/* Single Patent Card - Centered & Beautiful */
.patents {
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    padding: 5rem 0;
}

.patents-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

.patent-item {
    background: white;
    padding: 3rem;
    border-radius: 24px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 2px solid #e5e7eb;
    width: 100%;
    text-align: center;
}

.patent-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(124, 58, 237, 0.15);
    border-color: var(--primary-color);
}

.patent-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.patent-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #7c3aed, #8b5cf6);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    box-shadow: 0 8px 24px rgba(124, 58, 237, 0.3);
}

.patent-status {
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.patent-status.pending {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: #92400e;
}

.patent-status.granted {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    color: #065f46;
}

.patent-item h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.4;
    text-align: left;
}

.patent-number {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.05rem;
    margin-bottom: 1rem;
    text-align: left;
}

.patent-year {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 2px solid #f1f5f9;
    text-align: left;
}

/* Mobile Responsive */
@media screen and (max-width: 768px) {
    .patents-grid {
        padding: 0 1rem;
    }

    .patent-item {
        padding: 2rem;
    }

    .patent-icon {
        width: 60px;
        height: 60px;
        font-size: 1.75rem;
    }

    .patent-item h3 {
        font-size: 1.25rem;
    }

    .patent-number {
        font-size: 0.95rem;
    }
}