/* ===============================================
   Mr. Weyman (MWM) - Main Stylesheet
   Versión: 3.0.0 (Production Ready)
   ===============================================

   ÍNDICE:
   1.  Variables y Configuración Base
   2.  Reset y Fundamentos
   3.  Layout y Utilidades
   4.  Accesibilidad Global
   5.  Header y Navegación
   6.  Menú Móvil (Hamburguesa)
   7.  Botones
   8.  Secciones y Tarjetas
   9.  Formulario de Contacto
   10. Footer
   11. Elementos Flotantes (WhatsApp + Scroll-to-Top)
   12. Animaciones (JS-dependientes, seguras)
   13. Responsividad
   14. Preferencias de Movimiento Reducido
   15. Estilos de Impresión
   =============================================== */


/* ===============================================
   1. VARIABLES Y CONFIGURACIÓN BASE
   =============================================== */
:root {
    /* Paleta de Colores MWM */
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: rgba(79, 70, 229, 0.1);
    --secondary: #10b981;
    --accent: #f59e0b;
    --dark: #111827;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;
    --error: #ef4444;
    --success: #10b981;

    /* Gradientes */
    --gradient-main: linear-gradient(135deg, #4f46e5 0%, #8b5cf6 100%);
    --gradient-hover: linear-gradient(135deg, #4338ca 0%, #7c3aed 100%);

    /* 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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-primary: 0 4px 15px rgba(79, 70, 229, 0.3);
    --shadow-primary-lg: 0 8px 25px rgba(79, 70, 229, 0.5);

    /* Medidas y Estructura */
    --header-height: 80px;
    --header-height-scrolled: 70px;
    --container-width: 1200px;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-full: 50px;

    /* Transiciones */
    --transition-base: 0.3s ease;
    --transition-bounce: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    /* Foco accesible */
    --focus-ring: 3px solid #fbbf24;
    --focus-offset: 2px;

    /* Capas (Z-Index unificado) */
    --z-base: 1;
    --z-float: 900;
    --z-overlay: 999;
    --z-header: 1000;
    --z-menu: 1050;
    --z-toggle: 1100;
    --z-skip: 9999;
}


/* ===============================================
   2. RESET Y FUNDAMENTOS
   =============================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--dark);
    background-color: var(--gray-50);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scroll bloqueado cuando el menú está abierto */
body.no-scroll {
    overflow: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-base);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
}

/* Main con min-height para empujar el footer hacia abajo */
#main-content {
    min-height: calc(100vh - var(--header-height) - 200px);
    padding-top: var(--header-height);
}


/* ===============================================
   3. LAYOUT Y UTILIDADES
   =============================================== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.text-gradient {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mr-2 {
    margin-right: 0.5rem;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}


/* ===============================================
   4. ACCESIBILIDAD GLOBAL
   =============================================== */

/* Skip Link — visible solo al recibir foco */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    padding: 0.75rem 1.5rem;
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
    z-index: var(--z-skip);
    transition: top 0.2s ease;
    text-decoration: none;
    border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
    top: 0;
    outline: var(--focus-ring);
    outline-offset: var(--focus-offset);
}

/* Focus visible global — solo teclado, no clic */
:focus-visible {
    outline: var(--focus-ring);
    outline-offset: var(--focus-offset);
}

:focus:not(:focus-visible) {
    outline: none;
}


/* ===============================================
   5. HEADER Y NAVEGACIÓN
   =============================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: var(--z-header);
    transition: height var(--transition-base),
        background var(--transition-base),
        box-shadow var(--transition-base);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.header.scrolled {
    height: var(--header-height-scrolled);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--dark);
}

.logo-highlight {
    color: var(--primary);
}

/* Navegación Desktop */
.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--gray-500);
    position: relative;
    padding: 5px 0;
    transition: color var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-main);
    transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

/* Botón CTA del Navbar */
.nav-btn-primary {
    background: var(--primary);
    color: var(--white);
    padding: 0.5rem 1.2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: background var(--transition-base),
        transform var(--transition-base),
        box-shadow var(--transition-base);
}

.nav-btn-primary:hover {
    background: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

/* Sin subrayado animado en el botón CTA */
.nav-btn-primary::after {
    display: none;
}


/* ===============================================
   6. MENÚ MÓVIL (HAMBURGUESA)
   =============================================== */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    padding: 10px;
    z-index: var(--z-toggle);
    -webkit-tap-highlight-color: transparent;
}

.hamburger {
    width: 30px;
    height: 3px;
    background: var(--dark);
    position: relative;
    display: block;
    transition: background var(--transition-base);
    border-radius: 2px;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 30px;
    height: 3px;
    background: var(--dark);
    border-radius: 2px;
    transition: transform var(--transition-base), top var(--transition-base), bottom var(--transition-base);
    left: 0;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

/* Estado activo: X animada */
.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.nav-toggle.active .hamburger::after {
    transform: rotate(-45deg);
    bottom: 0;
}


/* ===============================================
   7. BOTONES
   =============================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    gap: 0.5rem;
    transition: transform var(--transition-base),
        box-shadow var(--transition-base),
        background var(--transition-base);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border: none;
    font-family: inherit;
    font-size: inherit;
    line-height: 1.5;
}

/* Primario */
a.btn-primary,
button.btn-primary,
input.btn-primary {
    background: var(--gradient-main);
    color: var(--white);
    box-shadow: var(--shadow-primary);
}

a.btn-primary:hover,
button.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-primary-lg);
}

/* WhatsApp */
a.btn-whatsapp,
button.btn-whatsapp {
    background: #25D366;
    color: var(--white);
}

a.btn-whatsapp:hover,
button.btn-whatsapp:hover {
    background: #128c7e;
    transform: translateY(-2px);
}

/* Estado deshabilitado genérico */
.btn:disabled,
button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}


/* ===============================================
   8. SECCIONES Y TARJETAS
   =============================================== */
.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-subtitle {
    color: var(--gray-500);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Grids de contenido */
.services-grid,
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

/* Tarjetas */
.service-card,
.portfolio-item {
    background: var(--white);
    border-radius: var(--radius);
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.03);
    transition: transform var(--transition-bounce),
        box-shadow var(--transition-bounce),
        border-color var(--transition-bounce);
    position: relative;
    overflow: hidden;
}

.service-card:hover,
.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

/* Línea superior animada en tarjetas */
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-main);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

/* Icono de servicio */
.service-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    transition: background var(--transition-base),
        color var(--transition-base),
        transform var(--transition-base);
}

.service-card:hover .service-icon {
    background: var(--gradient-main);
    color: var(--white);
    transform: rotate(3deg);
}

.service-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.service-description {
    color: var(--gray-500);
    margin-bottom: 1.5rem;
}


/* ===============================================
   9. FORMULARIO DE CONTACTO
   =============================================== */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    background: var(--white);
    padding: 3rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

.form-control {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-base),
        background var(--transition-base),
        box-shadow var(--transition-base);
    background: var(--gray-50);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px var(--primary-light);
}

/* Estado de error en campos */
.form-control[aria-invalid="true"] {
    border-color: var(--error);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

/* Animación de error (shake) */
@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    20%,
    60% {
        transform: translateX(-6px);
    }

    40%,
    80% {
        transform: translateX(6px);
    }
}

.shake {
    animation: shake 0.4s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}


/* ===============================================
   10. FOOTER
   =============================================== */
.footer {
    background: var(--dark);
    color: var(--gray-400);
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.footer-logo {
    margin-bottom: 1rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
}

.footer-title {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.footer-description {
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-link {
    transition: color var(--transition-base),
        padding-left var(--transition-base);
}

.footer-link:hover {
    color: var(--primary);
    padding-left: 5px;
}

/* Redes sociales */
.footer-social {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: background var(--transition-base),
        color var(--transition-base),
        transform var(--transition-base);
}

.social-link:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}

/* Línea inferior del footer */
.footer-bottom {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.copyright {
    font-size: 0.9rem;
}


/* ===============================================
   11. ELEMENTOS FLOTANTES
   =============================================== */

/* WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #25d366;
    color: var(--white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    z-index: var(--z-float);
    transition: transform var(--transition-base),
        background var(--transition-base),
        box-shadow var(--transition-base);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background: #128c7e;
    box-shadow: 0 6px 16px rgba(37, 211, 102, 0.5);
}

/* Scroll-to-Top (creado dinámicamente por JS) */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: var(--shadow-primary);
    z-index: var(--z-float);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--transition-base),
        visibility var(--transition-base),
        transform var(--transition-base),
        background var(--transition-base);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-primary-lg);
}

.scroll-to-top:focus-visible {
    outline: var(--focus-ring);
    outline-offset: var(--focus-offset);
}


/* ===============================================
   12. ANIMACIONES (JS-dependientes, seguras)
   ===============================================
   IMPORTANTE: La clase .js-scroll-animate se añade
   SOLO vía JavaScript. Si JS falla, el contenido
   permanece visible (sin opacity: 0 en HTML).
   =============================================== */

/* Estado inicial: oculto y desplazado */
.js-scroll-animate {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Estado final: visible y en posición */
.js-scroll-animate.animate {
    opacity: 1;
    transform: translateY(0);
}

/* Efecto cascada escalonado en grids */
.js-scroll-animate:nth-child(2) {
    transition-delay: 0.1s;
}

.js-scroll-animate:nth-child(3) {
    transition-delay: 0.2s;
}

.js-scroll-animate:nth-child(4) {
    transition-delay: 0.3s;
}

.js-scroll-animate:nth-child(5) {
    transition-delay: 0.3s;
}

.js-scroll-animate:nth-child(6) {
    transition-delay: 0.4s;
}

/* Fallback: elementos sin .js-scroll-animate que tengan .animate
   (compatibilidad con posibles usos directos en HTML) */
.animate:not(.js-scroll-animate) {
    animation: fadeInUp 0.8s ease-out forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* ===============================================
   13. RESPONSIVIDAD
   =============================================== */

/* Tablets y pantallas medianas */
@media (max-width: 992px) {
    .contact-container {
        grid-template-columns: 1fr;
        padding: 2rem;
        gap: 2rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .services-grid,
    .portfolio-grid {
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        gap: 2rem;
    }
}

/* Móviles */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .navigation {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        height: 100dvh;
        /* Dynamic viewport height para móviles modernos */
        background: var(--white);
        padding: 100px 24px 24px;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: right var(--transition-smooth);
        z-index: var(--z-menu);
        overflow-y: auto;
    }

    .navigation.active {
        right: 0;
    }

    .nav-links {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

    .nav-link {
        font-size: 1.1rem;
        width: 100%;
        display: block;
        padding: 0.5rem 0;
    }

    .nav-btn-primary {
        text-align: center;
        display: block;
        width: 100%;
        padding: 0.75rem 1.2rem;
    }

    /* Overlay oscuro con interacción */
    body.menu-open::before {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: var(--z-overlay);
        backdrop-filter: blur(2px);
        -webkit-backdrop-filter: blur(2px);
        cursor: pointer;
    }

    .section {
        padding: 3.5rem 0;
    }

    .section-header {
        margin-bottom: 2.5rem;
    }

    .hero {
        padding-top: 100px;
    }

    /* Flotantes reposicionados para no solaparse */
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 54px;
        height: 54px;
    }

    .scroll-to-top {
        bottom: 20px;
        left: 20px;
        width: 44px;
        height: 44px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-container {
        padding: 1.5rem;
    }
}

/* Pantallas muy pequeñas */
@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .service-card,
    .portfolio-item {
        padding: 1.75rem;
    }

    .services-grid,
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}


/* ===============================================
   14. PREFERENCIAS DE MOVIMIENTO REDUCIDO
   =============================================== */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .js-scroll-animate {
        opacity: 1;
        transform: none;
    }

    .service-card:hover,
    .portfolio-item:hover {
        transform: none;
    }

    .scroll-to-top.visible {
        transform: none;
    }

    .whatsapp-float:hover {
        transform: none;
    }
}


/* ===============================================
   15. ESTILOS DE IMPRESIÓN
   =============================================== */
@media print {

    /* Ocultar elementos no imprimibles */
    .header,
    .nav-toggle,
    .whatsapp-float,
    .scroll-to-top,
    .footer-social,
    .skip-link {
        display: none !important;
    }

    /* Resetear layout para impresión */
    body {
        background: white;
        color: black;
        font-size: 12pt;
    }

    #main-content {
        padding-top: 0;
        min-height: auto;
    }

    .footer {
        background: white;
        color: black;
        border-top: 1px solid #ccc;
    }

    /* Mostrar URLs de enlaces */
    a[href^="http"]::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666;
    }

    /* Evitar cortes dentro de tarjetas */
    .service-card,
    .portfolio-item {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }

    /* Todas las animaciones visibles */
    .js-scroll-animate {
        opacity: 1 !important;
        transform: none !important;
    }
}