-radius: var(--radio-xs);
  padding: 4px 10px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: var(--transicion);
  color: var(--color-secundario);
}

.btn-copiar:hover { background: var(--color-acento); color: white; border-color: var(--color-acento); }

.keywords-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.keyword-chip {
  background: rgba(0,113,227,0.1);
  color: var(--color-acento);
  border: 1px solid rgba(0,113,227,0.2);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* -------------------------------------------------------
   Navbar landing
   ------------------------------------------------------- */
.navbar-landing {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 0 40px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(245, 245, 247, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

/* -------------------------------------------------------
   Animaciones de entrada
   ------------------------------------------------------- */
.fade-in { animation: fadeIn 0.5s ease forwards; }
.slide-up { animation: slideUp 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards; }

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Delays escalonados */
.delay-1 { animation-delay: 0.1s; opacity: 0; }
.delay-2 { animation-delay: 0.2s; opacity: 0; }
.delay-3 { animation-delay: 0.3s; opacity: 0; }
.delay-4 { animation-delay: 0.4s; opacity: 0; }

/* -------------------------------------------------------
   Utilidades
   ------------------------------------------------------- */
.separador { height: 1px; background: var(--color-borde); margin: 24px 0; }
.texto-acento { color: var(--color-acento); }
.texto-secundario { color: var(--color-secundario); }
.peso-medio { font-weight: 500; }
.peso-grueso { font-weight: 600; }
.centrado { text-align: center; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}