/* =========================================
   VARIABLES GLOBALES Y SISTEMA DE DISEÑO
   ========================================= */
@import url('https://fonts.googleapis.com/css2?family=Lexend:wght@300;400;500;600;700&display=swap');

:root {
  /* Paleta de Colores Frater */
  --color-navy: #0A1931;       /* Azul Navy profundo para cabeceras/logos */
  --color-blue: #185ADB;       /* Azul puro para botones primarios y acentos */
  --color-bg: #F4F6F9;         /* Gris muy claro/blanco roto para el fondo de la app */
  --color-surface: #FFFFFF;    /* Blanco puro para tarjetas y modales */
  --color-text-main: #1E293B;  /* Gris muy oscuro para el texto principal */
  --color-text-muted: #64748B; /* Gris medio para subtítulos y texto secundario */
  --color-border: #E2E8F0;     /* Gris claro para bordes sutiles */
  
  /* Tipografía */
  --font-main: 'Lexend', sans-serif;
  
  /* Radios y Sombras */
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
}

/* =========================================
   RESETEO Y ESTILOS BASE (Mobile First)
   ========================================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-surface);
  color: var(--color-text-main);
  -webkit-font-smoothing: antialiased;
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  position: relative;
  box-shadow: var(--shadow-md);
}

/* Tipografía Base */
h1, h2, h3 { font-weight: 600; }
p { line-height: 1.5; }

/* Botones genéricos */
.btn-primary {
  background-color: var(--color-blue);
  color: var(--color-surface);
  border: none;
  padding: 16px;
  border-radius: var(--radius-lg);
  font-family: var(--font-main);
  font-weight: 500;
  font-size: 1rem;
  width: 100%;
  cursor: pointer;
  transition: opacity 0.2s;
}
.btn-primary:active { opacity: 0.8; }
.btn-primary:disabled {
  background-color: var(--color-text-muted);
  cursor: not-allowed;
}
/* =========================================
   ESTILOS ESPECÍFICOS DEL DASHBOARD (index)
   ========================================= */

/* Cabecera Principal */
.dashboard-header {
  background-color: var(--color-navy);
  color: var(--color-surface);
  padding: 40px 24px 30px;
  border-bottom-left-radius: 30px;
  border-bottom-right-radius: 30px;
  margin-bottom: 24px;
}
.dashboard-header img.logo {
  height: 32px;
  margin-bottom: 20px;
  display: block;
}
.dashboard-header h1 {
  font-size: 1.8rem;
  font-weight: 600;
}

/* Calendario Deslizable */
.calendar-section {
  padding: 0 24px;
  margin-bottom: 32px;
}
.calendar-slider {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 10px;
  scrollbar-width: none; /* Firefox */
}
.calendar-slider::-webkit-scrollbar {
  display: none; /* Chrome/Safari */
}
.calendar-day {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 50px;
}
.calendar-day span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}
.calendar-day .date {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-surface);
  border-radius: 50%;
  font-weight: 600;
  font-size: 1.1rem;
  box-shadow: var(--shadow-sm);
}
.calendar-day.active .date {
  background-color: var(--color-blue);
  color: var(--color-surface);
}
.calendar-day.active span {
  color: var(--color-blue);
  font-weight: 600;
}

/* Títulos de Sección */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 24px;
  margin-bottom: 16px;
}
.section-header h2 {
  font-size: 1.3rem;
  color: var(--color-text-main);
}
.section-header a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}

/* Tarjeta Hero (Plan de Lectura) */
.hero-card-container {
  padding: 0 24px;
  margin-bottom: 32px;
}
.hero-card {
  background: linear-gradient(135deg, var(--color-blue), #3b82f6);
  border-radius: var(--radius-lg);
  padding: 24px;
  color: var(--color-surface);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.hero-card h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}
.hero-card p {
  font-size: 0.95rem;
  opacity: 0.9;
  margin-bottom: 20px;
  max-width: 70%;
}
.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-blue);
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-family: var(--font-main);
  font-weight: 600;
  cursor: pointer;
}
.hero-icon {
  position: absolute;
  right: -10px;
  bottom: -10px;
  font-size: 100px;
  opacity: 0.2;
}

/* Cartelera de Eventos (Tarjetas Deslizables) */
.events-slider {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 0 24px 10px 24px;
  scrollbar-width: none;
}
.events-slider::-webkit-scrollbar {
  display: none;
}
.event-card {
  min-width: 220px;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.event-card.has-img { padding: 0; }
.event-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
  border-radius: 0;
}
.event-card.has-img .event-card-inner { padding: 16px 18px 18px; display: flex; flex-direction: column; }
.event-card.has-img .event-tag { margin-top: 0; }
.event-tag {
  align-self: flex-start;
  background-color: rgba(24, 90, 219, 0.1);
  color: var(--color-blue);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.event-card h4 {
  font-size: 1.1rem;
  margin-bottom: 6px;
  color: var(--color-text-main);
}
.event-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  flex-grow: 1;
}
.btn-outline {
  background: transparent;
  color: var(--color-blue);
  border: 1.5px solid var(--color-blue);
  padding: 8px;
  border-radius: var(--radius-full);
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s;
}
.btn-outline:active {
  background-color: var(--color-blue);
  color: var(--color-surface);
}

/* Espaciado para que el nav no tape el contenido */
.content-spacer {
  height: 90px;
}

/* Barra de Navegación Inferior */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: 480px;
  margin: 0 auto;
  background-color: var(--color-surface);
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 12px 10px 24px; /* Padding extra abajo para iOS */
  box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
  border-top-left-radius: 24px;
  border-top-right-radius: 24px;
  z-index: 1000;
}
.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.75rem;
  gap: 4px;
}
.nav-item.active {
  color: var(--color-navy);
  font-weight: 600;
}
.nav-item svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.nav-item.active svg {
  fill: var(--color-navy);
}

/* Botón central de acción (+) */
.nav-fab {
  background-color: var(--color-blue);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-surface);
  box-shadow: 0 4px 10px rgba(24, 90, 219, 0.4);
  transform: translateY(-10px);
}
.nav-fab svg {
  width: 28px;
  height: 28px;
  stroke: currentColor;
}

/* =========================================
   COMPARTIDO — PÁGINAS DE DETALLE
   ========================================= */
.detail-header {
  background-color: var(--color-navy);
  color: var(--color-surface);
  padding: 50px 24px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.detail-header h1 {
  font-size: 1.3rem;
  flex: 1;
}
.btn-back {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: rgba(255,255,255,0.15);
  border-radius: 50%;
  flex-shrink: 0;
  text-decoration: none;
}
.btn-back svg {
  width: 20px;
  height: 20px;
  stroke: white;
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.detail-body {
  padding: 24px;
}
.feedback-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 60vh;
}
.feedback-center h2 {
  font-size: 1.4rem;
  color: var(--color-text-main);
  margin-bottom: 12px;
}
.feedback-center p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 280px;
}
/* ── WhatsApp flotante (global) ─────────────── */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 58px;
  height: 58px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(37,211,102,0.45);
  z-index: 9000;
  transition: transform 0.2s, box-shadow 0.2s;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37,211,102,0.55);
}