/* ==========================================================================
   CSS Variables & Theme Setup
   ========================================================================== */
:root {
    /* Paleta Oficial ALDO DEEJAY */
    --bg-principal: #0D0D11;      /* Negro profundo nocturno */
    --bg-card: #1A1A22;           /* Gris oscuro elevado para contenedores */
    --texto-principal: #FFFFFF;    /* Blanco puro para máxima legibilidad en textos */
    --plata-premium: #E2E8F0;      /* Plata claro y luminoso para detalles, iconos y bordes metálicos */
    --color-acento: #8B5CF6;       /* Violeta Neón para botones, enlaces activos y llamadas a la acción */
    --color-acento-hover: #9D75F8; /* Un tono ligeramente más claro para el hover */
    
    /* Typography */
    --font-main: 'Outfit', sans-serif;
    
    /* Layout */
    --container-width: 1200px;
    --transition-speed: 0.3s;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-principal);
    color: var(--texto-principal);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography elements */
h1, h2, h3 {
    font-weight: 800;
    line-height: 1.2;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    border: none;
}

.btn-primary {
    background: var(--color-acento);
    color: var(--texto-principal);
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
}

.btn-primary:hover {
    background: var(--color-acento-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.6);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(13, 13, 17, 0.85); /* rgba de --bg-principal */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.05); /* rgba de --plata-premium */
    padding: 1rem 0;
    transition: all var(--transition-speed) ease;
}

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

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

.brand-logo {
    height: 45px; /* Ajusta según necesidad */
    width: auto;
    filter: brightness(0) invert(1);
    transition: transform var(--transition-speed) ease;
}

.brand-logo:hover {
    transform: scale(1.05);
}

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    color: var(--plata-premium);
}

.nav-link:hover {
    color: var(--texto-principal);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-acento);
    transition: width var(--transition-speed) ease;
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.hamburger {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--texto-principal);
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 100%;
    background: inherit;
}

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

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: absolute;
    bottom: 18%; /* Subido para cuadrar dentro de la parte baja de la A */
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    text-align: center;
    z-index: 10;
    padding: 0 1rem;
    /* mix-blend-mode removed */
}

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2.5rem); /* Mucho más grande */
    color: #ffffff; /* Blanco puro */
    margin-bottom: 1.5rem; 
    font-weight: 800; /* Bold */
    text-transform: uppercase;
    letter-spacing: 2px; 
    animation: fadeInUp 2s ease-out 0s both; /* Entra antes (0s delay) y toma 2s */
}

.hero-section .btn {
    animation: fadeInUp 2s ease-out 0.2s both; /* Entra junto al texto */
}

/* Background Iso */
.hero-bg-iso {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80vw;
    max-width: 800px;
    z-index: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: none;
    perspective: 1500px; /* Perspectiva 3D */
}

.iso-3d-wrapper {
    position: relative;
    width: 100%;
    transform-style: preserve-3d;
    display: block;
}

.iso-bg-img {
    width: 100%;
    height: auto;
    /* Primero convertimos el logo a blanco, LUEGO le aplicamos el resplandor morado */
    filter: brightness(0) invert(1) drop-shadow(0 0 35px rgba(139, 92, 246, 0.9));
    opacity: 0.8;
    transform: translateZ(50px);
    display: block;
}

/* Silueta Animada */
.silueta-img {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 85vh;
    width: auto;
    z-index: 2;
    pointer-events: none;
    animation: slideInDiagonal 5s cubic-bezier(0.1, 0.9, 0.2, 1) 1s both; /* 1s delay, 5s duración total */
    transform-origin: bottom left;
}

@keyframes slideInDiagonal {
    0% {
        opacity: 0;
        transform: translate(-100px, -100px) scale(1.05);
    }
    100% {
        opacity: 1;
        transform: translate(0, 0) scale(1);
    }
}

/* Abstract Background Graphic */
.hero-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(139,92,246,0.12) 0%, rgba(13,13,17,0) 70%); /* Destellos sutiles de violeta neón */
    z-index: 1;
    pointer-events: none;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-section {
    padding: 6rem 0;
    background: transparent;
    position: relative;
    z-index: 2;
}

.about-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 4rem 3rem;
    /* Resplandor exterior sutil fijo en violeta neón (--color-acento) + sombra de profundidad */
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(139, 92, 246, 0.15);
    border: 1px solid rgba(226, 232, 240, 0.05);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
}

.about-heading .section-title {
    margin-bottom: 1rem;
    color: var(--color-acento);
}

@media (min-width: 992px) {
    .about-heading .section-title {
        text-align: left;
    }
}

.about-subtitle {
    font-size: 1.5rem;
    color: var(--texto-principal);
    font-weight: 300;
    line-height: 1.4;
    margin-bottom: 1rem;
}

.about-text p {
    color: var(--plata-premium);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.about-text p:last-child {
    margin-bottom: 0;
}

@media (max-width: 991px) {
    .about-heading {
        text-align: center;
    }
    
    .about-card {
        padding: 3rem 1.5rem;
    }
}



/* ==========================================================================
   Sets & Gallery Section
   ========================================================================== */
.sets-section {
    padding: 6rem 0;
    background: transparent;
    position: relative;
    z-index: 2;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    color: var(--texto-principal);
}

.sets-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

@media (max-width: 1024px) {
    .sets-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 600px) {
    .sets-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.set-card {
    background: transparent;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease, border-color var(--transition-speed) ease;
    cursor: pointer;
    border: 1px solid rgba(226, 232, 240, 0.05);
    display: flex;
    flex-direction: column;
}

/* Pseudo-elemento para el borde degradado */
.set-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 2px;
    background: linear-gradient(135deg, var(--color-acento) 0%, rgba(139, 92, 246, 0.1) 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
    pointer-events: none;
    z-index: 2;
}

.set-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.6), 0 0 25px rgba(139, 92, 246, 0.25);
    border-color: transparent;
}

.set-card:hover::after {
    opacity: 1;
}

.set-image-wrapper {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    border-radius: 12px 12px 0 0;
    position: relative;
}

.set-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
    display: block;
}

.set-card:hover .set-image-wrapper img {
    transform: scale(1.05);
}

.set-info {
    padding: 1.5rem;
    background: rgba(20, 20, 28, 0.45);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid rgba(139, 92, 246, 0.2);
    flex-grow: 1;
}

.set-title {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--texto-principal);
}

.set-date {
    font-size: 0.9rem;
    color: var(--plata-premium);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: var(--bg-card);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(226, 232, 240, 0.05);
}

.footer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 2rem;
}

.footer-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--texto-principal);
}

.footer-info p {
    color: var(--plata-premium);
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(226, 232, 240, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--plata-premium);
    transition: background var(--transition-speed) ease, color var(--transition-speed) ease, transform var(--transition-speed) ease;
}

.social-icon:hover {
    background: var(--color-acento);
    color: var(--texto-principal);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
}

.footer-bottom {
    margin-top: 2rem;
    font-size: 0.8rem;
    color: var(--plata-premium);
    opacity: 0.7;
}

.legal-links {
    margin-bottom: 0.5rem;
}

.legal-links a {
    color: var(--plata-premium);
    text-decoration: none;
    transition: color 0.3s ease;
    margin: 0 5px;
}

.legal-links a:hover {
    color: var(--color-acento);
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(150%);
    width: 90%;
    max-width: 800px;
    background: rgba(13, 13, 17, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 12px;
    padding: 20px;
    z-index: 1000;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 15px rgba(139, 92, 246, 0.15);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.cookie-banner.show {
    transform: translateX(-50%) translateY(0);
}

.cookie-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.cookie-content p {
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--plata-premium);
    text-align: center;
    margin: 0;
}

.cookie-content a {
    color: var(--color-acento);
    text-decoration: underline;
}

.cookie-buttons {
    display: flex;
    gap: 10px;
    width: 100%;
    justify-content: center;
}

.cookie-buttons .btn {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    flex: 1;
    max-width: 180px;
}

@media (min-width: 768px) {
    .cookie-banner {
        flex-direction: row;
        padding: 20px 30px;
    }
    .cookie-content {
        flex-direction: row;
        justify-content: space-between;
        width: 100%;
        text-align: left;
    }
    .cookie-content p {
        text-align: left;
        flex: 1;
    }
    .cookie-buttons {
        width: auto;
    }
}

/* ==========================================================================
   Contact Modal
   ========================================================================== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(13, 13, 17, 0.85); /* Semi-transparent background */
    backdrop-filter: blur(8px); /* Desenfocado */
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--color-acento);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(139, 92, 246, 0.2);
    border-radius: 16px;
    padding: 3rem;
    width: 90%;
    max-width: 500px;
    position: relative;
    transform: translateY(-20px);
    transition: transform 0.3s ease;
    max-height: 90vh;
    overflow-y: auto;
}

.modal.show .modal-content {
    transform: translateY(0);
}

.close-btn {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    color: var(--plata-premium);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
    line-height: 1;
}

.close-btn:hover {
    color: var(--color-acento);
}

.modal-title {
    color: var(--texto-principal);
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--plata-premium);
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(13, 13, 17, 0.5);
    border: 1px solid rgba(226, 232, 240, 0.1);
    border-radius: 8px;
    color: var(--texto-principal);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-acento);
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.2);
}

/* Custom Select UI */
.custom-select-wrapper {
    position: relative;
    user-select: none;
    width: 100%;
}

.custom-select-trigger {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(13, 13, 17, 0.5);
    border: 1px solid rgba(226, 232, 240, 0.1);
    border-radius: 8px;
    color: var(--texto-principal);
    font-size: 1rem;
    cursor: pointer;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.custom-select-wrapper.open .custom-select-trigger {
    border-color: var(--color-acento);
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.2);
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.custom-select-trigger .arrow {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--texto-principal);
    transition: transform 0.3s ease;
}

.custom-select-wrapper.open .custom-select-trigger .arrow {
    transform: rotate(180deg);
}

.custom-options {
    position: absolute;
    display: none;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-card); /* 1A1A22 */
    border: 1px solid var(--color-acento);
    border-top: none;
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
    z-index: 100;
    overflow: hidden;
}

.custom-select-wrapper.open .custom-options {
    display: block;
    animation: fadeInDown 0.2s ease-out;
}

.custom-option {
    display: block;
    padding: 0.8rem 1rem;
    color: var(--texto-principal);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.custom-option:hover {
    background-color: var(--color-acento);
}

.contact-form textarea {
    resize: vertical;
}

.contact-form .btn-submit {
    width: 100%;
    margin-top: 1rem;
}

/* ==========================================================================
   Coverflow Showcase Modal
   ========================================================================== */
.showcase-fullscreen {
    padding: 0;
    justify-content: center;
    background: rgba(13, 13, 17, 0.95);
    backdrop-filter: blur(15px);
}

.coverflow-wrapper {
    position: relative;
    width: 100%;
    height: 60vh;
    perspective: 1000px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: -2rem;
}

.coverflow-container {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    display: flex;
    justify-content: center;
    align-items: center;
}

.coverflow-item {
    position: absolute;
    width: 300px; /* Poster width */
    height: auto;
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.5s ease, box-shadow 0.5s ease;
    cursor: pointer;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(226, 232, 240, 0.1);
    background: transparent;
}

.coverflow-item img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
    pointer-events: none;
}

/* Active center item */
.coverflow-item.active {
    transform: translateZ(100px) rotateY(0deg) scale(1.1);
    opacity: 1;
    z-index: 10;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8), 0 0 30px rgba(139, 92, 246, 0.4);
    border-color: var(--color-acento);
}

/* Adjacent items (left/right) */
.coverflow-item.prev-1 {
    transform: translateX(-60%) translateZ(-100px) rotateY(30deg);
    opacity: 0.6;
    z-index: 5;
}

.coverflow-item.next-1 {
    transform: translateX(60%) translateZ(-100px) rotateY(-30deg);
    opacity: 0.6;
    z-index: 5;
}

.coverflow-item.prev-2 {
    transform: translateX(-110%) translateZ(-250px) rotateY(45deg);
    opacity: 0.3;
    z-index: 4;
}

.coverflow-item.next-2 {
    transform: translateX(110%) translateZ(-250px) rotateY(-45deg);
    opacity: 0.3;
    z-index: 4;
}

/* Hidden items */
.coverflow-item.hidden {
    transform: translateZ(-400px);
    opacity: 0;
    z-index: 1;
    pointer-events: none;
}

/* Showcase Info Layer */
.showcase-info-layer {
    position: absolute;
    bottom: 5vh;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    width: 90%;
    max-width: 600px;
    z-index: 20;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.showcase-title {
    color: var(--color-acento);
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 2px;
    text-shadow: 0 0 10px rgba(139, 92, 246, 0.5);
}

.showcase-subtitle {
    color: var(--plata-premium);
    font-size: 1rem;
    line-height: 1.5;
}

@media (max-width: 768px) {
    .coverflow-item {
        width: 220px;
    }
    .coverflow-item.prev-1 {
        transform: translateX(-40%) translateZ(-150px) rotateY(30deg);
    }
    .coverflow-item.next-1 {
        transform: translateX(40%) translateZ(-150px) rotateY(-30deg);
    }
    .showcase-title {
        font-size: 1.4rem;
    }
    .coverflow-prev { left: 5%; }
    .coverflow-next { right: 5%; }
}

.coverflow-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(13, 13, 17, 0.6);
    border: 1px solid var(--color-acento);
    color: var(--color-acento);
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 30;
    transition: background 0.3s ease, box-shadow 0.3s ease;
    backdrop-filter: blur(5px);
}

.coverflow-arrow:hover {
    background: var(--color-acento);
    color: var(--texto-principal);
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.5);
}

.coverflow-prev {
    left: 10%;
}

.coverflow-next {
    right: 10%;
}



/* ==========================================================================
   Premium Effects (Light Sweep, Particles, Liquid Reveal)
   ========================================================================== */
#particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none; /* Allows clicking through */
}

/* Ensure sections have a higher z-index than the particles canvas */
.hero-section, .about-section, .sets-section, .footer {
    position: relative;
    z-index: 1;
}



/* Liquid Reveal Transition */
.liquid-reveal {
    opacity: 0;
    filter: blur(15px);
    transform: translateY(60px) scale(0.9);
}

.liquid-reveal.visible {
    animation: liquidWaveReveal 1.2s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

@keyframes liquidWaveReveal {
    0% {
        opacity: 0;
        filter: blur(15px);
        transform: translateY(60px) scale(0.9);
    }
    50% {
        filter: blur(5px);
        transform: translateY(-10px) scale(1.02);
    }
    100% {
        opacity: 1;
        filter: blur(0);
        transform: translateY(0) scale(1);
    }
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 768px) {
    /* Menú Móvil Full Screen */
    .main-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(13, 13, 17, 0.98);
        backdrop-filter: blur(15px);
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transform: translateY(-100%);
        transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
        z-index: 999;
    }
    
    .main-menu.active {
        transform: translateY(0);
    }

    .nav-list {
        display: flex;
        flex-direction: column;
        gap: 3rem;
        text-align: center;
    }
    
    .nav-link {
        font-size: 1.5rem;
    }

    /* Botón Hamburguesa Animado */
    .mobile-menu-toggle {
        display: block;
        z-index: 1001; /* Siempre por encima del menú abierto */
        position: relative;
    }

    .mobile-menu-toggle.active .hamburger {
        background: transparent;
    }
    
    .mobile-menu-toggle.active .hamburger::before {
        transform: rotate(45deg);
        top: 0;
    }
    
    .mobile-menu-toggle.active .hamburger::after {
        transform: rotate(-45deg);
        top: 0;
    }
    
    .hamburger, .hamburger::before, .hamburger::after {
        transition: all 0.3s ease;
    }
    
    .sets-grid {
        grid-template-columns: 1fr;
    }

    /* Silueta Móvil Optimizada y Centrada */
    .silueta-img {
        left: 50%;
        height: 60vh; /* Más pequeña para no ahogar el layout en vertical */
        animation: slideInDiagonalMobile 4s cubic-bezier(0.1, 0.9, 0.2, 1) 1s both;
    }
}

/* Animación de entrada de la silueta ajustada para el centro en móvil */
@keyframes slideInDiagonalMobile {
    0% {
        opacity: 0;
        transform: translate(calc(-50% - 30px), -30px) scale(1.05);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, 0) scale(1);
    }
}