:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --text-primary: #333;
    --text-secondary: #6c757d;
    --radius-lg: 20px;
    --radius-full: 50px;
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.1);
}

.section-padding { padding: 60px 0; }
@media (min-width: 768px) { .section-padding { padding: 100px 0; } }

.modern-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px;
    transition: transform 0.3s ease;
}
.modern-card:hover { transform: translateY(-5px); }

.icon-circle {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: white;
    font-size: 2rem;
}

.btn-primary-gradient {
    background: var(--primary-gradient);
    border: none;
    border-radius: var(--radius-full);
    padding: 15px 35px;
    color: white;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: transform 0.3s ease;
}
.btn-primary-gradient:hover { transform: translateY(-2px); color: white; }

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }