/* ============================================================
   VARIABLES GLOBALES CSS3
   ------------------------------------------------------------
   Sistema centralizado de colores y espaciado
   ============================================================ */
:root {
    /* Colores corporativos */
    --color-primary: #0C4569;
    --color-white: #ffffff;
    --color-text: #333333;
    
    /* Sistema de espaciado con clamp() */
    --spacing-xs: clamp(0.25rem, 1vw, 0.5rem);
    --spacing-sm: clamp(0.5rem, 2vw, 1rem);
    --spacing-md: clamp(1rem, 3vw, 1.5rem);
    --spacing-lg: clamp(1.5rem, 4vw, 2.5rem);
    
    /* Tamaños de fuente responsivos */
    --font-size-small: clamp(0.7rem, 2vw, 0.8rem);
    --font-size-nav: clamp(12px, 3vw, 14px);
    
    /* Transiciones */
    --transition-normal: 0.3s ease;
    
    /* Border radius */
    --radius-sm: 5px;
    --radius-md: 10px;
    --radius-full: 50%;
}

/* ============================================================
   RESET MODERNO CSS3
   ============================================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

/* ============================================================
   BODY - CSS3 GRID LAYOUT
   ------------------------------------------------------------
   Grid en lugar de flexbox para mejor control
   ============================================================ */
body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: var(--color-white);
    
    /* CSS3 Grid Layout */
    display: grid;
    grid-template-rows: auto auto 1fr auto;
    min-height: 100vh;
}

/* ============================================================
   CONTENEDOR GENÉRICO
   ============================================================ */
.container {
    width: min(90%, 1200px); /* CSS3: min() para ancho adaptativo */
    margin-inline: auto; /* CSS3 Logical Property */
    padding-inline: 15px;
}

/* ============================================================
   HEADER
   ============================================================ */
header {
    text-align: center;
    padding-block: 20px; /* CSS3 Logical Property */
}

/* Contenedor del logo principal con aspect-ratio */
.main-logo-container {
    width: clamp(150px, 30vw, 200px); /* CSS3: tamaño adaptativo */
    aspect-ratio: 1; /* CSS3: mantiene proporción cuadrada */
    margin-inline: auto; /* CSS3 Logical Property */
    margin-block-end: 20px;
    overflow: hidden;
    border-radius: var(--radius-full);
    display: grid;
    place-items: center; /* CSS3: centra en una línea */
}

.main-logo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================================
   NAVEGACIÓN - CSS3 FLEXBOX CON GAP
   ============================================================ */
nav {
    background-color: var(--color-primary);
    width: 100%;
}

nav ul {
    list-style-type: none;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: clamp(50px, 15vw, 200px); /* CSS3: espaciado adaptativo */
    margin: 0;
    padding: 0;
}

nav ul li {
    display: inline-block;
}

nav ul li a {
    color: var(--color-white);
    text-decoration: none;
    padding-block: 10px; /* CSS3 Logical Property */
    padding-inline: 15px;
    display: inline-block;
    font-family: Arial, sans-serif;
    font-weight: bold;
    font-size: var(--font-size-nav); /* CSS3: clamp() automático */
    
    /* CSS3: Transición optimizada */
    transition: all var(--transition-normal);
    border-radius: var(--radius-md);
    will-change: background-color, color;
}

nav ul li a:hover,
nav ul li a:focus {
    background-color: var(--color-white);
    color: var(--color-primary);
}

/* CSS3: Focus visible para accesibilidad */
nav ul li a:focus-visible {
    outline: 3px solid var(--color-white);
    outline-offset: 2px;
}

/* ============================================================
   CONTENIDO PRINCIPAL
   ============================================================ */
main {
    width: 100%;
    max-width: 1200px;
    margin-inline: auto; /* CSS3 Logical Property */
    margin-block: 20px; /* CSS3 Logical Property */
    padding-inline: 15px;
    padding-block-end: 60px;
}

/* ============================================================
   SECCIÓN PROTOCOLO CON MARCA DE AGUA
   ============================================================ */
.protocolo {
    position: relative;
    overflow: hidden;
    contain: layout; /* CSS3: aislamiento de rendering */
}

.protocolo h2 {
    text-align: center;
    color: var(--color-primary);
}

/* CSS3: Marca de agua optimizada */
.watermark {
    position: absolute;
    inset: 50% auto auto 50%; /* CSS3: shorthand para top/right/bottom/left */
    transform: translate(-50%, -50%) translateZ(0); /* CSS3: GPU acceleration */
    opacity: 0.2;
    pointer-events: none;
    z-index: 0;
    width: clamp(150px, 19%, 300px); /* CSS3: tamaño adaptativo */
    height: auto;
    will-change: opacity; /* CSS3: optimización de rendering */
}

.protocolo-content {
    position: relative;
    z-index: 1;
}

.text-content {
    position: relative;
    z-index: 0;
}

/* CSS3: Elementos por encima de la marca de agua */
.section:not(.protocolo),
nav,
footer,
.main-logo-container {
    position: relative;
    z-index: 2;
}

/* ============================================================
   SERVICIOS - CSS3 GRID
   ------------------------------------------------------------
   Grid en lugar de flexbox para mejor control responsive
   ============================================================ */
.services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); /* CSS3: grid responsive automático */
    gap: 20px; /* CSS3: gap en lugar de margins */
}

.adultos,
.pareja {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 20px;
    border-radius: var(--radius-sm);
    contain: layout; /* CSS3: optimización de rendering */
}

.adultos h2,
.pareja h2 {
    margin-block-start: 0;
    margin-block-end: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px; /* CSS3: gap en lugar de margin */
}

.adultos ul,
.pareja ul {
    padding-inline-start: 20px; /* CSS3 Logical Property */
    margin-block-start: 0;
}

/* CSS3: GIFs en las secciones */
.section-gif {
    width: 40px;
    height: 40px;
    aspect-ratio: 1; /* CSS3: mantiene proporción */
    border-radius: var(--radius-full);
    overflow: hidden;
    display: grid;
    place-items: center; /* CSS3: centra en una línea */
    background-color: var(--color-white);
}

.section-gif img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================================
   FOOTER - CSS3 GRID
   ============================================================ */
footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding-block: 10px;
    width: 100%;
}

.footer-content {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px; /* CSS3: gap en lugar de margins */
    padding-inline: 20px;
    margin-block-end: 10px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px; /* CSS3: gap en lugar de margin-right */
}

.contact-item img {
    width: 24px;
    height: auto;
}

.contact-item a {
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: center;
    gap: 10px; /* CSS3: gap */
    transition: text-decoration var(--transition-normal);
}

/* Contenedor para GIFs en el footer */
.gif-container {
    width: 50px;
    height: 50px;
    aspect-ratio: 1; /* CSS3: mantiene proporción */
    overflow: hidden;
    border-radius: var(--radius-full);
    display: grid;
    place-items: center;
    background-color: transparent;
}

.footer-gif,
.footer-png {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Copyright */
.copyright {
    text-align: center;
    font-size: var(--font-size-small);
    padding: 10px 20px;
    border-block-start: 1px solid rgb(255 255 255 / 20%); /* CSS3: rgb con alpha */
}

.copyright a {
    color: #ddd;
    text-decoration: none;
    transition: text-decoration var(--transition-normal);
}

.copyright a:hover {
    text-decoration: underline;
}

/* Enlace de WhatsApp */
.whatsapp a {
    color: var(--color-white);
    text-decoration: none;
}

.whatsapp a:hover {
    text-decoration: underline;
}

/* ============================================================
   MEDIA QUERIES CSS3
   ------------------------------------------------------------
   Queries optimizadas con menos código gracias a clamp()
   ============================================================ */

/* Pantallas medianas (≤ 900px) */
@media (max-width: 900px) {
    html,
    body {
        overflow-x: hidden;
        width: 100%;
        position: relative;
    }

    nav ul {
        flex-direction: row;
        justify-content: space-between;
        gap: 0; /* Elimina gap en móvil */
    }

    nav ul li {
        flex: 1;
    }

    nav ul li a {
        padding-block: 10px;
        padding-inline: 10px;
        white-space: nowrap;
        text-align: center;
        display: block;
        width: 100%;
    }

    .watermark {
        width: clamp(150px, 70%, 200px);
    }

    .adultos,
    .pareja {
        margin-block: 10px;
        padding: 15px;
    }

    .footer-content {
        flex-direction: column;
        padding-inline: 15px;
    }

    .contact-item {
        width: 100%;
        justify-content: center;
    }

    .gif-container {
        width: 40px;
        height: 40px;
    }

    main {
        padding-inline: 15px;
    }
}

/* Pantallas muy pequeñas (≤ 480px) */
@media (max-width: 480px) {
    nav ul li a {
        padding-block: 10px;
        padding-inline: 6px;
    }

    .services,
    main,
    .footer-content {
        padding-inline: 10px;
    }

    .gif-container {
        width: 35px;
        height: 35px;
    }

    .footer-content {
        flex-direction: column;
        align-items: center;
    }

    .contact-item {
        margin-block: 10px;
    }
}

/* ============================================================
   CSS3: PREFERS-REDUCED-MOTION (ACCESIBILIDAD)
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ============================================================
   OPTIMIZACIONES CSS3 DE RENDIMIENTO
   ============================================================ */

/* CSS3: Lazy rendering automático */
.protocolo,
.adultos,
.pareja {
    content-visibility: auto;
    contain-intrinsic-size: 0 300px;
}

/* CSS3: Imágenes optimizadas */
img {
    height: auto;
    max-width: 100%;
    display: block;
    content-visibility: auto;
}

/* Contenedores estables */
.container,
.content,
main,
article {
    min-height: 1px;
    contain: layout;
}

/* Formularios estables */
input,
textarea,
select,
button {
    box-sizing: border-box;
    font-family: inherit;
    font-size: inherit;
}

/* CSS3: Clearfix moderno */
.clearfix {
    display: flow-root;
}

/* Fallback para navegadores antiguos */
.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

/* ============================================================
   CSS3: PRINT STYLES (OPTIMIZACIÓN PARA IMPRESIÓN)
   ============================================================ */
@media print {
    nav,
    footer {
        display: none;
    }

    body {
        color: black;
        background: white;
    }

    .protocolo,
    .adultos,
    .pareja {
        page-break-inside: avoid;
    }

    * {
        box-shadow: none !important;
        text-shadow: none !important;
    }
}

/* ============================================================
   FIN DEL CSS3 OPTIMIZADO
   ============================================================ */

/* ============================================================
   FOOTER LEGAL - AÑADIDO
   Solo la barra legal, respetando todo lo demás
   ============================================================ */

.footer-legal-bar {
    background-color: rgba(0, 0, 0, 0.15);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: clamp(8px, 2vw, 12px) 20px;
}

.footer-legal-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-copy-text {
    color: rgba(255, 255, 255, 0.8);
    font-size: clamp(0.7rem, 1.8vw, 0.85rem);
    font-weight: normal;
}

.footer-legal-links {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.footer-legal-links a {
    color: #ffffff;
    font-size: clamp(0.7rem, 1.8vw, 0.85rem);
    text-decoration: none;
    transition: opacity 0.3s ease;
    white-space: nowrap;
    font-weight: 500;
}

.footer-legal-links a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.footer-legal-links .separator {
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .footer-legal-bar {
        padding: 10px 15px;
    }
    
    .footer-legal-content {
        flex-direction: column;
        text-align: center;
        gap: 6px;
    }
    
    .footer-legal-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .footer-legal-bar {
        padding: 8px 10px;
    }
    
    .footer-copy-text {
        font-size: 0.7rem;
        width: 100%;
        text-align: center;
    }
    
    .footer-legal-links {
        width: 100%;
        justify-content: center;
        gap: 6px;
    }
    
    .footer-legal-links a {
        font-size: 0.7rem;
        padding: 2px 0;
    }
    
    .footer-legal-links .separator {
        font-size: 0.7rem;
    }
}

@media (max-width: 380px) {
    .footer-legal-links a {
        font-size: 0.65rem;
    }
    
    .footer-legal-links .separator {
        font-size: 0.65rem;
        margin: 0 2px;
    }
    
    .footer-legal-links {
        gap: 4px;
    }
}