/* ========================================
   CHINIELEC - Estilos Responsive
   ======================================== */

/* === TABLET (768px - 1024px) === */
@media screen and (max-width: 1024px) {
    :root {
        --spacing-xl: 4rem;
    }

    .header-contact {
        display: none;
    }

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

    .hero-content {
        order: 1;
    }

    .hero-image {
        order: 2;
        max-width: 500px;
        margin: 0 auto;
    }

    .hero-description {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

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

    .about-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .about-image {
        order: 1;
        max-width: 500px;
        margin: 0 auto;
    }

    .about-image::before {
        top: -15px;
        left: -15px;
        right: 15px;
        bottom: 15px;
    }

    .about-content {
        order: 2;
        text-align: center;
    }

    .about-features {
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }

    .contact-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .contact-map {
        min-height: 350px;
    }

    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
    }

    .footer-brand {
        grid-column: 1 / -1;
        max-width: 100%;
        text-align: center;
    }

    .footer-logo {
        justify-content: center;
    }

    .footer-social {
        justify-content: center;
    }
}

/* === MOBILE LARGE (481px - 767px) === */
@media screen and (max-width: 767px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }

    /* Header Mobile */
    .menu-toggle {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        padding: 100px var(--spacing-md) var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transition: right var(--transition-normal);
        z-index: 999;
    }

    .nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
    }

    .nav-link {
        font-size: 1.1rem;
        padding: var(--spacing-sm) 0;
        width: 100%;
        border-bottom: 1px solid var(--light-gray);
    }

    /* Menu toggle animation */
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    /* Overlay */
    .nav-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
        z-index: 998;
    }

    .nav-overlay.active {
        opacity: 1;
        visibility: visible;
    }

    /* Hero Mobile */
    .hero {
        min-height: auto;
        padding: 120px 0 var(--spacing-xl);
    }

    .hero-badge {
        font-size: 0.75rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
    }

    .hero-shape {
        display: none;
    }

    /* About Mobile */
    .about-features {
        grid-template-columns: 1fr;
    }

    .stats {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-sm);
    }

    .stat-number {
        font-size: 1.75rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

    /* Products Mobile */
    .products-grid {
        grid-template-columns: 1fr;
    }

    .product-image {
        height: 200px;
    }

    /* Sectors Mobile */
    .sectors-grid {
        grid-template-columns: 1fr;
    }

    .sector-card {
        padding: var(--spacing-md);
    }

    .sector-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    /* Contact Mobile */
    .contact-method {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .contact-map {
        min-height: 300px;
    }

    /* Footer Mobile */
    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-section h4::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .footer-links a:hover {
        padding-left: 0;
    }

    .footer-contact-item {
        justify-content: center;
    }

    /* WhatsApp Float Mobile */
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
    }

    .whatsapp-float a {
        width: 55px;
        height: 55px;
        font-size: 1.75rem;
    }

    .whatsapp-float::before {
        display: none;
    }
}

/* === MOBILE SMALL (hasta 480px) === */
@media screen and (max-width: 480px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2.5rem;
    }

    html {
        font-size: 14px;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .header-container {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .logo img {
        height: 40px;
    }

    .logo-text {
        font-size: 1.25rem;
    }

    .hero {
        padding: 100px 0 var(--spacing-lg);
    }

    .section {
        padding: var(--spacing-lg) 0;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }

    .product-content {
        padding: var(--spacing-sm);
    }

    .product-name {
        font-size: 1rem;
    }

    .stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .stat-item {
        padding: var(--spacing-sm);
        background: var(--white);
        border-radius: var(--radius-md);
    }

    .stat-number {
        font-size: 2rem;
    }

    .contact-method {
        padding: var(--spacing-sm);
    }

    .contact-method-icon {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }

    .footer {
        padding: var(--spacing-lg) 0 var(--spacing-sm);
    }

    .whatsapp-float a {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
}

/* === LANDSCAPE MOBILE === */
@media screen and (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 100px 0 var(--spacing-md);
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-description {
        font-size: 0.95rem;
        margin-bottom: var(--spacing-sm);
    }

    .hero-image {
        display: none;
    }
}

/* === PREFERENCIAS DEL SISTEMA === */

/* Reducir movimiento si el usuario lo prefiere */
@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;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* Modo oscuro del sistema (opcional, para futuro) */
/*
@media (prefers-color-scheme: dark) {
    :root {
        --white: #1a1a2e;
        --off-white: #16213e;
        --light-gray: #0f3460;
        --dark-gray: #e0e0e0;
        --black: #ffffff;
    }
}
*/

/* === PRINT STYLES === */
@media print {
    .header,
    .whatsapp-float,
    .footer-social,
    .hero-buttons,
    .btn {
        display: none !important;
    }

    .hero {
        min-height: auto;
        padding: var(--spacing-md);
        background: none;
        color: var(--black);
    }

    .hero-title {
        color: var(--black);
    }

    .section {
        padding: var(--spacing-md) 0;
        page-break-inside: avoid;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
    }

    a {
        text-decoration: underline;
    }

    a[href^="http"]:after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
    }
}