/* ============================================================
   legal-pages.css - Páginas Legales (Ayuda, Política, Condiciones)
   Estilos responsive (mobile-first) para mobile y desktop
   ============================================================ */

/* ========== 1. VARIABLES CSS (Design Tokens) ========== */

:root {
    /* ===== Colores Principal ===== */
    --color-primary: #02478c;           /* Azul principal INDESmed */
    --color-primary-light: #0e92c6;     /* Azul claro */
    --color-primary-dark: #023a73;      /* Azul oscuro */
    
    /* ===== Colores Secundarios ===== */
    --color-secondary: #00a86b;          /* Verde salud */
    --color-accent: #f77f00;            /* Naranja acento */
    
    /* ===== Colores de Texto ===== */
    --color-text: #2d3748;              /* Texto principal */
    --color-text-secondary: #4a5568;     /* Texto secundario */
    --color-text-muted: #6c757d;        /* Texto atenuado */
    --color-text-light: #a0aec0;        /* Texto claro */
    
    /* ===== Colores de Fondo ===== */
    --color-bg: #ffffff;                /* Fondo principal */
    --color-bg-light: #f8f9fa;          /* Fondo claro */
    --color-bg-section: #f5f7fa;        /* Fondo de secciones */
    
    /* ===== Espaciado (Sistema 8px) ===== */
    --spacing-xs: 0.5rem;    /* 8px */
    --spacing-sm: 1rem;      /* 16px */
    --spacing-md: 1.5rem;    /* 24px */
    --spacing-lg: 2rem;      /* 32px */
    --spacing-xl: 3rem;      /* 48px */
    --spacing-xxl: 5rem;     /* 80px */
    
    /* ===== Tipografía ===== */
    --font-family-primary: 'Ubuntu', 'Verdana', system-ui, sans-serif;
    --font-family-heading: 'Ubuntu', system-ui, sans-serif;
    
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.25rem;      /* 20px */
    --font-size-2xl: 1.5rem;      /* 24px */
    --font-size-3xl: 1.875rem;   /* 30px */
    --font-size-4xl: 2.25rem;    /* 36px */
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* ===== Bordes y Radios ===== */
    --border-radius-sm: 0.5rem;      /* 8px */
    --border-radius-md: 0.75rem;    /* 12px */
    --border-radius-lg: 1rem;       /* 16px */
    
    --border-width: 1px;
    --border-color: #e5e7eb;
    
    /* ===== Sombras ===== */
    --shadow-sm: 0 1px 2px 0 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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* ===== Transiciones ===== */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* ===== Z-index ===== */
    --z-sticky: 1020;
    
    /* ===== Breakpoints ===== */
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
}

/* ========== 2. RESET Y BASE ========== */

/* Reset mínimo para páginas legales */
.legal-pages-container *,
.legal-pages-container *::before,
.legal-pages-container *::after {
    box-sizing: border-box;
}

/* ========== 3. CONTENEDOR PRINCIPAL ========== */

.legal-pages-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
    background-color: var(--color-bg);
}

/* Mobile: padding reducido */
@media (max-width: 767px) {
    .legal-pages-container {
        padding: var(--spacing-md) var(--spacing-sm);
    }
}

/* ========== 4. HEADER ========== */

.legal-pages-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
   
}

/* ========== 5. CONTENIDO PRINCIPAL ========== */

.legal-pages-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

/* Desktop: layout de dos columnas (índice + contenido) */
@media (min-width: 1024px) {
    .legal-pages-content {
        flex-direction: row;
        align-items: flex-start;
        gap: var(--spacing-xl);
    }
}

/* ========== 6. ÍNDICE DE NAVEGACIÓN ========== */

.legal-pages-index {
    order: 1;
    width: 100%;
    margin-bottom: var(--spacing-lg);
}

/* Desktop: índice sticky en sidebar */
@media (min-width: 1024px) {
    .legal-pages-index {
        position: sticky;
        top: calc(var(--spacing-lg) + 60px); /* Altura del header + offset */
        width: 280px;
        flex-shrink: 0;
        margin-bottom: 0;
        max-height: calc(100vh - 120px);
        overflow-y: auto;
    }
}

.legal-index-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin: 0 0 var(--spacing-md) 0;
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
}

.legal-index-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.legal-index-item {
    margin: 0;
    padding: 0;
}

.legal-index-link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-base);
    border-left: 3px solid transparent;
}

.legal-index-link:hover {
    color: var(--color-primary);
    background-color: var(--color-bg-light);
    border-left-color: var(--color-primary);
    padding-left: calc(var(--spacing-md) + 3px);
}

.legal-index-link:active,
.legal-index-link:focus {
    outline: 2px solid var(--color-primary-light);
    outline-offset: 2px;
}

/* Estado activo (cuando se hace scroll a la sección) */
.legal-index-link.active {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    background-color: var(--color-bg-light);
    border-left-color: var(--color-primary);
}

/* Mobile: índice colapsable */
@media (max-width: 1023px) {
    .legal-index-toggle {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        padding: var(--spacing-md);
        background-color: var(--color-bg-light);
        border: var(--border-width) solid var(--border-color);
        border-radius: var(--border-radius-md);
        font-family: var(--font-family-heading);
        font-size: var(--font-size-lg);
        font-weight: var(--font-weight-semibold);
        color: var(--color-primary);
        cursor: pointer;
        transition: all var(--transition-base);
    }
    
    .legal-index-toggle:hover {
        background-color: var(--color-primary);
        color: var(--color-bg);
    }
    
    .legal-index-toggle::after {
        content: '▼';
        font-size: var(--font-size-sm);
        transition: transform var(--transition-base);
    }
    
    .legal-index-toggle[aria-expanded="true"]::after {
        transform: rotate(180deg);
    }
    
    .legal-index-wrapper {
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-slow) ease-out;
    }
    
    .legal-index-wrapper[aria-hidden="false"] {
        max-height: 2000px; /* Valor suficientemente grande */
        margin-top: var(--spacing-md);
    }
}

/* Desktop: ocultar toggle */
@media (min-width: 1024px) {
    .legal-index-toggle {
        display: none;
    }
    
    .legal-index-wrapper {
        max-height: none !important;
        overflow: visible !important;
    }
}

/* ========== 7. ARTÍCULO PRINCIPAL ========== */

.legal-pages-article {
    flex: 1;
    min-width: 0; /* Permite que el contenido se ajuste */
}

/* Desktop: orden del artículo */
@media (min-width: 1024px) {
    .legal-pages-article {
        order: 2;
    }
}

/* ========== 8. SECCIONES ========== */

.legal-section {
    margin-bottom: var(--spacing-xxl);
    padding-bottom: var(--spacing-xl);
    scroll-margin-top: calc(var(--spacing-lg) + 60px); /* Offset para sticky header */
    border-bottom: none !important; /* Evitar conflicto con mobile.css y duplicación */
}

.legal-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
}

.legal-section-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin: 0 0 var(--spacing-lg) 0;
    line-height: var(--line-height-tight);
    position: relative;
    padding-bottom: var(--spacing-md);
    border-bottom: none !important; /* Evitar conflicto con mobile.css */
}

.legal-section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
    margin-top: var(--spacing-md);
    border-radius: var(--border-radius-full);
}

.legal-section-subtitle {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin: 0 0 var(--spacing-md) 0;
    line-height: var(--line-height-normal);
}

.legal-section-content {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--color-text);
}

.legal-section-content p {
    margin: 0 0 var(--spacing-md) 0;
    text-align: justify;
}

.legal-section-content p:last-child {
    margin-bottom: 0;
}

/* Enlaces dentro del contenido */
.legal-section-content a {
    color: var(--color-primary);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.legal-section-content a:hover {
    color: var(--color-primary-light);
    text-decoration: none;
}

.legal-section-content a:focus {
    outline: 2px solid var(--color-primary-light);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Listas dentro del contenido */
.legal-section-content ul,
.legal-section-content ol {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-xl);
}

.legal-section-content li {
    margin-bottom: var(--spacing-sm);
    line-height: var(--line-height-relaxed);
}

/* ========== 9. MEDIA QUERIES ========== */

/* Tablet (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    .legal-pages-container {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
    
    .legal-section-title {
        font-size: var(--font-size-4xl);
    }
    
    .legal-section-content {
        font-size: var(--font-size-lg);
    }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
    .legal-pages-container {
        padding: var(--spacing-xxl) var(--spacing-xl);
    }
    
    .legal-section-title {
        font-size: var(--font-size-4xl);
    }
    
    .legal-section-content {
        font-size: var(--font-size-lg);
    }
    
    .legal-section-content p {
        text-align: left;
    }
}

/* Desktop grande (1280px+) */
@media (min-width: 1280px) {
    .legal-pages-container {
        max-width: 1400px;
    }
}

/* Mobile pequeño (< 430px) */
@media (max-width: 429px) {
    .legal-pages-container {
        padding: var(--spacing-sm);
    }
    
    .legal-section-title {
        font-size: var(--font-size-2xl);
    }
    
    .legal-section-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .legal-section-content {
        font-size: var(--font-size-sm);
    }
    
    .legal-section-content p {
        text-align: left;
    }
}

/* ========== 10. UTILIDADES ========== */

/* Clases de utilidad para espaciado */
.legal-mt-sm { margin-top: var(--spacing-sm); }
.legal-mt-md { margin-top: var(--spacing-md); }
.legal-mt-lg { margin-top: var(--spacing-lg); }
.legal-mt-xl { margin-top: var(--spacing-xl); }

.legal-mb-sm { margin-bottom: var(--spacing-sm); }
.legal-mb-md { margin-bottom: var(--spacing-md); }
.legal-mb-lg { margin-bottom: var(--spacing-lg); }
.legal-mb-xl { margin-bottom: var(--spacing-xl); }

/* Clases de utilidad para texto */
.legal-text-center { text-align: center; }
.legal-text-left { text-align: left; }
.legal-text-primary { color: var(--color-primary); }
.legal-text-secondary { color: var(--color-text-secondary); }

/* ========== 11. COMPATIBILIDAD CON ESTRUCTURA ANTIGUA ========== */

/* Mantener compatibilidad con IDs antiguos */
#todo.legal-pages-container {
    /* Hereda estilos de .legal-pages-container */
}

#arriba.legal-pages-header {
    /* Hereda estilos de .legal-pages-header */
}

#ayuda_div.legal-pages-content {
    /* Hereda estilos de .legal-pages-content */
}

/* Compatibilidad con clases antiguas */
.Blue {
    color: var(--color-primary) !important;
}

/* Scroll suave para anclas */
html {
    scroll-behavior: smooth;
}

/* Ajuste para scroll con header sticky */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-padding-top: calc(var(--spacing-lg) + 60px);
    }
}

/* Desactivar animaciones si el usuario prefiere movimiento reducido */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}