:root {
    --color-primary: #B6FF00;
    --color-primary-dark: #8BC200;
    --color-secondary: #000000;
    --color-accent: #B6FF00;
    --color-neutral: #0a0a0a;
    --color-card-bg: #111111;
    --color-card-hover: #1a1a1a;
    --text-dark: #ffffff;
    --text-muted: #b0b0b0;
    --text-light: #ffffff;
    --max-width: 1200px;
    --border-radius: 16px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { 
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    scroll-padding-top: 100px;
}

body {
    margin: 0;
    font-family: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--color-neutral);
    color: var(--text-dark);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Skip link */
.skip-link {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.skip-link:focus {
    left: 10px;
    top: 10px;
    width: auto;
    height: auto;
    padding: 12px 20px;
    background: var(--color-primary);
    color: #000;
    border-radius: 8px;
    z-index: 9999;
    font-weight: 700;
}

/* Header / Nav */
.site-header {
    background: rgba(0, 0, 0, 0.95);
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    z-index: 60;
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(182, 255, 0, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.nav-container { 
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 16px 24px;
    position: relative;
}

.nav__brand img { 
    height: 48px;
    width: auto;
    display: block;
    -webkit-filter: drop-shadow(0 2px 8px rgba(182, 255, 0, 0.3));
    filter: drop-shadow(0 2px 8px rgba(182, 255, 0, 0.3));
    transition: var(--transition);
}

.nav__brand img:hover {
    -webkit-filter: drop-shadow(0 4px 12px rgba(182, 255, 0, 0.5));
    filter: drop-shadow(0 4px 12px rgba(182, 255, 0, 0.5));
}

.nav__links { 
    margin-left: auto;
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav__links a { 
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    padding: 10px 18px;
    border-radius: 8px;
    transition: var(--transition);
    letter-spacing: 0.02em;
    position: relative;
}

.nav__links a::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 18px;
    right: 18px;
    height: 2px;
    background: var(--color-primary);
    -webkit-transform: scaleX(0);
    -ms-transform: scaleX(0);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav__links a:hover {
    color: var(--color-primary);
    background: rgba(182, 255, 0, 0.05);
}

.nav__links a:hover::after {
    -webkit-transform: scaleX(1);
    -ms-transform: scaleX(1);
    transform: scaleX(1);
}

.nav-toggle { 
    display: none;
    background: none;
    border: 0;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin-left: auto;
}

.hamburger { 
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    position: relative;
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after { 
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

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

/* Typography */
h1, h2, h3 {
    margin-top: 0;
    color: var(--text-dark);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 16px;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), transparent);
    border-radius: 2px;
}

p {
    margin: 0 0 1rem;
    color: var(--text-muted);
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0.85)),
        url('assets/FOTOS/FOTO3.jpeg') center/cover no-repeat;
    color: var(--text-light);
    padding: 8rem 1.5rem 5rem;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(182, 255, 0, 0.05) 0%, transparent 70%);
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.8) 100%);
}

.hero__content {
    position: relative;
    max-width: 700px;
    z-index: 1;
}

.hero__logo {
    width: clamp(280px, 50vw, 560px);
    height: auto;
    display: block;
    margin: 0 auto 1.5rem;
    -webkit-filter: drop-shadow(0 8px 24px rgba(182, 255, 0, 0.4));
    filter: drop-shadow(0 8px 24px rgba(182, 255, 0, 0.4));
    -webkit-animation: float 3s ease-in-out infinite;
    animation: float 3s ease-in-out infinite;
}

@-webkit-keyframes float {
    0%, 100% { -webkit-transform: translateY(0); transform: translateY(0); }
    50% { -webkit-transform: translateY(-10px); transform: translateY(-10px); }
}

@keyframes float {
    0%, 100% { -webkit-transform: translateY(0); transform: translateY(0); }
    50% { -webkit-transform: translateY(-10px); transform: translateY(-10px); }
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #fff, var(--color-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
    letter-spacing: 0.02em;
}

/* Main Content */
main {
    padding: 5rem 1.5rem;
    background: var(--color-neutral);
}

.content-block {
    max-width: var(--max-width);
    margin: 0 auto 6rem;
    background: linear-gradient(135deg, var(--color-card-bg), rgba(26, 26, 26, 0.8));
    border-radius: var(--border-radius);
    padding: 3.5rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(182, 255, 0, 0.08);
    position: relative;
    overflow: hidden;
}

.content-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), transparent);
}

.intro {
    font-size: clamp(1rem, 2vw, 1.1rem);
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

/* Grid & Cards */
.grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.9), rgba(15, 15, 15, 0.95));
    border-radius: 12px;
    padding: 2rem;
    border: 1px solid rgba(182, 255, 0, 0.1);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    -webkit-transform: scaleX(0);
    -ms-transform: scaleX(0);
    transform: scaleX(0);
    transition: var(--transition);
}

.card:hover {
    -webkit-transform: translateY(-8px);
    -ms-transform: translateY(-8px);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(182, 255, 0, 0.15);
    border-color: rgba(182, 255, 0, 0.3);
}

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

.card h3 {
    margin-bottom: 1.25rem;
    font-size: clamp(1.2rem, 2.5vw, 1.4rem);
    color: var(--color-primary);
    font-weight: 700;
}

.card li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-muted);
}

.card li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.card strong {
    color: var(--text-dark);
    font-weight: 600;
}

.card a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.card a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* Security Cards */
.security__grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    margin-bottom: 3rem;
}

.security-card {
    border-top: 3px solid transparent;
}

.security-card__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.security-card__header h3 {
    margin: 0;
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
}

.security-card__badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.security-card--basico {
    border-top-color: #4fc3f7;
}

.security-card--basico .security-card__badge {
    background: rgba(79, 195, 247, 0.2);
    color: #4fc3f7;
}

.security-card--intermedio {
    border-top-color: var(--color-primary);
}

.security-card--intermedio .security-card__badge {
    background: rgba(182, 255, 0, 0.2);
    color: var(--color-primary);
}

.security-card--avanzado {
    border-top-color: #ff6b6b;
}

.security-card--avanzado .security-card__badge {
    background: rgba(255, 107, 107, 0.2);
    color: #ff6b6b;
}

/* Policy */
.policy {
    background: linear-gradient(135deg, rgba(182, 255, 0, 0.03), rgba(182, 255, 0, 0.01));
    border-left: 4px solid var(--color-primary);
    padding: 2rem 2rem 2rem 2.5rem;
    margin-bottom: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(182, 255, 0, 0.15);
}

.policy h3 {
    margin-bottom: 1rem;
    color: var(--color-primary);
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
}

.policy p {
    color: var(--text-muted);
    line-height: 1.7;
}

.policy a {
    color: var(--color-primary);
    font-weight: 600;
    transition: var(--transition);
}

.policy a:hover {
    color: var(--color-primary-dark);
}

/* FAQ */
.faq details {
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.9), rgba(15, 15, 15, 0.95));
    border: 1px solid rgba(182, 255, 0, 0.1);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    margin-bottom: 1.25rem;
    transition: var(--transition);
}

.faq summary {
    font-weight: 600;
    cursor: pointer;
    color: var(--text-dark);
    font-size: clamp(1rem, 2vw, 1.1rem);
    transition: var(--transition);
    list-style: none;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.faq summary::-webkit-details-marker {
    display: none;
}

.faq summary::before {
    content: '+';
    color: var(--color-primary);
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1;
    transition: var(--transition);
    flex-shrink: 0;
}

.faq details[open] summary::before {
    content: '−';
}

.faq details[open] {
    border-color: var(--color-primary);
    box-shadow: 0 12px 30px rgba(182, 255, 0, 0.15);
}

.faq summary:hover {
    color: var(--color-primary);
}

.faq p {
    margin-top: 1rem;
    padding-left: 2.8rem;
    color: var(--text-muted);
    line-height: 1.7;
}

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

/* Social Links */
.social-links {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.social-links a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.social-links a:hover { 
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* Social icons sizing */
.social-links img {
    width: 48px;
    height: 48px;
    object-fit: cover;
    display: block;
    border-radius: 6px;
}

.social-links .social-label {
    line-height: 1;
}

/* Gallery */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-top: 2rem;
}

.gallery img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
}

.gallery img:hover {
    -webkit-transform: scale(1.05);
    -ms-transform: scale(1.05);
    transform: scale(1.05);
    border-color: var(--color-primary);
    box-shadow: 0 12px 32px rgba(182, 255, 0, 0.3);
}

.media-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 2rem;
}

.media-row__video { 
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
    border: 2px solid rgba(182, 255, 0, 0.1);
}

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    padding: 20px;
}

.lightbox[aria-hidden="false"] { 
    display: flex;
}

.lightbox__content { 
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox__img { 
    max-width: 100%;
    max-height: 85vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.9);
    border: 2px solid rgba(182, 255, 0, 0.3);
}

.lightbox__close { 
    position: absolute;
    top: -50px;
    right: -50px;
    background: var(--color-primary);
    border: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 24px;
    color: #000;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 700;
}

.lightbox__close:hover {
    -webkit-transform: rotate(90deg);
    -ms-transform: rotate(90deg);
    transform: rotate(90deg);
    background: var(--color-primary-dark);
}

.lightbox__nav { 
    display: flex;
    gap: 12px;
    position: absolute;
    left: 50%;
    -webkit-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    transform: translateX(-50%);
    bottom: -60px;
}

.lightbox__nav button { 
    background: var(--color-primary);
    border: 0;
    padding: 12px 20px;
    border-radius: 8px;
    font-weight: 700;
    color: #000;
    cursor: pointer;
    transition: var(--transition);
}

.lightbox__nav button:hover {
    background: var(--color-primary-dark);
    -webkit-transform: translateY(-2px);
    -ms-transform: translateY(-2px);
    transform: translateY(-2px);
}

/* Footer */
footer {
    background: #000000;
    color: var(--text-light);
    padding: 3.5rem 1.5rem 2rem;
    text-align: center;
    border-top: 1px solid rgba(182, 255, 0, 0.2);
}

.footer__info,
.footer__contact {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    color: var(--text-muted);
}

footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

footer a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

footer small {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

/* Tablets */
@media (max-width: 1024px) {
    html {
        scroll-padding-top: 100px;
    }

    .nav__links {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.98);
        flex-direction: column;
        padding: 2rem;
        gap: 0;
        border-top: 1px solid rgba(182, 255, 0, 0.2);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
        -webkit-transform: translateY(-100%);
        -ms-transform: translateY(-100%);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 50;
    }

    .nav__links.open {
        -webkit-transform: translateY(0);
        -ms-transform: translateY(0);
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav__links a {
        width: 100%;
        text-align: center;
        padding: 1rem;
        font-size: 1.1rem;
        border-bottom: 1px solid rgba(182, 255, 0, 0.1);
    }

    .nav__links a::after {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .content-block {
        padding: 2.5rem 2rem;
    }

    main {
        padding: 4rem 1.5rem;
    }

    .grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }

    .security__grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

/* Mobile Devices */
@media (max-width: 768px) {
    .hero {
        min-height: 70vh;
        padding: 6rem 1.25rem 4rem;
    }

    .hero h1 {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .nav-container {
        padding: 12px 20px;
    }

    .nav__brand img {
        height: 40px;
    }

    .content-block {
        padding: 2rem 1.5rem;
        margin-bottom: 4rem;
    }

    main {
        padding: 3rem 1rem;
    }

    h2 {
        font-size: clamp(1.6rem, 5vw, 2.2rem);
    }

    h2::after {
        width: 40px;
        height: 3px;
    }

    .grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .security__grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .card {
        padding: 1.5rem;
    }

    .policy {
        padding: 1.5rem 1.5rem 1.5rem 2rem;
    }

    .faq details {
        padding: 1.25rem 1.5rem;
    }

    .faq p {
        padding-left: 0;
        margin-top: 1rem;
    }

    .gallery {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 12px;
    }

    .gallery img {
        height: 160px;
    }

    .media-row {
        grid-template-columns: 1fr;
    }

    .lightbox {
        padding: 10px;
    }

    .lightbox__content {
        max-width: 95vw;
        max-height: 85vh;
    }

    .lightbox__img {
        max-height: 75vh;
    }

    .lightbox__close {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 20px;
    }

    .lightbox__nav {
        bottom: 10px;
        gap: 8px;
    }

    .lightbox__nav button {
        padding: 10px 16px;
        font-size: 14px;
    }

    footer {
        padding: 2.5rem 1.5rem 1.5rem;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .hero {
        padding: 5rem 1rem 3rem;
        min-height: 60vh;
    }

    .nav__brand img {
        height: 36px;
    }

    .content-block {
        padding: 1.5rem 1.25rem;
        border-radius: 12px;
    }

    .card {
        padding: 1.25rem;
    }

    .gallery {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 10px;
    }

    .gallery img {
        height: 140px;
    }

    .security-card__header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
}

/* Landscape Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: 100vh;
        padding: 4rem 1rem 2rem;
    }

    .hero__logo {
        width: clamp(200px, 30vw, 300px);
        margin-bottom: 1rem;
    }

    .hero h1 {
        font-size: clamp(1.8rem, 5vw, 2.5rem);
    }

    .hero p {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
}

/* High Resolution Screens */
@media (min-width: 1600px) {
    body {
        font-size: 18px;
    }

    .content-block {
        padding: 4rem;
    }

    .gallery img {
        height: 260px;
    }
}

/* Accessibility & Motion */
@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;
    }

    .hero__logo {
        -webkit-animation: none !important;
        animation: none !important;
    }
}

/* Print Styles */
@media print {
    .site-header,
    .nav-toggle,
    .lightbox,
    footer {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .content-block {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: light) {
    /* Users can override if they prefer light mode elsewhere */
}

/* Browser-Specific Fixes */

/* Safari */
@supports (-webkit-appearance: none) {
    .nav__links a::after {
        will-change: transform;
    }
}

/* Firefox */
@-moz-document url-prefix() {
    .card {
        background: rgba(26, 26, 26, 0.9);
    }
}

/* Edge & IE11 Fallbacks */
@supports not (backdrop-filter: blur(12px)) {
    .site-header {
        background: rgba(0, 0, 0, 1);
    }
    
    .lightbox {
        background: rgba(0, 0, 0, 0.98);
    }
}