:root {
    --azul-principal: #0A0E38;
    --azul-secundario: #11154D;
    --azul-hover: #1F2A78;
    --rojo-acento: #E31E24;
    --blanco: #FFFFFF;
    --gris-claro: #EAEAEA;
    --texto-secundario: #BFC3D9;
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--azul-principal);
    color: var(--blanco);
    line-height: 1.6;
    overflow-x: hidden;
}

/* HERO */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(10,14,56,0.85), rgba(10,14,56,0.85)), url('https://images.pexels.com/photos/2641886/pexels-photo-2641886.jpeg?auto=compress&cs=tinysrgb&w=1600');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
}

.hero-content {
    z-index: 2;
    padding: 2rem;
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

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

.hero-subtitle {
    font-size: 1.4rem;
    color: var(--texto-secundario);
    margin-bottom: 2rem;
}

.btn {
    background: var(--rojo-acento);
    border: none;
    padding: 1rem 2rem;
    margin: 0.5rem;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 40px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--blanco);
    font-family: 'Montserrat', sans-serif;
    box-shadow: 0 4px 15px rgba(227,30,36,0.3);
}

.btn:hover {
    background: var(--blanco);
    color: var(--azul-principal);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* TABS */
.tabs-container {
    max-width: 1400px;
    margin: 3rem auto;
    padding: 0 2rem;
}

.tab-content {
    display: none;
    animation: fadeInUp 0.8s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Cards */
.card-glass, .kit-card {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 24px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.card-glass:hover, .kit-card:hover {
    transform: scale(1.03);
    border-color: var(--rojo-acento);
    background: rgba(255,255,255,0.1);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.rojo {
    color: var(--rojo-acento);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.kit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 2rem;
}

.kit-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 16px;
    margin-bottom: 1rem;
}

.porque-grid {
    display: flex;
    gap: 3rem;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 4rem;
}

.porque-text {
    flex: 1;
}

.porque-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.porque-image {
    flex: 1;
}

.porque-image img {
    width: 100%;
    border-radius: 32px;
    box-shadow: 0 20px 30px rgba(0,0,0,0.4);
}

/* Formulario premium */
.form-premium {
    background: var(--blanco);
    color: #1a1a2e;
    border-radius: 32px;
    padding: 2.5rem;
    box-shadow: 0 25px 50px rgba(0,0,0,0.2);
}

.form-fieldset {
    border: none;
    margin-bottom: 2rem;
    padding: 0;
    border-top: 1px solid #e0e0e0;
}

.form-fieldset legend {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--azul-principal);
    padding-right: 1rem;
    width: auto;
    margin-left: 0;
    margin-bottom: 1rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.form-group {
    flex: 1;
    margin-bottom: 1.2rem;
}

.form-group label {
    font-weight: 600;
    display: block;
    margin-bottom: 0.4rem;
    color: #2d2d42;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 0.9rem 1rem;
    border: 1px solid #ccc;
    border-radius: 12px;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    font-size: 0.95rem;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--rojo-acento);
    box-shadow: 0 0 0 3px rgba(227,30,36,0.2);
}

.qr-container {
    background: #f5f5f5;
    padding: 1rem;
    border-radius: 20px;
    text-align: center;
    margin-bottom: 1.5rem;
}

.qr-container img {
    margin: 0.5rem 0;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.checkbox-group {
    margin: 1rem 0;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-group input {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.btn-submit {
    background: var(--azul-principal);
    color: var(--blanco);
    border: none;
    padding: 1rem 1.8rem;
    width: 100%;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
}

.btn-submit:hover {
    background: var(--rojo-acento);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(227,30,36,0.3);
}

/* Contador y barra de progreso */
.countdown-progress {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    background: var(--azul-secundario);
    padding: 2rem;
    border-radius: 60px;
    margin: 2rem;
}

.countdown-card, .progress-card {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(8px);
    border-radius: 32px;
    padding: 1.5rem;
    min-width: 240px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
}

.progress-bar-container {
    background: #2d2f4a;
    border-radius: 50px;
    height: 20px;
    margin: 1rem 0;
    overflow: hidden;
}

.progress-fill {
    width: 0%;
    height: 100%;
    background: var(--rojo-acento);
    transition: width 0.5s ease;
}

.sponsors, .map-placeholder, .faq {
    text-align: center;
    margin: 3rem 2rem;
}

.sponsor-logos {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.sponsor-logos img {
    background: white;
    padding: 0.5rem;
    border-radius: 16px;
    filter: brightness(0.9);
    transition: var(--transition);
}

.sponsor-logos img:hover {
    transform: scale(1.05);
    filter: brightness(1);
}

.map-frame {
    background: #1a1e3a;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 32px;
    font-size: 1.2rem;
    border: 1px solid rgba(255,255,255,0.1);
}

.accordion-item {
    background: var(--azul-secundario);
    margin: 1rem auto;
    max-width: 800px;
    border-radius: 28px;
    overflow: hidden;
}

.accordion-btn {
    background: transparent;
    color: var(--blanco);
    padding: 1rem 1.5rem;
    width: 100%;
    text-align: left;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accordion-btn::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    transition: transform 0.3s;
}

.accordion-btn.active::after {
    transform: rotate(180deg);
}

.accordion-content {
    display: none;
    padding: 0 1.5rem 1.5rem;
    background: rgba(0,0,0,0.2);
    color: var(--gris-claro);
}

footer {
    background: #070B2D;
    color: var(--texto-secundario);
    text-align: center;
    padding: 3rem 1rem;
    margin-top: 2rem;
}

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

.footer-social a {
    color: var(--rojo-acento);
    font-size: 1.5rem;
    margin: 0 0.8rem;
    transition: var(--transition);
    display: inline-block;
}

.footer-social a:hover {
    transform: translateY(-3px);
    color: white;
}

/* Alerta responsabilidad */
.alert-responsabilidad {
    background: rgba(227,30,36,0.1);
    border-left: 5px solid var(--rojo-acento);
    padding: 1rem;
    border-radius: 16px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: #2d2d42;
}

.alert-responsabilidad i {
    color: var(--rojo-acento);
    margin-right: 0.5rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.8);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: var(--blanco);
    color: var(--azul-principal);
    padding: 2rem;
    border-radius: 40px;
    text-align: center;
    max-width: 400px;
    width: 90%;
    animation: bounceIn 0.5s;
}

@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    80% { transform: scale(1.05); }
    100% { transform: scale(1); opacity: 1; }
}

.close {
    float: right;
    font-size: 1.8rem;
    cursor: pointer;
    transition: 0.2s;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero-title { font-size: 2.2rem; }
    .hero-subtitle { font-size: 1rem; }
    .tabs-container { padding: 0 1rem; }
    .form-premium { padding: 1.5rem; }
    .kit-grid { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
}

/* Animaciones adicionales futuristas */
@keyframes pulseGlow {
    0% { text-shadow: 0 0 0px var(--rojo-acento); }
    50% { text-shadow: 0 0 10px var(--rojo-acento); }
    100% { text-shadow: 0 0 0px var(--rojo-acento); }
}

.btn-primary, .btn-submit {
    animation: pulseGlow 2s infinite;
}