:root {
    --color-primary: #2a7de1;
    --color-primary-dark: #1e5daa;
    --color-secondary: #4ecdc4;
    --color-blue: #2a7de1;
    --color-green: #4ecdc4;
    --color-purple: #8075ff;
    --color-orange: #ff8a65;
    --color-light: #f8f9fa;
    --color-gray: #6c757d;
    --color-dark: #212529;
    --color-white: #ffffff;
    --color-black: #000000;
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    --radius: 10px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
}

.section-header h2 {
    font-size: 36px;
    margin-bottom: 15px;
    color: var(--color-dark);
    font-weight: 700;
}

.section-header p {
    font-size: 18px;
    color: var(--color-gray);
}

.text-center {
    text-align: center;
}

.bg-light {
    background-color: var(--color-light);
}

.bg-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* Botones */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border: 2px solid var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: var(--color-white);
    border: 2px solid var(--color-secondary);
}

.btn-secondary:hover {
    background-color: var(--color-secondary);
    opacity: 0.9;
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-light {
    background-color: var(--color-white);
    color: var(--color-primary);
    border: 2px solid var(--color-white);
}

.btn-light:hover {
    opacity: 0.9;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

/* Header y Navegación */
header {
    background-color: var(--color-white);
    box-shadow: var(--shadow);
    padding: 0 0 20px;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    width: 180px;
    max-width: 100%;
    height: auto;
}

.nav-menu {
    display: flex;
}

.nav-menu li {
    margin: 0 15px;
}

.nav-menu a {
    color: var(--color-dark);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

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

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-dark);
    margin-bottom: 5px;
    border-radius: 3px;
    transition: var(--transition);
}

/* Hero Section */
.hero-section {
    background-color: var(--color-white);
    box-shadow: var(--shadow);
}

.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 40px 0;
}

.hero-content {
    flex: 1;
    padding-right: 40px;
}

.hero-content h1 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--color-dark);
}

.hero-content p {
    font-size: 18px;
    color: var(--color-gray);
    margin-bottom: 30px;
}

.hero-buttons .btn {
    margin-right: 15px;
    margin-bottom: 15px;
}

.hero-image {
    flex: 1;
}

/* About Section */
.about-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.about-text {
    flex: 1;
    padding-right: 40px;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 16px;
}

.about-image {
    flex: 1;
}

/* Cards Section */
.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.card {
    background-color: var(--color-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    height: 100%;
}

.card:hover {
    transform: translateY(-10px);
}

.card-icon {
    font-size: 40px;
    margin-bottom: 20px;
    text-align: center;
}

.card-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
}

.card-subtitle {
    font-size: 16px;
    color: var(--color-gray);
    margin-bottom: 20px;
}

.card-image {
    margin-top: 20px;
    text-align: center;
}

.card-blue {
    border-top: 4px solid var(--color-blue);
}

.card-green {
    border-top: 4px solid var(--color-green);
}

.card-purple {
    border-top: 4px solid var(--color-purple);
}

.card-orange {
    border-top: 4px solid var(--color-orange);
}

/* Events Section */
.events-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 40px;
}

.event {
    display: flex;
    background-color: var(--color-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.event-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 20px;
    min-width: 100px;
}

.event-date .day {
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
}

.event-date .month {
    font-size: 16px;
}

.event-details {
    padding: 20px;
    flex: 1;
}

.event-details h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.event-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--color-gray);
}

.event-details p {
    margin-bottom: 15px;
}

/* Join Us Section
   Grid con áreas: en escritorio el texto y el botón van a la izquierda y el logo
   ocupa la columna derecha; en móvil el orden pasa a texto → logo → botón. */
.join-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
        "text logo"
        "cta  logo";
    align-items: center;
    column-gap: 40px;
}

.join-text {
    grid-area: text;
    padding-right: 40px;
}

.join-cta {
    grid-area: cta;
}

.join-text h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--color-white);
}

.join-text p {
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.9);
}

.join-image {
    grid-area: logo;
}

/* Logo en blanco directamente sobre el fondo azul (sustituye al emoji).
   Mismo truco que en el footer: solo funciona con el PNG transparente. */
.join-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 240px;
}

.join-logo img {
    display: block;
    width: 100%;
    max-width: 380px;
    height: auto;
    filter: brightness(0) invert(1);
}

/* News Section */
.news-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.news-item {
    background-color: var(--color-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-item:hover {
    transform: translateY(-5px);
}

.news-content {
    padding: 20px;
}

.news-date {
    font-size: 14px;
    color: var(--color-gray);
    margin-bottom: 10px;
}

.news-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.news-content p {
    margin-bottom: 15px;
    font-size: 15px;
}

.read-more {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 14px;
    display: inline-block;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--color-primary-dark);
}

/* Sponsors Section */
.sponsors-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 40px;
}

.sponsor {
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transition);
}

.sponsor:hover {
    filter: grayscale(0);
    opacity: 1;
}

/* Footer */
footer {
    background-color: var(--color-dark);
    color: var(--color-light);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.footer-logo img {
    /* OJO: brightness(0) invert(1) solo vale con PNG transparente.
       Con el JPG antiguo (fondo blanco opaco) salía un cuadrado blanco. */
    width: 200px;
    max-width: 100%;
    height: auto;
    filter: brightness(0) invert(1);
}

.footer-col p {
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.7);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--color-primary);
}

.footer-col h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--color-white);
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--color-primary);
    padding-left: 5px;
}

.contact-info li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
}

.contact-info li i {
    margin-right: 10px;
    color: var(--color-primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-primary);
}

/* Placeholders de imagen (aún sin fotos reales) */
.media-ph {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    font-size: 56px;
    min-height: 240px;
    width: 100%;
}

.news-image .media-ph {
    min-height: 180px;
    font-size: 44px;
}

/* Sponsors como chips de texto (aún sin logos) */
.sponsor-name {
    font-weight: 600;
    font-size: 16px;
    color: var(--color-gray);
    padding: 14px 22px;
    border: 1px solid #e3e6ea;
    border-radius: var(--radius);
    background-color: var(--color-white);
    transition: var(--transition);
}

.sponsor-name:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

/* Texto introductorio */
.lead-text {
    max-width: 760px;
    margin: 0 auto 30px;
    text-align: center;
    font-size: 17px;
    color: var(--color-gray);
}

.about-buttons .btn {
    margin-right: 12px;
    margin-bottom: 12px;
}

/* Fines */
.aims {
    margin-top: 50px;
}

.aims h3 {
    text-align: center;
    font-size: 24px;
    margin-bottom: 26px;
}

.aims-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
    max-width: 900px;
    margin: 0 auto;
}

.aims-list li {
    background-color: var(--color-white);
    border-left: 4px solid var(--color-primary);
    border-radius: 8px;
    padding: 16px 20px;
    box-shadow: var(--shadow);
    font-size: 15px;
}

/* Junta Directiva */
.board-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 22px;
    margin: 0 auto 36px;
    max-width: 860px;
}

.board-card {
    background-color: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 26px 22px;
    text-align: center;
}

.board-card.lead {
    border-top: 4px solid var(--color-primary);
}

.board-card .role {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 6px;
}

.board-card .name {
    font-weight: 600;
    font-size: 17px;
}

/* Logotipo LinkedIn */
.li-logo {
    fill: #0a66c2;
    flex-shrink: 0;
}

.board-card .li-logo {
    width: 26px;
    height: 26px;
    margin-top: 14px;
}

.board-link {
    cursor: pointer;
}

.board-link:hover {
    transform: translateY(-6px);
}

.board-link:hover .li-logo {
    fill: #004182;
}

.board-vocales li a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.board-vocales li a .li-logo {
    width: 15px;
    height: 15px;
}

.board-vocales li a:hover {
    color: #0a66c2;
}

.board-vocales {
    text-align: center;
}

.board-vocales h3 {
    font-size: 20px;
    margin-bottom: 18px;
}

.board-vocales ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.board-vocales li {
    background-color: var(--color-white);
    border: 1px solid #e3e6ea;
    border-radius: 50px;
    padding: 8px 18px;
    font-size: 14px;
    font-weight: 500;
}

/* Lista de congresos */
.congress-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.congress-item {
    display: flex;
    align-items: center;
    gap: 22px;
    background-color: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 22px 26px;
    flex-wrap: wrap;
    transition: var(--transition);
}

.congress-item:hover {
    transform: translateY(-4px);
}

.congress-item .c-num {
    font-size: 26px;
    font-weight: 700;
    color: var(--color-primary);
    min-width: 64px;
    text-align: center;
}

.congress-item .c-body {
    flex: 1;
    min-width: 220px;
}

.congress-item .c-body h3 {
    font-size: 18px;
    margin-bottom: 6px;
}

.congress-item .c-meta {
    color: var(--color-gray);
    font-size: 14px;
}

/* Enlaces de interés */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.link-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background-color: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px 22px;
    transition: var(--transition);
}

.link-card:hover {
    transform: translateY(-4px);
}

.link-card .l-icon {
    font-size: 26px;
}

.link-card .l-text strong {
    display: block;
    font-size: 16px;
}

.link-card .l-text span {
    font-size: 13px;
    color: var(--color-gray);
}

/* Cuota de socio */
.fee-box {
    display: flex;
    align-items: center;
    gap: 30px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white);
    border-radius: var(--radius);
    padding: 36px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.fee-amount {
    font-size: 52px;
    font-weight: 700;
    line-height: 1;
    white-space: nowrap;
}

.fee-amount span {
    font-size: 18px;
    font-weight: 500;
    opacity: 0.85;
}

.fee-text {
    flex: 1;
    min-width: 260px;
}

.fee-text p {
    margin-bottom: 18px;
}

.fee-text .btn-outline {
    color: var(--color-white);
    border-color: var(--color-white);
}

.fee-text .btn-outline:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
}

/* Páginas legales */
.legal-content {
    max-width: 820px;
}

.legal-content h2 {
    font-size: 22px;
    margin: 32px 0 12px;
    color: var(--color-dark);
}

.legal-content p {
    margin-bottom: 16px;
    color: #444;
}

.legal-list {
    margin: 0 0 16px 0;
}

.legal-list li {
    position: relative;
    padding-left: 22px;
    margin-bottom: 10px;
    color: #444;
}

.legal-list li::before {
    content: '•';
    position: absolute;
    left: 6px;
    color: var(--color-primary);
    font-weight: 700;
}

.legal-content a {
    color: var(--color-primary);
    font-weight: 500;
}

.legal-note {
    margin-top: 36px;
    padding-top: 20px;
    border-top: 1px solid #e3e6ea;
    font-size: 15px;
    color: var(--color-gray);
}

/* Banner de páginas internas */
.page-banner {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white);
    text-align: center;
    padding: 70px 0;
}

.page-banner h1 {
    font-size: 38px;
    font-weight: 700;
    margin-bottom: 12px;
}

.page-banner p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto;
    color: rgba(255, 255, 255, 0.9);
}

/* Contacto (home) */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
}

.contact-card {
    background-color: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 30px;
    text-align: center;
}

.contact-card .contact-icon {
    font-size: 36px;
    margin-bottom: 14px;
}

.contact-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.contact-card a {
    color: var(--color-primary);
    font-weight: 600;
}

/* Aviso "en preparación" */
.placeholder-note {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
    padding: 40px 30px;
    border: 2px dashed #d7dbe0;
    border-radius: var(--radius);
    color: var(--color-gray);
    background-color: var(--color-white);
}

.placeholder-note .note-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

/* Responsive Styles */
@media (max-width: 992px) {
    /* En columna, align-items:center encoge los hijos a su contenido y
       aplasta las cajas .media-ph (width:100%) → forzar stretch. */
    .hero,
    .about-content,
    .join-content {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-image,
    .about-image,
    .join-image {
        width: 100%;
    }

    .hero-content {
        padding-right: 0;
        margin-bottom: 40px;
        text-align: center;
    }

    .about-text,
    .join-text {
        padding-right: 0;
        margin-bottom: 40px;
        text-align: center;
    }

    /* .join-content es grid: una sola columna y orden texto → logo → botón */
    .join-content {
        grid-template-columns: 1fr;
        grid-template-areas:
            "text"
            "logo"
            "cta";
        justify-items: center;
        text-align: center;
    }

    .join-text {
        margin-bottom: 20px;
    }

    .join-logo {
        min-height: 0;
        margin-bottom: 30px;
    }

    .join-logo img {
        max-width: 240px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background-color: var(--color-white);
        width: 100%;
        box-shadow: var(--shadow);
        padding: 20px 0;
        transition: var(--transition);
        z-index: 100;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 10px 0;
    }

    .menu-toggle {
        display: flex;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .section-header h2 {
        font-size: 28px;
    }

    .hero-content h1 {
        font-size: 32px;
    }

    .event {
        flex-direction: column;
    }

    .event-date {
        width: 100%;
        padding: 15px;
    }
}
/* ---- Footer en móvil: logo/descripción centrados, enlaces+recursos en 2 columnas,
       contacto centrado a ancho completo ---- */
@media (max-width: 640px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 30px 20px;
    }

    /* 1.ª columna (logo, texto, redes) y última (contacto): ancho completo y centradas */
    .footer-content .footer-col:first-child,
    .footer-content .footer-col:last-child {
        grid-column: 1 / -1;
        text-align: center;
    }

    .footer-content .footer-col:first-child .footer-logo,
    .footer-content .footer-col:first-child .social-links {
        justify-content: center;
    }

    .footer-content .footer-col:last-child .contact-info li {
        justify-content: center;
        text-align: center;
    }
}