/* ============================================================
   VARIABLES GLOBALES CSS3 - PSINCRO FORMULARIO
   ------------------------------------------------------------
   Sistema centralizado de colores, espaciado y transiciones
   ============================================================ */
:root {
    /* Colores corporativos */
    --color-primary: #0C4569;
    --color-primary-dark: #0a3650;
    --color-white: #ffffff;
    --color-text: #333333;
    --color-success: #0a6b0d;
    --color-success-bg: #e8f7df;
    --color-error: #c00;
    --color-error-bg: #ffe8e8;
    --color-disabled: #6c757d;
    
    /* Sistema de espaciado con clamp() */
    --spacing-xs: clamp(0.5rem, 2vw, 0.625rem);
    --spacing-sm: clamp(0.625rem, 2vw, 1rem);
    --spacing-md: clamp(1rem, 3vw, 1.25rem);
    --spacing-lg: clamp(1.25rem, 4vw, 1.875rem);
    --spacing-xl: clamp(1.875rem, 5vw, 3.125rem);
    
    /* Tamaños de fuente responsivos */
    --font-size-small: clamp(13px, 3vw, 14px);
    --font-size-base: clamp(14px, 3vw, 16px);
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 5px;
    --radius-lg: 10px;
    --radius-full: 50%;
    
    /* Sombras */
    --shadow-sm: 0 2px 5px rgb(0 0 0 / 10%);
    --shadow-md: 0 5px 15px rgb(0 0 0 / 30%);
}

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

html {
    scroll-behavior: smooth;
}

/* ============================================================
   BODY - CSS3 GRID LAYOUT
   ============================================================ */
body {
    font-family: Arial, sans-serif;
    min-height: 100vh;
    background-color: var(--color-primary);
    font-size: var(--font-size-base);
    
    /* CSS3 Grid Layout */
    display: grid;
    grid-template-rows: auto 1fr auto;
    
    /* CSS3: Optimización de fuentes */
    font-display: swap;
}

/* ============================================================
   MENÚ DE NAVEGACIÓN SUPERIOR - CSS3 FLEXBOX CON GAP
   ============================================================ */
.menu {
    background-color: var(--color-white);
    width: 100%;
    padding-block: 5px; /* CSS3 Logical Property */
    box-shadow: var(--shadow-sm);
    position: relative;
}

/* Contenedor del menú con logo y enlaces */
.menu-content {
    max-width: 1200px;
    margin-inline: auto; /* CSS3 Logical Property */
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs); /* CSS3: gap en lugar de margin */
}

/* Logo en el menú */
.menu-logo {
    height: 40px;
    width: auto;
    object-fit: contain; /* CSS3: mejor control */
}

/* Lista de navegación con gap */
.menu ul {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: clamp(20px, 5vw, 40px); /* CSS3: espaciado adaptativo */
    margin: 0;
    padding: 0;
    list-style: none;
}

/* Enlaces del menú */
.menu a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: bold;
    padding-block: 10px; /* CSS3 Logical Property */
    padding-inline: 15px;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    
    /* CSS3: Transición optimizada */
    transition: all var(--transition-normal);
    will-change: background-color, color, border-color;
}

/* Efecto hover en enlaces */
.menu a:hover,
.menu a:focus {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* CSS3: Focus visible para accesibilidad */
.menu a:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* ============================================================
   CONTENEDOR PRINCIPAL DEL FORMULARIO
   ============================================================ */
.container {
    max-width: min(600px, 90%);
    margin-block: 50px;
    margin-inline: auto;
    background-color: var(--color-white);
    padding: 30px;
    padding-inline-end: clamp(60px, 12vw, 80px);
    border-radius: var(--radius-lg);
    position: relative;
    box-shadow: var(--shadow-md);
    
    /* CSS3: Optimizaciones */
    contain: layout;
    content-visibility: auto;
}

/* Contenedor principal que ocupa el espacio disponible */
main {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-block: 20px; /* CSS3 Logical Property */
}

/* ============================================================
   LOGO ANIMADO (VÍDEO)
   ============================================================ */
.logo-space {
    position: absolute;
    inset: 40px 20px auto auto; /* CSS3: shorthand para top/right/bottom/left */
    width: clamp(50px, 10vw, 68px); /* CSS3: tamaño adaptativo */
    aspect-ratio: 1; /* CSS3: mantiene proporción cuadrada */
    display: grid;
    place-items: center; /* CSS3: centra en una línea */
}

/* Vídeo del logo */
.logo-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-full);
    pointer-events: none;
    transform: translateZ(0); /* CSS3: GPU acceleration */
}

/* Imagen dentro del espacio del logo */
.logo-space img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* ============================================================
   CAMPOS DEL FORMULARIO - CSS3 OPTIMIZADO
   ============================================================ */

/* Grupo de campos del formulario */
.form-group {
    margin-block-end: var(--spacing-sm); /* CSS3 Logical Property */
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs); /* CSS3: gap para espaciado */
}

/* Campos de nombre y apellidos en línea */
.nombre-apellido {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-sm); /* CSS3: gap en lugar de margins */
}

/* Estilos generales para campos de entrada */
input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-sm);
    color: var(--color-primary);
    font-family: inherit; /* CSS3: hereda fuente */
    font-size: inherit;
    
    /* CSS3: Transición suave */
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

/* CSS3: Estados de foco mejorados */
input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-primary-dark);
    box-shadow: 0 0 0 3px rgb(12 69 105 / 10%); /* CSS3: rgb con alpha */
}

/* Anchos máximos específicos (mantiene diseño original) */
input[name="name"],
input[name="lastname"] {
    max-width: 300px;
    flex: 1; /* CSS3: distribución flexible */
}

input[type="email"] {
    max-width: 250px;
}

input[type="tel"] {
    max-width: 150px;
}

select[name="subject"] {
    max-width: 290px;
}

/* Área de texto para mensajes */
textarea {
    min-height: 150px;
    resize: vertical;
    font-family: inherit;
}

/* ============================================================
   BOTONES Y ACCIONES - CSS3
   ============================================================ */
button {
    width: 100%;
    padding-block: 12px; /* CSS3 Logical Property */
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-transform: uppercase;
    font-weight: bold;
    font-family: inherit;
    
    /* CSS3: Transición optimizada */
    transition: background-color var(--transition-normal), transform var(--transition-fast);
    will-change: background-color;
}

/* Efectos hover y active */
button:hover {
    background-color: var(--color-primary-dark);
}

button:active {
    transform: translateY(1px); /* CSS3: feedback visual */
}

/* Botón deshabilitado */
button:disabled {
    background-color: var(--color-disabled);
    cursor: not-allowed;
    opacity: 0.6;
    transform: none;
}

/* CSS3: Focus visible */
button:focus-visible {
    outline: 3px solid var(--color-white);
    outline-offset: 2px;
}

/* ============================================================
   MENSAJES DE RESPUESTA - CSS3 ANIMATIONS
   ============================================================ */
.mensaje-respuesta {
    padding: 10px 15px;
    margin-block-end: 15px;
    border-radius: var(--radius-sm);
    display: none;
    font-weight: normal;
    text-align: start;
    font-size: 13px;
    line-height: 1.4;
    word-wrap: break-word;
    overflow-wrap: break-word;
    max-width: calc(100% - 100px);
    width: auto;
    white-space: normal;
    
    /* CSS3: Animación optimizada */
    animation: fadeIn var(--transition-normal) ease;
    transform: translateZ(0);
}

/* Mensaje de éxito */
.mensaje-respuesta.success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
    border-inline-start: 4px solid var(--color-success);
    display: block;
}

/* Mensaje de error */
.mensaje-respuesta.error {
    background-color: var(--color-error-bg);
    color: var(--color-error);
    border-inline-start: 4px solid var(--color-error);
    display: block;
}

/* CSS3: Animación de aparición */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px) translateZ(0);
    }
    to {
        opacity: 1;
        transform: translateY(0) translateZ(0);
    }
}

/* ============================================================
   reCAPTCHA - CSS3 CENTERED
   ============================================================ */
.recaptcha-container {
    display: grid; /* CSS3: grid para centrado perfecto */
    place-items: center;
    margin-block: 20px; /* CSS3 Logical Property */
}

/* Ajuste responsivo del reCAPTCHA */
.g-recaptcha {
    transform-origin: center;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
    text-align: center;
    color: var(--color-white);
    padding-block: 10px; /* CSS3 Logical Property */
    width: 100%;
}

.footer-content {
    text-align: center;
    margin-inline: auto; /* CSS3 Logical Property */
}

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

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

/* Contenedores estables */
.container,
.content,
main,
article {
    min-height: 1px;
    contain: layout; /* CSS3: aislamiento */
}

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

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

/* ============================================================
   MEDIA QUERIES CSS3 - RESPONSIVE OPTIMIZADO
   ============================================================ */

/* Tablets y pantallas medianas (≤ 767px) */
@media (max-width: 767px) {
    .menu-content {
        padding-block: 10px;
    }
    
    .menu ul {
        flex-wrap: nowrap;
        gap: clamp(15px, 4vw, 20px);
    }

    .menu a {
        font-size: var(--font-size-small);
        padding-block: 8px;
        padding-inline: 10px;
        white-space: nowrap;
    }

    .menu-logo {
        position: static;
    }

    .container {
        padding: 20px 15px;
        padding-inline-end: 70px;
        margin-block: 20px;
    }
    
    .logo-space {
        inset: 30px 15px auto auto;
    }
    
    /* Asegurar que el mensaje NO invade en tablet */
    .mensaje-respuesta {
        max-width: calc(100% - 85px);
        padding: 8px 12px;
        font-size: 12px;
        margin-block-end: 12px;
    }
}

/* Móviles pequeños (≤ 480px) */
@media (max-width: 480px) {
    .logo-space {
        inset: 20px 10px auto auto;
    }

    input,
    select,
    textarea {
        font-size: var(--font-size-small);
    }

    .menu-content {
        padding-block: 10px;
    }
    
    .menu a {
        padding-block: 5px;
        padding-inline: 8px;
        font-size: clamp(12px, 3vw, 13px);
    }
    
    /* Campos a ancho completo en móvil */
    input[name="name"],
    input[name="lastname"],
    input[type="email"],
    input[type="tel"],
    select[name="subject"] {
        max-width: 100%;
    }
    
    /* Nombre y apellidos en columna en móvil */
    .nombre-apellido {
        flex-direction: column;
    }
    
    .g-recaptcha {
        transform: scale(0.9);
    }
    
    /* Asegurar que el mensaje NO invade en móvil pequeño */
    .mensaje-respuesta {
        max-width: calc(100% - 75px);
        padding: 8px 10px;
        font-size: 12px;
        line-height: 1.3;
        margin-block-end: 10px;
    }
}

/* Pantallas muy pequeñas (≤ 320px) */
@media (max-width: 320px) {
    .container {
        padding: 15px 10px;
        padding-inline-end: 65px;
    }
    
    .g-recaptcha {
        transform: scale(0.8);
    }
    
    /* Asegurar que el mensaje NO invade en pantalla ultra pequeña */
    .mensaje-respuesta {
        max-width: calc(100% - 70px);
        padding: 7px 10px;
        font-size: 11px;
        line-height: 1.3;
        margin-block-end: 8px;
    }
}

/* ============================================================
   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;
    }
}

/* ============================================================
   CSS3: PRINT STYLES
   ============================================================ */
@media print {
    .menu,
    footer,
    .logo-space,
    .recaptcha-container,
    button {
        display: none;
    }

    body {
        color: black;
        background: white;
    }

    .container {
        box-shadow: none;
        max-width: 100%;
    }

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

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

/* ============================================================
   FOOTER LEGAL - AÑADIDO
   ============================================================ */

.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;
    }
}