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

:root {
    --primary-color: #1c232bff;
    --secondary-color: #0046dcff;
    --gradient-1: linear-gradient(135deg, rgb(38, 139, 255) 0%, #0046dcff 100%);
    --gradient-2: linear-gradient(45deg, #0046dcff 0%, #1c232bff 100%);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--primary-color);
    color: #ffffff;
    overflow-x: hidden;
}

.container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 20px;
}

/* Animación de fondo */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-1);
    opacity: 0.3;
    z-index: 0;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% {
        background: linear-gradient(135deg, #1c232bff 0%, #0046dcff 100%);
    }
    50% {
        background: linear-gradient(135deg, #0046dcff 0%, #1c232bff 100%);
    }
}

/* Contenido principal */
.content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 1200px;
    width: 100%;
    animation: fadeInUp 1s ease-out;
}

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

/* Logo */
.logo-container {
    margin-bottom: 30px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.logo {
    max-width: 180px;
    height: auto;
    filter: drop-shadow(0 0 30px rgba(0, 70, 220, 0.5));
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.1);
}

/* Título */
.title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 50px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

/* Features Grid */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 70, 220, 0.3);
    border-radius: 15px;
    padding: 30px;
    transition: all 0.3s ease;
    animation: fadeIn 0.6s ease-out backwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--secondary-color);
    box-shadow: 0 10px 30px rgba(0, 70, 220, 0.4);
    background: rgba(0, 70, 220, 0.1);
}

.icon {
    font-size: 3rem;
    margin-bottom: 15px;
    animation: bounce 2s ease-in-out infinite;
}

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

.feature-card p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
}

/* Barra de carga */
.loading-bar {
    width: 100%;
    max-width: 500px;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    margin: 0 auto 30px;
    overflow: hidden;
}

.loading-progress {
    height: 100%;
    background: var(--gradient-1);
    border-radius: 10px;
    animation: loading 2s ease-in-out infinite;
}

@keyframes loading {
    0% {
        width: 0%;
    }
    50% {
        width: 70%;
    }
    100% {
        width: 100%;
    }
}

/* Footer text */
.footer-text {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
}

/* Partículas */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--secondary-color);
    border-radius: 50%;
    opacity: 0.6;
    animation: particleFloat 10s linear infinite;
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100px) translateX(100px);
        opacity: 0;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .title {
        font-size: 2.5rem;
    }

    .features {
        grid-template-columns: 1fr;
    }

    .logo {
        max-width: 120px;
    }

    .feature-card {
        padding: 20px;
    }

    .icon {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 2rem;
    }

    .feature-card p {
        font-size: 1rem;
    }
}