/*body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(145deg, #f8fafc 0%, #e9f0f5 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 2rem 0;
}*/
.donation-card {
    border: none;
    border-radius: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    overflow: hidden;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.9);
}
.gpu-header {
    background: linear-gradient(135deg, #0a1a2b 0%, #1a3b5c 100%);
    color: white;
    padding: 2rem 2rem 1.5rem 2rem;
    border-bottom: 4px solid #76b900; /* NVIDIA zelená */
}
.gpu-title {
    font-weight: 700;
    font-size: 2rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color:white;
}
.gpu-sub {
    color: #aaccff;
    font-weight: 400;
    font-size: 1rem;
}
.gpu-specs {
    background: #f1f5f9;
    border-radius: 1rem;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-left: 6px solid #76b900;
}
.spec-item {
    font-size: 1.1rem;
    padding: 0.3rem 0;
}
.spec-item i {
    color: #1a3b5c;
    width: 28px;
}
.progress {
    height: 2rem;
    border-radius: 2rem;
    background-color: #e2e8f0;
    margin: 1.5rem 0;
}
.progress-bar {
    background: linear-gradient(90deg, #76b900, #4c7a00);
    font-weight: 600;
    font-size: 1rem;
    line-height: 2rem;
}
.qr-container {
    background: white;
    padding: 1.5rem;
    border-radius: 1.5rem;
    box-shadow: 0 10px 25px -8px rgba(0,0,0,0.2);
    border: 2px solid #1a3b5c;
    display: inline-block;
}
.btn-donate {
    background: #1a3b5c;
    border: none;
    border-radius: 3rem;
    padding: 1rem 2.5rem;
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: 0.5px;
    color: white;
    box-shadow: 0 12px 28px -10px #1a3b5c;
    transition: all 0.2s ease;
    width: 100%;
}
.btn-donate:hover {
    background: #0f2a40;
    transform: scale(1.02);
    box-shadow: 0 18px 32px -8px #0f2a40;
}
.btn-bank {
    background: transparent;
    border: 2px solid #1a3b5c;
    border-radius: 3rem;
    padding: 0.8rem 2rem;
    font-weight: 600;
    color: #1a3b5c;
    transition: all 0.2s;
}
.btn-bank:hover {
    background: #1a3b5c;
    color: white;
}
.footer-note {
    font-size: 0.9rem;
    color: #4a5568;
    background: #e9f0f5;
    border-radius: 3rem;
    padding: 0.8rem 1.5rem;
}
.highlight {
    background: #76b90020;
    border-radius: 1rem;
    padding: 1rem;
    font-weight: 500;
}