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

html {
    height: 100%;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 600px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    animation: fadeInScale 0.8s ease-out;
}

/* Animación de entrada */
@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Header */
.header {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="rgba(255,255,255,0.1)"><polygon points="0,0 1000,0 1000,80 0,100"/></svg>') no-repeat bottom center;
    background-size: cover;
}

.logo {
    position: relative;
    z-index: 1;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.subtitle {
    font-size: 1.1rem;
    font-weight: 300;
    opacity: 0.9;
    letter-spacing: 0.5px;
}

/* Contenido principal */
.main-content {
    padding: 2.5rem;
}

.card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.card-header {
    text-align: center;
    margin-bottom: 2rem;
}

.card-header h2 {
    font-size: 1.6rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.decoration-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    margin: 0 auto;
    border-radius: 2px;
}

/* Información del estudiante */
.student-info {
    margin-bottom: 2rem;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.info-item:last-child {
    border-bottom: none;
}

.info-item:hover {
    background: rgba(102, 126, 234, 0.05);
    margin: 0 -1rem;
    padding-left: 1rem;
    padding-right: 1rem;
    border-radius: 8px;
}

.label {
    font-weight: 600;
    color: #555;
    font-size: 0.95rem;
    min-width: 140px;
}

.value {
    font-weight: 400;
    color: #2c3e50;
    text-align: right;
    font-size: 0.95rem;
    flex: 1;
}

/* Información del curso */
.course-info {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.course-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.course-info p {
    color: #666;
    font-size: 0.95rem;
    font-weight: 500;
}

/* Footer */
.footer {
    background: #f8f9fa;
    padding: 1.5rem 2rem;
    text-align: center;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.footer p {
    color: #666;
    font-size: 0.85rem;
    font-weight: 400;
}

/* Efectos adicionales */
.card {
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s;
}

.card:hover::before {
    left: 100%;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }
    
    .container {
        max-width: 100%;
        margin: 0;
    }
    
    .header {
        padding: 1.5rem;
    }
    
    .logo h1 {
        font-size: 1.5rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .main-content {
        padding: 2rem 1.5rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .info-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        padding: 1.2rem 0;
    }
    
    .label {
        min-width: auto;
        font-weight: 700;
        color: #667eea;
    }
    
    .value {
        text-align: left;
    }
    
    .footer {
        padding: 1.2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        border-radius: 15px;
    }
    
    .card-header h2 {
        font-size: 1.4rem;
    }
    
    .course-info h3 {
        font-size: 1.1rem;
    }
    
    .label,
    .value {
        font-size: 0.9rem;
    }
}

/* Animaciones suaves */
.info-item,
.course-info,
.card {
    animation: slideInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.info-item:nth-child(1) { animation-delay: 0.1s; }
.info-item:nth-child(2) { animation-delay: 0.2s; }
.info-item:nth-child(3) { animation-delay: 0.3s; }
.info-item:nth-child(4) { animation-delay: 0.4s; }
.course-info { animation-delay: 0.5s; }

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}