/* Reset y configuración base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f7f7ff, #eef2ff, #fff0f6);
    background-size: 300% 300%;
    animation: bgShift 20s ease infinite;
    min-height: 100vh;
}

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

/* Header */
.header {
    text-align: center;
    margin-bottom: 80px;
    background: rgba(255, 255, 255, 0.96);
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.logo-container {
    margin-bottom: 30px;
}

.logo {
    max-width: 200px;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: floatY 6s ease-in-out infinite;
}

.logo:hover {
    transform: scale(1.05) translateY(-2px);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.22);
}

.header-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #667eea, #ff6cab, #764ba2, #ffc371);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-content h2 {
    font-size: 1.5rem;
    font-weight: 500;
    color: #7f8c8d;
    margin-bottom: 20px;
}

.welcome-text {
    font-size: 1.1rem;
    color: #555;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Grid de proyectos */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 50px;
    margin-top: 20px;
}

/* Cards de proyectos */
.project-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea, #ff6cab, #764ba2, #ffc371);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.project-card:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 18px 40px rgba(102, 126, 234, 0.25), 0 8px 24px rgba(118, 75, 162, 0.15);
}

.card-icon {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.project-card:hover .card-icon {
    color: #ff6cab;
    transform: scale(1.1) translateZ(10px);
    text-shadow: 0 8px 30px rgba(255, 108, 171, 0.4);
}

.card-content h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 20px;
    line-height: 1.3;
}

.project-info {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.info-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.95rem;
    color: #7f8c8d;
    font-weight: 500;
}

.info-item i {
    color: #667eea;
    width: 16px;
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px;
    background: rgba(255, 255, 255, 0.96);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.footer p {
    color: #7f8c8d;
    font-size: 0.95rem;
}

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

@keyframes bgShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes floatY {
    0% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
    100% { transform: translateY(0); }
}

.project-card {
    animation: fadeInUp 0.6s ease forwards;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }
.project-card:nth-child(5) { animation-delay: 0.5s; }
.project-card:nth-child(6) { animation-delay: 0.6s; }
.project-card:nth-child(7) { animation-delay: 0.7s; }
.project-card:nth-child(8) { animation-delay: 0.8s; }
.project-card:nth-child(9) { animation-delay: 0.9s; }
.project-card:nth-child(10) { animation-delay: 1.0s; }

/* Responsive */
@media (max-width: 1200px) {
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header {
        padding: 30px 20px;
        margin-bottom: 30px;
    }
    
    .header-content h1 {
        font-size: 2rem;
    }
    
    .header-content h2 {
        font-size: 1.2rem;
    }
    
    .welcome-text {
        font-size: 1rem;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .project-card {
        padding: 25px;
    }
    
    .card-icon {
        font-size: 2.5rem;
    }
    
    .card-content h3 {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .header-content h1 {
        font-size: 1.8rem;
    }
    
    .logo {
        max-width: 150px;
    }
    
    .project-card {
        padding: 20px;
    }
}