/* =========================================
   VARIABLES CSS: TEMA ZENITH FINANCE
   ========================================= */
:root {
  /* Colores de Fondo - Adaptados al Azul Marino del Logo */
  --bg-color-main: #060b13; /* Azul marino ultra oscuro para el fondo */
  --bg-color-app: #0e1522;  /* Azul marino medio para el contenedor */
  --bg-color-input: #172033; /* Azul marino claro para inputs y tarjetas */
  
  /* Colores de Texto */
  --text-color-main: #ffffff;
  --text-color-subtle: #8b9bb4; /* Gris azulado elegante */
  --text-color-light-grey: #64748b;
  --text-color-dark: #060b13;
  
  /* Colores de Acento e Interacción */
  --color-accent: #00d26a; /* El Verde Esmeralda de la flecha de Zenith */
  --color-expense: #ff4757; /* Rojo para gastos */
  --color-edit: #ffeb3b;    /* Amarillo edición */
  --color-border: #1e293b;
  --color-shadow: rgba(0, 0, 0, 0.6);
  
  /* Tipografía */
  --font-family-segoe: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

body {
  font-family: var(--font-family-segoe);
  background-color: var(--bg-color-main);
  color: var(--text-color-main);
  display: flex;
  justify-content: center;
}

.app-container {
  width: 100%;
  max-width: 400px; /* Simula la pantalla de un celular */
  min-height: 100vh; /* Consider adding fallback or dynamic viewport units for full robustness on mobile */
  background-color: var(--bg-color-app);
  padding: 20px;
  box-shadow: 0 0 20px var(--color-shadow);
}

/* =========================================
   ENCABEZADO Y SALDO
   ========================================= */
header {
  text-align: center;
  margin-bottom: 30px;
  padding-top: 20px;
}

header h1 {
  font-size: 1.2rem;
  color: var(--text-color-light-grey);
  margin-bottom: 10px;
}

header h2 {
  /* Título responsivo usando clamp(mín, preferido, máx) */
  font-size: clamp(2.5rem, 8vw, 3.5rem); 
  color: var(--color-accent); /* Verde neón para el saldo */
}

header p {
  font-size: 0.9rem;
  color: var(--text-color-subtle);
}

/* =========================================
   SECCIÓN DE CAPTURA DE DATOS
   ========================================= */
.input-section {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 30px;
}

input, select {
  width: 100%;
  padding: 15px;
  border: none;
  border-radius: 10px;
  background-color: var(--bg-color-input);
  color: white;
  font-size: 1rem;
  outline: none;
  font-family: inherit; /* Asegura el uso correcto de la fuente en select */
}

input::placeholder {
  color: var(--text-color-light-grey);
}

.botones-accion {
  display: flex;
  gap: 10px;
}

button {
  flex: 1;
  padding: 15px;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  color: white;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-rojo {
  background-color: var(--color-expense);
}

.btn-rojo:hover, .btn-rojo:focus {
  background-color: #ff3c3c;
  box-shadow: 0 4px 8px rgba(255, 82, 82, 0.4);
}

.btn-verde {
  background-color: var(--color-accent);
  color: var(--text-color-dark);
}

.btn-verde:hover, .btn-verde:focus {
  background-color: #00bf63;
  box-shadow: 0 4px 8px rgba(0, 230, 118, 0.4);
}

/* =========================================
   DASHBOARD / PILAR 2
   ========================================= */
.dashboard-section {
  background-color: var(--bg-color-input);
  border-radius: 15px;
  padding: 20px;
  margin-bottom: 25px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.stats-grid {
  display: flex;
  justify-content: space-between;
  margin-bottom: 20px;
}

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 48%;
  background-color: var(--bg-color-app);
  padding: 15px;
  border-radius: 10px;
}

.stat-card span {
  color: var(--text-color-light-grey);
  font-size: 0.85rem;
  margin-bottom: 5px;
}

.stat-card strong {
  font-size: 1.2rem;
}

.medidor-container {
  margin-top: 10px;
}

.medidor-etiquetas {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-color-subtle);
  margin-bottom: 8px;
}

.barra-fondo {
  width: 100%;
  height: 10px;
  background-color: #444;
  border-radius: 5px;
  overflow: hidden;
}

.barra-nivel {
  height: 100%;
  width: 0%; /* Intended to be updated by JS */
  background-color: var(--color-accent); /* Por defecto verde */
  transition: width 0.5s ease, background-color 0.5s ease;
}

.mensaje-alerta {
  text-align: center;
  font-size: 0.85rem;
  margin-top: 12px;
  font-style: italic;
}

/* =========================================
   PUENTE A LA LIBERTAD / PILAR 3
   ========================================= */
.oculto {
  display: none !important;
}

.bridge-section {
  background: linear-gradient(145deg, #162a1c, #1e1e1e);
  border: 1px solid var(--color-accent);
  border-radius: 15px;
  padding: 20px;
  margin-bottom: 25px;
  text-align: center;
  box-shadow: 0 0 15px rgba(0, 230, 118, 0.1);
}

.bridge-section h3 {
  color: var(--color-accent);
  font-size: 1.2rem;
  margin-bottom: 10px;
}

#mensaje-excedente {
  font-size: 1rem;
  font-weight: bold;
  color: var(--text-color-main);
}

.subtitulo-bridge {
  font-size: 0.85rem;
  color: var(--text-color-subtle);
  margin-bottom: 15px;
}

.opciones-inversion {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tarjeta-inversion {
  background-color: var(--bg-color-main);
  padding: 15px;
  border-radius: 10px;
  text-decoration: none;
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
  display: block;
  color: inherit; /* Prevent link color issue */
}

.tarjeta-inversion:hover, .tarjeta-inversion:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 10px rgba(0, 230, 118, 0.2);
}

.tarjeta-inversion:active {
  transform: scale(0.98);
}

.tarjeta-inversion h4 {
  color: #e0e0e0;
  margin-bottom: 5px;
  font-size: 1rem;
}

.tarjeta-inversion p {
  font-size: 0.8rem;
  color: #888;
}

/* =========================================
   MODAL Y EXPORTACIÓN / PILAR 4
   ========================================= */
.modal {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(5px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000; /* Para que quede por encima de todo */
}

.modal-contenido {
  background-color: var(--bg-color-app);
  padding: 30px;
  border-radius: 15px;
  text-align: center;
  width: 90%;
  max-width: 350px;
  border: 1px solid var(--color-border);
}

.modal-contenido h2 { margin-bottom: 10px; color: #fff; font-size: 1.5rem; }
.modal-contenido p { color: var(--text-color-subtle); margin-bottom: 20px; font-size: 0.9rem; }
.modal-contenido input { margin-bottom: 20px; text-align: center; }

.btn-secundario {
  background-color: transparent;
  border: 1px solid #555;
  color: var(--text-color-subtle);
  width: 100%;
  margin-top: 20px;
  transition: all 0.3s ease;
}

.btn-secundario:hover, .btn-secundario:focus {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 0 10px rgba(0, 230, 118, 0.2);
}

/* =========================================
   HISTORIAL DE MOVIMIENTOS
   ========================================= */
.historial-section h3 {
  font-size: 1.1rem;
  margin-bottom: 15px;
  color: var(--text-color-subtle);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 5px;
}

.movimiento {
  display: flex;
  justify-content: space-between;
  background-color: var(--bg-color-input);
  padding: 15px;
  border-radius: 10px;
  margin-bottom: 10px;
}

.movimiento-info {
  display: flex;
  flex-direction: column;
}

.movimiento-categoria {
  font-size: 0.8rem;
  color: var(--text-color-subtle);
}

.monto-gasto { color: var(--color-expense); font-weight: bold; }
.monto-ingreso { color: var(--color-accent); font-weight: bold; }

/* Botones de acción (Eliminar y Editar) */
.movimiento-acciones {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-eliminar, .btn-editar {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 5px;
  transition: transform 0.2s, color 0.2s;
  color: var(--text-color-main);
}

.btn-eliminar:focus, .btn-editar:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.btn-eliminar:hover {
  transform: scale(1.2);
  color: var(--color-expense);
}

.btn-editar:hover {
  transform: scale(1.2);
  color: var(--color-edit); /* Brillo amarillo al pasar el mouse */
}

/* =========================================
   MEJORA UX: HISTORIAL SCROLLEABLE PREMIUM
   ========================================= */
/* Especificaciones para la barra de scroll, funciona en navegadores WebKit (Chrome, Safari, Edge) */
#lista-movimientos {
  list-style: none;
  max-height: 350px; /* Altura máxima antes de hacer scroll */
  overflow-y: auto;  /* Activa el scroll vertical automático */
  padding-right: 5px; /* Espacio para que la barra no tape el texto */
}

/* Diseño de la barra de scroll (Estilo App Nativa) */
#lista-movimientos::-webkit-scrollbar {
  width: 6px;
}
#lista-movimientos::-webkit-scrollbar-track {
  background: var(--bg-color-app);
  border-radius: 10px;
}
#lista-movimientos::-webkit-scrollbar-thumb {
  background: #444;
  border-radius: 10px;
}
#lista-movimientos::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent); /* Se ilumina en verde al pasar el mouse */
}

/* =========================================
   ESTILOS DEL CENTRO DE INTELIGENCIA (VISTAS)
   ========================================= */
.header-secundario {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 15px;
  margin-bottom: 25px;
  padding-top: 10px;
}

.header-secundario h2 {
  font-size: 1.5rem;
  color: var(--text-color-main);
  margin: 0;
}

.btn-volver {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--text-color-main);
  padding: 8px 15px;
  border-radius: 8px;
  flex: none;
  font-size: 0.9rem;
}

.btn-volver:hover {
  border-color: var(--text-color-subtle);
}

.filtros-seccion {
  margin-bottom: 25px;
}

.filtros-seccion label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-color-subtle);
  margin-bottom: 8px;
}

.select-premium {
  background-color: var(--bg-color-main);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-weight: bold;
}

.reporte-tarjetas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-bottom: 25px;
}

.reporte-card {
  background-color: var(--bg-color-input);
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  border-bottom: 3px solid transparent;
}

.reporte-card span {
  font-size: 0.8rem;
  color: var(--text-color-subtle);
  display: block;
  margin-bottom: 5px;
}

.reporte-card h3 {
  font-size: 1.5rem;
}

.ingreso-card { border-bottom-color: var(--color-accent); }
.ingreso-card h3 { color: var(--color-accent); }

.gasto-card { border-bottom-color: var(--color-expense); }
.gasto-card h3 { color: var(--color-expense); }

.balance-card {
  grid-column: span 2; /* Ocupa todo el ancho */
  background: linear-gradient(145deg, #1e1e1e, #2c2c2c);
  border: 1px solid var(--color-border);
}

.lista-premium {
  list-style: none;
  margin-top: 15px;
}

.top-gasto-item {
  display: flex;
  justify-content: space-between;
  padding: 12px 15px;
  background-color: var(--bg-color-input);
  margin-bottom: 8px;
  border-radius: 8px;
  border-left: 3px solid var(--color-expense);
}

/* Estilo para el Logo de Zenith */
.logo-imagen {
    width: 140px;
    height: auto;
    margin-bottom: 5px;
    display: block;
    margin-left: auto;
    margin-right: auto;
    filter: drop-shadow(0px 4px 10px rgba(0, 210, 106, 0.2)); /* Sutil brillo verde */
}


/* =========================================
   SISTEMA DE SEGURIDAD (LOGIN Y LOGOUT)
   ========================================= */
.login-screen {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: var(--bg-color-main);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999; /* Por encima de absolutamente todo */
    transition: opacity 0.5s ease;
}

.login-box {
    background-color: var(--bg-color-app);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.8);
    border: 1px solid var(--color-border);
    width: 90%;
    max-width: 350px;
}

.logo-login {
    width: 100px;
    margin-bottom: 15px;
    filter: drop-shadow(0px 4px 10px rgba(0, 210, 106, 0.3));
}

.login-box h2 { color: var(--text-color-main); margin-bottom: 5px; }
.login-box p { color: var(--text-color-subtle); margin-bottom: 30px; font-size: 0.9rem; }

.btn-google {
    background-color: #ffffff !important;
    color: #121212 !important; /* Fuerza el texto oscuro */
    border: 2px solid #e0e0e0 !important;
    padding: 12px 20px !important;
    border-radius: 25px !important;
    font-size: 1rem !important;
    font-weight: bold !important;
    cursor: pointer;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 12px !important;
    width: 100%;
    transition: background-color 0.3s, transform 0.2s;
}

.btn-google img { 
    width: 24px !important; 
    height: 24px !important;
}

.btn-logout {
    position: absolute;
    top: 0; right: 0;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.btn-logout:hover { opacity: 1; }

/* =========================================
   ZONA DE MONETIZACIÓN (ANUNCIOS)
   ========================================= */
.ad-container {
    margin-top: 20px;
    margin-bottom: 20px;
    text-align: center;
    background-color: var(--bg-color-input);
    border-radius: 10px;
    padding: 10px;
    border: 1px dashed var(--color-border);
}

.ad-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-color-subtle);
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ad-placeholder {
    width: 100%;
    height: 60px; /* Tamaño estándar de banner móvil */
    background-color: var(--bg-color-app);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--color-border);
    font-size: 0.9rem;
    border-radius: 5px;
}